Patent US1619090A successfully refreshed from Google Patents.
US3308945A
Expired / Lapsed
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⏱️ 0.0 years remaining
Method and apparatus for de-shotting and separating mineral fiber
Assignee: Wood Conversion Co
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Filing: 1964-01-13
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Granted: 1967-03-14
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Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 Wayne J Oja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:20
CPC Classifications
D; D01; D01G; D01G9/00; C; C03; C03B; C03B37/00; C03B37/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
APPARATUS FOR REMOVING SHOT FROM THE ENDS OF NODULATED AND NON-NODULATED MINERAL FIBER COMPRISING AT LEAST ONE PAIR OF PARALLEL CYLINDRICAL ROTORS ON PARALLEL AXES, EACH ROTOR OF THE PAIR HAVING AN INNER CYLINDRICAL AXIAL ROLL SPACED FROM A CORRESPONDING AXIAL ROLL OF THE OTHER ROTOR, EACH ROTOR OF THE PAIR HAVING A BRUSH-LIKE MULTIPLICITY OF RADIALLY PROJECTING ELEMENTS EXTENDING FROM ITS ROLL, THE ENDS OF SAID ELEMENTS OF THE PAIR PROVIDING OVERLAPPING CYLINDRICAL PATHS OF REVOLUTION WHICH PATHS FORM AN OBSTRUCTED NIP, MEANS TO ROTATE ONE OF SAID ROTORS OF THE PAIR IN A FEEDING DIRECTION INTO THE NIP OF THE PAIR AT A RELATIVELY SLOW SPEED TO SERVE AS A ROTARY HOLDER AND FEEDER FOR THE MATERIAL FED TO THE PAIR FOR FORMING A SUPPLY AHEAD OF THE NIP, MEANS TO ROTATE THE OTHER ROTOR OF THE PAIR IN THE OPPOSITE DIRECTION AT A
Claim 2
Dependent Claim
146 words
APPARATUS FOR REMOVING SHOT FROM THE ENDS OF NODULATED AND NON-NODULATED MINERAL FIBER COMPRISING AT LEAST ONE PAIR OF PARALLEL CYLINDRICAL ROTORS ON PARALLEL AXES, EACH ROTOR OF THE PAIR HAVING AN INNER CYLINDRICAL AXIAL ROLL SPACED FROM A CORRESPONDING AXIAL ROLL OF THE OTHER ROTOR, EACH ROTOR OF THE PAIR HAVING A BRUSH-LIKE MULTIPLICITY OF RADIALLY PROJECTING ELEMENTS EXTENDING FROM ITS ROLL, THE ENDS OF SAID ELEMENTS OF THE PAIR PROVIDING OVERLAPPING CYLINDRICAL PATHS OF REVOLUTION WHICH PATHS FORM AN OBSTRUCTED NIP, MEANS TO ROTATE ONE OF SAID ROTORS OF THE PAIR IN A FEEDING DIRECTION INTO THE NIP OF THE PAIR AT A RELATIVELY SLOW SPEED TO SERVE AS A ROTARY HOLDER AND FEEDER FOR THE MATERIAL FED TO THE PAIR FOR FORMING A SUPPLY AHEAD OF THE NIP, MEANS TO ROTATE THE OTHER ROTOR OF THE PAIR IN THE OPPOSITE DIRECTION AT A
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |