US3756150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trash compactor ram
Assignee: Goodman Co LP
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Filing: 1971-06-07
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Granted: 1973-09-04
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Expires: 1991-06-07
Abstract
Abstract A trash compactor employs a vertically descending ram operated by a single, centrally disposed motor driven screw swivelly attached to the ram to accommodate tilting of the latter during compacting. The head of the ram is removable and of a scalloped shape for better compaction of cans and bottles. The ram engages trash deposited in a round, bucket-like container supported on springs carried on a slide-out mount from which the container is removable, compaction causing the container to descend against its supporting springs until it seats on the base of the compactor. The container incorporates a liner, a disposable bag and several shield plates to protect the container and the bag. An electrical control circuit is included, together with several safety interlocks, for actuating the ram and automatically reversing it.
Inventors
- 👤 J Bourgeois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:50
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/30; B30B9/306; B30B9/3064; Y; Y10; Y10S; Y10S220/00; Y10S220/908
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
329 words
In a trash compactor having a ram assembly movable in a substantially vertical path; a container in trash compacting position beneath said ram assembly and movable therefrom for emptying; power operated means for moving said ram assembly in a compacting stroke downwardly into said container substantially its full effective depth and then upwardly along said path so that said container can be removed for emptying, said power operated means exerting force upon said ram assembly in a single axis of thrust normally parallel to said path and including a single screw and threaded means carried by said ram assembly permitting swivel movement of said assembly relative to said axis; and a plurality of stationary guides for said ram assembly extending parallel to said thrust axis and spaced remotely from and about said axis and screw outboard of the exterior of said container, the improvement in said ram assembly comprisiNg: a substantially horizontal top member carrying said threaded means and centrally disposed with respect to said axis; opposite skirt members depending extensively from said top member, said skirt members slidably engaging said stationary guides during movement of said assembly and spaced from and about said thrust axis to pass outboard of the exterior of said container during the compacting stroke of said ram assembly; a ram head beneath said top member having a compacting face normal to said path and centrally disposed with respect to said thrust axis, said ram head being fittingly received in said container during said compacting stroke, the perimeter of said ram head being inboard of said skirt members; and means connecting said ram head to said top member and spacing said compacting face therebelow a distance substantially equal to the full effective depth of said container, the outer confines of said connecting means lying inboard of the perimeter of said ram head, said connecting means and said top and skirt members together being effective to resist tilting of said ram head during said compacting stroke.
Claim 2
Dependent Claim
329 words
In a trash compactor having a ram assembly movable in a substantially vertical path; a container in trash compacting position beneath said ram assembly and movable therefrom for emptying; power operated means for moving said ram assembly in a compacting stroke downwardly into said container substantially its full effective depth and then upwardly along said path so that said container can be removed for emptying, said power operated means exerting force upon said ram assembly in a single axis of thrust normally parallel to said path and including a single screw and threaded means carried by said ram assembly permitting swivel movement of said assembly relative to said axis; and a plurality of stationary guides for said ram assembly extending parallel to said thrust axis and spaced remotely from and about said axis and screw outboard of the exterior of said container, the improvement in said ram assembly comprisiNg: a substantially horizontal top member carrying said threaded means and centrally disposed with respect to said axis; opposite skirt members depending extensively from said top member, said skirt members slidably engaging said stationary guides during movement of said assembly and spaced from and about said thrust axis to pass outboard of the exterior of said container during the compacting stroke of said ram assembly; a ram head beneath said top member having a compacting face normal to said path and centrally disposed with respect to said thrust axis, said ram head being fittingly received in said container during said compacting stroke, the perimeter of said ram head being inboard of said skirt members; and means connecting said ram head to said top member and spacing said compacting face therebelow a distance substantially equal to the full effective depth of said container, the outer confines of said connecting means lying inboard of the perimeter of said ram head, said connecting means and said top and skirt members together being effective to resist tilting of said ram head during said compacting stroke.
Claim 3
Dependent Claim
51 words
The compactor of claim 1 wherein said top member comprises a rectangular top plate and said skirt members a pair of rectangular plates depending therefrom having vertical angular corner portions with friction reducing material disposed thereover and slidably engaging said stationary guides, said stationary guides comprising a plurality of angular channels.
Claim 4
Dependent Claim
49 words
The compactor of claim 2 wherein said threaded means includes an internally threaded nut mounted to said top plate against rotation relative thereto and said screw is rotably driven, said mounting also preventing movement of said threaded member relative to said assembly in either direction along said thrust axis.
Claim 5
Dependent Claim
46 words
The compactor of claim 2 wherein the outer confines of said connecting means extend convergingly upwardly from closely adjacent the perimeter of said ram head and are attached to the underside of said top plate closely adjacent and about said thrust axis and said threaded means.
Claim 6
Dependent Claim
96 words
The compactor of claim 4 wherein said connecting means comprise a pair of formed plate members, each of said members including a central trapezoidal portion having its converging edges extending upwards from said ram head to said top plate, said trapezoidal portions being disposed in spaced facing relation on opposite sides of said screw, each of said trapezoidal portions having reinforcing portions along their entire converging edges, said reinforcing portions being angled with respect to said trapezoidal portions outwardly toward the perimeter of said ram head and secured to said top plate and said ram head.
Claim 7
Dependent Claim
58 words
The compactor of claim 5 including a cabinet having a front face, and wherein said top plate includes a first pair of opposite edges normal to said face and spaced apart a greater distance than a second pair of opposite edges of said plate parallel to said face, said skirt plates depending from said first pair of edges.
Claim 8
Dependent Claim
35 words
The compactor of claim 5 wherein said trapezoidal portions are disposed generally parallel to said second pair of said top plate edges, said reinforcing portions being angled outwardly toward said last-named pair of plate edges.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |