Patent US4377038A successfully refreshed from Google Patents.
US4377038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truck wheel clamp with floating spindle plate
Assignee: Snap On Inc
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Filing: 1981-02-19
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Granted: 1983-03-22
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Expires: 2001-02-19
Abstract
Abstract A wheel clamp is disclosed for supporting a wheel aligning tool in a plane generally parallel to the plane of the wheel. The wheel clamp comprises two assemblies. The first assembly is a clamping frame which grasps the tire at three points along its periphery to provide firm attachment of the clamp to the wheel. The second assembly is a floating frame which actually supports the wheel aligning tool. Three pins extend inward from the floating frame and contact the wheel rim to ensure that the floating frame lies parallel to the plane of the wheel rim. A thumb screw is provided to secure the floating frame to the clamping frame.
Inventors
- 👤 Marshall P. Ragan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/24; G01B5/255; G01B21/00; G01B21/22; G01B21/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A wheel clamp for supporting a wheel aligning tool in a plane parallel to the plane of a wheel, said wheel including both a tire and a rim, comprising: a first frame; means attached to the first frame for firmly grasping the periphery of the tire; a second frame for supporting the wheel aligning tool; means attached to the second frame for maintaining the plane of said second frame parallel to the plane of the wheel, whereby the aligning tool is supported in a plane parallel to the plane of the wheel; and means for permitting pivotal movement of the second frame into non-parallel relationship with said first frame and for securing the second frame thereafter in fixed position relative to the first frame when the second frame is in said plane parallel to the plane of the wheel.
Claim 2
Dependent Claim
139 words
A wheel clamp for supporting a wheel aligning tool in a plane parallel to the plane of a wheel, said wheel including both a tire and a rim, comprising: a first frame; means attached to the first frame for firmly grasping the periphery of the tire; a second frame for supporting the wheel aligning tool; means attached to the second frame for maintaining the plane of said second frame parallel to the plane of the wheel, whereby the aligning tool is supported in a plane parallel to the plane of the wheel; and means for permitting pivotal movement of the second frame into non-parallel relationship with said first frame and for securing the second frame thereafter in fixed position relative to the first frame when the second frame is in said plane parallel to the plane of the wheel.
Claim 3
Dependent Claim
141 words
A wheel clamp for supporting a wheel aligning tool in a plane parallel to the plane of a wheel, said wheel including both a tire and a rim, comprising: a first frame; means attached to the first frame for firmly grasping the periphery of the tire; a second frame for supporting the wheel aligning tool, said second frame being free to move relative to the first frame; three spacer pins attached to the second frame which engage the wheel rim at angularly spaced positions for maintaining the plane of said second frame parallel to the plane of the wheel, whereby the aligning tool is supported in a plane parallel to the plane of the wheel; and means for securing the second frame to the first frame when the second frame is in said plane parallel to the plane of the wheel.
Claim 4
Dependent Claim
141 words
A wheel clamp for supporting a wheel aligning tool in a plane parallel to the plane of a wheel, said wheel including both a tire and a rim, comprising: a first frame; means attached to the first frame for firmly grasping the periphery of the tire; a second frame for supporting the wheel aligning tool, said second frame being free to move relative to the first frame; three spacer pins attached to the second frame which engage the wheel rim at angularly spaced positions for maintaining the plane of said second frame parallel to the plane of the wheel, whereby the aligning tool is supported in a plane parallel to the plane of the wheel; and means for securing the second frame to the first frame when the second frame is in said plane parallel to the plane of the wheel.
Claim 5
Dependent Claim
26 words
The wheel clamp as in claim 2, wherein said pins are adjustably mounted on the second frame so as to accommodate wheel rims of different diameter.
Claim 6
Dependent Claim
136 words
A wheel clamp for supporting a wheel aligning tool in a plane parallel to the plane of a wheel, said wheel including both a tire and a rim, comprising: a first frame; three tire-engaging fingers attached to the first frame; means for constricting the three tire-engaging fingers about the periphery of the tire, whereby the first frame can be secured to the wheel; a second frame for supporting the wheel aligning tool, said second frame being free to pivot relative to the first frame; three spacer pins mounted on the second frame for engaging the wheel rim, whereby the plane of the second frame can be maintained parallel to the plane of the wheel; and means for rigidly securing the second frame to the first frame when all three spacer pins engage the wheel rim simultaneously.
Claim 7
Dependent Claim
136 words
A wheel clamp for supporting a wheel aligning tool in a plane parallel to the plane of a wheel, said wheel including both a tire and a rim, comprising: a first frame; three tire-engaging fingers attached to the first frame; means for constricting the three tire-engaging fingers about the periphery of the tire, whereby the first frame can be secured to the wheel; a second frame for supporting the wheel aligning tool, said second frame being free to pivot relative to the first frame; three spacer pins mounted on the second frame for engaging the wheel rim, whereby the plane of the second frame can be maintained parallel to the plane of the wheel; and means for rigidly securing the second frame to the first frame when all three spacer pins engage the wheel rim simultaneously.
Claim 8
Dependent Claim
30 words
A wheel clamp as in claim 4, wherein the position of each of the three spacer pins upon the second frame is adjustable to accommodate wheel rims of different diameters.
Claim 9
Dependent Claim
43 words
A wheel clamp as in claim 4, wherein the means for securing the second frame to the first frame is a thumb screw arranged to be threaded into said first frame and being received through a slightly oversized aperture in said second frame.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |