Electricity: electrical systems and devices – Miscellaneous
Patent
1985-12-18
1986-12-09
Grimley, A. T.
Electricity: electrical systems and devices
Miscellaneous
339 45M, 339 75MP, 339 76, 361394, 361399, 361413, H05K 716
Patent
active
046284133
ABSTRACT:
An apparatus is disclosed for selectively controlling the insertion, retention and extraction of card cassettes into, in and from associated channels of a card cage. A pair of first and second levers are pivotally mounted at the top and bottom of each channel. Each of the card cassettes includes upper and lower glides, with each glide including a pin at the front of the glide. Each card cassette if freely slideable in its associated channel of the card cage until the pins in its upper and lower glides become seated into detents in the first and second levers in that channel just before a first set of connectors on that card cassette engage a mating second set of connectors in that channel of the card cage. Rotation of the first and second levers in that channel in a first set of directions pushes the pins in the glides of that card cassette horizontally, forcing the first set of connectors on the card cassette to engage the second set of connectors in that channel. At this time, the engaged first and second sets of connectors are in a locked-in condition and require an external force for disengagement. Rotation of the first and second levers in a second set of directions pulls the pins in the glides of that card cassette horizontally, disengaging the first set of connectors on the card cassette from the second set of connectors in that channel.
REFERENCES:
patent: 3311863 (1967-04-01), Beale
patent: 3375408 (1968-03-01), Buhrendorf et al.
patent: 3798507 (1974-03-01), Damon et al.
patent: 3863113 (1975-01-01), Ward
patent: 4544066 (1985-10-01), Koppensteiner et al.
Ecker, M. E. and Laurence, P. R., "Latch", IBM Tech. Discl. Bul., vol. 10, No. 11, Apr. 1968 p. 1952.
Dugas Edward
Grimley A. T.
Hawk Jr. Wilbert
Jameson George
Lau Jane K.
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