US3756561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet lift and loading assembly
Assignee: Individual
•
Filing: 1972-03-27
•
Granted: 1973-09-04
•
Expires: 1992-03-27
Abstract
Abstract A carpet lifting and loading assembly comprises a track supported by two sections. One section is movable on the track relative to the other. A cable lifting means is mounted on the fixed section and track of the assembly. Means are mounted on the movable section that cooperates with the cable lifting means to prevent the movable section from moving to a position on the track that would render the assembly unstable when a load is attached and supported by the cable lifting means.
Inventors
- 👤 T Rendelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:19
CPC Classifications
B; B66; B66C; B66C19/00; B66C19/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
A lift assembly having a track structure supported by at least a first and a second end section, said assembly comprising means for mounting said second end section for movement with respect to said track, cable means supported on said track for attaching to a load and for raising and lowering said load with respect to said track, and means on said second end section cooperating with said movement mounting means and said cable means for precluding said second end section movement in a preselected direction on said track structure beyond a predetermined location thereon when a load is attached and supported by said cable means.
Claim 2
Dependent Claim
106 words
A lift assembly having a track structure supported by at least a first and a second end section, said assembly comprising means for mounting said second end section for movement with respect to said track, cable means supported on said track for attaching to a load and for raising and lowering said load with respect to said track, and means on said second end section cooperating with said movement mounting means and said cable means for precluding said second end section movement in a preselected direction on said track structure beyond a predetermined location thereon when a load is attached and supported by said cable means.
Claim 3
Dependent Claim
20 words
The combination as in claim 1 including means for fixedly mounting said first end section with respect to said track.
Claim 4
Dependent Claim
76 words
The combination as in claim 2 wherein said movable second end section supporting means includes a trolley mounted for movement on said track, said second end section being fixedly attached to said trolley thereby permitting said second end section movement on said track, said movement precluding means including fixed stops located at a preselected position on said track, said stops contacting a portion of said trolley and precluding said second end section movement past said stops.
Claim 5
Dependent Claim
49 words
The combination as in claim 3 wherein said trolley includes a brake mounted for movement with respect to said trolley and relative to said track, means for effecting the brake movement into contact with said track to thereby fixedly locate trolley and said second end section on said track.
Claim 6
Dependent Claim
67 words
The combination as in claim 4 wherein said brake movement means moves said brake to a first position that contacts said stops and precludes trolley movement past same, said brake movement means operable to move said brake to a second position that permits said brake and trolley to bypass said stop thereby permitting said second end section to move substantially along the entire length of said track.
Claim 7
Dependent Claim
46 words
The combination as in claim 5 wherein said cable means includes at least one cable length, an aperture in said brake, said cable extending through said aperture and operable to preclude brake movement to said second position when a load is attached to said cable length.
Claim 8
Dependent Claim
30 words
The combination as in claim 6 including means for increasing the force required to move said brake to said second position when a load is attached to said cable length.
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) | 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 |