Geometrical instruments
Patent
1980-10-20
1982-08-03
McGlynn, Joseph H.
Geometrical instruments
H01R 1346
Patent
active
043424937
ABSTRACT:
Electrical devices of outdoor electrical receptacles are protected from weather conditions. A protective cover and a waterproofing gasket are pivotally mounted on a plate for movement along a circular path between a fully closed position, in which the gasket prevents water from reaching the device, and a fully open position, in which access to the electrical device is permitted. A leaf spring having a planar movable portion constantly and affirmatively urges the cover to the closed position. In order to ensure a reliable and automatic return of the cover to the closed position, an anti-over-the-center stop prevents a leading end of the cover, which engages the planar spring portion at a contact zone, from moving the latter beyond an imaginary line which extends from the center of curvature of the circular path in a radial direction towards, and at a right angle to, the plane of the spring portion. The cover is easily mounted by snap-type action to the plate under spring tension.
REFERENCES:
patent: 1630401 (1927-05-01), Meyer
patent: 2304870 (1942-12-01), Yost
patent: 3140344 (1964-07-01), Slater et al.
patent: 3189212 (1965-06-01), Bellek
patent: 3252611 (1966-05-01), Weitzman et al.
Allen-Stevens Corp.
McGlynn Joseph H.
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