Title of Invention	A STORAGE CONTAINER FOR LIQUIDS AND A METHOD FOR PRODUCING THE OUTER CONTAINER FOR A STORAGE CONTAINER FOR LIQUIDS
Abstract	The main components of the storage container (1) for liquids are a blow-moulded plastic inner container (2) which has four side walls (3-6), a base (7) and a curved top (8) with various connecting branches (9-12), furthermore a blow-moulded plastic outer container (13) which accommodates the inner container (2) , is formed by four side walls (14-17), a base (18) and a removable, curved plastic cover (19) having corresponding through holes (20) for the connections (9-12) of the inner container (2) and serves to prevent the inner container from leaking, an outer lattice-type casing (21) of metal lattice bars (22, 23) , and a pallet-like metal underframe (24) to place the storage container (1) on and to transport it by means of a stacker truck or similar transporting appliances. (Fig. 2)

Title of Invention

A STORAGE CONTAINER FOR LIQUIDS AND A METHOD FOR PRODUCING THE OUTER CONTAINER FOR A STORAGE CONTAINER FOR LIQUIDS

Abstract

The main components of the storage container (1) for liquids are a blow-moulded plastic inner container (2) which has four side walls (3-6), a base (7) and a curved top (8) with various connecting branches (9-12), furthermore a blow-moulded plastic outer container (13) which accommodates the inner container (2) , is formed by four side walls (14-17), a base (18) and a removable, curved plastic cover (19) having corresponding through holes (20) for the connections (9-12) of the inner container (2) and serves to prevent the inner container from leaking, an outer lattice-type casing (21) of metal lattice bars (22, 23) , and a pallet-like metal underframe (24) to place the storage container (1) on and to transport it by means of a stacker truck or similar transporting appliances. (Fig. 2)

Full Text	Description Title: Storage container for liquids and method for producing the outer container of the storage container The invention relates to a storage container for liquids/ in particular combustible liquids, such as heating oil, used oil, lubricating oil and diesel fuel, having a plastic inner container, which can be filled with the liquid, which is in the shape of a rectangular parallelepiped or cube and has four side walls, a base and a top with a filling connection, a removal connection, a vent connection and a connection for inserting a filling-level indicator, the storage container furthermore having an outer container which accommodates the inner container and is intended to prevent the inner container from leaking, and having a pallet-like underframe to place the storage container on and to transport it by means of a stacker truck or similar transporting means. Storage containers of this type that are described in DE 100 65 077 CI and are intended for heating oil are equipped with an outer container which serves to prevent the inner container from leaking and is welded together from a casing plate and two bottom plates. The production of an outer container of this type which is welded together from plates is relatively expensive. The invention is based on the object of developing the design of the outer container of the storage container of the generic type in respect of producing the storage container at favourable cost. This object is achieved according to the invention by a storage container having the features of Patent Claim 1 and by the method for producing the outer container according to Patent Claim 7, The subclaims contain advantageous and expedient developments of the invention, The plastic construction of the outer container of the storage container according to the invention makes it possible to produce the outer container, which is equipped with a removable plastic cover, simply and at reasonable cost. The invention is explained below with reference to the figures of the drawings, in which: Fig. 1 shows a perspective illustration of a storage container. Fig. 2 shows an exploded illustration of the storage container according to Fig. 1, Fig. 3 shows part of an enlarged longitudinal sectional illustration of the top of the inner container and of the upper edge region and of the cover of the outer container and of the lower base regions of the inner container and of the outer container together with the underframe of the storage container, and Fig. 4 shows part of an enlarged longitudinal seccional illustration of the top region of the blow-moulded outer container body. The main components of the storage container 1 for liquids, in particular combustible liquids, such as heating oil, used oil, lubricating oil and diesel fuel, are a blow-moulded plastic inner container 2 which is in the shape of a rectangular parallelepiped and has four side walls 3-6, a base 7 and a curved top 8 with a filling connection 9, a removal connection 10, a vent connection 11 and a connection 12 for the insertion of a filling-level indicator, furthermore a blow-moulded plastic outer container 13 which accommodates the inner container 2, is formed by four side walls 14-17, a base 18 and a removable, curved plastic cover 19 having corresponding through holes 20 for the filling connection 9, the removal connection 10, the vent connection 11 and the connection 12 for the filling-level indicator of the inner container 2 and serves to prevent the inner container from leaking, an outer lattice-type casing 21 of vertical and horizontal metal lattice bars 22, 23, and a pal let-like metal underframe 24 to place the storage container 1 on and to transport it by means of a stacker truck or similar transporting appliances. The underframe 24 of the storage container 1 is provided with a sheet-metal base 25 on which the inner container 2 and the outer container 13 stand. The sheet-metal base 25 of the underframe 24 is fastened together with the lower frame 2 6 of the lattice-type casing 21 on corner and middle feet 27, 28 which are fitted on a base frame 29. The rectangular cover 19 of the outer container 13 which is curved in a manner corresponding to the curved top 8 of the inner container 2 has a cover edge 31, which surrounds the upper opening edge 30 of the outer container, is drawn downwards and has hook-shaped clamping elements 33 which are integrally formed in the corner regions 32 and are intended for fastening the cover 19 onto the opening edge 30 of the outer container 13, the said opening edge 30 having corresponding securing means 35 in the corner regions 34. The cover 19 of the outer container 13 is provided with an encircling, flat edge strip 36 on which to place the base frame 29 of the underframe 2 4 of a storage container 1 stacked on top, and a flat spill trough 38 for leaked liquid dripping out of screwed connecting joints and fittings is formed in the central section 37 of the cover 19. The cover 19 is secured on the outer container 13 by two closure straps 39 which rest on it, consist of a flat steel bar material and are screwed to two opposite frame parts 41, 42 of the upper frame 4 0 of the lattice-type casing 21. In addition, the cover 19 is also secured by the closure caps 43 which are screwed onto the connections 9-12 of the inner container 2. Sliding edges 44 for the gripping arms of a transporting appliance to slide on when lifting off a storage container 1 stacked on top are integrally formed on the cover 19 of the outer container 13 along the closure straps 39. A vertical channel 4 5 which merges into an arch 4 6 in the base 7 of the inner container is formed in the front side wall 3 of the inner container 2. The vertical channel 4 5 and arch 4 6 of the inner container 2 form a passage 47 between said inner container and the outer container 13 for accommodating a leakage probe 48 or a hose for sucking off leaked liquid. To retrofit the storage container 1 with a leakage probe 48, a small centring point 49 is situated in the edge strip 36 of the cover 19 of the outer container 13 above the passage 4 7 for the purpose of making a passage hole 50 for the leakage probe 48 or for a suction hose. The outer container body 51 is blow-moulded with the four side walls 14-17, the base 18 and the curved top 52 having the offset, flat, horizontal or slightly outwardly inclined edge strip 36 from an extruded plastic tubing, the edge strip 36 merging via the frame-like edge 31 having four edge sections 53, running parallel to the side walls 14-17 of the outer container body 51 and via four inwardly curved, narrow connecting sections 54 into four upper, inwardly offset edge sections 55 of the four side walls 14-17 of the outer container body 13, and the frame-like edge 31 of the top 52 protruding outwards by a small extent a over the upper edge sections 55 of the four side walls 14-17 of the outer container body 51 (Fig. 4) . After the blow-moulded outer container body 51 has cooled, the top 52, which forms the cover 19 of the outer container 13, is severed from the closed outer container body 51 by cutting out the connecting sections 54. Patent Claims 1. Storage container for liquids, in particular combustible liquids, such as heating oil, used oil, lubricating oil and diesel fuel, having a plastic inner container, which can be filled with the liquid, which is in the shape of a rectangular parallelepiped or cube and has four side walls, a base and a top with a filling connection, a removal connection, a vent connection and a connection for inserting the filling-level indicator, the storage container furthermore having an outer container which accommodates the inner container and is intended to prevent the inner container from leaking, and having a pallet^like underframe to place the storage container on and to transport it by means of a stacker truck or similar transporting means, characterized by a blow-moulded plastic outer container (13) for accommodating the inner container (2) having four side walls (14-17) , a base (18) and a removable cover (19) , which has corresponding through holes (20) for the filling connection (9), the removal connection (10), the vent connection (11) and the connection (12) for the filling-level indicator of the inner container (2), and a cover edge (31), which surrounds the upper opening edge (30) of the outer container (13), is drawn downwards and has integrally formed clamping elements (33) for fastening the cover (19) on the opening edge (30) of the outer container (13), the said opening edge being provided with corresponding securing means (35), and an outer lattice-type casing (21) of vertical and horizontal metal lattice bars (22, 23), which is fastened to the metal underframe (24). 2. Storage container according to Claim 1, characterized by a vertical channel (45) which is formed in a side wall (3) of the inner container (2) and is intended for forming a passage (47) between the inner and outer containers (2, 13), for accommodating a leakage probe (48) or a hose for sucking off leaked liquid. 3- Storage container according to Claims 1 and 2, characterized in that the upwardly curved cover (19) of the outer container (13) has an encircling, flat edge strip (36) on which to place the base frame (29) of the underframe (24) of a storage container (1) stacked on top- 4. Storage container according to Claim 3, characterized by a flat spill trough (38) which is formed in the central section (37) of the cover (19) of the outer container (13) and is intended for leaked liquid dripping out of screwed connecting joints and fittings. 5. Storage container according to Claims 3 and 4, characterized by one or more closure straps (39) which consist of a flat steel bar material, rest on the curved cover (19) of the outer container (13) and are fastened, in particular screwed, to two opposite frame parts (41, 42) of the upper frame (40) of the lattice-type casing (21). 6. Storage container according to Claim 5, characterized by sliding edges (44) which are integrally formed on the cover (1) [sic] of the outer container (13), run along the closure straps (39) and are intended for the gripping arms of a transporting appliance to slide on when lifting off a storage container (1) stacked on top. 7. Method for producing the outer container for a storage container for liquids according to Patent Claims 1 to 6, characterized by the blow-moulding of the outer container body (51) with four side walls (14-17), a base (18) and a curved top (52) having an offset, flat, horizontal or slightly outwardly inclined edge strip (36) which merges via a frame-like edge (31) having four edge sections (53) running parallel to the side walls (14-17) of the outer container body (51) and via four inwardly curved, narrow connecting sections (54) into four upper, inwardly offset edge sections (55) of the four side walls (14-17) of the outer container body (51) , the frame-like edge (31) of the top (52) protruding outwards by a small extent (a) over the upper edge sections (55) of the four side walls (14-17) of the outer container body (51), and also characterized by the top (52), which forms the cover (19) of the outer container (13), being severed from the closed, blow-moulded outer container body (51), after the latter has cooled, by cutting out the connecting sections (54) . A storage container substantially as herein described with reference to the accompanying drawings. A method for producing the outer container substantially as herein described with reference to the accompanying drawings.

Full Text

Description
Title: Storage container for liquids and method for producing the outer container of the storage container
The invention relates to a storage container for liquids/ in particular combustible liquids, such as heating oil, used oil, lubricating oil and diesel fuel, having a plastic inner container, which can be filled with the liquid, which is in the shape of a rectangular parallelepiped or cube and has four side walls, a base and a top with a filling connection, a removal connection, a vent connection and a connection for inserting a filling-level indicator, the storage container furthermore having an outer container which accommodates the inner container and is intended to prevent the inner container from leaking, and having a pallet-like underframe to place the storage container on and to transport it by means of a stacker truck or similar transporting means.
Storage containers of this type that are described in DE 100 65 077 CI and are intended for heating oil are equipped with an outer container which serves to prevent the inner container from leaking and is welded together from a casing plate and two bottom plates. The production of an outer container of this type which is welded together from plates is relatively expensive.
The invention is based on the object of developing the design of the outer container of the storage container of the generic type in respect of producing the storage container at favourable cost.
This object is achieved according to the invention by a storage container having the features of Patent Claim 1

and by the method for producing the outer container according to Patent Claim 7,
The subclaims contain advantageous and expedient developments of the invention,
The plastic construction of the outer container of the storage container according to the invention makes it possible to produce the outer container, which is equipped with a removable plastic cover, simply and at reasonable cost.
The invention is explained below with reference to the figures of the drawings, in which:
Fig. 1 shows a perspective illustration of a
storage container.
Fig. 2 shows an exploded illustration of the
storage container according to Fig. 1,
Fig. 3 shows part of an enlarged longitudinal
sectional illustration of the top of the inner container and of the upper edge region and of the cover of the outer container and of the lower base regions of the inner container and of the outer container together with the underframe of the storage container, and
Fig. 4 shows part of an enlarged longitudinal
seccional illustration of the top region of the blow-moulded outer container body.
The main components of the storage container 1 for liquids, in particular combustible liquids, such as heating oil, used oil, lubricating oil and diesel fuel, are a blow-moulded plastic inner container 2 which is in the shape of a rectangular parallelepiped and has four side walls 3-6, a base 7 and a curved top 8 with a filling connection 9, a removal connection 10, a vent

connection 11 and a connection 12 for the insertion of a filling-level indicator, furthermore a blow-moulded plastic outer container 13 which accommodates the inner container 2, is formed by four side walls 14-17, a base 18 and a removable, curved plastic cover 19 having corresponding through holes 20 for the filling connection 9, the removal connection 10, the vent connection 11 and the connection 12 for the filling-level indicator of the inner container 2 and serves to prevent the inner container from leaking, an outer lattice-type casing 21 of vertical and horizontal metal lattice bars 22, 23, and a pal let-like metal underframe 24 to place the storage container 1 on and to transport it by means of a stacker truck or similar transporting appliances.
The underframe 24 of the storage container 1 is provided with a sheet-metal base 25 on which the inner container 2 and the outer container 13 stand. The sheet-metal base 25 of the underframe 24 is fastened together with the lower frame 2 6 of the lattice-type casing 21 on corner and middle feet 27, 28 which are fitted on a base frame 29.
The rectangular cover 19 of the outer container 13 which is curved in a manner corresponding to the curved top 8 of the inner container 2 has a cover edge 31, which surrounds the upper opening edge 30 of the outer container, is drawn downwards and has hook-shaped clamping elements 33 which are integrally formed in the corner regions 32 and are intended for fastening the cover 19 onto the opening edge 30 of the outer container 13, the said opening edge 30 having corresponding securing means 35 in the corner regions 34. The cover 19 of the outer container 13 is provided with an encircling, flat edge strip 36 on which to place the base frame 29 of the underframe 2 4 of a storage container 1 stacked on top, and a flat spill trough 38 for leaked liquid dripping out of screwed

connecting joints and fittings is formed in the central section 37 of the cover 19.
The cover 19 is secured on the outer container 13 by two closure straps 39 which rest on it, consist of a flat steel bar material and are screwed to two opposite frame parts 41, 42 of the upper frame 4 0 of the lattice-type casing 21. In addition, the cover 19 is also secured by the closure caps 43 which are screwed onto the connections 9-12 of the inner container 2.
Sliding edges 44 for the gripping arms of a transporting appliance to slide on when lifting off a storage container 1 stacked on top are integrally formed on the cover 19 of the outer container 13 along the closure straps 39.
A vertical channel 4 5 which merges into an arch 4 6 in the base 7 of the inner container is formed in the front side wall 3 of the inner container 2. The vertical channel 4 5 and arch 4 6 of the inner container 2 form a passage 47 between said inner container and the outer container 13 for accommodating a leakage probe 48 or a hose for sucking off leaked liquid. To retrofit the storage container 1 with a leakage probe 48, a small centring point 49 is situated in the edge strip 36 of the cover 19 of the outer container 13 above the passage 4 7 for the purpose of making a passage hole 50 for the leakage probe 48 or for a suction hose.
The outer container body 51 is blow-moulded with the four side walls 14-17, the base 18 and the curved top 52 having the offset, flat, horizontal or slightly outwardly inclined edge strip 36 from an extruded plastic tubing, the edge strip 36 merging via the frame-like edge 31 having four edge sections 53, running parallel to the side walls 14-17 of the outer container body 51 and via four inwardly curved, narrow

connecting sections 54 into four upper, inwardly offset edge sections 55 of the four side walls 14-17 of the outer container body 13, and the frame-like edge 31 of the top 52 protruding outwards by a small extent a over the upper edge sections 55 of the four side walls 14-17 of the outer container body 51 (Fig. 4) . After the blow-moulded outer container body 51 has cooled, the top 52, which forms the cover 19 of the outer container 13, is severed from the closed outer container body 51 by cutting out the connecting sections 54.

Patent Claims
1. Storage container for liquids, in particular
combustible liquids, such as heating oil, used oil,
lubricating oil and diesel fuel, having a plastic inner
container, which can be filled with the liquid, which
is in the shape of a rectangular parallelepiped or cube
and has four side walls, a base and a top with a
filling connection, a removal connection, a vent
connection and a connection for inserting the
filling-level indicator, the storage container
furthermore having an outer container which
accommodates the inner container and is intended to
prevent the inner container from leaking, and having a
pallet^like underframe to place the storage container
on and to transport it by means of a stacker truck or
similar transporting means, characterized by a
blow-moulded plastic outer container (13) for
accommodating the inner container (2) having four side
walls (14-17) , a base (18) and a removable cover (19) ,
which has corresponding through holes (20) for the
filling connection (9), the removal connection (10),
the vent connection (11) and the connection (12) for
the filling-level indicator of the inner container (2),
and a cover edge (31), which surrounds the upper
opening edge (30) of the outer container (13), is drawn
downwards and has integrally formed clamping elements
(33) for fastening the cover (19) on the opening edge
(30) of the outer container (13), the said opening edge
being provided with corresponding securing means (35), and an outer lattice-type casing (21) of vertical and horizontal metal lattice bars (22, 23), which is fastened to the metal underframe (24).
2. Storage container according to Claim 1,
characterized by a vertical channel (45) which is
formed in a side wall (3) of the inner container (2)

and is intended for forming a passage (47) between the inner and outer containers (2, 13), for accommodating a leakage probe (48) or a hose for sucking off leaked liquid.
3- Storage container according to Claims 1 and 2, characterized in that the upwardly curved cover (19) of the outer container (13) has an encircling, flat edge strip (36) on which to place the base frame (29) of the underframe (24) of a storage container (1) stacked on top-
4. Storage container according to Claim 3, characterized by a flat spill trough (38) which is formed in the central section (37) of the cover (19) of the outer container (13) and is intended for leaked liquid dripping out of screwed connecting joints and fittings.
5. Storage container according to Claims 3 and 4, characterized by one or more closure straps (39) which consist of a flat steel bar material, rest on the curved cover (19) of the outer container (13) and are fastened, in particular screwed, to two opposite frame parts (41, 42) of the upper frame (40) of the lattice-type casing (21).
6. Storage container according to Claim 5, characterized by sliding edges (44) which are integrally formed on the cover (1) [sic] of the outer container (13), run along the closure straps (39) and are intended for the gripping arms of a transporting appliance to slide on when lifting off a storage container (1) stacked on top.
7. Method for producing the outer container for a storage container for liquids according to Patent Claims 1 to 6, characterized by the blow-moulding of the outer container body (51) with four side walls

(14-17), a base (18) and a curved top (52) having an offset, flat, horizontal or slightly outwardly inclined edge strip (36) which merges via a frame-like edge (31) having four edge sections (53) running parallel to the side walls (14-17) of the outer container body (51) and via four inwardly curved, narrow connecting sections
(54) into four upper, inwardly offset edge sections
(55) of the four side walls (14-17) of the outer container body (51) , the frame-like edge (31) of the top (52) protruding outwards by a small extent (a) over the upper edge sections (55) of the four side walls (14-17) of the outer container body (51), and also characterized by the top (52), which forms the cover (19) of the outer container (13), being severed from the closed, blow-moulded outer container body (51), after the latter has cooled, by cutting out the connecting sections (54) .

A storage container substantially as herein described with reference to the accompanying drawings.
A method for producing the outer container substantially as herein described with reference to the accompanying drawings.

Documents:

926-che-2003-abstract.pdf

926-che-2003-claims duplicate.pdf

926-che-2003-claims original.pdf

926-che-2003-correspondence others.pdf

926-che-2003-correspondence po.pdf

926-che-2003-description complete duplicate.pdf

926-che-2003-description complete original.pdf

926-che-2003-drawings.pdf

926-che-2003-form 1.pdf

926-che-2003-form 19.pdf

926-che-2003-form 26.pdf

926-che-2003-form 3.pdf

926-che-2003-form 5.pdf

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Patent Number

196302

Indian Patent Application Number

926/CHE/2003

PG Journal Number

20/2006

Publication Date

19-May-2006

Grant Date

14-Oct-2005

Date of Filing

12-Nov-2003

Name of Patentee

SCHUTZ GMBH & CO. KGAA

Applicant Address

D-56242 SELTERS, WESTERWALD, GERMANY.

Inventors:

#	Inventor's Name	Inventor's Address
1	UDO SCHUTZ	SCHUTZSTRASSE 12, D-56242 SELTERS/WESTERWALD, GERMANY.

PCT International Classification Number

B65D19/02

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	102 52 745.8	2002-11-13	Germany