Patent US3330154A successfully refreshed from Google Patents.
US3330154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the resultant load on a stationary shaft
Assignee: Sigma Systems Corp
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Filing: 1965-01-12
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Granted: 1967-07-11
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Expires: 1985-01-12
Abstract
No abstract record available.
Inventors
- 👤 Calvin L Habern
- 👤 William D Jobe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:31
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/0004; B; B66; B66D; B66D1/00; B66D1/28; B66D1/40; B66D1/48; B66D1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A SYSTEM FOR SUPPORTING A ROTATABLE MEMBER, COMPRISING: (A) A CYLINDRICAL SHAFT FOR BEING INSERTED THROUGH SAID ROTATABLE MEMBER ALONG THE AXIS THEREOF AND DEFINING A CAVITY IN AN END THEREOF WHICH IS SUBJECT TO INCREMENTAL CHANGES IN DIMEMSIONS IN RESPONSE TO PRESSURE VARIATIONS EXERTED ON SAID SHAFT BY SAID ROTATABLE MEMBER, (B) SAID CAVITY BEING CIRCULAR IN CROSS-SECTION AND TAPERED INWARD FROM THE END OF SAID SHAFT CONCENTRIC WITH THE AXIS THEREOF AND, (C) A TRANSDUCER DISPOSED WITHIN SAID CAVITY HAVING A PAIR OF OPPOSING CURVED ENDS ABUTTING THE WALLS OF SAID CAVITY WITH SAID ENDS BEING TAPERED TO MATCH THE TAPER OF SAID CAVITY, AND BEING STRAINED IN RESPONSE TO SAID INCREMENTAL CHANGES IN DIMENSIONS OF SAID CAVITY, (D) SAID TRANSDUCER HAVING STRAIN GAGE MEANS MOUNTED THEREON WHICH IS STRAINED IN PROPORTION TO THE STRAIN APPLIED TO SAID TANSDUCER.
Claim 2
Independent Claim
141 words
A SYSTEM FOR SUPPORTING A ROTATABLE MEMBER, COMPRISING: (A) A CYLINDRICAL SHAFT FOR BEING INSERTED THROUGH SAID ROTATABLE MEMBER ALONG THE AXIS THEREOF AND DEFINING A CAVITY IN AN END THEREOF WHICH IS SUBJECT TO INCREMENTAL CHANGES IN DIMEMSIONS IN RESPONSE TO PRESSURE VARIATIONS EXERTED ON SAID SHAFT BY SAID ROTATABLE MEMBER, (B) SAID CAVITY BEING CIRCULAR IN CROSS-SECTION AND TAPERED INWARD FROM THE END OF SAID SHAFT CONCENTRIC WITH THE AXIS THEREOF AND, (C) A TRANSDUCER DISPOSED WITHIN SAID CAVITY HAVING A PAIR OF OPPOSING CURVED ENDS ABUTTING THE WALLS OF SAID CAVITY WITH SAID ENDS BEING TAPERED TO MATCH THE TAPER OF SAID CAVITY, AND BEING STRAINED IN RESPONSE TO SAID INCREMENTAL CHANGES IN DIMENSIONS OF SAID CAVITY, (D) SAID TRANSDUCER HAVING STRAIN GAGE MEANS MOUNTED THEREON WHICH IS STRAINED IN PROPORTION TO THE STRAIN APPLIED TO SAID TANSDUCER.
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |