US3145430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Felter head and agitator
Assignee: Weyerhaeuser Co
•
Filing: 1960-12-14
•
Granted: 1964-08-25
•
Expires: 1980-12-14
Abstract
No abstract record available.
Inventors
- 👤 Philip E Caron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:32
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A FELTER HEAD COMPRISING A HOUSING HAVING AN INLET, SIDE WALLS AND A CURVED APERTURED OUTLET, A ROTOR IN SAID HOUSING COMPRISING A SHAFT ROTATABLY MOUNTED IN SAID HOUSING SIDE WALLS AND EXTENDING THROUGH SAID HOUSING, SAID SHAFT HAVING A PAIR OF SIDE PLATES MOUNTED THEREON TRANSVERSELY THEREOF, EACH OF SAID SIDE PLATES BEING WITHIN SAID HOUSING AND ADJACENT ITS RESPECTIVE SAID HOUSING SIDE WALL, BRUSH UNITS EXTENDING BETWEEN AND PERIPHERALLY OF SAID SIDE PLATES TO MOVE IN A PATH COINCIDING WITH SAID OUTLET, AND A TUBULAR MEMBER EXTENDING BETWEEN SAID SIDE PLATES AND SURROUNDING SAID SHAFT AND SPACED RADIALLY INWARDLY FROM SAID BRUSH UNITS AND SUBSTANTIALLY ENCLOSING THE DEAD AIR SPACE SURROUNDING SAID SHAFT.
Claim 2
Dependent Claim
115 words
A FELTER HEAD COMPRISING A HOUSING HAVING AN INLET, SIDE WALLS AND A CURVED APERTURED OUTLET, A ROTOR IN SAID HOUSING COMPRISING A SHAFT ROTATABLY MOUNTED IN SAID HOUSING SIDE WALLS AND EXTENDING THROUGH SAID HOUSING, SAID SHAFT HAVING A PAIR OF SIDE PLATES MOUNTED THEREON TRANSVERSELY THEREOF, EACH OF SAID SIDE PLATES BEING WITHIN SAID HOUSING AND ADJACENT ITS RESPECTIVE SAID HOUSING SIDE WALL, BRUSH UNITS EXTENDING BETWEEN AND PERIPHERALLY OF SAID SIDE PLATES TO MOVE IN A PATH COINCIDING WITH SAID OUTLET, AND A TUBULAR MEMBER EXTENDING BETWEEN SAID SIDE PLATES AND SURROUNDING SAID SHAFT AND SPACED RADIALLY INWARDLY FROM SAID BRUSH UNITS AND SUBSTANTIALLY ENCLOSING THE DEAD AIR SPACE SURROUNDING SAID SHAFT.
References Cited (Backward Citations)
US968820A
Cited
US1584077A
Cited
US2931076A
Cited
US2940134A
Cited
US2748429A
Cited
US2738557A
Cited
US2940135A
Cited
US2827668A
Cited
US3056173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |