Patent US3877548A successfully refreshed from Google Patents.
US3877548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car hoist
Assignee: Individual
•
Filing: 1974-01-02
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Granted: 1975-04-15
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Expires: 1994-01-02
Abstract
Abstract A car hoist comprising runways, a lift mechanism disengageably engageable with the runways and operable to lift and lower them through a range of elevations, props for temporarily propping the runways at selected elevations within the range, and a jack carried by each runway operable by the lift mechanism when the runways are propped to raise and lower the car relative to the runway.
Inventors
- 👤 Stanley Hernick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:54
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/10; B66F7/16; B66F7/18; B66F7/02; B66F7/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
113 words
A vehicle hoist comprising: runways on which a vehicle is disposable for lifting and lowering thereby, said runways being spaced apart to accommodate the wheels of the vehicle; lift mechanism disengageably engageable with said runways and operable to lift and lower them as aforesaid through a range of elevations; props for temporarily propping said runways at selected elevations within said range, and a jack carried by each said runway disengageably engageable by said lift mechanism and thereby operable, when the runways are propped as aforesaid and said lift mechanism is disengaged from the runways, to raise and lower the vehicle relative to the runways at any elevation at which they may be propped.
Claim 2
Dependent Claim
113 words
A vehicle hoist comprising: runways on which a vehicle is disposable for lifting and lowering thereby, said runways being spaced apart to accommodate the wheels of the vehicle; lift mechanism disengageably engageable with said runways and operable to lift and lower them as aforesaid through a range of elevations; props for temporarily propping said runways at selected elevations within said range, and a jack carried by each said runway disengageably engageable by said lift mechanism and thereby operable, when the runways are propped as aforesaid and said lift mechanism is disengaged from the runways, to raise and lower the vehicle relative to the runways at any elevation at which they may be propped.
Claim 3
Dependent Claim
62 words
A vehicle hoist as defined in claim 1 wherein: said lift mechanism includes a crossbar which extends underneath each said runway, and being elevatable to engage and raise said runways and alternately capable of being lowered to lower said runways, and a ram for elevating and lowering said crossbar to lift and lower the runways through the range of elevations as aforesaid.
Claim 4
Dependent Claim
77 words
A vehicle hoist as defined in claim 2 wherein: each said jack includes a post which is vertically movable relative to the runway by which it is carried and has arms at its top for liftably and selectively engaging a vehicle standing on said runways, said crossbar including trapping means selectively operable to engage it with said post whereby to procure lifting of the jack and of the said vehicle when the crossbar is elevated as aforesaid.
Claim 5
Dependent Claim
32 words
A vehicle hoist as defined in claim 3 wherein: said trapping means is operable as aforesaid when said runways are propped and the crossbar is lowered out of engagement with said runways.
Claim 6
Dependent Claim
45 words
A vehicle hoist as defined in claim 3 wherein: said post is disposed at a side of the runway by which it is carried, and its said arms are swingable over the top of the runway to engage and disengage the frame of the vehicle.
Claim 7
Dependent Claim
24 words
A vehicle hoist as defined in claim 5 wherein: said post is disposed at the outside of the runway by which it is carried.
Claim 8
Dependent Claim
41 words
A vehicle hoist as defined in claim 3 wherein: said trapping means caried by said crossbar is selectively operable to engage the crossbar with said post as aforesaid or, alternately, to permit relative vertical movement between said crossbar and said post.
Claim 9
Dependent Claim
42 words
A vehicle hoist as defined in claim 7 wherein: said trapping means includes a footing for said post which is selectively moveable between a post engaging position and a post releasing position permitting relative vertical movement between said crossbar and said post.
Claim 10
Dependent Claim
31 words
A vehicle hoist as defined in claim 3 including a bearing on a side of each runway in which the jack post is slidable for vertical movement relative to said runway.
Claim 11
Dependent Claim
21 words
A vehicle hoist as defined in claim 1 wherein: the said props are disposed at each end of each said runway.
Claim 12
Dependent Claim
50 words
A vehicle hoist as defined in claim 10 wherein: each runway has a pair of props associated therewith, one of said pair being secured to the runway for raising and lowering therewith and the other of said pair being stationary, said runway having a sliding connection with said stationary prop.
Claim 13
Dependent Claim
21 words
A vehicle hoist as defined in claim 11 wherein: said sliding connection is constituted by a bearing carried by said runway.
Claim 14
Dependent Claim
23 words
A vehicle hoist as defined in claim 12 wherein: both stationary props and prop bearings are at the same end of the hoist.
Claim 15
Dependent Claim
26 words
A vehicle hoist according to claim 1 and including a lock operable to releasably lock each jack in a raised position relative to the respective runway.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |