Rce differential pressure transducer and readout for sensing claw grip fo
Abstract
Abstract A SUBMERSIBLE HAVING AN EXTERNALLY MOUNTED HYDRAULIC SYSTEM IS PROVIDED WITH A DIFFERENTIAL PRESSURE TRANSDUCER CONNECTED BETWEEN THE SUPPLY AND RETURN LINES WHICH ARTICULATE A REMOTELY DISPOSED CLAW. THE TRANSDUCER IS RESPONSIVE TO PRODUCE A SIGNAL REPRESENTATIVE OF THE PRESSURE DIFFERENTIAL BETWEEN THE INTERNAL PRESSURES IN THE LINES. THIS SIGNAL IS FED THROUGH THE PRESSURE HULL OF THE SUBMERSIBLE TO AN INTERNALLY CARRIED METER TO ENABLE THE DETERMINATION OF THE CLAW''S GRIPPING FORCE. ALTHOUGH THE METER ACTUALLY "READS" DIFFERENTIAL PRESSURE, IT IS CALIBRATED IN UNITS OF GRIP FORCE, IN THIS CASE, POUNDS (OF FORCE). THIS IS POSSIBLE BECAUSE THE DIFFERENTIAL PRESSURE IS PROPORTIONAL TO THE CLAW GRIP FORCE. BEING THUSLY ARRANGED, THE SENSING OR READOUT DEVICES ARE REMOVED FROM THE NEAR PROXIMITY OF THE CLAW AND ARE LESS VULNERABLE TO DAMAGE.
Inventors
- 👤 K Fishel
Bibliographic Details
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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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |