US3249714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically operable switching device
Assignee: Cutler Hammer Inc
•
Filing: 1963-02-13
•
Granted: 1966-05-03
•
Expires: 1983-02-13
Abstract
No abstract record available.
Inventors
- 👤 Hyink Roy
- 👤 Richard P Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:06
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN COMBINATION WITH A COMMERCIALLY AVAILABLE REED SWITCH HAVING AN ELONGATED TUBULAR SEALED ENVELOPE AND A PAIR OF MAGNETIZABLE SWITCH CONTACTS EXTENDING FROM OVERLAPPING RELATION WITHIN THE ENVELOPE THROUGH OPPOSITE SEALED ENDS THEREOF TO FORM EXTERNAL ELECTRICAL TERMINALS AND ADAPTED TO BE OPERATED BY AN EXTERNAL MAGNETIC FIELD PRODUCING ELEMENT MOVING PAST ONE END THEREOF, THE IMPROVEMENT COMPRISING: (A) MEANS SENSITIZING ONE END OF SAID SWITCH TO THE EXTERNAL MAGNETIC FIELD COMPRISING A SLUG OF MAGNETIZABLE MATERIAL IN CLOSE PROXIMITY TO AN EXTERNAL TERMINAL FOR CONCENTRATING THE MAGNETIC FIELD IN THE ASSOCIATED CONTACT THEREBY ADAPTING IT FOR OPERATION BY A REDUCED MAGNETIC FIELD AT SAID ONE END; (B) AND A PAIR OF CONDUCTORS CONNECTED TO THE OPPOSITE END TERMINALS FOR CONNECTING THE SWITCH CONTACTS TO AN EXTERNAL CIRCUIT.
Claim 2
Dependent Claim
128 words
IN COMBINATION WITH A COMMERCIALLY AVAILABLE REED SWITCH HAVING AN ELONGATED TUBULAR SEALED ENVELOPE AND A PAIR OF MAGNETIZABLE SWITCH CONTACTS EXTENDING FROM OVERLAPPING RELATION WITHIN THE ENVELOPE THROUGH OPPOSITE SEALED ENDS THEREOF TO FORM EXTERNAL ELECTRICAL TERMINALS AND ADAPTED TO BE OPERATED BY AN EXTERNAL MAGNETIC FIELD PRODUCING ELEMENT MOVING PAST ONE END THEREOF, THE IMPROVEMENT COMPRISING: (A) MEANS SENSITIZING ONE END OF SAID SWITCH TO THE EXTERNAL MAGNETIC FIELD COMPRISING A SLUG OF MAGNETIZABLE MATERIAL IN CLOSE PROXIMITY TO AN EXTERNAL TERMINAL FOR CONCENTRATING THE MAGNETIC FIELD IN THE ASSOCIATED CONTACT THEREBY ADAPTING IT FOR OPERATION BY A REDUCED MAGNETIC FIELD AT SAID ONE END; (B) AND A PAIR OF CONDUCTORS CONNECTED TO THE OPPOSITE END TERMINALS FOR CONNECTING THE SWITCH CONTACTS TO AN EXTERNAL CIRCUIT.
References Cited (Backward Citations)
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |