US3248936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated transducer
Assignee: Individual
•
Filing: 1960-12-21
•
Granted: 1966-05-03
•
Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Shih Y Lee
- 👤 Yao T Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:22
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0033; G01L9/0035; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2268; G01L1/2281; G01L19/00; G01L19/04; G01L9/0041; G01L9/0051; G01L9/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
IN A FORCE SENSING TRANSDUCER OF A TYPE HAVING A SENSITIVITY WHICH NORMALLY VARIES WITH TEMPERATURE, HAVING A DEFLECTABLE MEMBER TO WHICH THE INPUT TO THE TRANSDUCER IS COUPLED SO THAT THE TRANSDUCER OUTPUT VARIES AS A FUNCTION OF THE DEFLECTION OF SAID DEFLECTABLE MEMBER; TEMPERATURE COMPENSATING MEANS FOR SUBSTANTIALLY ELIMINATING TEMPERATURE INDUCED CHANGES IN TRANSDUCER SENSITIVITY PROVIDING A BIASING FORCE HAVING A RATE OF CHANGE AS A FUNCTION OF DEFLECTION OF SAID DEFLECTABLE MEMBER WHICH VARIES WITH TEMPERATURE; SAID COMPENSATING MEANS BEING COUPLED TO SAID DEFLECTABLE MEMBER, THEREBY PROVIDING THE TRANSDUCER WITH A STIFFNESS, WITH RESPECT TO DEFLECTION OF SAID DEFLECTABLE MEMBER, WHICH VARIES AS A FUNCTION OF TEMPERATURE, A GIVEN TEMPERATURE VARIATION WHICH PRODUCES AN INCREASE IN THE SENSITIVITY OF THE TRANSDUCER PRODUCING AN INCREASE IN SAID STIFFNESS, AND MEANS FOR ADJUSTING THE RATE OF CHANGE OF SAID BIASING FORCE INDEPENDENTLY OF TEMPERATURE WHEREBY THE VARIATION IN SENSITIVITY OF THE TRANSDUCER WITH TEMPERATURE MAY BE COMPENSATED OVER EXTENDED TEMPERATURE RANGES.
Claim 2
Dependent Claim
162 words
IN A FORCE SENSING TRANSDUCER OF A TYPE HAVING A SENSITIVITY WHICH NORMALLY VARIES WITH TEMPERATURE, HAVING A DEFLECTABLE MEMBER TO WHICH THE INPUT TO THE TRANSDUCER IS COUPLED SO THAT THE TRANSDUCER OUTPUT VARIES AS A FUNCTION OF THE DEFLECTION OF SAID DEFLECTABLE MEMBER; TEMPERATURE COMPENSATING MEANS FOR SUBSTANTIALLY ELIMINATING TEMPERATURE INDUCED CHANGES IN TRANSDUCER SENSITIVITY PROVIDING A BIASING FORCE HAVING A RATE OF CHANGE AS A FUNCTION OF DEFLECTION OF SAID DEFLECTABLE MEMBER WHICH VARIES WITH TEMPERATURE; SAID COMPENSATING MEANS BEING COUPLED TO SAID DEFLECTABLE MEMBER, THEREBY PROVIDING THE TRANSDUCER WITH A STIFFNESS, WITH RESPECT TO DEFLECTION OF SAID DEFLECTABLE MEMBER, WHICH VARIES AS A FUNCTION OF TEMPERATURE, A GIVEN TEMPERATURE VARIATION WHICH PRODUCES AN INCREASE IN THE SENSITIVITY OF THE TRANSDUCER PRODUCING AN INCREASE IN SAID STIFFNESS, AND MEANS FOR ADJUSTING THE RATE OF CHANGE OF SAID BIASING FORCE INDEPENDENTLY OF TEMPERATURE WHEREBY THE VARIATION IN SENSITIVITY OF THE TRANSDUCER WITH TEMPERATURE MAY BE COMPENSATED OVER EXTENDED TEMPERATURE RANGES.
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |