US2767149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of production of reclaimed rubber in discrete particle form
Assignee: U S Rubber Reclaiming Co Inc
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Filing: 1952-12-19
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Granted: 1956-10-16
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Expires: 1972-12-19
Abstract
No abstract record available.
Inventors
- 👤 Benjamin R Wendrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:42
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/0026; B29K; B29K2021/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S425/00; Y10S425/101
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
A PROCESS OF SUBDIVIDING RECLAIMED RUBBER AS IT COMES FROM A RECLAIMING APPARATUS WHICH DELIVERS THE RUBBER BY EXTRUDING IT THROUGH A NARROW ORIFICE AT A TEMPERATURE OF FROM 300* F. TO 500* F., ADDING TO THE HOT RECLAIM IN THE RELATIVELY MASSIVE FORM IN WHICH IT COMES FROM THE RECLAIMING STEP A PARTICLE-SEPARATING POWDER, IMMEDIATELY TUMBLING THE MATERIAL WITHOUT COMPACTION OR MASTICATION OF THE MASS OF MATERIAL, WHEREBY THE TUMBLING WILL BREAK UP THE MATERIAL INTO FINE PARTICLES AND APPLY THE PARTICLE-SEPARATING POWDER ONTO THE SURFACES FORMED IN THE BREAKS, AND COOLING DURING THE COURSE OF THE TUMBLING.
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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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |