Patent US3347995A successfully refreshed from Google Patents.
Patent US3204807A successfully refreshed from Google Patents.
US3204807A
Expired / Lapsed
US
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Hinged electrical cover plate closure
Assignee: Sierra Electric Corp
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Filing: 1963-12-23
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Granted: 1965-09-07
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E V Ramsing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:58
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/40; H02B1/44; H01; H01H; H01H9/00; H01H9/02; H01H9/04; H01H9/20; H01H9/28; H01H9/287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ELECTRICAL DEVICE COVER ASSEMBLY COMPRISING A BASE PLATE APPLICABLE TO A MOUNTING SURFACE AND CONTAINING AN ELECTRICAL DEVICE ACCESS OPENING, A CAVITATED COVER OVERLYING SAID OPENING, A HINGE PIN EXTENDING INSIDE THE COVER BETWEEN OPPOSITE SIDES THEREOF AT AND IN SPACED PARALLEL RELATION WITH A THIRD SIDE OF THE COVER HAVING TRANSVERSELY SHIFTABLE FULCRAM EDGE BEYOND SAID OPENING, AND A SPRING METAL HINGE CLIP GENERALLY U-SHAPED IN CROSS SECTION AND THROUGH WHICH THE HINGE PIN EXTENDS, ONE SIDE OF SAID CLIP BEING SECURED TO THE BASE PLATE AND THE OTHER SIDE BEING ENGAGED AGAINST THE HINGE PIN SO THAT AS THE COVER IS PROGRESSIVELY SWUNG OPEN SAID EDGE SHIFTS TRANSVERSELY FROM ONE TO THE OTHER SIDES OF AN AXIAL PLANE OF THE HINGE PIN NORMAL TO THE PLATE WHEREBY THE CLIP INITIALLY RESISTS OPENING THE COVER AND THEREAFTER YIELDINGLY HOLDS THE COVER IN OPEN POSITION.
Claim 2
Dependent Claim
146 words
AN ELECTRICAL DEVICE COVER ASSEMBLY COMPRISING A BASE PLATE APPLICABLE TO A MOUNTING SURFACE AND CONTAINING AN ELECTRICAL DEVICE ACCESS OPENING, A CAVITATED COVER OVERLYING SAID OPENING, A HINGE PIN EXTENDING INSIDE THE COVER BETWEEN OPPOSITE SIDES THEREOF AT AND IN SPACED PARALLEL RELATION WITH A THIRD SIDE OF THE COVER HAVING TRANSVERSELY SHIFTABLE FULCRAM EDGE BEYOND SAID OPENING, AND A SPRING METAL HINGE CLIP GENERALLY U-SHAPED IN CROSS SECTION AND THROUGH WHICH THE HINGE PIN EXTENDS, ONE SIDE OF SAID CLIP BEING SECURED TO THE BASE PLATE AND THE OTHER SIDE BEING ENGAGED AGAINST THE HINGE PIN SO THAT AS THE COVER IS PROGRESSIVELY SWUNG OPEN SAID EDGE SHIFTS TRANSVERSELY FROM ONE TO THE OTHER SIDES OF AN AXIAL PLANE OF THE HINGE PIN NORMAL TO THE PLATE WHEREBY THE CLIP INITIALLY RESISTS OPENING THE COVER AND THEREAFTER YIELDINGLY HOLDS THE COVER IN OPEN POSITION.
References Cited (Backward Citations)
US3029972A
Cited
US3140344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |