Patent US3312802A successfully refreshed from Google Patents.
US3312802A
Expired / Lapsed
US
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Bimetal with heater mounted through a channel formed by alternately spaced portions separated by slits
Assignee: General Electric Co
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Filing: 1965-12-30
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Granted: 1967-04-04
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Jr William D Ryckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:10
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A THERMALLY RESPONSIVE SWITCH ELEMENT COMPRISING: (A) A BIMETALLIC STRIP CARRYING A FIRST CONTACT ADAPTED TO BE ENGAGED WITH A SECOND CONTACT IN THE SWITCH, SAID STRIP INCLUDING A PLURALITY OF INTEGRALLY FORMED CHANNEL-DEFINING PORTIONS SEPARATED FROM EACH OTHER BY SLITS AND SPACED ALTERNATELY IN OPPOSITE DIRECTIONS FROM THE TOP AND BOTTOM SURFACES OF THE STRIP; AND (B) AN ELECTRICAL HEATER SECURELY MOUNTED ON SAID STRIP IN SAID CHANNEL, A FIRST SURFACE PORTION OF SAID HEATER CONFRONTING THE TOP SURFACE OF SAID BIMETALLIC STRIP IN ONE OF SAID CHANNEL-DEFINING PORTIONS, AND A SECOND SURFACE PORTION OF SAID HEATER CONFRONTING THE BOTTOM SURFACE OF SAID BIMETALLIC STRIP IN AN ADJACENT ONE OF SAID CHANNEL-DEFINING PORTIONS.
Claim 2
Dependent Claim
114 words
A THERMALLY RESPONSIVE SWITCH ELEMENT COMPRISING: (A) A BIMETALLIC STRIP CARRYING A FIRST CONTACT ADAPTED TO BE ENGAGED WITH A SECOND CONTACT IN THE SWITCH, SAID STRIP INCLUDING A PLURALITY OF INTEGRALLY FORMED CHANNEL-DEFINING PORTIONS SEPARATED FROM EACH OTHER BY SLITS AND SPACED ALTERNATELY IN OPPOSITE DIRECTIONS FROM THE TOP AND BOTTOM SURFACES OF THE STRIP; AND (B) AN ELECTRICAL HEATER SECURELY MOUNTED ON SAID STRIP IN SAID CHANNEL, A FIRST SURFACE PORTION OF SAID HEATER CONFRONTING THE TOP SURFACE OF SAID BIMETALLIC STRIP IN ONE OF SAID CHANNEL-DEFINING PORTIONS, AND A SECOND SURFACE PORTION OF SAID HEATER CONFRONTING THE BOTTOM SURFACE OF SAID BIMETALLIC STRIP IN AN ADJACENT ONE OF SAID CHANNEL-DEFINING PORTIONS.
References Cited (Backward Citations)
US2520906A
Cited
CA977480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |