US3700077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chock for a tandem wheeled trailer
Assignee: Individual
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Filing: 1971-07-13
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Granted: 1972-10-24
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Expires: 1991-07-13
Abstract
Abstract This invention relates to a means of holding the wheels of a trailer or the like against accidental rolling or movement. The spaced hollow tubes engage aligned wheels of the trailer and are pressed tightly against these wheels by means of an off-center coupling which is extended by pressing downwardly against the hinged portion of the coupling.
Inventors
- 👤 Abraham Harder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:12
CPC Classifications
B; B60; B60T; B60T3/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
A chock assembly for placing between two tandem wheels to hold the wheels from rolling, comprising two cylindrical chocks for positioning between tandem wheels with their longitudinal axis parallel, said chocks when so positioned having their side surfaces in line contact with the ground with at least a portion of the side surface of each chock making substantially line contact with one wheel, and means extending between the chocks to move the chocks apart into line contact with the wheels, said means comprising an arm fixedly secured to one of said chocks, a seAt on the outer end of said arm, a bar mounted on the other of said chocks, the outer end of said bar being seated in said seat.
Claim 2
Dependent Claim
121 words
A chock assembly for placing between two tandem wheels to hold the wheels from rolling, comprising two cylindrical chocks for positioning between tandem wheels with their longitudinal axis parallel, said chocks when so positioned having their side surfaces in line contact with the ground with at least a portion of the side surface of each chock making substantially line contact with one wheel, and means extending between the chocks to move the chocks apart into line contact with the wheels, said means comprising an arm fixedly secured to one of said chocks, a seAt on the outer end of said arm, a bar mounted on the other of said chocks, the outer end of said bar being seated in said seat.
Claim 3
Dependent Claim
26 words
A chock assembly as recited in claim 1, and said bar being threaded into the other said chock to adjust said bar relative to said seat.
Claim 4
Dependent Claim
30 words
A chock assembly as recited in claim 1, and a loop on the outer end of said arm, said loop providing a hand hold to actuate the arm and bar.
Claim 5
Dependent Claim
47 words
A chock assembly as recited in claim 1, said bar being threaded into the other said chock to adjust said bar relative to said seat, and a loop on the outer end of said arm, said loop providing a hand hold to actuate the arm and bar.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |