US3603476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reconditionable containers
Assignee: Inland Steel Co
•
Filing: 1969-07-22
•
Granted: 1971-09-07
•
Expires: 1989-07-22
Abstract
Abstract An improved multitrip metallic shipping container which permits repetitive use of the metallic container components while at the same time permitting unimpeded access into the interior of the container and into the normally inaccessible chime portions thereof for cleaning, dedenting and related container reconditioning purposes, and to methods of assembly and disassembly thereof. The positioning of a resilient sealing means, such as a gasket, relative to the cylinder body and a drum head provides a construction with improved resistance to leakage and deformation.
Inventors
- 👤 Mattheus J M Coppens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:59
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/32; B65D2543/00; B65D2543/00009; B65D2543/00953; B65D2543/00962; B65D2543/00972
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
156 words
The method of forming a reusable, multitrip shipping container comprising the steps of forming a cylindrical drum body with an inverted U-shaped peripheral flange adjacent one end thereof, applying a drumhead having a complementally inverted Ushaped flange to said one end of the body to close the same in a liquidtight overlapping relation therewith, positioning a resilient sealing means between the downwardly extending extremities of said body and head inverted U-shaped peripheral flanges, positioning an annular reinforcing member within the inverted U-shaped drum body flange, placing a split metallic ring member surrounding the overlapping complementally inverted Ushaped peripheral flanges of the head and body, clamping said ring member against said peripheral flange of the head with a predetermined force to enclose the overlapping flanges, seal means and reinforcing member and welding portions adjacent the free ends of said split ring member together to form an integral ring while holding said closure member under said predetermined force.
Claim 2
Independent Claim
156 words
The method of forming a reusable, multitrip shipping container comprising the steps of forming a cylindrical drum body with an inverted U-shaped peripheral flange adjacent one end thereof, applying a drumhead having a complementally inverted Ushaped flange to said one end of the body to close the same in a liquidtight overlapping relation therewith, positioning a resilient sealing means between the downwardly extending extremities of said body and head inverted U-shaped peripheral flanges, positioning an annular reinforcing member within the inverted U-shaped drum body flange, placing a split metallic ring member surrounding the overlapping complementally inverted Ushaped peripheral flanges of the head and body, clamping said ring member against said peripheral flange of the head with a predetermined force to enclose the overlapping flanges, seal means and reinforcing member and welding portions adjacent the free ends of said split ring member together to form an integral ring while holding said closure member under said predetermined force.
Claim 3
Dependent Claim
24 words
The method of claim 1 wherein a substantially identical drumhead and closure arrangement is applied to the opposite end of the cylindrical drum body.
Claim 4
Dependent Claim
21 words
The method of claim 1 wherein the ends of the ring member are welded together by employing a separate bridging element.
Claim 5
Independent Claim
174 words
The method of disassembling and reassembling a multitrip shipping container of the type having at least one drumhead applied to a drum body in liquidtight relation therewith by complementally inverted U-shaped flanges and resilient sealing means interposed between the downwardly extending extremities of said head and body flanges and at least one metallic ring member surrounding the head flange peripherally and having a weld junction radially thereof so as to form a ring holding the drumhead to the body, comprising separating the weld junction of the ring into a split form to release the drumhead from the drum body separating the U-shaped flanges of the head and body members, reconditioning the disassembled container components, reapplying the drumhead to the drum body, reinserting the resilient sealing means between the flange extremities, reclamping the split metallic ring member against the peripheral outer extremity of the flange of the head with a predetermined force and rewelding the split ring member together to form a shipping container identical in all respects to the original said multitrip shipping container.
Claim 6
Independent Claim
174 words
The method of disassembling and reassembling a multitrip shipping container of the type having at least one drumhead applied to a drum body in liquidtight relation therewith by complementally inverted U-shaped flanges and resilient sealing means interposed between the downwardly extending extremities of said head and body flanges and at least one metallic ring member surrounding the head flange peripherally and having a weld junction radially thereof so as to form a ring holding the drumhead to the body, comprising separating the weld junction of the ring into a split form to release the drumhead from the drum body separating the U-shaped flanges of the head and body members, reconditioning the disassembled container components, reapplying the drumhead to the drum body, reinserting the resilient sealing means between the flange extremities, reclamping the split metallic ring member against the peripheral outer extremity of the flange of the head with a predetermined force and rewelding the split ring member together to form a shipping container identical in all respects to the original said multitrip shipping container.
Claim 7
Dependent Claim
136 words
A multitrip shipping container of the type which may be repeatedly used comprising, in combination, a cylindrical drum body having an inverted U-shaped peripheral flange adjacent one end thereof, at least one drumhead having a complementally inverted U-shaped peripheral flange for closing said one end of said body in a liquidtight overlapping relation therewith, a resilient annular sealing means interposed between the downwardly extending outer extremities of said inverted U-shaped flanges, a ring member surrounding the outer extremity of the flangE of said head and holding said head flange and said body flange in a liquidtight relation under a predetermined force said ring member having a weld junction radially thereof to form an integral ring permitting the disassembly of said head from said body by severence of the welded portion to facilitate reconditioning of said container.
Claim 8
Dependent Claim
136 words
A multitrip shipping container of the type which may be repeatedly used comprising, in combination, a cylindrical drum body having an inverted U-shaped peripheral flange adjacent one end thereof, at least one drumhead having a complementally inverted U-shaped peripheral flange for closing said one end of said body in a liquidtight overlapping relation therewith, a resilient annular sealing means interposed between the downwardly extending outer extremities of said inverted U-shaped flanges, a ring member surrounding the outer extremity of the flangE of said head and holding said head flange and said body flange in a liquidtight relation under a predetermined force said ring member having a weld junction radially thereof to form an integral ring permitting the disassembly of said head from said body by severence of the welded portion to facilitate reconditioning of said container.
Claim 9
Dependent Claim
22 words
The shipping container of claim 5 wherein the opposite end of said drum body is closed by a substantially identical closure arrangement.
Claim 10
Dependent Claim
29 words
The shipping container of claim 5 wherein a bridging element spans the split in the ring member and is welded to the ring member to form said integral ring.
Claim 11
Dependent Claim
28 words
The shipping container of claim 5 wherein the closure structure is formed with a reinforcing ring positioned within the inverted U-shaped portion of said drum body peripheral flange.
Claim 12
Dependent Claim
146 words
A multitrip shipping container of the type which may be repeatedly used comprising, in combination, a cylindrical drum body having a flange including an outwardly extending connecting member and a generally downwardly extending extremity, a reinforcing member having a shape complemental to said flange and positioned within said flange, at least one drumhead closing an end of said body and having a flange including an outwardly extending connecting portion and a downwardly extending extremity, the drumhead flange being dimensioned to maintain at least a part of said connecting portions of the respective flanges of said body and drumhead in face-to-face contact and to provide an annular space between the extremities, a resilient sealing means positioned in said space and an integrally joined ring member surrounding the drumhead flange, sealing means and reinforcing member and rigidly holding the drum head and the body in a liquidtight relation.
Claim 13
Dependent Claim
146 words
A multitrip shipping container of the type which may be repeatedly used comprising, in combination, a cylindrical drum body having a flange including an outwardly extending connecting member and a generally downwardly extending extremity, a reinforcing member having a shape complemental to said flange and positioned within said flange, at least one drumhead closing an end of said body and having a flange including an outwardly extending connecting portion and a downwardly extending extremity, the drumhead flange being dimensioned to maintain at least a part of said connecting portions of the respective flanges of said body and drumhead in face-to-face contact and to provide an annular space between the extremities, a resilient sealing means positioned in said space and an integrally joined ring member surrounding the drumhead flange, sealing means and reinforcing member and rigidly holding the drum head and the body in a liquidtight relation.
Claim 14
Dependent Claim
20 words
The shipping container of claim 9 wherein the cross section of the flanges and the reinforcing member are substantially rectangular.
Claim 15
Dependent Claim
24 words
The shipping container of claim 9 wherein the length of the connecting portions is relatively small in relation to the length of the extremities.
Claim 16
Dependent Claim
17 words
The shipping container of claim 9 wherein the ring member is transversely split and is welded together.
Claim 17
Dependent Claim
13 words
The shipping container of claim 9 wherein said reinforcing member is substantially solid.
References Cited (Backward Citations)
US1306809A
Cited
US1711176A
Cited
US2152634A
Cited
US2257697A
Cited
US2335174A
Cited
FR1014928A
Cited
US3505722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |