US3721392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire grinding feed device
Assignee: Lyons Ind Inc
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Filing: 1971-03-01
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Granted: 1973-03-20
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Expires: 1991-03-01
Abstract
Abstract A tire grinding device comprising conveyor means for feeding a row of tires along a path of travel with converging feed roll means disposed adjacent one end of the conveyor means for squeezing a tire therebetween in a relatively flat configuration, and grinding means disposed adjacent one side of said feed roll means for pulverizing and grinding the tire as it is continuously fed between said feed roll means. The apparatus is provided with support means adjacent the lower portion of the feed roll means to support the edge of the tire as it is being pulverized by the grinding means.
Inventors
- 👤 S Burwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:29
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/04; B02; B02C; B02C19/00; B02C19/0056; B02C19/20; B02C2201/00; B02C2201/04; B29L; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
69 words
An apparatus for grinding tires and the like, comprising grinding means, means for feeding tires against said grinding means, support means disposed between said grinding means and feed means to support a portion of a tire feed therebetween, including the improvement of means for raising and lowering said support means to move it to an uppermost position and to a lowermost position from between said grinding and feeding means.
Claim 2
Independent Claim
69 words
An apparatus for grinding tires and the like, comprising grinding means, means for feeding tires against said grinding means, support means disposed between said grinding means and feed means to support a portion of a tire feed therebetween, including the improvement of means for raising and lowering said support means to move it to an uppermost position and to a lowermost position from between said grinding and feeding means.
Claim 3
Independent Claim
84 words
An apparatus for grinding tires and the like, comprising grinding means, means for feeding tires against said grinding means, including power roller means comprising a plurality of spaced apart rollers disposed in pairs in a direction converging toward said grinding means and carried by spaced apart frames, support means provided adjacent the converging end of said rollers to support a tire gripped therebetween, including the improvement of ram means for raising and lowering said support means to an uppermost position closest to said rollers.
Claim 4
Independent Claim
84 words
An apparatus for grinding tires and the like, comprising grinding means, means for feeding tires against said grinding means, including power roller means comprising a plurality of spaced apart rollers disposed in pairs in a direction converging toward said grinding means and carried by spaced apart frames, support means provided adjacent the converging end of said rollers to support a tire gripped therebetween, including the improvement of ram means for raising and lowering said support means to an uppermost position closest to said rollers.
Claim 5
Dependent Claim
31 words
The apparatus of claim 2 wherein said grinding means is an endless belt sander disposed adjacent a pair of rollers spaced closer together than some other of said pairs of rollers.
Claim 6
Dependent Claim
25 words
The apparatus of claim 3 wherein said belt sander and support means extend parallel with said rollers and substantially the full width of said rollers.
Claim 7
Dependent Claim
23 words
The apparatus of claim 3 wherein platen means are provided adjacent the belt sander when said power rollers feed a tire against it.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |