Patent US3812855A successfully refreshed from Google Patents.
US3305818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensor structure
Assignee: Electro Optical Systems Inc
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Filing: 1964-12-23
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Granted: 1967-02-21
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Expires: 1984-12-23
Abstract
No abstract record available.
Inventors
- 👤 Brueggeman Leo
- 👤 Timm Will
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:35
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0041; G01L9/0051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A SIMPLE, SENSITIVE SENSOR STRUCTURE WHICH SUPPORTS ITS SENSOR ELEMENT WHILE SUBSTANTIALLY PROTECTING IT FROM EXTERNAL STRESSES ON THE STRUCTURE COMPRISING: (A) A HOUSING INCLUDING A CYLINDRICAL SHAFT HAVING AN OUTER END AND AN INNER END AND SAID INNER END IS ADAPTED TO BE INSERTED INTO A BODY BEING MEASURED, SAID SHAFT HAVING AN AXIAL BORE THERETHROUGH; AND, (B) A SENSOR ELEMENT INCLUDING A SLEEVE POSITIONED SUBSTANTIALLY COAXIALLY WITH AND INTEGRALLY JOINED AT ITS FIRST END TO SAID SHAFT, SAID SLEEVE AND THE INNER PORTION OF SAID SHAFT BORE BEING FORMED FROM A SINGLE BODY BY A CIRCUMFERENTIAL GROOVE IN THE INNER END OF SAID SHAFT, A DIAPHRAGM MOUNTED OVER THE SECOND END OF SAID SLEEVE, AND AT LEAST ONE STRAIN GAUGE MOUNTED ON THE UPPER SURFACE OF SAID DIAPHRAGM.
Claim 2
Dependent Claim
130 words
A SIMPLE, SENSITIVE SENSOR STRUCTURE WHICH SUPPORTS ITS SENSOR ELEMENT WHILE SUBSTANTIALLY PROTECTING IT FROM EXTERNAL STRESSES ON THE STRUCTURE COMPRISING: (A) A HOUSING INCLUDING A CYLINDRICAL SHAFT HAVING AN OUTER END AND AN INNER END AND SAID INNER END IS ADAPTED TO BE INSERTED INTO A BODY BEING MEASURED, SAID SHAFT HAVING AN AXIAL BORE THERETHROUGH; AND, (B) A SENSOR ELEMENT INCLUDING A SLEEVE POSITIONED SUBSTANTIALLY COAXIALLY WITH AND INTEGRALLY JOINED AT ITS FIRST END TO SAID SHAFT, SAID SLEEVE AND THE INNER PORTION OF SAID SHAFT BORE BEING FORMED FROM A SINGLE BODY BY A CIRCUMFERENTIAL GROOVE IN THE INNER END OF SAID SHAFT, A DIAPHRAGM MOUNTED OVER THE SECOND END OF SAID SLEEVE, AND AT LEAST ONE STRAIN GAUGE MOUNTED ON THE UPPER SURFACE OF SAID DIAPHRAGM.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |