Mechanical interlock arrangement for preventing misinstallation

Details Mechanical interlock arrangement for preventing misinstallation Mechanical interlock arrangement for preventing misinstallation

1987-07-27

1988-07-19

Kucia, R. R.

Electricity: electrical systems and devices

Miscellaneous

211 41, 361399, 361394, 439 76, H05K 702

Patent

active

047589280

ABSTRACT:
A mechanical interlock arrangement is disclosed for preventing misinstallation of a plurality of associated PC boards in the mainframe chassis of an electrical or electronic apparatus. Each PC board is mounted to a subpanel which has a mounting flange with a uniquely located key tab. This keying tab is accommodated within a selectively located slot on a member positioned traverse the front face of the mainframe chassis. The keying tab may be located along the top or bottom of the mounting flange and is made of substantially rigid material to prevent such protective keying function from being easily defeated.

REFERENCES:
patent: 2958014 (1960-10-01), Blain
patent: 3603845 (1971-09-01), Beers
patent: 3818280 (1974-06-01), Smith et al.
patent: 3904937 (1975-09-01), Levin
patent: 4377315 (1983-03-01), Grau
patent: 4434537 (1984-03-01), Bean et al.
patent: 4542441 (1985-09-01), Perretta
patent: 4547835 (1985-10-01), Pansaerts et al.
patent: 4630175 (1986-12-01), Lerude et al.

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