US3908541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crushing device for household wastes
Assignee: Lawrence Peska Associates Inc
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Filing: 1974-07-03
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Granted: 1975-09-30
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Expires: 1994-07-03
Abstract
Abstract This disclosure is directed to a crushing device for household wastes which includes a closed container having a front door; a ram head vertically movable in the container; a pair of cylinders mounted above the head and connected thereto by a pair of push rods pivoted at their mid point and having rollers at each extremity in contact with the top of the container and the ram head. The upper rollers are connected to a hand pump on the top of the container and actuated thereby.
Inventors
- 👤 Rolf W Meidell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/006; B30B9/00; B30B9/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
147 words
A device for crushing and compacting refuse comprising, in combination, a container including a side door hinged thereto, and a top trap door in said side door for introducing refuse in said container; a slidable ram head vertically movable in said container; ball bearings mounted along the periphery of said head for facilitating vertical movement thereof in said container; a pair of pivoted arms having rollers at their lower ends adapted to roll on the top of said ram head; straps holding said rollers on said head; cylinders connected to the upper ends of said arms for pushing said rollers against said head to lower same and to crush refuse in said container; a pump operatively connected to said cylinders; return means stretched between said arms for normally urging said arms together for raising said ram head when pressure of said cylinders on said head is stopped.
Claim 2
Independent Claim
147 words
A device for crushing and compacting refuse comprising, in combination, a container including a side door hinged thereto, and a top trap door in said side door for introducing refuse in said container; a slidable ram head vertically movable in said container; ball bearings mounted along the periphery of said head for facilitating vertical movement thereof in said container; a pair of pivoted arms having rollers at their lower ends adapted to roll on the top of said ram head; straps holding said rollers on said head; cylinders connected to the upper ends of said arms for pushing said rollers against said head to lower same and to crush refuse in said container; a pump operatively connected to said cylinders; return means stretched between said arms for normally urging said arms together for raising said ram head when pressure of said cylinders on said head is stopped.
Claim 3
Dependent Claim
36 words
The device of claim 1, further including conduits connecting said cylinders to said pump and a pressure release valve in one of said conduits for pre-setting a pressure compatible with the internal resistance of said container.
Claim 4
Dependent Claim
16 words
The device of claim 1, wherein said pump is mounted on said top of said container.
Claim 5
Dependent Claim
11 words
The device of claim 1, wherein said cylinders are air cylinders.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |