Geometrical instruments
Patent
1974-05-20
1976-04-13
McGlynn, Joseph H.
Geometrical instruments
174 67, 220290, 220291, H01R 1344
Patent
active
039500551
ABSTRACT:
A threaded cover is pivotally secured to a strap that is hinged to the base of the cover plate, the strap and base having cooperative means for holding the cover in an up position away from the access port to the receptacle merely by raising the strap to a position substantially perpendicular from the base, such as by the strap being L-shaped with a loop in the leg of the L encircling a pin secured to the base with the loop being shaped to slide over the pin when the cover is raised and to bear against the base in a locked open position.
REFERENCES:
patent: 1334172 (1920-03-01), Ryerson
patent: 1474758 (1923-11-01), Bissell
patent: 1836811 (1931-12-01), McNeal
patent: 1912277 (1933-05-01), Kaye
patent: 2488188 (1949-11-01), Halvorson
patent: 3140344 (1964-07-01), Slater et al.
patent: 3225971 (1965-12-01), Curci
patent: 3258731 (1966-06-01), Still et al.
Samuels Allen J.
Wiley Roy O.
Feinberg Craig R.
McGlynn Joseph H.
Telfer G. H.
Westinghouse Electric Corporation
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