Extrusion prevention means
Abstract
Abstract THE INVENTION RELATES TO A HYDRAULIC PRESS, WHICH HAS A PAIR OF JAWS AT LEAST ONE OF SAID JAWS HAVING A MOVABLE PLATEN, SAID MOVABLE PLATEN BEING MOVABLY SECURED TO SAID JAW BY FASTENING MEANS THEREBETWEEN, A FLEXIBLE MEMBRANE HAVING A PERIPHERAL, EXTENDING RIB AND BEING FASTENED TO SAID JAW BY FASTENING MEANS AND POSITIONED INTERMEDIATE SAID MOVABLE PLATEN AND SAID JAW, AND PRESSURE MEANS IN COMMUNICATION WITH THE FLEXIBLE MEMBER. A GROOVE IS PROVIDED BETWEEN SAID AT LEAST ONE JAW AND SAID FASTENING MEMBER INTERMEDIATE THE END WALL THEREOF AND SAID FLEXIBLE MEMBER, SAID GROOVE HAVING DISPOSED THEREIN FIRST SEALING MEANS AND SECOND SEALING MEANS, SAID FIRST SEALING MEANS ADAPTED TO PREVENT THE EXTRUSION OF HYDRAULIC FLUID FROM SAID APPARATUS DURING PRESSING AND SAID SECOND SEALING MEANS ADAPTED TO PREVENT EXTRUSION OF SAID FIRST SEALING MEANS FROM THE APPARATUS DURING PRESSING.
Inventors
- 👤 Claude R Wallick Jr
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 |