Press having adjustable platen loading
Abstract
Abstract A PRESS HAVING A PROCESSING CHAMBER BOUNDED ON TWO OPPOSING SIDES BY DRIVE BELTS WHICH ARE CAUSED TO LONGITUDINALLY CONVERGE BY OPPOSED PLATENS WHEREBY THE PROCESSING CHAMBER IS OF DIMINISHING SIDE-TO-SIDE DIMENSION. FILTER BELTS OVERLAY THE DRIVE BELTS AND ARE DRIVEN LONGITUDINALLY THROUGH THE PROCESSING CHAMBER THEREBY, THE FILTER BELTS BEING TENSIONED TO ASSUME THE CONVERGING RELATIONSHIP OF THE DRIVE BELTS. ONE OF THE PLATENS INCLUDES A YIELDABLE PORTION WHICH IS SUPPORTED AT ONE END ONLY AND PROVIDED WITH FLUID OPERATED CYLINDER-AND-PISTON MEANS OPERABLE FOR CAUSING THE YIELDABLE PORTION TO VARY THE ANGLE AT WHICH THE ADJACENT DRIVE BELT EXTENDS TOWARDS THE OTHER THEREOF FOR VARYING THE PRESSING FORCE ON MATERIAL IN THE PROCESSING CHAMBER.
Inventors
- 👤 Oscar Luthi
Bibliographic Details
Claims Analysis
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |