Patent US3249816A successfully refreshed from Google Patents.
US3249816A
Expired / Lapsed
US
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Overtemperature protected apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1962-04-06
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Granted: 1966-05-03
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Expires: 1982-04-06
Abstract
No abstract record available.
Inventors
- 👤 John J Courtin
- 👤 Leslie U Eidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:56
CPC Classifications
H; H02; H02H; H02H5/00; H02H5/04; H02H5/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A CONTROL STATION FOR OVERTEMPERATURE PROTECTED APPARATUS ADAPTED TO BE LOCATED REMOTELY FROM THE PROTECTED APPARATUS, AN EXTERNAL CIRCUIT FOR RESPONDING TO OVERTEMPERATURE OF THE APPARATUS; SAID CONTROL STATION INCLUDING A PAIR OF DIODES HAVING LIKE ENDS CONNECTED TOGETHER AND TO A FIRST OUTPUT TERMINAL AT SAID CONTROL STATION AND THEIR OTHER ENDS CONNECTED TO AN ALTERNATING CURRENT SUPPLY CIRCUIT, A PROTECTIVE RELAY INCLUDING A COIL CONNECTED TO THE ALTERNATING CURRENT SUPPLY AND TO A SECOND OUTPUT TERMINAL AT SAID CONTROL STATION, SAID RELAY HAVING CONTACTS AND CIRCUIT MEANS FOR CONNECTING SAID CONTACTS TO OPEN SAID EXTERNAL CIRCUIT UNDER OVERTEMPERATURE CONDITIONS.
Claim 2
Dependent Claim
101 words
A CONTROL STATION FOR OVERTEMPERATURE PROTECTED APPARATUS ADAPTED TO BE LOCATED REMOTELY FROM THE PROTECTED APPARATUS, AN EXTERNAL CIRCUIT FOR RESPONDING TO OVERTEMPERATURE OF THE APPARATUS; SAID CONTROL STATION INCLUDING A PAIR OF DIODES HAVING LIKE ENDS CONNECTED TOGETHER AND TO A FIRST OUTPUT TERMINAL AT SAID CONTROL STATION AND THEIR OTHER ENDS CONNECTED TO AN ALTERNATING CURRENT SUPPLY CIRCUIT, A PROTECTIVE RELAY INCLUDING A COIL CONNECTED TO THE ALTERNATING CURRENT SUPPLY AND TO A SECOND OUTPUT TERMINAL AT SAID CONTROL STATION, SAID RELAY HAVING CONTACTS AND CIRCUIT MEANS FOR CONNECTING SAID CONTACTS TO OPEN SAID EXTERNAL CIRCUIT UNDER OVERTEMPERATURE CONDITIONS.
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) | 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 |