Patent US3335685A successfully refreshed from Google Patents.
US3335685A
Expired / Lapsed
US
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Buoyancy control system and devices employing same
Assignee: BLUE MERIDIAN CO Inc
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Filing: 1965-10-22
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Granted: 1967-08-15
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Peter R Gimbel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:13
CPC Classifications
B; B63; B63G; B63G8/00; B63G8/14; B63G8/22; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/22; B63C11/2245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A BUOYANCY CONTROL SYSTEM WHEREIN THE SIZE OF AN AIR BUBBLE WITHIN A FREE-FLOODING BUOYANCY CHAMBER IS USED TO CONTROL BUOYANCY, THE IMPROVEMENT WHICH COMPRISES CONTROLLING SIZE OF THE AIR BUBBLE WITHIN SAID BUOYANCY CHAMBER BY MEANS OF AN ADJUSTABLE WATER LEVEL SENSING MEANS PROVIDED WITHIN SAID CHAMBER, SAID WATER LEVEL SENSING MEANS BEING OPERATIVELY CONNECTED TO AN AIR SUPPLY MEANS AND BEING EFFECTIVE TO INTRODUCE AIR INTO SAID CHAMBER FROM SAID AIR SUPPLY MEANS WHEN THE WATER OF THE AIR-WATER INTERFACE OF SAID BUBBLE WITHIN SAID CHAMBER CONTACTS SAID WATER LEVEL SENSING MEANS AND WHEREIN SAID WATER LEVEL SENSING MEANS IS FIXED TO A FLUID
Claim 2
Dependent Claim
107 words
IN A BUOYANCY CONTROL SYSTEM WHEREIN THE SIZE OF AN AIR BUBBLE WITHIN A FREE-FLOODING BUOYANCY CHAMBER IS USED TO CONTROL BUOYANCY, THE IMPROVEMENT WHICH COMPRISES CONTROLLING SIZE OF THE AIR BUBBLE WITHIN SAID BUOYANCY CHAMBER BY MEANS OF AN ADJUSTABLE WATER LEVEL SENSING MEANS PROVIDED WITHIN SAID CHAMBER, SAID WATER LEVEL SENSING MEANS BEING OPERATIVELY CONNECTED TO AN AIR SUPPLY MEANS AND BEING EFFECTIVE TO INTRODUCE AIR INTO SAID CHAMBER FROM SAID AIR SUPPLY MEANS WHEN THE WATER OF THE AIR-WATER INTERFACE OF SAID BUBBLE WITHIN SAID CHAMBER CONTACTS SAID WATER LEVEL SENSING MEANS AND WHEREIN SAID WATER LEVEL SENSING MEANS IS FIXED TO A FLUID
References Cited (Backward Citations)
US3252439A
Cited
US3190256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |