Patent US2405287A successfully refreshed from Google Patents.
US3074175A
Expired / Lapsed
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Displacement transducer
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1960-03-14
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Granted: 1963-01-22
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Expires: 1980-03-14
Abstract
No abstract record available.
Inventors
- 👤 Richard H Ludlam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:22
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DISPLACEMENT TRANSDUCER, COMPRISING: A RIGID FRAME; A COMPOUND LEAF ASSEMBLY COMPRISING TWO LEAVES HAVING THEIR ADJACENT ENDS AFFIXED TO EACH OTHER TO FORM A V-SHAPED ASSEMBLY HAVING ONE FREE END OF SAID ASSEMBLY FIXED TO SAID FRAME; A SINGLE ELECTRICAL RESISTANCE TYPE STRAIN GAUGE OPERATIVELY MOUNTED ON ONE OF SAID LEAVES TO DETECT BENDING THEREOF; AND RIGID CONNECTOR MEANS FOR CONNECTION OF THE OTHER FREE END OF SAID LEAF ASSEMBLY WITH A MOVING PART BEING MEASURED.
Claim 2
Dependent Claim
77 words
A DISPLACEMENT TRANSDUCER, COMPRISING: A RIGID FRAME; A COMPOUND LEAF ASSEMBLY COMPRISING TWO LEAVES HAVING THEIR ADJACENT ENDS AFFIXED TO EACH OTHER TO FORM A V-SHAPED ASSEMBLY HAVING ONE FREE END OF SAID ASSEMBLY FIXED TO SAID FRAME; A SINGLE ELECTRICAL RESISTANCE TYPE STRAIN GAUGE OPERATIVELY MOUNTED ON ONE OF SAID LEAVES TO DETECT BENDING THEREOF; AND RIGID CONNECTOR MEANS FOR CONNECTION OF THE OTHER FREE END OF SAID LEAF ASSEMBLY WITH A MOVING PART BEING MEASURED.
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |