US3182686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer
Assignee: Unisys Corp
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Filing: 1962-03-28
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Granted: 1965-05-11
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Saul N Zilberfarb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:55
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/03; F; F15; F15C; F15C1/00; F15C1/02; F15C1/04; Y; Y10; Y10S; Y10S239/00; Y10S239/03; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2213; Y10T137/2229; Y10T137/224
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
A DEVICE FOR CONVERTING AN ELECTRICAL SIGNAL INTO A CHANGE IN FLUID FLOW WHICH COMPRISES: A CONDUIT ADAPTED TO RECEIVE A STREAM OF FLUID AND TO CONDUCT SAME THERETHROUGH; A PLURALITY OF ELECTRO-MECHANICAL TRANSDUCERS MADE OF MATERIAL WHOSE PHYSICAL SIZE CHANGES IN AT LEAST ONE DIMENSION IN RESPONSE TO AN APPLIED FIELD; MEANS MOUNTING EACH SAID TRANSDUCER WITHIN SAID CONDUIT IN COPLANAR RELATIONSHIP WITH AT LEAST ONE OTHER TRANSDUCER SUCH THAT SAID ONE DIMENSION IS TRANSVERSE TO THE AXIS OF FLUID FLOW WHEREBY A CHANGE THEREIN CHANGES THE EFFECTIVE CONDUIT CROSS-SECTIONAL FLUID FLOW AREA; AND MEANS RESPONSIVE TO AN ELECTRICAL SIGNAL FOR SIMULTANEOUSLY APPLYING A FIELD TO EACH SAID TRANSDUCER WHEREBY SAID FLOW AREA IS CHANGED.
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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |