US4405090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for reducing tires
Assignee: TIRE RECLAMATION EQUIPMENT COMPANY 1579 NORTH TOPPING KN CITY MO A MO CORP
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Filing: 1980-10-06
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Granted: 1983-09-20
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Expires: 2000-10-06
Abstract
Abstract A method and apparatus for reducing worn out automobile and truck tires to useful particles of rubber and steel. The apparatus includes a conveyor which carries the tires through a cutting mechanism in the form of a pair of transverse saw blades and a single longitudinal saw blade. The saw blades cut each tire into four pieces which are fed down an inclined chute against the abrasive surface of a grinding wheel. The tire pieces are ground by the wheel into small particles of rubber and steel which are separated from one another by a magnetic conveyor.
Inventors
- 👤 Dale Wakeem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:00
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/02; B23; B23D; B23D45/00; B23D45/003; B23D45/10; B23D45/102; B29B17/04; B29B17/0412; B29B2017/0424; B29B2017/0484; B29K; B29K2021/00; B29K2705/00; B29K2705/08; B29K2705/12; B29L; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S241/00; Y10S241/31; Y10S83/00; Y10S83/923; Y10T; Y10T83/00; Y10T83/647; Y10T83/6476; Y10T83/6489; Y10T83/6491
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
181 words
A method of reducing a tire having rubber and metal content, said method comprising the steps of: conveying the tire along a conveyor path to a first cutting station; effecting a first pair of cuts through opposite sides of the tire at said first cutting station to cut the tire into a pair of arcuate pieces approximately equal in size without human assistance; conveying the arcuate pieces from said first cutting station to a second cutting station; effecting a cut through each of said arcuate pieces at said second cutting station, each cut at said second cutting station being made without human assistance in a direction generally perpendicular to the first pair of cuts and at a location approximately halfway along the arc defined by each arcuate piece, thereby cutting the tire into four pieces approximately equal in size; conveying the tire pieces from said second cutting station to a grinding station; grinding each tire piece into small particles of rubber and small particles of metal at said grinding station; and separating the particles of rubber from the particles of metal.
Claim 2
Independent Claim
181 words
A method of reducing a tire having rubber and metal content, said method comprising the steps of: conveying the tire along a conveyor path to a first cutting station; effecting a first pair of cuts through opposite sides of the tire at said first cutting station to cut the tire into a pair of arcuate pieces approximately equal in size without human assistance; conveying the arcuate pieces from said first cutting station to a second cutting station; effecting a cut through each of said arcuate pieces at said second cutting station, each cut at said second cutting station being made without human assistance in a direction generally perpendicular to the first pair of cuts and at a location approximately halfway along the arc defined by each arcuate piece, thereby cutting the tire into four pieces approximately equal in size; conveying the tire pieces from said second cutting station to a grinding station; grinding each tire piece into small particles of rubber and small particles of metal at said grinding station; and separating the particles of rubber from the particles of metal.
Claim 3
Dependent Claim
85 words
A method as set forth in claim 1, wherein said step of effecting a first pair of cuts comprises effecting the first pair of cuts through the tire in a direction generally transverse to its direction of travel along the conveyor path at said first cutting station, and said step of effecting a cut through each of said arcuate pieces comprises cutting through each arcuate piece in a direction generally parallel to its direction of travel along the conveyor path at said second cutting station.
Claim 4
Dependent Claim
22 words
A method as set forth in claim 1, wherein said grinding step comprises directing the tire pieces against a moving abrasive surface.
Claim 5
Dependent Claim
34 words
A method as set forth in claim 3, wherein said abrasive surface moves in a substantially vertical plane and the tire pieces are directed against the abrasive surface in a direction inclined from horizontal.
References Cited (Backward Citations)
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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) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |