Patent US4497469A successfully refreshed from Google Patents.
US4497469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Van engine removal assembly
Assignee: Individual
•
Filing: 1983-03-18
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Granted: 1985-02-05
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Expires: 2003-03-18
Abstract
Abstract A conventional floor hoist having a removable attachment mounted thereon. The attachment comprises a swivel clamp which is removably mounted on the horizontally extending support arm of the floor hoist. A first frame member is pivotally connected at its upper end to the swivel clamp and extends downwardly therefrom. A second frame member extends forwardly from the lower end of the first frame member and has chains extending therefrom for attachment to the van engine. A length adjustable chain extends from the second frame member to the end of the support arm of the floor hoist to enable the attitude of the second frame member to be easily altered. The support arm of the floor hoist is pivotally movable by means of a hydraulic cylinder.
Inventors
- 👤 Richard W. Barnhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:29
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/02; B62B1/06; B62B2202/00; B62B2202/60; B62B2203/00; B62B2203/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
224 words
In combination, a floor hoist comprising a wheeled frame means and having at least one floor engaging stabilizer arm extending therefrom, an upstanding post means, an elongated support arm, having first and secondary ends, pivotally secured at its first end, about a horizontal axis, to said post means adjacent the upper end thereof and extending therefrom above said stabilizer arm, and means for selectively pivotally moving said support arm upwardly and downwardly relative to said post means, and a van engine removal assembly secured to said support arm, said assembly comprising a first frame member having upper and lower ends and being secured at its upper end to said support arm between the ends thereof, and an elongated second frame member extending from the lower end of said first frame member beyond the second end of said support arm, said second frame member having an outer end positioned outwardly of said second end of said support arm, said second frame member being positioned below said support arm and generally parallel thereto, support means extending from said support arm, adjacent its second end, to said second frame member intermediate the length thereof, means on the outer end of said second frame member for attachment to the van engine, and a swivel means connecting the upper end of said first frame member to said support arm.
Claim 2
Dependent Claim
224 words
In combination, a floor hoist comprising a wheeled frame means and having at least one floor engaging stabilizer arm extending therefrom, an upstanding post means, an elongated support arm, having first and secondary ends, pivotally secured at its first end, about a horizontal axis, to said post means adjacent the upper end thereof and extending therefrom above said stabilizer arm, and means for selectively pivotally moving said support arm upwardly and downwardly relative to said post means, and a van engine removal assembly secured to said support arm, said assembly comprising a first frame member having upper and lower ends and being secured at its upper end to said support arm between the ends thereof, and an elongated second frame member extending from the lower end of said first frame member beyond the second end of said support arm, said second frame member having an outer end positioned outwardly of said second end of said support arm, said second frame member being positioned below said support arm and generally parallel thereto, support means extending from said support arm, adjacent its second end, to said second frame member intermediate the length thereof, means on the outer end of said second frame member for attachment to the van engine, and a swivel means connecting the upper end of said first frame member to said support arm.
Claim 3
Dependent Claim
16 words
The floor hoist of claim 1 wherein said support means comprises a length adjustable chain means.
Claim 4
Dependent Claim
16 words
The floor hoist of claim 1 wherein said assembly is removably secured to said floor hoist.
References Cited (Backward Citations)
US4029308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |