Patent US3277437A successfully refreshed from Google Patents.
US3277437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic apparatus
Assignee: General Dynamics Corp
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Filing: 1965-04-05
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Granted: 1966-10-04
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Expires: 1985-04-05
Abstract
No abstract record available.
Inventors
- 👤 John V Bouyoucos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:21
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/143; G01V1/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN APPARATUS FOR GENERATING ACOUSTIC ENERGY IN A FLUID MEDIUM WHEN SUBMERGED IN SAID FLUID MEDIUM, SAID APPARATUS COMPRISING: (A) A HOUSING INCLUDING A CYLINDRICAL CAVITY OF A GIVEN LENGTH OPENED AT ONE TO SAID FLUID MEDIUM, (B) A PISTON SLIDABLY DISPOSED WITHIN SAID CAVITY AND DEFINING A CHAMBER WITHIN SAID HOSING, (C) CLAMPING MEANS FOR CLAMPING SAID PISTON AT SAID OPEN END OF SAID CYLINDRICAL CAVITY, (D) MEANS FOR EVACUATING SAID CHAMBER TO A PRESSURE BELOW THE AMBIENT PRESSURE OF SAID MEDIUM TO WHICH SAID HOUSING END IS EXPOSED, AND (E) CONTROL MEANS CONNECTED TO SAID CLAMPING MEANS FOR SELECTIVELY RELEASING SAID PISTON.
Claim 2
Independent Claim
104 words
AN APPARATUS FOR GENERATING ACOUSTIC ENERGY IN A FLUID MEDIUM WHEN SUBMERGED IN SAID FLUID MEDIUM, SAID APPARATUS COMPRISING: (A) A HOUSING INCLUDING A CYLINDRICAL CAVITY OF A GIVEN LENGTH OPENED AT ONE TO SAID FLUID MEDIUM, (B) A PISTON SLIDABLY DISPOSED WITHIN SAID CAVITY AND DEFINING A CHAMBER WITHIN SAID HOSING, (C) CLAMPING MEANS FOR CLAMPING SAID PISTON AT SAID OPEN END OF SAID CYLINDRICAL CAVITY, (D) MEANS FOR EVACUATING SAID CHAMBER TO A PRESSURE BELOW THE AMBIENT PRESSURE OF SAID MEDIUM TO WHICH SAID HOUSING END IS EXPOSED, AND (E) CONTROL MEANS CONNECTED TO SAID CLAMPING MEANS FOR SELECTIVELY RELEASING SAID PISTON.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |