US4031983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire chock
Assignee: Individual
•
Filing: 1976-06-14
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Granted: 1977-06-28
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Expires: 1996-06-14
Abstract
Abstract The tire chock of the subject application is comprised of a wedge element and a frame. The wedge element prevents rolling of the tire in the direction of the chock and the frame element secures the wedge element to the tire to prevent the wedge from moving away from the tire and to prevent rotation of the tire with respect to the wedge.
Inventors
- 👤 Peter S. Lentini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:42
CPC Classifications
B; B60; B60T; B60T3/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
261 words
A wheel chock for preventing inadvertent movement of a wheel rotatably mounted on an axis comprising: (a) a base member having a wheel-engaging element for engaging the circumferential periphery of said wheel and being of sufficient height to prevent wheel rotation about said axis; (b) a frame mounted on said base member comprising at least two releasable gripping arms, an adjusting rod, means for movably securing said arms to said rod; and gripping arms anchoring means; said adjusting rod being disposed at a greater distance from said axis than the circumferential periphery of said wheel and being essentially parallel to the axis of said wheel when said wheel engaging element is abutting the outer circumference of said wheel; each of said gripping arms having a proximal end and a distal end; said gripping arms extending radially inwardly of the circumferential periphery of said wheel in unsupported and unconnected embrace of said wheel at opposite sides thereof when said wheel-engaging element is abutting the outer circumference of said wheel; said distal ends extending beyond said wheel-engaging element toward the axis of said wheel when said wheel-engaging element is abutting the outer circumference of said wheel; said rod in cooperation with said securing means being adapted to alter the separation between said distal ends of said arms for the purposes of engaging and disengaging said wheel; and said proximal ends of said gripping arms being axially movable with respect to each other whereby the separation between said proximal ends is variable to permit adjustment of said frame to accommodate different sizes of tire.
Claim 2
Dependent Claim
261 words
A wheel chock for preventing inadvertent movement of a wheel rotatably mounted on an axis comprising: (a) a base member having a wheel-engaging element for engaging the circumferential periphery of said wheel and being of sufficient height to prevent wheel rotation about said axis; (b) a frame mounted on said base member comprising at least two releasable gripping arms, an adjusting rod, means for movably securing said arms to said rod; and gripping arms anchoring means; said adjusting rod being disposed at a greater distance from said axis than the circumferential periphery of said wheel and being essentially parallel to the axis of said wheel when said wheel engaging element is abutting the outer circumference of said wheel; each of said gripping arms having a proximal end and a distal end; said gripping arms extending radially inwardly of the circumferential periphery of said wheel in unsupported and unconnected embrace of said wheel at opposite sides thereof when said wheel-engaging element is abutting the outer circumference of said wheel; said distal ends extending beyond said wheel-engaging element toward the axis of said wheel when said wheel-engaging element is abutting the outer circumference of said wheel; said rod in cooperation with said securing means being adapted to alter the separation between said distal ends of said arms for the purposes of engaging and disengaging said wheel; and said proximal ends of said gripping arms being axially movable with respect to each other whereby the separation between said proximal ends is variable to permit adjustment of said frame to accommodate different sizes of tire.
Claim 3
Dependent Claim
26 words
The wheel chock of claim 1 wherein said base is a solid block of rigid material and said wheel-engaging element is a face of said block.
Claim 4
Dependent Claim
34 words
The wheel chock of claim 2 wherein said anchoring means comprises (a) an anchor rod essentially parallel to said adjusting rod; and (b) means for moveably securing said gripping arms to said anchor rod.
Claim 5
Dependent Claim
20 words
The wheel chock of claim 3 wherein said adjusting rod is located between said anchor rod and said wheel axis.
Claim 6
Dependent Claim
54 words
The wheel chock of claim 2 wherein means are provided for rotating said adjusting rod and wherein said adjusting rod securing means comprises: (a) external threads of opposite hand on the ends of said rod; and (b) an internally threaded aperture through each of said arms engaging said external threads on said adjusting rod.
Claim 7
Dependent Claim
55 words
The wheel chock of claim 3 wherein means are provided for rotating said adjusting rod and wherein said adjusting rod securing means comprises: (a) external threads of opposite hand on the ends of said adjusting rod; and (b) an internally threaded aperture through each of said arms engaging said external threads on said adjusting rod;
Claim 8
Dependent Claim
62 words
The wheel chock of claim 6 wherein said anchor rod securing means comprises: (a) an aperture through the proximal end of each of said arms, of a diameter greater than the external diameter of said anchor rod; and (b) enlarged shoulder means at the extremities of said anchor rod to prevent withdrawal of said anchor rod extremities from said proximal-end arm apertures.
Claim 9
Dependent Claim
43 words
The wheel chock of claim 2 wherein said distal ends of said arms are shaped to engage said wheel when said ends approach each other and to prevent retraction of said wheel from said wheel-engaging face when said distal ends engage said wheel.
Claim 10
Dependent Claim
14 words
The wheel chock of claim 2 wherein said wheel-engaging face has a concave curvature.
Claim 11
Dependent Claim
46 words
The wheel chock of claim 6 wherein: (a) said base block has a passage therethrough; (b) said adjusting rod passes through and is rotatable within said base block passage; and (c) keeper means are provided to prevent withdrawal of said adjustment rod from said base block.
Claim 12
Dependent Claim
67 words
The wheel chock of claim 10 wherein said keeper means comprises: (a) an enlarged diameter center portion of said adjusting rod intermediate said threaded end portions; and (b) retainer bars having apertures therethrough of diameter intermediate between said adjusting rod center section diameter and said threaded end portions diameter secured to said base block so that said retainer bar apertures are coaxial with said base block passage.
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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |