High-pressure seal assembly
Abstract
Abstract THIS DISCLOSURE IS DIRECTED TO A HIGH-PRESSURE SEAL ASSEMBLY WHICH IS USEFUL FOR PREVENTING LEAKAGE OF A HIGH PRESSURE FLUID THROUGH THE INTERFACE BETWEEN A HOUSING AND A MEMBER EXTENDING THERETHROUGH, PARTICULARLY WHERE THE HOUSING AND MEMBER ARE MOVABLE RELATIVE TO EACH OTHER, E.G. A PISTON MOVABLE INTO A PRESSURE VESSEL FOR PRESSURIZING FLUID CONTAINED THEREIN. A HIGH-PRESSURE SEAL ASSEMBLY ACCORDING TO THE PRESENT DISCLOSURE MAY INCLUDE A HIGH-PRESSURE SEAL SUB-ASSEMBLY INCLUDING AN ANNULAR BEVELED ANTI-EXTRUSION RING, AND A LOW-PRESSURE SEAL SUBASSEMBLY INCLUDING AN ANNULAR RING OF RECTANGULAR CROSSSECTION, AN ANNULAR RING OF TRIANGULAR CROSS-SECTION AND A RESILIENT O-RING , ALL MOUNTED IN AN ANNULAR CHANNEL ON THE HIGH PRESSURE SIDE OF THE ANTI-EXTRUSION RING, THIS DISCLOSURE IS ALSO DIRECTED TO AN ANTI-EXTRUSION RING WITH TAPER ANGLES WHICH PROVIDE IMPROVED RESULTS WITH REGARD TO FRICTIONAL ENGAGEMENT BETWEEN THE ANTI-EXTRUSION RING AND A FLUID PRESSURIZING PISTON, AND WITH REGARD TO TOLERANCE TO WEAR OF THE ANTI-EXTRUSION RING.
Inventors
- 👤 John Edward Beroset
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) | 1974-09-19 | 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 |