Patent US3800973A successfully refreshed from Google Patents.
US3800973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground trash and garbage container
Assignee: Individual
•
Filing: 1973-02-15
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Granted: 1974-04-02
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Expires: 1993-02-15
Abstract
Abstract An underground trash and garbage can container for maintaining a receptacle below ground level and for raising it above the ground for emptying. A spring actuated lifting platform supports the garbage or trash receptacle and raises it when released by foot pressure on a cam latch. The receptacle is lowered by forcing it down against spring pressure, winding the spring as it moves downwardly into the ground.
Inventors
- 👤 H Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:38
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/14; B65F1/1452; B65F1/1457
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
An underground container for garbage and trash receptacles comprising a housing, a pair of spaced parallel vertical channel tracks positioned in said housing along one side thereof, a carriage, a plurality of wheels on opposite sides of said carriage engaging in said channel tracks for guiding said carriage for vertical movement in said receptacle, a pair of beams extending horizontally outwardly from said carriage for supporting a trash or garbage receptacle, spring means on said carriage for raising said carriage upwardly in said container, a hydraulic check secured to said carriage for restraining the upward movement of said carriage, and a cam latch engaging said hydraulic check for holding said carriage at its lowermost position in said container.
Claim 2
Dependent Claim
118 words
An underground container for garbage and trash receptacles comprising a housing, a pair of spaced parallel vertical channel tracks positioned in said housing along one side thereof, a carriage, a plurality of wheels on opposite sides of said carriage engaging in said channel tracks for guiding said carriage for vertical movement in said receptacle, a pair of beams extending horizontally outwardly from said carriage for supporting a trash or garbage receptacle, spring means on said carriage for raising said carriage upwardly in said container, a hydraulic check secured to said carriage for restraining the upward movement of said carriage, and a cam latch engaging said hydraulic check for holding said carriage at its lowermost position in said container.
Claim 3
Dependent Claim
37 words
A device as claimed in claim 1 wherein said hydraulic check includes a hydraulic cylinder secured to said carriage and movable therewith and a piston rod extending downwardly from said carriage and secured to said channel tracks.
Claim 4
Dependent Claim
24 words
A device as claimed in claim 2 wherein said cam latch engages about said hydraulic cylinder to latch said hydraulic cylinder against upward movement.
Claim 5
Dependent Claim
67 words
A device as claimed in claim 1 wherein said spring means for moving said carriage comprises a reel mounted in said carriage, a coil spring mounted in said reel for rotating said reel in a direction to raise said carriage and a cable wound on said spring reel and secured to the upper end of said channel tracks for raising said carriage upon rotation of said reel.
Claim 6
Dependent Claim
20 words
A device as claimed in claim 4 including means for adjusting the tension of said coil spring in said reel.
References Cited (Backward Citations)
US1277567A
Cited
US2528056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |