Title of Invention

"A CENTRIPITAL STIRRER"

Abstract A CENTRIPETAL STIRRER without any blades attachment is consisting with single hollow pipe (1) which connects with shaft(5) of motor(4) wherein the hollow pipe (1) is cut with slit line (2) in spiral way from upper side to lower side of the hollow pipe (1).
Full Text Form 2
The Patent Act, 1970
(39 of 1970)
COMPLETE SPECIFICATION
(See section 10; rule 13)


1. A CENTRIPETAL STIRRER
2. (a)BHATT RAJEN JAYENDRA

(b) having office at Plot no. 321/8, 40 shed Area GIDC, VAPI- 3961 95.
(c) Nationality: Indian

The following specification particularly describes the nature of this invention and the manner in which it is to be performed.




The present invention relates to A CENTRIPETAL STIRRER
Stirrer device is useful particularly in pharmaceutical, food and chemical industries for mixing, dissolving, kneading and diffusing a liquid or other material in a container.
Industrial stirrers are commonly available as anchor type and peddle type. The conventional paddle type stirrer has a horizontal blade or vertical upwardly sloping surface at the point where it connects to the rotatable shaft, the paddle or anchor is often submerged in the liquid product during mixing because the conventional paddle or anchor is fully in contact with the liquid product, so additional time and energy is required to bring it to a homogeneous consistency. Stirrer consists blades around its axial shaft. When the blades of anchor type and paddle type stirrers revolve in the mixture, the mixture resists the movement of the blades so, the stirrer requires more power to rotate the blades in the mixture of the container. When the motor is started to revolve the stirrer in the beginning sometime the stirrer require more power to rotate the blades in the rnixture because when the stirrer is not in use for a long time the mixture is freeze or stationary in the container. By that reason sometime the blades are broken or band. Anchor type or paddle type stirrer requires more materials to


fabricate them. The other limitation of anchor type or paddle type stirrer is that it requires gearbox system to work at reduced rpm (revolution per minute). The gearbox system consists with coupling, pulley and belts. The construction of gearbox system is very complex. The gearbox system reduces the efficiency of stirrer because gearbox system consumes some power. When stirrer works at low rpm(revolution per minute) it reduce the power and take more time to complete reaction. These limitations are overcome by the present invention of the centripetal stirrer. It has unique design such that blades are not attached on the said stirrer. However it delivers same types of mixing creating desired partial speed in horizontal and vertical direction. Also it created similar vertex at the center as in case on anchor type.
The present invention is described with great specific and clarity with reference to following drawings:
Fig. 1 represent the front view of the centripetal stirrer. Fig.2 represent me top view of the centripetal stirrer.
Fig. 3 represent the front view of the whole arrangement wherein the centripetal stirrer is connected with motor shaft.


The centripetal stirrer consists with single hollow pipe (1), which connects with motor shaft (5). The blades are not attached with centripetal stirrer so, when the motor is started to rotate the stirrer in clockwise direction the mixture resists the stirrer very less. By that reason the centripetal stirrer is works at very low power. The centripetal stirrer does not require any blades so, it requires less raw material to fabricate them. Front view of single hollow pipe (1) is shown in Fig.l where the hollow pipe is spiral way cut continues to make seamless line (Slit) (2) from upper side to lower side of the single hollow pipe (1). The size of the slit line (2), length of the hollow pipe (1) and diameter of the hollow pipe (1) depending upon the material density, viscosity, the percentage of solid contains, volume of the container and particle size. The hollow pipe (1) is fabricated from any material i.e. MS (MILD STEEL), SS (STAINLES STEEL), rubber, glass etc. as per requirement e.g. if the viscous material is filled in the container (3) the thickness of he seamless line (2) and thickness of the hollow pipe (1) increases. The top view of the centripetal stirrer is shown in Fig.2. The whole arrangement of the centripetal stirrer is shown in Fig.3 wherein the hollow pipe (1) is connected with motor shaft (5). To connect the upper side of hollow pipe (1) and motor shaft (5) are drilled. Then the hollow pipe (1) and motor shaft (5) is jointed with the help of nut-bolt. When reducer rpm (revolution per minute) requires the motor can be connected with AC or DC drive regular to control the


rpm. When the motor starts the hollow pipe (1) is rotated around the imaginary centerline so, some centrifugal force exits on the outer surface of the pipe (1) which is tries to throw the material away from the surface towards the wall side of the container (3) but, the angle of the slit line (2) generate stream of liquid slurry or gas inside the hollow pipe so the material is sucked toward the center because when water touches round pipe (1) surface tangentiaUy, it glides along the periphery of the wall of the hollow pipe (1), with very less friction. The centripetal stirrer works at different condition of temperatures, pressure and different kind of stress etc.. This stirrer consumes less power by 40% to 50%.


We Claim:
1. A CENTRIPETAL STIRRER without any blades attachment is consisting with single hollow pipe (1) which connects with shaft(5) of motor(4) wherein the hollow pipe (1) is cut with slit line (2) in spiral way from upper side to lower side of the hollow pipe (1).
2. A CENTRIPETAL STIRRER substantially herein described with reference to the foregoing description and the accompanying drawings.


Documents:

465-mum-2004-cancelled pages(16-4-2004).pdf

465-mum-2004-claims(granted)-(16-4-2004).doc

465-mum-2004-claims(granted)-(16-4-2004).pdf

465-mum-2004-correspondence(16-11-2006).pdf

465-mum-2004-correspondence(ipo)-(30-9-2004).pdf

465-mum-2004-drawing(16-4-2004).pdf

465-mum-2004-form 1(16-4-2004).pdf

465-mum-2004-form 19(10-8-2004).pdf

465-mum-2004-form 2(granted)-(16-4-2004).doc

465-mum-2004-form 2(granted)-(16-4-2004).pdf

465-mum-2004-form 26(16-4-2006).pdf

465-mum-2004-form 3(16-4-2004).pdf

465-mum-2004-form 8(20-11-2006).pdf

abstract1.jpg


Patent Number 205760
Indian Patent Application Number 465/MUM/2004
PG Journal Number 26/2007
Publication Date 29-Jun-2007
Grant Date 09-Apr-2007
Date of Filing 16-Apr-2004
Name of Patentee BHATT RAJEN JAYENDRA
Applicant Address PLOT NO. 321/8, 40 SHED AREA, G.I.D.C., VAPI - 396195, GUJARAT, INDIA.
Inventors:
# Inventor's Name Inventor's Address
1 BHATT RAJEN JAYENDRA PLOT NO. 321/8, 40 SHED AREA, G.I.D.C., VAPI - 396195, GUJARAT, INDIA
PCT International Classification Number E21B 43/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA