Patent US3695394A successfully refreshed from Google Patents.
US3695394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking wheel chocks for tandem wheel vehicles
Assignee: Individual
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Filing: 1970-10-08
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Granted: 1972-10-03
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Expires: 1990-10-08
Abstract
Abstract Wheel chocks for a tandem wheel vehicle consisting of a pair of oppositely directed wedges adapted to be positioned between a set of tandem wheels, each wedge being adapted to be driven between the road surface and one of said wheels, an adjustable turnbuckle extending between and interconnecting said wedges, and a chain and padlock operable both to secure said chocks to the vehicle and to prevent operation of said turnbuckle.
Inventors
- 👤 Walter C Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:39
CPC Classifications
B; B60; B60T; B60T3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
Wheel chocks for vehicles having tandem-mounted, groundengaging wheels comprising: a. a pair of wedges adapted to be disposed between a pair of tanden related wheels, in the vertical plane thereof, with their apeces directed respectively forwardly and rearwardly, whereby to wedge respectively between the road surface and the peripheries of each of said wheels, b. an elongated, longitudinally incompressible connector extending between and attached at its respective ends to said wedges, and comprising a pair of oppositely threaded screws each pivoted to one of said wedges for movement in a plane normal to the operative faces of said wedge, and an elongated nut disposed coaxially with said screws, said screws being rotatably threaded into the opposite ends of said nut, said nut having an opening formed transversely therethrough intermediate its ends, and c. locking means operable to lock said connector releasably at any desired degree of extension, and to secure said wedges and said connector to said vehicle, said locking means comprising a linked chain adapted to be looped about a rigidly fixed portion of said vehicle and its end links brought together adjacent said nut, and a padlock having a hasp adapted to be threaded through said end links and the transverse opening of said nut.
Claim 2
Dependent Claim
207 words
Wheel chocks for vehicles having tandem-mounted, groundengaging wheels comprising: a. a pair of wedges adapted to be disposed between a pair of tanden related wheels, in the vertical plane thereof, with their apeces directed respectively forwardly and rearwardly, whereby to wedge respectively between the road surface and the peripheries of each of said wheels, b. an elongated, longitudinally incompressible connector extending between and attached at its respective ends to said wedges, and comprising a pair of oppositely threaded screws each pivoted to one of said wedges for movement in a plane normal to the operative faces of said wedge, and an elongated nut disposed coaxially with said screws, said screws being rotatably threaded into the opposite ends of said nut, said nut having an opening formed transversely therethrough intermediate its ends, and c. locking means operable to lock said connector releasably at any desired degree of extension, and to secure said wedges and said connector to said vehicle, said locking means comprising a linked chain adapted to be looped about a rigidly fixed portion of said vehicle and its end links brought together adjacent said nut, and a padlock having a hasp adapted to be threaded through said end links and the transverse opening of said nut.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |