Fiber opener
Abstract
Abstract A MACHINE FOR OPENING OR GRINDING WASTE OR NEW FIBERS OR THE LIKE IN WHICH THE FIBERS TO BE OPENED ARE FED BETWEEN TWO OPPOSITELY ROTATING FEED ROLLS, WHICH ARE SPRING BIASED TOWARDS EACH OTHER. IF ASBESTOS FIBERS ARE BEING OPENED, THE SURFACES OF THE FEED ROLLS ARE FLUTED, OTHERWISE THE SURFACES OF THE FEED ROLLS HAVE TEETH FOR USE WITH OTHER TYPES OF FIBERS. THE FEED ROLLS SERVE TO HOLD THE FIBERS WHILE MOVING THEM FORWARD TO BE TORN AT AND OPENED BY THE TEETH ON AN OPENING CYLINDER OF THE LICKER-IN TYPE. IN THE CASE WHERE TEETH ARE USED ON THE FEED ROLLS, THE TEETH ON ONE FEED ROLL ACT TO HOLD ONTO THE FIBERS WHILE THE TEETH ON THE OTHER FEED ROLL CLEAN THE SPACES BETWEEN THE TEETH ON THE FIRST FEED ROLL AND THE OPENING CYLINDER PULLS THE FIBERS APART. THE TEETH ON THE OPENING CYLINDER ARE AT AN ANGLE WHICH CAUSES SELFDOFFING TO TAKE PLACE WITHIN ONE REVOLUTION OF THE OPENING CYLINDER. A CUT-OFF BAR IS PROVIDED TO AID REMOVAL OF ANY FIBERS FROM THE OPENING CYLINDER WHICH ARE NOT SELF-DOFFED.
Inventors
- 👤 Cecil S Wise
- 👤 David F Hullett
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |