US3140545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deviation thickness gage
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1960-04-20
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Granted: 1964-07-14
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Expires: 1980-04-20
Abstract
No abstract record available.
Inventors
- 👤 Jr James B Murtland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/02; G01B7/06; G01B7/10; G01B7/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN A GAGE FOR INDICATING THE DEVIATION IN THICKNESS OF AN ARTICLE FROM A PREDETERMINED VALUE, THE COMBINATION OF A PAIR OF MEMBERS BETWEEN WHICH AN ARTICLE TO BE GAGED IS DISPOSED, ONE OF SAID MEMBERS BEING FIXED AND THE OTHER MEMBER BEING MOVABLE TOWARD AND AWAY FROM THE FIXED MEMBER TO ACCOMMODATE ARTICLES OF DIFFERENT THICKNESSES, A SERVO SYSTEM HAVING A SERVOMOTOR THEREIN AND ADAPTED TO PRODUCE MOVEMENT IN THE SERVOMOTOR PROPORTIONAL TO THE DEVIATION IN THICKNESS OF SAID ARTICLE FROM SAID PREDETERMINED VALUE, FIRST TRANSDUCER MEANS IN THE SERVO SYSTEM OPERATIVELY CONNECTED TO SAID OTHER MEMBER, SECOND TRANSDUCER MEANS IN THE SERVO SYSTEM OPERATIVELY CONNECTED TO SAID SERVOMOTOR, MEANS INCLUDING A VARIABLE RESISTIVE NETWORK CONNECTED IN SERIES WITH SAID FIRST AND SECOND TRANSDUCER MEANS FOR CANCELLING THE COMBINED SIGNAL PRODUCED BY THE FIRST AND SECOND TRANSDUCER MEANS WHEN AN ARTICLE OF SAID PREDETERMINED THICKNESS VALUE IS DISPOSED BETWEEN SAID MEMBERS, AND REGISTERING MEANS FOR INDICATING THE AMOUNT OF MOVEMENT OF SAID SERVOMOTOR.
Claim 2
Dependent Claim
164 words
IN A GAGE FOR INDICATING THE DEVIATION IN THICKNESS OF AN ARTICLE FROM A PREDETERMINED VALUE, THE COMBINATION OF A PAIR OF MEMBERS BETWEEN WHICH AN ARTICLE TO BE GAGED IS DISPOSED, ONE OF SAID MEMBERS BEING FIXED AND THE OTHER MEMBER BEING MOVABLE TOWARD AND AWAY FROM THE FIXED MEMBER TO ACCOMMODATE ARTICLES OF DIFFERENT THICKNESSES, A SERVO SYSTEM HAVING A SERVOMOTOR THEREIN AND ADAPTED TO PRODUCE MOVEMENT IN THE SERVOMOTOR PROPORTIONAL TO THE DEVIATION IN THICKNESS OF SAID ARTICLE FROM SAID PREDETERMINED VALUE, FIRST TRANSDUCER MEANS IN THE SERVO SYSTEM OPERATIVELY CONNECTED TO SAID OTHER MEMBER, SECOND TRANSDUCER MEANS IN THE SERVO SYSTEM OPERATIVELY CONNECTED TO SAID SERVOMOTOR, MEANS INCLUDING A VARIABLE RESISTIVE NETWORK CONNECTED IN SERIES WITH SAID FIRST AND SECOND TRANSDUCER MEANS FOR CANCELLING THE COMBINED SIGNAL PRODUCED BY THE FIRST AND SECOND TRANSDUCER MEANS WHEN AN ARTICLE OF SAID PREDETERMINED THICKNESS VALUE IS DISPOSED BETWEEN SAID MEMBERS, AND REGISTERING MEANS FOR INDICATING THE AMOUNT OF MOVEMENT OF SAID SERVOMOTOR.
References Cited (Backward Citations)
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US2610052A
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US2659154A
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US2848815A
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US3000101A
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US2876551A
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |