US3384309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of metal from rubber
Assignee: North British Rubber Co Ltd
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Filing: 1965-12-27
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Granted: 1968-05-21
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 James E F Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:56
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/02; B29B17/04; B29B17/0412; B29B2017/0213; B29B2017/0268; B29B2017/0272; B29K; B29K2705/00; B29K2705/08; B29K2705/12; B29L; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/52; Y02W30/62; Y10; Y10S; Y10S241/00; Y10S241/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR THE SEPARATION OF METAL FROM RUBBER INCLUDING THE STEPS OF GRANULATING THE RUBBER INTO A CRUMB, CLASSIFYING THE GRANULATED RUBBER INTO AN OVERSIZE CRUMB WHICH IS RETURNED TO THE GRAUNULAR AND AN UNDERSIZE CRUMB WHICH IS SUBJECTED TO A LOW INTENSITY MAGNETIC FIELD WHICH SEPARATES WIRE, AND CRUMB HAVING LARGE WIRE INCLUSION, FROM THE REMAINDER OF THE CRUMB HAVING SMALL WIRE INCLUSION, SIZING SAID REMAINDER TO TWO FRACTINS, SUBJECTING THE LARGER FRACTION TO A HIGH INTENSITY MAGNETIC FIELD WHICH REMOVES THE CRUMB HAVING SMALL WIRE INCLUSION AND DISCHARGING THE CLEAN, METAL-FREE CRUMB.
Claim 2
Dependent Claim
95 words
A PROCESS FOR THE SEPARATION OF METAL FROM RUBBER INCLUDING THE STEPS OF GRANULATING THE RUBBER INTO A CRUMB, CLASSIFYING THE GRANULATED RUBBER INTO AN OVERSIZE CRUMB WHICH IS RETURNED TO THE GRAUNULAR AND AN UNDERSIZE CRUMB WHICH IS SUBJECTED TO A LOW INTENSITY MAGNETIC FIELD WHICH SEPARATES WIRE, AND CRUMB HAVING LARGE WIRE INCLUSION, FROM THE REMAINDER OF THE CRUMB HAVING SMALL WIRE INCLUSION, SIZING SAID REMAINDER TO TWO FRACTINS, SUBJECTING THE LARGER FRACTION TO A HIGH INTENSITY MAGNETIC FIELD WHICH REMOVES THE CRUMB HAVING SMALL WIRE INCLUSION AND DISCHARGING THE CLEAN, METAL-FREE CRUMB.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |