US4447042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle lift
Assignee: Yasui Sangyo Co Ltd
•
Filing: 1981-09-09
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Granted: 1984-05-08
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Expires: 2001-09-09
Abstract
Abstract A vehicle lift having a platform mounted on a base for supporting a vehicle, and having a first link which moves the platform up and down. A table is mounted to the platform and supports the chassis of the vehicle by moving the table up and down by a second link. The table may be movably mounted to the platform and a safety device may be provided for preventing the platform from a sudden fall.
Inventors
- 👤 Saburo Masui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:32
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/06; B66F7/0641; B66F7/065; B66F7/0666; B66F7/0675; B66F7/08; B66F7/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
130 words
A vehicle lift comprising: (a) a base; (b) a platform, mounted on the base, on which a vehicle is driven up upon; said platform having a pair of foot plates which are movable in a horizontal plane; (c) a first link which moves the platform up and down; (d) a table for supporting a chassis of the vehicle movably mounted to the platform; (e) a second link which moves the table up and down independent of the movement of said platform by said first link; and (f) said table being movably mounted to the platform through a chassis provided with rollers guided by guide grooves in wheel support members, and said chassis is adapted to move forward and rearward along the platform by being suspended from said wheel support members.
Claim 2
Dependent Claim
130 words
A vehicle lift comprising: (a) a base; (b) a platform, mounted on the base, on which a vehicle is driven up upon; said platform having a pair of foot plates which are movable in a horizontal plane; (c) a first link which moves the platform up and down; (d) a table for supporting a chassis of the vehicle movably mounted to the platform; (e) a second link which moves the table up and down independent of the movement of said platform by said first link; and (f) said table being movably mounted to the platform through a chassis provided with rollers guided by guide grooves in wheel support members, and said chassis is adapted to move forward and rearward along the platform by being suspended from said wheel support members.
Claim 3
Dependent Claim
36 words
A lift as defined in claim 1, wherein said pair of foot plates have the same height as that of the platform, and the rear wheels of a vehicle are positioned horizontally on said foot plates.
Claim 4
Dependent Claim
29 words
A lift as defined in claims 1 or 2, wherein one of the first and the second links comprises a parallelogram link and the other comprises a X-shaped link.
Claim 5
Dependent Claim
19 words
A lift as defined in claims 1 or 2, wherein the first and the second links comprise parallelogram links.
Claim 6
Dependent Claim
19 words
A lift as defined in claims 1 or 2, wherein the first and the second links comprise X-shaped links.
Claim 7
Dependent Claim
60 words
A lift as defined in claims 1 or 2, wherein said first link comprises link members, one of the ends of which are pivotally connected to the base and the other of the ends of which are pivotally connected to the platform, and wherein hydraulic cylinder means are arranged in the connection portions of the link members and the platform.
Claim 8
Dependent Claim
77 words
A lift as defined in claim 6, wherein the platform is provided with a safety device having lock means with lock steps, which prevent the platform from a sudden fall by engaging the cylinders of the hydraulic cylinder means with the lock steps of the lock means, and wherein the locks of the cylinders of the hydraulic cylinder means with the lock steps of the lock means are released by cylinder means when the platform is lowered.
References Cited (Backward Citations)
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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) | 1987-05-08 | 1987-11-07 | 1988-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-08 | 1991-11-07 | 1992-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-08 | 1995-11-07 | 1996-05-08 | $7700.00 | Window Closed / Lapsed |