Patent US3987646A successfully refreshed from Google Patents.
Patent US3119916A successfully refreshed from Google Patents.
US3119916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch for use over substantial ranges of temperature
Assignee: Burgess Products Co Ltd
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Filing: 1960-09-16
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Granted: 1964-01-28
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Expires: 1980-09-16
Abstract
No abstract record available.
Inventors
- 👤 Holden Brian Astbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:29
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/26; H01H13/28; H01H13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN ELECTRIC SWITCH SUBJECT TO LARGE TEMPERATURE CHANGES COMPRISING A BASE PIECE OF INSULATING CERAMIC MATERIAL HAVING A GROUND PLANE FACE, A PLURALITY OF SPACED HOLES THROUGH SAID BASE PIECE PERPENDICULAR TO SAID FACE, METALLIC RIVET SLEEVES TRAVERSING SAID HOLES, AND SWITCH COMPONENTS SECURED EACH BY ONE END OF ONE OF SAID SLEEVES UPON SAID FACE, WHICH SERVES AS A REFERENCE FACE FOR THE CORRELATION OF SAID COMPONENTS IN MUTUAL ASSEMBLY, A RESILIENT WASHER ON THE OTHER END OF EACH SLEEVE BEARING ON A SURFACE OF SAID BASE PIECE OPPOSITE AND PARALLEL TO SAID PLANE FACE FOR COMPENSATING DIFFERENTIAL EXPANSION OF SAID CERAMIC BASE AND SAID METALLIC SLEEVES, AND MEANS ENGAGING SAID OTHER END OF EACH SLEEVE AND SAID OPPOSITE SURFACE TO PREVENT ANGULAR MOVEMENT OF SAID SLEEVE.
Claim 2
Dependent Claim
128 words
AN ELECTRIC SWITCH SUBJECT TO LARGE TEMPERATURE CHANGES COMPRISING A BASE PIECE OF INSULATING CERAMIC MATERIAL HAVING A GROUND PLANE FACE, A PLURALITY OF SPACED HOLES THROUGH SAID BASE PIECE PERPENDICULAR TO SAID FACE, METALLIC RIVET SLEEVES TRAVERSING SAID HOLES, AND SWITCH COMPONENTS SECURED EACH BY ONE END OF ONE OF SAID SLEEVES UPON SAID FACE, WHICH SERVES AS A REFERENCE FACE FOR THE CORRELATION OF SAID COMPONENTS IN MUTUAL ASSEMBLY, A RESILIENT WASHER ON THE OTHER END OF EACH SLEEVE BEARING ON A SURFACE OF SAID BASE PIECE OPPOSITE AND PARALLEL TO SAID PLANE FACE FOR COMPENSATING DIFFERENTIAL EXPANSION OF SAID CERAMIC BASE AND SAID METALLIC SLEEVES, AND MEANS ENGAGING SAID OTHER END OF EACH SLEEVE AND SAID OPPOSITE SURFACE TO PREVENT ANGULAR MOVEMENT OF SAID SLEEVE.
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |