US3089343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer devices employing a fluid film for improvement of sensitivity and frequency response characteristics
Assignee: Lockheed Martin Corp
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Filing: 1960-08-04
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Granted: 1963-05-14
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Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 Rule Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/004; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A SECOND ORDER TRANSDUCER SYSTEM INCLUDING A MASS ADAPTED TO MOVE IN RESPONSE TO APPLIED FORCES, THE IMPROVEMENT COMPRISING: A SURFACE PROVIDED ADJACENT AND SUBSTANTIALLY PARALLEL TO AND AS LARGE IN AREA AS A SURFACE OF SAID MASS AND SUBSTANTIALLY NORMAL TO THE DIRECTION OF THE APPLIED FORCE SO AS TO PROVIDE A FLUID FILM THEREBETWEEN HAVING A RATIO OF AREA TO THICKNESS CHOSEN SO THAT SAID FLUID FILM EXERTS FREUENCY-DEPENDENT FORCES ON SAID MASS WHICH ACT TO IMPROVE THE FREQUENCY RESPONSE OF SAID SYSTEM, SAID FLUID HAVING FREE INGRESS AND EGRESS FROM THE SPACE BETWEEN SAID MASS AND SAID SURFACE ADJACENT AND SUBSTANTIALLY PARALLEL THERETO.
Claim 2
Dependent Claim
107 words
IN A SECOND ORDER TRANSDUCER SYSTEM INCLUDING A MASS ADAPTED TO MOVE IN RESPONSE TO APPLIED FORCES, THE IMPROVEMENT COMPRISING: A SURFACE PROVIDED ADJACENT AND SUBSTANTIALLY PARALLEL TO AND AS LARGE IN AREA AS A SURFACE OF SAID MASS AND SUBSTANTIALLY NORMAL TO THE DIRECTION OF THE APPLIED FORCE SO AS TO PROVIDE A FLUID FILM THEREBETWEEN HAVING A RATIO OF AREA TO THICKNESS CHOSEN SO THAT SAID FLUID FILM EXERTS FREUENCY-DEPENDENT FORCES ON SAID MASS WHICH ACT TO IMPROVE THE FREQUENCY RESPONSE OF SAID SYSTEM, SAID FLUID HAVING FREE INGRESS AND EGRESS FROM THE SPACE BETWEEN SAID MASS AND SAID SURFACE ADJACENT AND SUBSTANTIALLY PARALLEL THERETO.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |