US3883996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tread grinding wheel
Assignee: Amsted Industries Inc
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Filing: 1974-01-07
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Granted: 1975-05-20
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Expires: 1994-01-07
Abstract
Abstract A tire tread grinding wheel comprising a pair of hub sections having peripheral wedging flanges on which an abrading sleeve is mounted. The hub sections include orientation and aligning means permitting assembly and disassembly of the wheel unit either on or separate from the grinding equipment. The wedging flanges are ground so that the sleeve is forced into true round as the hub segments are drawn into secured relationship.
Inventors
- 👤 Gustav M Waller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:19
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/16; B24B; B24B45/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
195 words
A grinding wheel assembly for a tire tread grinding apparatus having a drive shaft, said grinding wheel assembly comprising a first hub section, first fastening means for directly fastening said first hub section to the drive shaft for rotation therewith, a second hub section, second fastening means for fastening said second hub section only to said first hub section, each of said fastening means being exposed and accessible for independent disassembly, complementary aligning and orientating means for axially aligning and angularly orienting said first and second hub sections thereby to maintain said hub sections in the same alignment and orientation upon re-assembly of said hub sections after said hub sections are dis-assembled, said hub sections each having oppositely directed peripheral flanges having taper wedging surfaces, said tapered wedging surfaces being formed to provide a circumference in true round about the axis of rotation of the drive shaft, and sleeve means having a circumferential abrading surface, said sleeve means being secured on said hub sections for rotation therewith with said abrading surface in a true round about the axis of rotation when said fastening means are drawn tight to fasten said first section and second sections.
Claim 2
Dependent Claim
195 words
A grinding wheel assembly for a tire tread grinding apparatus having a drive shaft, said grinding wheel assembly comprising a first hub section, first fastening means for directly fastening said first hub section to the drive shaft for rotation therewith, a second hub section, second fastening means for fastening said second hub section only to said first hub section, each of said fastening means being exposed and accessible for independent disassembly, complementary aligning and orientating means for axially aligning and angularly orienting said first and second hub sections thereby to maintain said hub sections in the same alignment and orientation upon re-assembly of said hub sections after said hub sections are dis-assembled, said hub sections each having oppositely directed peripheral flanges having taper wedging surfaces, said tapered wedging surfaces being formed to provide a circumference in true round about the axis of rotation of the drive shaft, and sleeve means having a circumferential abrading surface, said sleeve means being secured on said hub sections for rotation therewith with said abrading surface in a true round about the axis of rotation when said fastening means are drawn tight to fasten said first section and second sections.
Claim 3
Dependent Claim
35 words
The invention as defined in claim 1 wherein said aligning means comprises an axial boss on said first hub section and an axial opening on said second hub section in which said boss is received.
Claim 4
Dependent Claim
28 words
The invention as defined in claim 1 wherein said angular orientation means comprises a dowel seated in complementary aligned openings formed in said first and second hub sections.
Claim 5
Dependent Claim
19 words
The invention as defined in claim 3 wherein said second fastening means is radially spaced from said axial boss.
Claim 6
Dependent Claim
26 words
The inventIon as defined in claim 4 wherein said first fastening means for fastening said first hub section to the drive shaft extend through said boss.
Claim 7
Dependent Claim
23 words
The invention as defined in claim 4 wherein the inside circumference of said sleeve is tapered complementary to the taper of said flanges.
Claim 8
Dependent Claim
27 words
The invention as defined in claim 6 wherein said taper of said flanges converges at an angle of about 9* with the longitudinal axis of the wheel.
References Cited (Backward Citations)
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Cited
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US2083793A
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US3522676A
Cited
US3646711A
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US3698141A
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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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |