US3100292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration pickup
Assignee: Textron Electronics Inc
•
Filing: 1960-01-08
•
Granted: 1963-08-06
•
Expires: 1980-01-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas C Warner
- 👤 John E Judd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:42
CPC Classifications
G; G01; G01H; G01H11/00; G01H11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A VIBRATION PICKUP COMPRISING A CYLINDRICAL COIL FORM WITH AN AXIAL BORE, A PICKUP COIL WOUND ON SAID COIL FORM, A SLEEVE OF PARAMAGNETIC MATERIAL SURROUNDING SAID PICKUP COIL AND CENTERED BETWEEN THE ENDS THEREOF, A BAR MAGNET OF LESSER LENGTH THAN SAID COIL FORM DISPOSED IN SAID BORE SO AS TO BE SPRING-COUPLED MAGNETICALLY TO SAID SLEEVE WITH NO STRUCTURAL CONNECTION THEREBETWEEN FOR AXIAL MOVEMENT WITHIN SAID BORE, MEANS FOR ESTABLISHING ELECTRICAL CONNECTION TO SAID PICKUP COIL, AND MEANS FOR COUPLING SAID COIL FORM TO A VIBRATING OBJECT, SAID PICKUP COIL BEING ARRANGED TO GENERATE A SIGNAL VOLTAGE WITHIN GIVEN LIMITS OF FREQUENCY AND DISPLACEMENT WHICH IS DIRECTLY PROPORTIONAL TO THE VELOCITY OF MOVEMENT OF THE OBJECT.
Claim 2
Dependent Claim
118 words
A VIBRATION PICKUP COMPRISING A CYLINDRICAL COIL FORM WITH AN AXIAL BORE, A PICKUP COIL WOUND ON SAID COIL FORM, A SLEEVE OF PARAMAGNETIC MATERIAL SURROUNDING SAID PICKUP COIL AND CENTERED BETWEEN THE ENDS THEREOF, A BAR MAGNET OF LESSER LENGTH THAN SAID COIL FORM DISPOSED IN SAID BORE SO AS TO BE SPRING-COUPLED MAGNETICALLY TO SAID SLEEVE WITH NO STRUCTURAL CONNECTION THEREBETWEEN FOR AXIAL MOVEMENT WITHIN SAID BORE, MEANS FOR ESTABLISHING ELECTRICAL CONNECTION TO SAID PICKUP COIL, AND MEANS FOR COUPLING SAID COIL FORM TO A VIBRATING OBJECT, SAID PICKUP COIL BEING ARRANGED TO GENERATE A SIGNAL VOLTAGE WITHIN GIVEN LIMITS OF FREQUENCY AND DISPLACEMENT WHICH IS DIRECTLY PROPORTIONAL TO THE VELOCITY OF MOVEMENT OF THE OBJECT.
References Cited (Backward Citations)
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US2651769A
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US2852243A
Cited
US2913701A
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US2942479A
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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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |