US3663990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge
Assignee: Pacific Associated Lighting inc
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Filing: 1969-12-11
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Granted: 1972-05-23
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Expires: 1989-12-11
Abstract
Abstract A lighting fixture enclosing lamps in a wall-mounted container having a hinge that permits free removal of the cover in a limited range of open positions and permits the cover to be locked in a fully open position for access to the lamps contained therein, the hinge being of the type without a pintle and formed with a first member having a receiving flute with a constricted opening and a second member having a flared edge insertable into the receiving flute allowing limited relative swing movement between the two members.
Inventors
- 👤 Berwyn E Shane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:34
CPC Classifications
E; E05; E05D; E05D1/00; E05D1/04; F; F21; F21S; F21S8/00; F21S8/03; F21S8/033; F21V; F21V17/00; F21V17/10; F21V17/107; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A hinge comprising: a first member having a longitudinal receiving flute with constricting lip and an internal bearing surface having a longitudinal groove; a second member having a longitudinal flared edge insertable into said flute for limited swinging movement of the second member relative to the first member and limited rectilinear movement of the second member relative to the first member in a direction generally normal to the axis about which relative swinging movement between said members occurs when said members assume a predetermined rotational position relative to one another; said flared edge having a terminal element selectively engageable with said longitudinal groove responsive to rectilinear movement of the second member relative to the first member when in said predetermined rotational position to lock said first and second members against relative swinging movement in either direction at said predetermined rotational position relative to one another, and a divergent appendage which, in cooperation with said constricting lip upon insertion of said edge into said flute, prevents lateral displacement of said first member relative to said second member during relative swinging movement of said members through a predetermined arc.
Claim 2
Dependent Claim
187 words
A hinge comprising: a first member having a longitudinal receiving flute with constricting lip and an internal bearing surface having a longitudinal groove; a second member having a longitudinal flared edge insertable into said flute for limited swinging movement of the second member relative to the first member and limited rectilinear movement of the second member relative to the first member in a direction generally normal to the axis about which relative swinging movement between said members occurs when said members assume a predetermined rotational position relative to one another; said flared edge having a terminal element selectively engageable with said longitudinal groove responsive to rectilinear movement of the second member relative to the first member when in said predetermined rotational position to lock said first and second members against relative swinging movement in either direction at said predetermined rotational position relative to one another, and a divergent appendage which, in cooperation with said constricting lip upon insertion of said edge into said flute, prevents lateral displacement of said first member relative to said second member during relative swinging movement of said members through a predetermined arc.
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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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |