Patent FR490266A successfully refreshed from Google Patents.
Patent US4491201A successfully refreshed from Google Patents.
US4491201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley
Assignee: Ammco Tools Technology Corp
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Filing: 1982-11-29
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Granted: 1985-01-01
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Expires: 2002-11-29
Abstract
Abstract A trolley assembly for use in an automobile lift rack employs individual trolley wheel mounts wherein the wheel is supported by a plurality of elastomeric mounts arranged in vertically displaced, mutual relationship to prevent bending of the mounts when the trolley assembly is loaded.
Inventors
- 👤 Craig E. Mountz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:55
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
136 words
In a trolley assembly for movement along a rail, the combination comprising a frame, brake means carried by said frame for braking engagement with said rail, a trolley wheel support, a trolley wheel rotatably carried by said support, and at least three elastomeric mounts connecting said trolley wheel support to said frame with said wheel resting on said rail and said brake means spaced above said rail in disengaged relationship therewith, said elastomeric mounts each including an elastomeric member secured at one end to said support and secured at the end opposite said one end to said frame, at least two of said mounts being displaced vertically from one other of said mounts, whereby a downward force on said frame causes said mounts to move in shear and permit said brake means to engage said rail.
Claim 2
Dependent Claim
136 words
In a trolley assembly for movement along a rail, the combination comprising a frame, brake means carried by said frame for braking engagement with said rail, a trolley wheel support, a trolley wheel rotatably carried by said support, and at least three elastomeric mounts connecting said trolley wheel support to said frame with said wheel resting on said rail and said brake means spaced above said rail in disengaged relationship therewith, said elastomeric mounts each including an elastomeric member secured at one end to said support and secured at the end opposite said one end to said frame, at least two of said mounts being displaced vertically from one other of said mounts, whereby a downward force on said frame causes said mounts to move in shear and permit said brake means to engage said rail.
Claim 3
Dependent Claim
32 words
The combination according to claim 1 wherein said trolley wheel support is a plate, and said one other of said mounts is aligned with the axis of rotation of said trolley wheel.
Claim 4
Dependent Claim
23 words
The combination according to claim 2 wherein said plurality of mounts comprises two mounts vertically displaced from said one other of said mounts.
Claim 5
Dependent Claim
24 words
The combination according to claim 1 wherein said mounts each comprises an elastomeric part providing the sole connection between said support and said frame.
Claim 6
Dependent Claim
17 words
The combination according to claim 4 wherein said brake means is an edge surface of said frame.
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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) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |