Closure fasteners – Ball
Patent
1980-02-12
1982-02-09
Lyddane, William E.
Closure fasteners
Ball
49450, 292145, 292189, 292302, 292DIG46, E05C 1900, E05C 104
Patent
active
043147194
ABSTRACT:
A latch mechanism for limiting the translation of a panel unit slidably secured in a track member includes a slide member secured in the track and adapted to translate therealong. The slide member includes an aperture in the bottom portion thereof which is registrable with any one of a plurality of depressions formed in the bottom of the track member. The slide member includes a pair of opposed, upwardly extending end tabs which retain a latch member therebetween. The latch member includes an aperture registrable with the aperture of the slide member, and is translatable transversely with respect to the track. A ball is disposed between the latch member and the slide member, and is adapted to fall gravitally into the aperture of the slide member and seat in a depression in the track. With the latch aperture aligned with the ball and slide aperture, the slide member may be translated along the track by unseating the ball from the track aperture. With the latch member translated so that the apertures do not align, there is not sufficient clearance for the ball to unseat from the depression it occupies and the slide member cannot be translated.
REFERENCES:
patent: 254510 (1882-03-01), Slater
patent: 948598 (1910-02-01), Stuart
patent: 3014745 (1961-12-01), Kytta
patent: 3415560 (1968-12-01), Hawkins
patent: 3674297 (1972-07-01), Hawkins
patent: 4190271 (1980-02-01), Hawkins
Cohen Howard
Lyddane William E.
Zimmerman Harris
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