US4282974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic-enclosed metal barrel
Assignee: Schaefer Werke GmbH
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Filing: 1979-08-16
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Granted: 1981-08-11
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Expires: 1999-08-16
Abstract
Abstract A plastic encased metal barrel has annular stack edges of plastic, which axially project beyond the barrel bottom and top. The top and bottom stack edges form annular noses which project axially. The diameters of the annular noses are so related to one another that the annular nose on one stack edge can grip over the annular nose on the other stack edge. The top and bottom barrel ends are preferably arcuate and one end carries a bung socket. The outer coating or shell of plastic is preferably foam. The bung socket is surrounded by a reinforcing sheet metal plate enveloped by the plastic. The plastic coat forms a substantially plane surface which surrounds the bung socket and serves as an inscription field, wherein the inscription is formed at least in part by indentations in the plastic mass.
Inventors
- 👤 Siegfried Quandel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:39
CPC Classifications
B; B65; B65D; B65D11/00; B65D11/02; B65D11/06; B65D11/08; B65D7/00; B65D7/02; B65D7/04; B65D7/045; Y; Y10; Y10S; Y10S220/00; Y10S220/01
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
149 words
In a barrel including an inner shell of sheet metal arced in the area of the barrel bottoms and on which is provided a bung socket, and further including a coat of plastic, said bung socket being surrounded by a reinforcing sheet metal plate enveloped by said plastic coat, the improvement comprising wherein said reinforcing sheet metal plate encircles said bung socket and includes at least a portion thereof which is spaced from said barrel bottom, wherein said plastic coat is received in the spacing between said portion of said reinforcing sheet metal plate and said barrel bottom and encases said reinforcing sheet metal plate therein, wherein said plastic coat at the end which encases said reinforcing plate therein forms a substantially planar surface which encircles said bung socket and defines an inscription field, and wherein said inscription field consists at least partially of indentations in said plastic coat.
Claim 2
Dependent Claim
149 words
In a barrel including an inner shell of sheet metal arced in the area of the barrel bottoms and on which is provided a bung socket, and further including a coat of plastic, said bung socket being surrounded by a reinforcing sheet metal plate enveloped by said plastic coat, the improvement comprising wherein said reinforcing sheet metal plate encircles said bung socket and includes at least a portion thereof which is spaced from said barrel bottom, wherein said plastic coat is received in the spacing between said portion of said reinforcing sheet metal plate and said barrel bottom and encases said reinforcing sheet metal plate therein, wherein said plastic coat at the end which encases said reinforcing plate therein forms a substantially planar surface which encircles said bung socket and defines an inscription field, and wherein said inscription field consists at least partially of indentations in said plastic coat.
Claim 3
Dependent Claim
16 words
A barrel according to claim 1, wherein said substantially planar surface has a substantially circular shape.
Claim 4
Dependent Claim
21 words
A barrel according to claim 1, wherein within said planar surface there is arranged at least one elevated or recessed field.
Claim 5
Dependent Claim
44 words
A barrel according to claim 1, including an annular recess on and encircling said bung socket, said recess being defined by a lip on said bung socket and a surface on said reinforcing sheet metal plate, said plastic coat being received in said recess.
Claim 6
Dependent Claim
18 words
A barrel according to claim 4, wherein said recess is limited downwardly by said reinforcing sheet metal plate.
Claim 7
Dependent Claim
43 words
A barrel according to claim 1, wherein said reinforcing sheet metal plate rests on a stop shoulder on said bung socket and is clamped between said stop shoulder and said inner shell, and wherein said inner shell is welded to said bung socket.
Claim 8
Dependent Claim
79 words
A barrel according to claim 1, wherein said plastic coat has annular stack edges formed thereon and projecting axially beyond said barrel bottom and said barrel top, wherein said top and bottom stack edges have annular noses formed thereon and which project axially, and wherein the diameters of said annular noses are so related to one another, that the annular nose of the one stack edge can grip over and encircle the annular nose of the other stack edge.
Claim 9
Dependent Claim
34 words
A barrel according to claim 7, wherein the inside diameter of the annular nose of said top stack edge is larger than the outside diameter of the annular nose of said bottom stack edge.
Claim 10
Dependent Claim
32 words
A barrel according to claim 7, wherein the outer diameter of each stack edge is of the same size or smaller than the outside diameter of said plastic coat of said barrel.
Claim 11
Dependent Claim
16 words
A barrel according to claim 7, including handle or outlet openings provided in said stack edges.
Claim 12
Dependent Claim
24 words
A barrel according to claim 10, wherein said handle and outlet openings are offset approximately 90° from a parting plane of a plastic mold.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |