US2702162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering treated fibrous material
Assignee: Victor Manufacturing and Gasket Co
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Filing: 1952-03-29
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Granted: 1955-02-15
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Expires: 1972-03-29
Abstract
No abstract record available.
Inventors
- 👤 Stephen M Lillis
- 👤 John C Toman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:24
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B03B9/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
THE METHOD OF RECOVERING, FOR REUSE, THE METAL AND TREATED ASBESTOS FIBERS FROM WASTE GASKET MATERIAL IN WHICH THE ASBESTOS IS FIXED TO BOTH FACES OF A SHEET OF METAL, COMPRISING: PULVERIZING THE WASTE TO GRIND THE METAL INTO SMALL BITS; AERATING THE WASTE TO FLUFF THE FIBROUS CONSTITUENT THEREOF; ADDING WATER TO THE PULVERIZED WASTE TO FORM A SLURRY HAVING FROM 88 TO 92% WATER CONTENT AGITATING THE SLURRY MODERATELY FOR A PERIOD LONG ENOUGH TO FREE THE FIBERS FROM THE METAL, BUT LESS THAN THE TIME REQUIRED TO SATURATE THE FIBERS; ALLOWING THE SLURRY TO COME TO REST TO PERMIT THE METAL TO FALL TO THE BOTTOM AND THE FIBERS TO RISE TO THE TOP; DECANTING THE FIBERS AND A PART OF THE WATER FROM THE METAL AND REMAINDER OF THE WATER; SEPARATING THE METAL FROM THE WATER; AND PASSING THE DECANTED WATER AND FIBERS OVER A RIFFLE AND MAGNET TO REMOVE THEREFROM ANY METAL ENTRAINED THEREIN.
Claim 2
Independent Claim
159 words
THE METHOD OF RECOVERING, FOR REUSE, THE METAL AND TREATED ASBESTOS FIBERS FROM WASTE GASKET MATERIAL IN WHICH THE ASBESTOS IS FIXED TO BOTH FACES OF A SHEET OF METAL, COMPRISING: PULVERIZING THE WASTE TO GRIND THE METAL INTO SMALL BITS; AERATING THE WASTE TO FLUFF THE FIBROUS CONSTITUENT THEREOF; ADDING WATER TO THE PULVERIZED WASTE TO FORM A SLURRY HAVING FROM 88 TO 92% WATER CONTENT AGITATING THE SLURRY MODERATELY FOR A PERIOD LONG ENOUGH TO FREE THE FIBERS FROM THE METAL, BUT LESS THAN THE TIME REQUIRED TO SATURATE THE FIBERS; ALLOWING THE SLURRY TO COME TO REST TO PERMIT THE METAL TO FALL TO THE BOTTOM AND THE FIBERS TO RISE TO THE TOP; DECANTING THE FIBERS AND A PART OF THE WATER FROM THE METAL AND REMAINDER OF THE WATER; SEPARATING THE METAL FROM THE WATER; AND PASSING THE DECANTED WATER AND FIBERS OVER A RIFFLE AND MAGNET TO REMOVE THEREFROM ANY METAL ENTRAINED THEREIN.
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) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |