Patent US3147798A successfully refreshed from Google Patents.
US3147798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum tube retainer and heat shield
Assignee: North American Aviation Corp
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Filing: 1961-02-27
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Granted: 1964-09-08
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert E Mosher
- 👤 Clarence E Taylor
- 👤 John W Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:08
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20436; H05K7/20445; H01; H01J; H01J19/00; H01J19/74; H01J5/00; H01J5/02; H01J5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A RETAINER SUITABLE FOR RETAINING AN ELECTRONIC COMPONENT, A HEAT SINK MEMBER HAVING A RIGID PORTION AND A SPRINGLESS WRAP-AROUND FLEXIBLE PORTION, SAID SPRINGLESS WRAP-AROUND FLEXIBLE PORTION BEING FIXEDLY ATTACHED TO SAID RIGID PORTION, SAID SPRINGLESS WRAP-AROUND FLEXIBLE PORTION HAVING FREE ENDS PARALLEL TO THE CYLINDER AXIS, SPRING GUIDE MEMBERS FABRICATED OF SPRING METAL, AND HAVING HOOK-LIKE RAILS FIXEDLY ATTACHED TO SAID SPRINGLESS WRAP-AROUND FLEXIBLE PORTION PROXIMATE TO EACH OF SAID FREE ENDS, AND LONGITUDINAL SPRING MEANS FOR SLIDING LONGITUDINALLY OVER SAID HOOK-LIKE EDGES OF SAID SPRING GUIDES, AND ENGAGING EACH OF SAID HOOK-LIKE RAILS OF SAID SPRING GUIDES, DRAWING THEM TOGETHER, AND WRAPPING SAID FLEXBLE PORTION OF SAID HEAT SINK MEMBER SUBSTANTIALLY CLOSELY AROUND 360 DEGREES OF THE ENVELOPE OF THE COMPONENT.
Claim 2
Dependent Claim
124 words
IN A RETAINER SUITABLE FOR RETAINING AN ELECTRONIC COMPONENT, A HEAT SINK MEMBER HAVING A RIGID PORTION AND A SPRINGLESS WRAP-AROUND FLEXIBLE PORTION, SAID SPRINGLESS WRAP-AROUND FLEXIBLE PORTION BEING FIXEDLY ATTACHED TO SAID RIGID PORTION, SAID SPRINGLESS WRAP-AROUND FLEXIBLE PORTION HAVING FREE ENDS PARALLEL TO THE CYLINDER AXIS, SPRING GUIDE MEMBERS FABRICATED OF SPRING METAL, AND HAVING HOOK-LIKE RAILS FIXEDLY ATTACHED TO SAID SPRINGLESS WRAP-AROUND FLEXIBLE PORTION PROXIMATE TO EACH OF SAID FREE ENDS, AND LONGITUDINAL SPRING MEANS FOR SLIDING LONGITUDINALLY OVER SAID HOOK-LIKE EDGES OF SAID SPRING GUIDES, AND ENGAGING EACH OF SAID HOOK-LIKE RAILS OF SAID SPRING GUIDES, DRAWING THEM TOGETHER, AND WRAPPING SAID FLEXBLE PORTION OF SAID HEAT SINK MEMBER SUBSTANTIALLY CLOSELY AROUND 360 DEGREES OF THE ENVELOPE OF THE COMPONENT.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |