Patent US3284597A successfully refreshed from Google Patents.
US3284597A
Expired / Lapsed
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Electrical control device of the thermal delay type
Assignee: GTE Sylvania Inc
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Filing: 1965-04-30
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Granted: 1966-11-08
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Hollis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:19
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/10; H01H61/00; H01H61/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
AN ELECTRICAL CONTROL DEVICE OF THE THERMAL DELAY TYPE COMPRISING: A PAIR OF TERMINAL POSTS; A FIXED ELECTRICAL CONTACT MOUNTED ON ONE OF SAID TERMINAL POSTS; A SUBSTANTIALLY U-SHAPED PRIMARY BIMETAL MEMBER, THE LEGS THEREOF BEING OF UNEQUAL LENGTH, THE OUTSIDE FACE THEREOF BEING THE HIGH EXPANSION SIDE AND THE INSIDE FACE THEREOF BEING THE LOW EXPANSION SIDE, THE OUTSIDE FACE OF THE FREE END OF THE LONGER LEG BEING SECURED TO THE OTHER OF SAID TERMINAL POSTS; A SUBSTANTIALLY FLAT SECONDARY BIMETAL MEMBER, NARROWER IN WIDTH THAN SAID PRIMARY BIMETAL MEMBER, THE UPPER FACE THEREOF BEING THE LOW EXPANSION SIDE AND THE LOWER FACE THEREOF BEING THE LOW EXPANSION SIDE, SAID SECONDARY BIMETAL MEMBER BEING AFFIXED AT ONE END OF THE LOWER FACE THEREOF TO THE OUTSIDE FACE OF THE FREE END OF THE SHORTER LEG OF SAID PRIMARY BIMETAL MEMBER; A MOVABLE ELECTRICAL CONTACT MOUNTED ON THE OTHER END OF THE LOWER FACE OF SAID SECONDARY BIMETAL MEMBER, SAID MOVABLE ELECTRICAL CONTACT BEING NORMALLY CLOSED WITH RESPECT TO SAID FIXED ELECTRICAL CONTACT; AND A HEATER COIL WRAPPED ABOUT THE LONGER LEG OF SAID PRIMARY BIMETAL MEMBER.
Claim 2
Dependent Claim
188 words
AN ELECTRICAL CONTROL DEVICE OF THE THERMAL DELAY TYPE COMPRISING: A PAIR OF TERMINAL POSTS; A FIXED ELECTRICAL CONTACT MOUNTED ON ONE OF SAID TERMINAL POSTS; A SUBSTANTIALLY U-SHAPED PRIMARY BIMETAL MEMBER, THE LEGS THEREOF BEING OF UNEQUAL LENGTH, THE OUTSIDE FACE THEREOF BEING THE HIGH EXPANSION SIDE AND THE INSIDE FACE THEREOF BEING THE LOW EXPANSION SIDE, THE OUTSIDE FACE OF THE FREE END OF THE LONGER LEG BEING SECURED TO THE OTHER OF SAID TERMINAL POSTS; A SUBSTANTIALLY FLAT SECONDARY BIMETAL MEMBER, NARROWER IN WIDTH THAN SAID PRIMARY BIMETAL MEMBER, THE UPPER FACE THEREOF BEING THE LOW EXPANSION SIDE AND THE LOWER FACE THEREOF BEING THE LOW EXPANSION SIDE, SAID SECONDARY BIMETAL MEMBER BEING AFFIXED AT ONE END OF THE LOWER FACE THEREOF TO THE OUTSIDE FACE OF THE FREE END OF THE SHORTER LEG OF SAID PRIMARY BIMETAL MEMBER; A MOVABLE ELECTRICAL CONTACT MOUNTED ON THE OTHER END OF THE LOWER FACE OF SAID SECONDARY BIMETAL MEMBER, SAID MOVABLE ELECTRICAL CONTACT BEING NORMALLY CLOSED WITH RESPECT TO SAID FIXED ELECTRICAL CONTACT; AND A HEATER COIL WRAPPED ABOUT THE LONGER LEG OF SAID PRIMARY BIMETAL MEMBER.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |