Title of Invention

A DEVICE FOR CUTTING SEAL OF A PACK

Abstract

The present invention relates to a device for cutting seal of a pack,said device comprising a hollow upper jaw housing a cutting instrument, a wedged having tapering placed between an upper inner surface of the upper jaw and the cutting instrument, a means for adjusting the longitudinal movement of the wedge, a plurality of holding means a hold a cutting instrument, a hollow lower jaw housing a supporting means, a wedged having tapering placed between and lower inner surfaced of the lower jaw and the supporting means for adjusting the longitudinal movement of the wedge and a plurality of holding means to hold the supporting menas.

Full Text

FORM 2 THE PATENTS ACT, 1970 (39 of 1970) COMPLETE SPECIFICATION (See section 10) "A DEVICE FOR CUTTING SEAL OF A PACK" MULTI PACK SYSTEMS PVT. LTD., an Indian company of 2nd Floor, Patriot Complex, Ellora Park, Baroda 390 007, Gujarat, India. The following specification (particularly) describes the nature of the invention and the manner in which it is to be performed. A DEVICE FOR CUTTING SEAL OF A PACK FIELD OF THE INVENTION: The present invention relates to a device for cutting seal of a pack. BACKGROUND OF THE INVENTION: The existing mechanism of setting the knife in crimp jaws is described below. The knife is located in the upper jaw which is adjusted parallel to anvil. The setting mechanism of knife mainly consists of holding screws and jacking screws. The knife is initially taken fully up in the upper jaw by slackening jacking screws and tightening holding screws. Both the top and bottom jaws are kept in close condition in tangen. The knife is then brought down by slackening the holding screws and tightening the jacking screws one after the other starting from one end of the knife. Cutter starts going down parallel to anvil. The above operation is repeated to bring the cutter in close contact with the anvil. The knife setting is tested by inserting a sheet of paper between cutter and anvil of top and bottom jaws and tuned, if necessary. The holding screws are finally fully tightened and locked after the cutter is correctly set and fine-tuned. The anvil is located in the lower jaw and is adjusted with respect to profile of the jaw. The setting of anvil is done by holding screws and jacking screws by the same method as explained above for knife setting. , The existing method of setting the knife and anvil is explained in Figure 1. LIMITATIONS AND PROBLEMS IN THE EXISTING MECHANISM: Here the following are the major limitations and problems which are generally being faced during setting process (a) This system is very complex and complicated. (b) Repeated trial and error method requires to be done for fine setting of cutter parallel to anvil. 2 (c) The time that is required to spend for final setting and fine tuning of knife is very high. (d) Very high skill of the operator is required for setting knife and anvil. Thus, there is a need for improving the device for setting knife and anvil in crimp jaws for cutting seal of pack of product. In the present invention the Applicants have therefore, provided a new device for setting the knife and anvil in crimp jaws for cutting seal of pack of product. OBJECTS OF THE PRESENT INVENTION: The main object of the present invention is to provide a device for cutting seal of a pack. SUMMARY OF THE INVENTION: Accordingly, the present invention provides a device for cutting seal of a pack. DETAILED DESCRIPTION OF THE PRESENT INVENTION: Accordingly, the present invention provides a device for cutting seal of a pack, said device comprising: a hollow upper jaw (110) housing a cutting instrument (12) having a front cutting edge (14) and a tapered rear supporting face (16); a first wedge (18) placed between an upper inner surface (20) of the upper jaw (10) and the rear supporting face (16) of the cutting instrument (12), said first wedge having tapering at a face (22) which is in contact with the rear face (16) of the cutting instrument (12); a first means (24) for adjusting the longitudinal moment of the first wedge (18); plurality of first holding means (26) to hold the cutting instrument (12) inside the hollow upper jaw (10); a hollow lower jaw (28), placed below the upper jaw (10) and housing a supporting means (30) having a front supporting edge (32) and a tapered rear face (34); a second wedge (36) placed between a lower inner surface (38) of the lower jaw (28) and the rear face (34) of the supporting means (30), said second wedge (36) having 3 tapering at a face (40) which is in contact with the rear face (34) of the supporting means (30); a second means (42) for adjusting the longitudinal moment of the second wedge (30), and plurality of second holding means (44) to hold the supporting means (30) inside the hollow lower jaw (28). In an embodiment of the present invention, the cutting instrument (12) is a knife. In another embodiment of the present invention, the cutting edge (14) of the cutting instrument (12) is projecting outside the hollow upper jaw (10). In yet another embodiment of the present invention, the first wedge (18) is constructed such that the face (22) which is in contact with the cutting instrument (16) is tapered at one end and broader at other end. In still another embodiment of the present invention, a length of the first wedge (18) is less than an inner length of the upper jaw (10). In one more embodiment of the present invention, the cutting instrument (12) is constructed such that the front cutting edge (14) is parallel to the inner surface (20) of the upper jaw. In one another embodiment of the present invention, the length of the cutting instrument (12) is equal to or less than the inner length of upper jaw (10). In a further embodiment of the present invention, the tapering on the first wedge (18) is equal and opposite of the tapering on the cutting instrument (12). In a further more embodiment of the present invention, the first means (24) is attached to the first wedge (18) and the first wedge is movable longitudinally in to-and-fro direction inside the hollow upper jaw by actuation of said first means (24). In an embodiment of the present invention, the first means (24) is a screw. 4 In another embodiment of the present invention, a head portion (46) of the screw is projecting outside the hollow upper jaw (10) and a tail portion (48) is inside the hollow upper jaw (10). In yet another embodiment of the present invention, the upper jaw (10) is provided with a hole (50) in order to accommodate the screw (24). In still another embodiment of the present invention, the cutting mechanism (12) is held parallel to the supporting means (30) using plurality of first holding means (26). In one more embodiment of the present invention, the first holding means (26) is a screw. In one another embodiment of the present invention, one end (52) of the first holding means (26) is in contact with an outer surface of the upper jaw (10) and the other end (54) is in contact with the cutting instrument (12). In a further embodiment of the present invention, the upper jaw (10) and the cutting mechanism (12) are provided with plurality of holes (56, 58, 60 and 62) to accommodate the plurality of first holding means (26). In a further more embodiment of the present invention, the supporting means (30) is an anvil. In an embodiment of the present invention, the second wedge (36) is constructed such that the face (40) which is in contact with the supporting means (30) is tapered at one end and broader at the other end. In another embodiment of the present invention, a length of the second wedge (36) is less than an inner length of the lower jaw (28). In yet another embodiment of the present invention, the supporting means (30) is constructed such that the supporting face (32) is parallel to the inner surface of the lower jaw (28). 5 In still another embodiment of the present invention, the length of the supporting means (30) is equal to or less than the inner length of lower jaw. In one more embodiment of the present invention, the tapering on the second wedge (36) is equal and opposite of the tapering on the supporting means (30). In one another embodiment of the present invention, the second means (42) is attached to the second wedge (36) and the second wedge is movable longitudinally in to-and-fro direction inside the hollow lower jaw (28) by actuation of said second means (42). In a further embodiment of the present invention, the second means (42) is a screw. In a further more embodiment of the present invention, the screw (24, 42) is a fine pitched screw. In an embodiment of the present invention, a head portion (64) of the screw (42) is projecting outside the hollow lower jaw (28) and a tail portion (66) thereof is inside the hollow lower jaw. In another embodiment of the present invention, the lower jaw (28) is provided with a hole (68) to accommodate the screw (42). In yet another embodiment of the present invention, the supporting means (30) is held parallel to the cutting means (12) using plurality of second holding means (44). In still another embodiment of the present invention, the second holding means (44) is a screw. In one more embodiment of the present invention, one end (70) of the second holding means (44) is in contact with an outer surface of the lower jaw (28) and the other end (72) is in contact with the supporting means (30). In a further embodiment of the present invention, the lower jaw (28) and the supporting means (30) are provided with plurality of holes (74, 76, 78 and 80) to accommodate the plurality of second holding means (44). 6 BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS: In the drawings accompanying the specification, Figure 1 represents the system of the prior art system. Figure 2 represents the system of the present invention. The invention is further described here below with respect to the working of the system, which is given by way of illustration and therefore, should not be construed to limit the scope of the invention in any manner. WORKING OF THE SYSTEM: The knife is located in the upper jaw which is adjusted parallel to anvil with newly developed device which consists of a taper wedge, a screw having fine pitch threads and end plates. The wedge with screw and one side end plate is first placed in the slot of the upper jaw and then the knife is placed on it. The wedge is designed having a particular taper face on one side. The knife is also made having equal amount of taper ratio to match with the taper face of wedge. The wedge is longitudinally moved along the length with the help of screw which makes the knife move upward or downward. To take the knife upward, the wedge is moved backward and to take the knife downward, the wedge is moved forward. The wedge is finally set such that the knife comes in close contact with anvil of lower jaw and parallel to it. The lock nut given on the screw is finally tightened and locked after the knife is accurately set and fine-tuned. The concept of the taper wedge developed by us does the following functions. (1) Because of equal ratio of taper both on the knife and wedge, sliding of the wedge in horizontal direction causes vertical movement of knife with high accuracy of equal movement through out the length of knife. (2) Because of having designed the screw with fine pitch threads, a perceptible movement of screw moving the wedge will give fine vertical movement of the knife that may be required for final setting. This will allow the operator to set the knife with lower skill. 7 (3) The anvil is located in the lower jaw above the taper wedge and is adjusted with respect to profile of jaw. The anvil is set by the same principle giving vertical movement to it by sliding the taper wedge horizontally. ADVANTAGES OF THE PRESENT INVENTION: 1. Very simple mechanism. 2. Introduction of concept of taper wedge has given excellent results. 3. Highly accurate setting possible without any significant fine-tuning. 4. If at all any fine setting is required, it can be easily achieved just by a perceptible movement of screw. 5. Time that is required for setting the knife is very low. 6. Operator does not require high skill for setting. 8 WE CLAIM: A device for cutting seal of a pack, said device comprising: (a) a hollow upper jaw (110) housing a cutting instrument (12) having a front cutting edge (14) and a tapered rear supporting face (16); (b) a first wedge (18) placed between an upper inner surface (20) of the upper jaw (10) and the rear supporting face (16) of the cutting instrument (12), said first wedge having tapering at a face (22) which is in contact with the rear face (16) of the cutting instrument (12); (c) a first means (24) for adjusting the longitudinal moment of the first wedge (18); (d) plurality of first holding means (26) to hold the cutting instrument (12) inside the hollow upper jaw (10); (e) a hollow lower jaw (28), placed below the upper jaw (10) and housing a supporting means (30) having a front supporting edge (32) and a tapered rear face (34); (f) a second wedge (36) placed between a lower inner surface (38) of the lower jaw (28) and the rear face (34) of the supporting means (30), said second wedge- (36) having tapering at a face (40) which is in contact with the rear face (34) of the supporting means (30); (g) a second means (42) for adjusting the longitudinal moment of the second wedge (30), and (h) plurality of second holding means (44) to hold the supporting means (30) inside the hollow lower jaw (28). 2. A device as claimed in claim 1, wherein the cutting instrument (12) is a knife. 3. A device as claimed in claim 1, wherein the cutting edge (14) of the cutting instrument (12) is projecting outside the hollow upper jaw (10). 4. A device as claimed in claim 1, wherein the first wedge (18) is constructed such that the face (22) which is in contact with the cutting instrument (16) is tapered at one end and broader at other end. 9 A device as claimed in claim 1, wherein a length of the first wedge (18) is less than an inner length of the upper jaw (10). A device as claimed in claim 1, wherein the cutting instrument (12) is constructed such that the front cutting edge (14) is parallel to the inner surface (20) of the upper jaw. A device as claimed in claim 1, wherein the length of the cutting instrument (12) is equal to or less than the inner length of upper jaw (10). A device as claimed in claim 1, wherein the tapering on the first wedge (18) is equal and opposite of the tapering on the cutting instrument (12). A device as claimed in claim 1, the first means (24) is attached to the first wedge (18) and the first wedge is movable longitudinally in to-and-fro direction inside the hollow upper jaw by actuation of said first means (24). A device as claimed in claim 1, wherein the first means (24) is a screw. A device as claimed in claim 10, wherein a head portion (46) of the screw is projecting outside the hollow upper jaw (10) and a tail portion (48) is inside the hollow upper jaw (10). A device as claimed in claim 11, wherein the upper jaw (10) is provided with a hole (50) in order to accommodate the screw (24). A device as claimed in claim 1, wherein the cutting mechanism (12) is held parallel to the supporting means (30) using plurality of first holding means (26). A device as claimed in claim 1, wherein the first holding means (26) is a screw. A device as claimed in claim 1, wherein one end (52) of the first holding means (26) is in contact with an outer surface of the upper jaw (10) and the other end (54) is in contact with the cutting instrument (12). 10 16. A device as claimed in claim 1, wherein the upper jaw (10) and the cutting mechanism (12) are provided with plurality of holes (56, 58, 60 and 62) to accommodate the plurality of first holding means (26). 17. A device as claimed in claim 1, wherein the supporting means (30) is an anvil. 18. A device as claimed in claim 1, wherein the second wedge (36) is constructed such that the face (40) which is in contact with the supporting means (30) is tapered at one end and broader at the other end. 19. A device as claimed in claim 1, wherein a length of the second wedge (36) is less than an inner length of the lower jaw (28). 20. A device as claimed in claim 1, wherein the supporting means (30) is constructed such that the supporting face (32) is parallel to the inner surface of the lower jaw (28). 21. A device as claimed in claim 1, wherein the length of the supporting means (30) is equal to or less than the inner length of lower jaw. 22. A device as claimed in claim 1, wherein the tapering on the second wedge (36) is equal and opposite of the tapering on the supporting means (30). 23. A device as claimed in claim 1, wherein the second means (42) is attached to the second wedge (36) and the second wedge is movable longitudinally in to-and-fro direction inside the hollow lower jaw (28) by actuation of said second means (42). 24. A device as claimed in claim 1, wherein the second means (42) is a screw. 25. A device as claimed in any of claims 10 and 24, wherein the screw (24, 42) is a fine pitched screw. 11 26. A device as claimed in claim 24, wherein a head portion (64) of the screw (42) is projecting outside the hollow lower jaw (28) and a tail portion (66) thereof is inside the hollow lower jaw. 27. A device as claimed in claim 26, wherein the lower jaw (28) is provided with a hole (68) to accommodate the screw (42). 28. A device as claimed in claim 1, wherein the supporting means (30) is held parallel to the cutting means (12) using plurality of second holding means (44). 29. A device as claimed in claim 1, wherein the second holding means (44) is a screw. 30. A device as claimed in claim 1, one end (70) of the second holding means (44) is in contact with an outer surface of the lower jaw (28) and the other end (72) is in contact with the supporting means (30). 31. A device as claimed in claim 1, wherein the lower jaw (28) and the supporting means (30) are provided with plurality of holes (74, 76, 78 and 80) to accommodate the plurality of second holding means (44). 32. A device for cutting seal of a pack substantially as herein described with reference to the accompanying drawings. Dated this 18th day of February, 2002. 12 FORM 2 THE PATENTS ACT, 1970 (39 of 1970) COMPLETE SPECIFICATION (See section 10) "A DEVICE FOR CUTTING SEAL OF A PACK" MULTI PACK SYSTEMS PVT. LTD., an Indian company of 2nd Floor, Patriot Complex, Ellora Park, Baroda 390 007, Gujarat, India. The following specification (particularly) describes the nature of the invention and the manner in which it is to be performed. A DEVICE FOR CUTTING SEAL OF A PACK FIELD OF THE INVENTION: The present invention relates to a device for cutting seal of a pack. BACKGROUND OF THE INVENTION: The existing mechanism of setting the knife in crimp jaws is described below. The knife is located in the upper jaw which is adjusted parallel to anvil. The setting mechanism of knife mainly consists of holding screws and jacking screws. The knife is initially taken fully up in the upper jaw by slackening jacking screws and tightening holding screws. Both the top and bottom jaws are kept in close condition in tangen. The knife is then brought down by slackening the holding screws and tightening the jacking screws one after the other starting from one end of the knife. Cutter starts going down parallel to anvil. The above operation is repeated to bring the cutter in close contact with the anvil. The knife setting is tested by inserting a sheet of paper between cutter and anvil of top and bottom jaws and tuned, if necessary. The holding screws are finally fully tightened and locked after the cutter is correctly set and fine-tuned. The anvil is located in the lower jaw and is adjusted with respect to profile of the jaw. The setting of anvil is done by holding screws and jacking screws by the same method as explained above for knife setting. , The existing method of setting the knife and anvil is explained in Figure 1. LIMITATIONS AND PROBLEMS IN THE EXISTING MECHANISM: Here the following are the major limitations and problems which are generally being faced during setting process (a) This system is very complex and complicated. (b) Repeated trial and error method requires to be done for fine setting of cutter parallel to anvil. 2 (c) The time that is required to spend for final setting and fine tuning of knife is very high. (d) Very high skill of the operator is required for setting knife and anvil. Thus, there is a need for improving the device for setting knife and anvil in crimp jaws for cutting seal of pack of product. In the present invention the Applicants have therefore, provided a new device for setting the knife and anvil in crimp jaws for cutting seal of pack of product. OBJECTS OF THE PRESENT INVENTION: The main object of the present invention is to provide a device for cutting seal of a pack. SUMMARY OF THE INVENTION: Accordingly, the present invention provides a device for cutting seal of a pack. DETAILED DESCRIPTION OF THE PRESENT INVENTION: Accordingly, the present invention provides a device for cutting seal of a pack, said device comprising: a hollow upper jaw (110) housing a cutting instrument (12) having a front cutting edge (14) and a tapered rear supporting face (16); a first wedge (18) placed between an upper inner surface (20) of the upper jaw (10) and the rear supporting face (16) of the cutting instrument (12), said first wedge having tapering at a face (22) which is in contact with the rear face (16) of the cutting instrument (12); a first means (24) for adjusting the longitudinal moment of the first wedge (18); plurality of first holding means (26) to hold the cutting instrument (12) inside the hollow upper jaw (10); a hollow lower jaw (28), placed below the upper jaw (10) and housing a supporting means (30) having a front supporting edge (32) and a tapered rear face (34); a second wedge (36) placed between a lower inner surface (38) of the lower jaw (28) and the rear face (34) of the supporting means (30), said second wedge (36) having 3 tapering at a face (40) which is in contact with the rear face (34) of the supporting means (30); a second means (42) for adjusting the longitudinal moment of the second wedge (30), and plurality of second holding means (44) to hold the supporting means (30) inside the hollow lower jaw (28). In an embodiment of the present invention, the cutting instrument (12) is a knife. In another embodiment of the present invention, the cutting edge (14) of the cutting instrument (12) is projecting outside the hollow upper jaw (10). In yet another embodiment of the present invention, the first wedge (18) is constructed such that the face (22) which is in contact with the cutting instrument (16) is tapered at one end and broader at other end. In still another embodiment of the present invention, a length of the first wedge (18) is less than an inner length of the upper jaw (10). In one more embodiment of the present invention, the cutting instrument (12) is constructed such that the front cutting edge (14) is parallel to the inner surface (20) of the upper jaw. In one another embodiment of the present invention, the length of the cutting instrument (12) is equal to or less than the inner length of upper jaw (10). In a further embodiment of the present invention, the tapering on the first wedge (18) is equal and opposite of the tapering on the cutting instrument (12). In a further more embodiment of the present invention, the first means (24) is attached to the first wedge (18) and the first wedge is movable longitudinally in to-and-fro direction inside the hollow upper jaw by actuation of said first means (24). In an embodiment of the present invention, the first means (24) is a screw. 4 In another embodiment of the present invention, a head portion (46) of the screw is projecting outside the hollow upper jaw (10) and a tail portion (48) is inside the hollow upper jaw (10). In yet another embodiment of the present invention, the upper jaw (10) is provided with a hole (50) in order to accommodate the screw (24). In still another embodiment of the present invention, the cutting mechanism (12) is held parallel to the supporting means (30) using plurality of first holding means (26). In one more embodiment of the present invention, the first holding means (26) is a screw. In one another embodiment of the present invention, one end (52) of the first holding means (26) is in contact with an outer surface of the upper jaw (10) and the other end (54) is in contact with the cutting instrument (12). In a further embodiment of the present invention, the upper jaw (10) and the cutting mechanism (12) are provided with plurality of holes (56, 58, 60 and 62) to accommodate the plurality of first holding means (26). In a further more embodiment of the present invention, the supporting means (30) is an anvil. In an embodiment of the present invention, the second wedge (36) is constructed such that the face (40) which is in contact with the supporting means (30) is tapered at one end and broader at the other end. In another embodiment of the present invention, a length of the second wedge (36) is less than an inner length of the lower jaw (28). In yet another embodiment of the present invention, the supporting means (30) is constructed such that the supporting face (32) is parallel to the inner surface of the lower jaw (28). 5 In still another embodiment of the present invention, the length of the supporting means (30) is equal to or less than the inner length of lower jaw. In one more embodiment of the present invention, the tapering on the second wedge (36) is equal and opposite of the tapering on the supporting means (30). In one another embodiment of the present invention, the second means (42) is attached to the second wedge (36) and the second wedge is movable longitudinally in to-and-fro direction inside the hollow lower jaw (28) by actuation of said second means (42). In a further embodiment of the present invention, the second means (42) is a screw. In a further more embodiment of the present invention, the screw (24, 42) is a fine pitched screw. In an embodiment of the present invention, a head portion (64) of the screw (42) is projecting outside the hollow lower jaw (28) and a tail portion (66) thereof is inside the hollow lower jaw. In another embodiment of the present invention, the lower jaw (28) is provided with a hole (68) to accommodate the screw (42). In yet another embodiment of the present invention, the supporting means (30) is held parallel to the cutting means (12) using plurality of second holding means (44). In still another embodiment of the present invention, the second holding means (44) is a screw. In one more embodiment of the present invention, one end (70) of the second holding means (44) is in contact with an outer surface of the lower jaw (28) and the other end (72) is in contact with the supporting means (30). In a further embodiment of the present invention, the lower jaw (28) and the supporting means (30) are provided with plurality of holes (74, 76, 78 and 80) to accommodate the plurality of second holding means (44). 6 BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS: In the drawings accompanying the specification, Figure 1 represents the system of the prior art system. Figure 2 represents the system of the present invention. The invention is further described here below with respect to the working of the system, which is given by way of illustration and therefore, should not be construed to limit the scope of the invention in any manner. WORKING OF THE SYSTEM: The knife is located in the upper jaw which is adjusted parallel to anvil with newly developed device which consists of a taper wedge, a screw having fine pitch threads and end plates. The wedge with screw and one side end plate is first placed in the slot of the upper jaw and then the knife is placed on it. The wedge is designed having a particular taper face on one side. The knife is also made having equal amount of taper ratio to match with the taper face of wedge. The wedge is longitudinally moved along the length with the help of screw which makes the knife move upward or downward. To take the knife upward, the wedge is moved backward and to take the knife downward, the wedge is moved forward. The wedge is finally set such that the knife comes in close contact with anvil of lower jaw and parallel to it. The lock nut given on the screw is finally tightened and locked after the knife is accurately set and fine-tuned. The concept of the taper wedge developed by us does the following functions. (1) Because of equal ratio of taper both on the knife and wedge, sliding of the wedge in horizontal direction causes vertical movement of knife with high accuracy of equal movement through out the length of knife. (2) Because of having designed the screw with fine pitch threads, a perceptible movement of screw moving the wedge will give fine vertical movement of the knife that may be required for final setting. This will allow the operator to set the knife with lower skill. 7 (3) The anvil is located in the lower jaw above the taper wedge and is adjusted with respect to profile of jaw. The anvil is set by the same principle giving vertical movement to it by sliding the taper wedge horizontally. ADVANTAGES OF THE PRESENT INVENTION: 1. Very simple mechanism. 2. Introduction of concept of taper wedge has given excellent results. 3. Highly accurate setting possible without any significant fine-tuning. 4. If at all any fine setting is required, it can be easily achieved just by a perceptible movement of screw. 5. Time that is required for setting the knife is very low. 6. Operator does not require high skill for setting. 8 WE CLAIM: A device for cutting seal of a pack, said device comprising: (a) a hollow upper jaw (110) housing a cutting instrument (12) having a front cutting edge (14) and a tapered rear supporting face (16); (b) a first wedge (18) placed between an upper inner surface (20) of the upper jaw (10) and the rear supporting face (16) of the cutting instrument (12), said first wedge having tapering at a face (22) which is in contact with the rear face (16) of the cutting instrument (12); (c) a first means (24) for adjusting the longitudinal moment of the first wedge (18); (d) plurality of first holding means (26) to hold the cutting instrument (12) inside the hollow upper jaw (10); (e) a hollow lower jaw (28), placed below the upper jaw (10) and housing a supporting means (30) having a front supporting edge (32) and a tapered rear face (34); (f) a second wedge (36) placed between a lower inner surface (38) of the lower jaw (28) and the rear face (34) of the supporting means (30), said second wedge- (36) having tapering at a face (40) which is in contact with the rear face (34) of the supporting means (30); (g) a second means (42) for adjusting the longitudinal moment of the second wedge (30), and (h) plurality of second holding means (44) to hold the supporting means (30) inside the hollow lower jaw (28). 2. A device as claimed in claim 1, wherein the cutting instrument (12) is a knife. 3. A device as claimed in claim 1, wherein the cutting edge (14) of the cutting instrument (12) is projecting outside the hollow upper jaw (10). 4. A device as claimed in claim 1, wherein the first wedge (18) is constructed such that the face (22) which is in contact with the cutting instrument (16) is tapered at one end and broader at other end. 9 A device as claimed in claim 1, wherein a length of the first wedge (18) is less than an inner length of the upper jaw (10). A device as claimed in claim 1, wherein the cutting instrument (12) is constructed such that the front cutting edge (14) is parallel to the inner surface (20) of the upper jaw. A device as claimed in claim 1, wherein the length of the cutting instrument (12) is equal to or less than the inner length of upper jaw (10). A device as claimed in claim 1, wherein the tapering on the first wedge (18) is equal and opposite of the tapering on the cutting instrument (12). A device as claimed in claim 1, the first means (24) is attached to the first wedge (18) and the first wedge is movable longitudinally in to-and-fro direction inside the hollow upper jaw by actuation of said first means (24). A device as claimed in claim 1, wherein the first means (24) is a screw. A device as claimed in claim 10, wherein a head portion (46) of the screw is projecting outside the hollow upper jaw (10) and a tail portion (48) is inside the hollow upper jaw (10). A device as claimed in claim 11, wherein the upper jaw (10) is provided with a hole (50) in order to accommodate the screw (24). A device as claimed in claim 1, wherein the cutting mechanism (12) is held parallel to the supporting means (30) using plurality of first holding means (26). A device as claimed in claim 1, wherein the first holding means (26) is a screw. A device as claimed in claim 1, wherein one end (52) of the first holding means (26) is in contact with an outer surface of the upper jaw (10) and the other end (54) is in contact with the cutting instrument (12). 10 16. A device as claimed in claim 1, wherein the upper jaw (10) and the cutting mechanism (12) are provided with plurality of holes (56, 58, 60 and 62) to accommodate the plurality of first holding means (26). 17. A device as claimed in claim 1, wherein the supporting means (30) is an anvil. 18. A device as claimed in claim 1, wherein the second wedge (36) is constructed such that the face (40) which is in contact with the supporting means (30) is tapered at one end and broader at the other end. 19. A device as claimed in claim 1, wherein a length of the second wedge (36) is less than an inner length of the lower jaw (28). 20. A device as claimed in claim 1, wherein the supporting means (30) is constructed such that the supporting face (32) is parallel to the inner surface of the lower jaw (28). 21. A device as claimed in claim 1, wherein the length of the supporting means (30) is equal to or less than the inner length of lower jaw. 22. A device as claimed in claim 1, wherein the tapering on the second wedge (36) is equal and opposite of the tapering on the supporting means (30). 23. A device as claimed in claim 1, wherein the second means (42) is attached to the second wedge (36) and the second wedge is movable longitudinally in to-and-fro direction inside the hollow lower jaw (28) by actuation of said second means (42). 24. A device as claimed in claim 1, wherein the second means (42) is a screw. 25. A device as claimed in any of claims 10 and 24, wherein the screw (24, 42) is a fine pitched screw. 11 26. A device as claimed in claim 24, wherein a head portion (64) of the screw (42) is projecting outside the hollow lower jaw (28) and a tail portion (66) thereof is inside the hollow lower jaw. 27. A device as claimed in claim 26, wherein the lower jaw (28) is provided with a hole (68) to accommodate the screw (42). 28. A device as claimed in claim 1, wherein the supporting means (30) is held parallel to the cutting means (12) using plurality of second holding means (44). 29. A device as claimed in claim 1, wherein the second holding means (44) is a screw. 30. A device as claimed in claim 1, one end (70) of the second holding means (44) is in contact with an outer surface of the lower jaw (28) and the other end (72) is in contact with the supporting means (30). 31. A device as claimed in claim 1, wherein the lower jaw (28) and the supporting means (30) are provided with plurality of holes (74, 76, 78 and 80) to accommodate the plurality of second holding means (44). 32. A device for cutting seal of a pack substantially as herein described with reference to the accompanying drawings. Dated this 18th day of February, 2002.

Documents:

148-mum-2002-abstract(05-10-2007).doc

148-mum-2002-abstract(05-10-2007).pdf

148-mum-2002-cancelled pages(05-10-2007).pdf

148-mum-2002-claims(granted)-(05-10-2007).doc

148-mum-2002-claims(granted)-(05-10-2007).pdf

148-mum-2002-correspondence-(ipo)-(10-10-2007).pdf

148-mum-2002-correspondence-1-(17-10-2007).pdf

148-mum-2002-correspondence-2-(19-10-2005).pdf

148-mum-2002-drawing(05-10-2007).pdf

148-mum-2002-form 1(05-10-2007).pdf

148-mum-2002-form 1(18-02-2002).pdf

148-mum-2002-form 13(17-01-2006).pdf

148-mum-2002-form 18(17-01-2006).pdf

148-mum-2002-form 2(granted)-(05-10-2007).doc

148-mum-2002-form 2(granted)-(05-10-2007).pdf

148-mum-2002-form 26(14-02-2002).pdf

148-mum-2002-form 26(17-01-2006).pdf

148-mum-2002-form 3(18-02-2002).pdf

148-mum-2002-form 5(18-02-2002).pdf

148-mum-2002-petition under rule 138(05-10-2007).pdf

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