Patent US3269174A successfully refreshed from Google Patents.
US3269174A
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Stress sensor and stress sensing system
Assignee: Individual
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Filing: 1964-03-09
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Granted: 1966-08-30
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Frank A Linville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:45
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A STRESS SENSING SYSTEM COMPRISING: (A) A PIEZOTHERMAL MEANS DEFINING AN ELASTOMER DEFORMABLE UNDER STRESS; (B) A THERMISTOR IMBEDDED IN SAID ELASTOMER; (C) A CURRENT SOURCE; (D) MEANS CONNECTING SAID CURRENT SOURCE TO SAID THERMISTOR TO FORM A COMPLETED ELECTRICAL CIRCUIT; (E) DETECTOR MEANS FOR DETECTING AND INDICATING A CHANGE OF CURRENT FLOWING IN SAID ELECTRICAL CIRCUIT; (F) A RIGID SHELL ENCASING SAID ELASTOMER TO RESIST DEFORMATION OF SAID ELASTOMER IN PREDETERMINED DIRECTIONS WHILE PERMITTING DEFORMATION IN OTHER PREDETERMINED DIRECTIONS.
Claim 2
Dependent Claim
80 words
A STRESS SENSING SYSTEM COMPRISING: (A) A PIEZOTHERMAL MEANS DEFINING AN ELASTOMER DEFORMABLE UNDER STRESS; (B) A THERMISTOR IMBEDDED IN SAID ELASTOMER; (C) A CURRENT SOURCE; (D) MEANS CONNECTING SAID CURRENT SOURCE TO SAID THERMISTOR TO FORM A COMPLETED ELECTRICAL CIRCUIT; (E) DETECTOR MEANS FOR DETECTING AND INDICATING A CHANGE OF CURRENT FLOWING IN SAID ELECTRICAL CIRCUIT; (F) A RIGID SHELL ENCASING SAID ELASTOMER TO RESIST DEFORMATION OF SAID ELASTOMER IN PREDETERMINED DIRECTIONS WHILE PERMITTING DEFORMATION IN OTHER PREDETERMINED DIRECTIONS.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |