Patent US5403881A successfully refreshed from Google Patents.
Patent US3687238A successfully refreshed from Google Patents.
US3687238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking wheel chocks for vehicles
Assignee: Individual
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Filing: 1970-10-08
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Granted: 1972-08-29
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Expires: 1990-10-08
Abstract
Abstract Locking wheel chocks for an automotive vehicle wheel consisting of a pair of wedges adapted to be disposed respectively for and aft of said wheel, in engagement with the ground surface and confronting the periphery of the wheel, a connector joining said wedges and adapted to extend alongside said wheel, a mechanism for shortening said connector whereby said wedges are driven tightly between said wheel periphery and said road surface, and a key-operated locking device for securing said connector releasably at any desired degree of extension, and for securing said chock device to said wheel.
Inventors
- 👤 Walter C Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:32
CPC Classifications
B; B60; B60T; B60T3/00; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/402; Y10T70/409
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
177 words
A set of wheel chocks for an automotive vehicle comprising: a. a pair of wedges adapted to be rested on the road surface respectively fore and aft of a vehicle wheel with their apeces confronting each other, and b. an elongated connector extending between and interconnecting said wedges, said connector being disposed at one lateral side of said wedges whereby to extend alongside said wheel, and comprising a pair of elongated bars slidably telescoped together and having their extended ends affixed respectively to said wedges, a toggle lever pivoted to one of said bars on an axis transverse thereto, and a toggle link pivoted at one end to said lever in spaced relation from the pivot of said lever, and at its opposite end to the other of said bars, at selective points spaced longitudinally therealong, whereby pivotal movement of said lever telescopes said bars to change the spacing between said wedges, the pivots of said toggle lever and said toggle link having an aligned, dead-center relation with said lever pivot intermediate the pivots of said link.
Claim 2
Dependent Claim
177 words
A set of wheel chocks for an automotive vehicle comprising: a. a pair of wedges adapted to be rested on the road surface respectively fore and aft of a vehicle wheel with their apeces confronting each other, and b. an elongated connector extending between and interconnecting said wedges, said connector being disposed at one lateral side of said wedges whereby to extend alongside said wheel, and comprising a pair of elongated bars slidably telescoped together and having their extended ends affixed respectively to said wedges, a toggle lever pivoted to one of said bars on an axis transverse thereto, and a toggle link pivoted at one end to said lever in spaced relation from the pivot of said lever, and at its opposite end to the other of said bars, at selective points spaced longitudinally therealong, whereby pivotal movement of said lever telescopes said bars to change the spacing between said wedges, the pivots of said toggle lever and said toggle link having an aligned, dead-center relation with said lever pivot intermediate the pivots of said link.
Claim 3
Dependent Claim
38 words
The structure as recited in claim 1 wherein said bars are substantially inelastic longitudinally thereof, but are formed of material sufficiently resilient that said connector may yield resiliently in torsion about its longitudinal axis, and in transverse flexure.
Claim 4
Dependent Claim
29 words
The structure as recited in claim 1 with the addition of locking means independent of said toggle members and operable to lock said bars positively against telescoping relative movement.
Claim 5
Dependent Claim
104 words
The structure as recited in claim 3 wherein said locking means comprises a padlock the hasp of which is operable to be inserted through matching holes formed in said bars in the telescoped portions thereof, and with the addition of a linked chain adapted to be passed over a rigid portion of said vehicle adjacent the inner face of said wheel, its end portions passed respectively fore and aft of said wheel to the outer face of said wheel, and its end links secured in the hasp of said padlock, said connector and said padlock being disposed adjacent the outer face of said wheel.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |