Underwater release
Abstract
Abstract THE DISCLOSED EMBODIMENT OF THE PRESENT INVENTIONS IS A RELEASE DEVICE WHICH IS GENERALLY FORMED OF A CYLINDRICAL HOUSING HAVING AN OPEN END AND A CLOSED END, A PISTON MOUNTED FOR AXIAL MOVEMENT IN THE HOUSING, A SLEEVE EXTENDING OVER THE CLOSED END OF THE HOUSING, AND RELEASABLE RETAINING BALLS EXTENDING THROUGH RESPECTIVE APERTURES IN THE HOUSING AND ENGAGEABLE WITH RESPECTIVE GROOVES IN THE PISTON AND THE SLEEVE. A PAIR OF SEALS ON THE PISTON FORM A FIRST CLOSED CHAMBER AT THE CLOSED END OF THE HOUSING AND A SECOND CLOSED CHAMBER WITH THE RUPTURABLE SEAL AT THE OPEN END OF THE HOUSING. THE INTERMEDIATE PORTION OF THE PISTON INCLUDES A GROOVE FOR RECEIVING THE RETAINING BALLS THEREIN, WHICH GROOVE INCLUDES TWO ADJACENT LANDS. ONE LAND HAS A DIAMETER WHICH FORCES THE RETAINING BALLS INTO ENGAGEMENT WITH THE GROOVE IN THE SLEEVE AND THE OTHER LAND HAS A DIAMETER WHICH PERMITS THE RETAINING BALLS TO DISENGAGE FROM THE GROOVE IN THE SLEEVE.
Inventors
- 👤 Vlash A Pullos
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |