Patent US3921840A successfully refreshed from Google Patents.
US3921840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable container emptying apparatus
Assignee: Caterpillar Inc
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Filing: 1974-06-04
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Granted: 1975-11-25
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Expires: 1994-06-04
Abstract
Abstract An open-sided container comprises a bottom wall having a plurality of openings formed therethrough each adapted to receive a roller therein when the container is placed on a support. The rollers project through the openings to lift and support articles retained in the container during removal thereof.
Inventors
- 👤 Sr Fred E Julien
- 👤 Elmer A Raithel
- 👤 Carl W Shafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:27
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/02; B65D88/022; B65G; B65G13/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
228 words
A container comprising a horizontally disposed bottom wall, an upstanding back wall attached on said bottom wall, a pair of upstanding and parallel sidewalls attached on said bottom wall, means defining at least two parallel rows of elongated openings through said bottom wall with the openings of each row being disposed in aligned relationship, a platform supporting said container and at least two parallel rows of roller means extending beyond the bottom wall of said container when the container is positioned on said platform, each of said roller means rotatably mounted independently on said platform and each projecting upwardly through a respective one of said elongated openings and vertically above a top surface of said bottom wall whereby articles supported on respective rows of said roller means can be moved thereon independently, alignment means cooperating between said container and said platform for locating each of said roller means in a respective one of said elongated openings, stop means secured on and extending above a forward end of said bottom wall, adjacent to the front open side of said container, having a vertical height less than the vertical height of the portion of each of said roller means projecting vertically above the top surface of said bottom wall and carrying means secured on said container adapted for engagement with a carrier for selectively removing said container from said platform.
Claim 2
Dependent Claim
228 words
A container comprising a horizontally disposed bottom wall, an upstanding back wall attached on said bottom wall, a pair of upstanding and parallel sidewalls attached on said bottom wall, means defining at least two parallel rows of elongated openings through said bottom wall with the openings of each row being disposed in aligned relationship, a platform supporting said container and at least two parallel rows of roller means extending beyond the bottom wall of said container when the container is positioned on said platform, each of said roller means rotatably mounted independently on said platform and each projecting upwardly through a respective one of said elongated openings and vertically above a top surface of said bottom wall whereby articles supported on respective rows of said roller means can be moved thereon independently, alignment means cooperating between said container and said platform for locating each of said roller means in a respective one of said elongated openings, stop means secured on and extending above a forward end of said bottom wall, adjacent to the front open side of said container, having a vertical height less than the vertical height of the portion of each of said roller means projecting vertically above the top surface of said bottom wall and carrying means secured on said container adapted for engagement with a carrier for selectively removing said container from said platform.
Claim 3
Dependent Claim
17 words
The container of claim 1 wherein said container is open at a top and front side thereof.
Claim 4
Dependent Claim
26 words
The container of claim 2 wherein three rows of said elongated openings are formed through said bottom wall in parallel relationship and extend between said sidewalls.
Claim 5
Dependent Claim
31 words
The container of claim 3 wherein each of said rows extends substantially the full length of said bottom wall, between said back wall and the front open side of said container.
Claim 6
Dependent Claim
28 words
The container of claim 4 wherein said rows further extend laterally substantially the full width of said bottom wall between said sidewalls, each of said openings being rectangulaR.
Claim 7
Dependent Claim
20 words
The container of claim 1 wherein said stop means constitutes a rail extending at least substantially entirely between said sidewalls.
Claim 8
Dependent Claim
19 words
The container of claim 1 further comprising a pair of laterally spaced support rails secured under said bottom wall.
Claim 9
Dependent Claim
16 words
The container of claim 7 wherein each support rail is disposed vertically below a respective sidewall.
Claim 10
Dependent Claim
28 words
The container of claim 7 wherein said alignment means comprises aligned apertures formed in each of said support rails and said platform and receiving a locating rod therein.
Claim 11
Dependent Claim
44 words
The container of claim 1 wherein said carrying means comprises at least one upstanding member secured on each of said sidewalls to extend thereabove and an opening formed through an upper end of each of said members adapted to be engaged by a carrier.
Claim 12
Dependent Claim
30 words
The container of claim 1 wherein said roller means are rotatably mounted on said platform to have their rotational axes disposed in parallel relationship and extending longitudinally between said sidewalls.
Claim 13
Dependent Claim
31 words
The container of claim 11 wherein said rows of roller means extend substantially the full length of said bottom wall, between said back wall and the front side of said container.
Claim 14
Dependent Claim
24 words
The container of claim 12 wherein said rows of roller means further extend substantially the full width of said bottom wall, between said sidewalls.
References Cited (Backward Citations)
US3578184A
Cited
US3675801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |