Patent US4393767A successfully refreshed from Google Patents.
US4393767A
Expired / Lapsed
US
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Vertical refuse compactor
Assignee: REFTECH Ltd
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Filing: 1981-08-28
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Granted: 1983-07-19
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Expires: 2001-08-28
Abstract
Abstract The invention discloses a refuse compactor assembly for compacting refuse into a cubical open-topped refuse receptacle having an enclosure structure for slidably receiving the cubical refuse receptacle and retaining same within the compactor assembly by force of gravity alone by providing a downwardly rearwardly inclined refuse receptacle support surface in the interior of the refuse compactor assembly. The refuse placed into the refuse receptacle is compacted by a reciprocably operable ram member which is provided with a wedge like compactor surface in the shape of a prism or, alternatively, an inverted pyramid.
Inventors
- 👤 James H. Dutfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:51
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/30; B30B9/3042; B30B9/3003; B30B9/3021
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
177 words
A compactor for compacting material in an open topped receptacle comprising: an enclosure structure including a bottom side, a coextensive top side and rigid vertical post structures extending between and connecting said bottom and top sides, the top side having an opening for passing refuse material therethrough; said bottom side including a receptacle support surface which is inclined from a high front end to a low rear end; the enclosure structure defining a front opening for passing a receptacle therethrough; means for retaining a receptacle on said support surface, said retaining means preventing horizontal movement of said receptacle in any horizontal direction except in a direction up said inclined surface out of said front opening; and a compactor device mounted on the top side over said top side opening, said compactor device including a ram member mounted for reciprocal, vertical movement into and out of a receptacle arranged on said support surface, said compactor device having a refuse receiving opening located below the ram for passing refuse therethrough and through the top side opening into a receptacle.
Claim 2
Dependent Claim
177 words
A compactor for compacting material in an open topped receptacle comprising: an enclosure structure including a bottom side, a coextensive top side and rigid vertical post structures extending between and connecting said bottom and top sides, the top side having an opening for passing refuse material therethrough; said bottom side including a receptacle support surface which is inclined from a high front end to a low rear end; the enclosure structure defining a front opening for passing a receptacle therethrough; means for retaining a receptacle on said support surface, said retaining means preventing horizontal movement of said receptacle in any horizontal direction except in a direction up said inclined surface out of said front opening; and a compactor device mounted on the top side over said top side opening, said compactor device including a ram member mounted for reciprocal, vertical movement into and out of a receptacle arranged on said support surface, said compactor device having a refuse receiving opening located below the ram for passing refuse therethrough and through the top side opening into a receptacle.
Claim 3
Dependent Claim
37 words
A compactor according to claim 1 wherein said ram member has a bottom compactor surface which is divided along a centre line, said surface being inclined upwardly from said centre line on both sides of said line.
Claim 4
Dependent Claim
32 words
A compactor according to claim 2 wherein said bottom compactor surface has an area not greater than one-half the area of the opening in the top of the receptacle to be used.
Claim 5
Dependent Claim
21 words
A compactor according to claim 1, 2 or 3 wherein the gradient of the support surface is between 1% and 10%.
Claim 6
Dependent Claim
19 words
A compactor according to claim 1, 2 or 3 wherein the gradient of the support surface is about 2%.
Claim 7
Dependent Claim
56 words
A compactor according to claim 1, 2 or 3 wherein said retaining means comprises an enclosure structure including an upper horizontal frame, a lower horizontal frame on which said support surface is provided, rigid, vertical frame members extending between and connecting said upper and lower frames, and further frame members extending between said vertical frame members.
Claim 8
Dependent Claim
22 words
A compactor according to claim 6 wherein said compactor device is mounted on top of and supported by said upper horizontal frame.
Claim 9
Dependent Claim
29 words
A compactor according to claim 1, 2 or 3 wherein said support surface is substantially square and said compactor device is positioned above the centre of said support surface.
Claim 10
Dependent Claim
38 words
A compactor according to claim 1 wherein the bottom surface of said ram member has an inverted pyramidal shape and an area not greater than one-half the area of the open top of the receptacle to be used.
Claim 11
Dependent Claim
128 words
A refuse compactor comprising: a substantially cubical enclosure structure, having a top side and a substantially coextensive bottom side, rigid interconnecting members extending therebetween, and receptacle retaining means attached to the enclosure structure, said enclosure structure provided with a frontal opening for slidably receiving an open topped refuse receptacle into the interior thereof, a downwardly rearwardly inclined receptacle support surface disposed along the interior of the bottom side of the enclosure structure, and a compactor assembly attached to the exterior of the top side of the enclosure structure and defining a refuse receiving opening in communication with the interior of the enclosure structure, said assembly including a ram member slidably disposed within the compactor assembly and reciprocably operable into and out of the interior of the enclosure structure.
Claim 12
Dependent Claim
128 words
A refuse compactor comprising: a substantially cubical enclosure structure, having a top side and a substantially coextensive bottom side, rigid interconnecting members extending therebetween, and receptacle retaining means attached to the enclosure structure, said enclosure structure provided with a frontal opening for slidably receiving an open topped refuse receptacle into the interior thereof, a downwardly rearwardly inclined receptacle support surface disposed along the interior of the bottom side of the enclosure structure, and a compactor assembly attached to the exterior of the top side of the enclosure structure and defining a refuse receiving opening in communication with the interior of the enclosure structure, said assembly including a ram member slidably disposed within the compactor assembly and reciprocably operable into and out of the interior of the enclosure structure.
Claim 13
Dependent Claim
24 words
A refuse compactor as recited in claim 10 wherein the gradient of the downwardly rearwardly inclined receptacle support surface is between 1% to 10%.
Claim 14
Dependent Claim
18 words
A refuse compactor as recited in claim 10 wherein the gradient of the support surface is about 2%.
Claim 15
Dependent Claim
36 words
A refuse compactor as recited in claim 11 wherein the frontal opening is rectangular and wherein the enclosure structure further includes means for guiding an open topped refuse receptacle, into the interior of the enclosure structure.
Claim 16
Dependent Claim
39 words
A refuse compactor as recited in claim 13 wherein the means for guiding the open topped refuse receptacle comprises: a pair of protrusions, each disposed at a respective upper corner of the rectangular frontal opening of the enclosure structure.
Claim 17
Dependent Claim
57 words
A refuse compactor as recited in claim 10, 11 or 13 wherein the bottom end of the ram member defines a triangular prism surface having a height to base width ratio between the values of 5% to 20%, which surface has an area not greater than one-half the area of the opening in the open topped receptacle.
Claim 18
Dependent Claim
56 words
A refuse compactor as claimed in claim 10 or 11 wherein the bottom end of the ram member defines an inverted pyramidal surface having a height to base length ratio between the values of 5% to 20%, which surface has an area not greater than one-half the area of the opening in the open topped receptacle.
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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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |