Detenting lift cover

Details Detenting lift cover Detenting lift cover

1981-02-25

1983-05-03

McQuade, John

Geometrical instruments

174 67, 220291, 220292, H01R 1344

Patent

active

043818790

ABSTRACT:
A weatherproof housing and rotatable cover have radial lugs which are engaged when the cover is closed in a specific position and rotated clockwise. The cover is hingedly attached to the housing by a J-shaped arm and the cover has a skirt, one surface of which faces walls formed on the arm. The skirt has cam and stop surfaces defining a recess which engages a wall on the arm in the specific position, acting as a detent to inhibit rotational movement of the cover when it is open. Limited tilting movement of the cover is permitted by a sinuous spring in the mounting of the cover on the arm. A stop pin on the skirt prevents the cover from being rotated by 180.degree..

REFERENCES:
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patent: 1334172 (1920-03-01), Ryerson
patent: 1565645 (1925-12-01), Hills
patent: 1912277 (1933-05-01), Kaye
patent: 2072608 (1937-03-01), Smith
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patent: 2715212 (1955-08-01), Swanson et al.
patent: 3140344 (1964-07-01), Slater et al.
patent: 3950055 (1976-04-01), Samuels et al.
patent: 4342493 (1982-08-01), Grenell

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