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US3810663A
Expired / Lapsed
US
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Vehicular bag hoist
Assignee: Holland USA Inc
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Filing: 1972-10-25
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Granted: 1974-05-14
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Expires: 1992-10-25
Abstract
Abstract An elevatable vehicular hauling assembly employing expandable hoisting bellows, a pair of sliding parallelogram linkages, and vertical alignment retention and position control means interlinked therewith.
Inventors
- 👤 H Berends
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:36
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0807; B62D53/0821; B60; B60P; B60P1/00; B60P1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
A fifth wheel assembly comprising: an affixable support bed; a fifth wheel mount above said support bed; hoist means between said support bed and said fifth wheel mount; slide means laterally astraddle of said hoist means and slidably mounted on said support bed, for forward and rearward movement thereon; parallelogram stabilizing linkage between said slide means and said fifth wheel mount, movable vertically angularly with raising and lowering of said fifth wheel mount; and vertical alignment retention means between said support bed and said fifth wheel mount to prevent significant fore and aft movement of said fifth wheel mount with raising and lowering thereof, said vertical alignment retention means comprising arms pivotally attached to said support bed and pivotally attached to said fifth wheel mount.
Claim 2
Dependent Claim
125 words
A fifth wheel assembly comprising: an affixable support bed; a fifth wheel mount above said support bed; hoist means between said support bed and said fifth wheel mount; slide means laterally astraddle of said hoist means and slidably mounted on said support bed, for forward and rearward movement thereon; parallelogram stabilizing linkage between said slide means and said fifth wheel mount, movable vertically angularly with raising and lowering of said fifth wheel mount; and vertical alignment retention means between said support bed and said fifth wheel mount to prevent significant fore and aft movement of said fifth wheel mount with raising and lowering thereof, said vertical alignment retention means comprising arms pivotally attached to said support bed and pivotally attached to said fifth wheel mount.
Claim 3
Dependent Claim
16 words
The fifth wheel assembly in claim 1 wherein said hoist means comprises vertically expandable bellows means.
Claim 4
Dependent Claim
113 words
A fifth wheel assembly comprising: support structure; a fifth wheel mount above said support structure; hoist means between said support structure and said fifth wheel mount; parallelogram linkage between said support structure and said fifth wheel mount, movable vertically angularly with raising and lowering of said fifth wheel mount; and position control means to control said fifth wheel mount relative to fore and aft movement with raising and lowering thereof; said support structure including an affixable bed and slide means slidably engaged with said bed to be movable fore and aft on said bed, with said parallelogram linkage being pivotally connected with said slide means and pivotally connected to said fifth wheel mount.
Claim 5
Dependent Claim
113 words
A fifth wheel assembly comprising: support structure; a fifth wheel mount above said support structure; hoist means between said support structure and said fifth wheel mount; parallelogram linkage between said support structure and said fifth wheel mount, movable vertically angularly with raising and lowering of said fifth wheel mount; and position control means to control said fifth wheel mount relative to fore and aft movement with raising and lowering thereof; said support structure including an affixable bed and slide means slidably engaged with said bed to be movable fore and aft on said bed, with said parallelogram linkage being pivotally connected with said slide means and pivotally connected to said fifth wheel mount.
Claim 6
Dependent Claim
43 words
The fifth wheel assembly in claim 3 wherein said position control means includes vertical alignment retention means between said fifth wheel mount and said support structure to prevent significant fore and aft movement of said fifth wheel mount with raising and lowering thereof.
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |