Supports: racks – Special article – Platelike
Patent
1978-10-03
1980-05-06
Tolin, Gerald P.
Supports: racks
Special article
Platelike
361415, H05K 718
Patent
active
042013038
ABSTRACT:
A chassis for printed circuit (P.C.) boards composed of a pair of parallel end plates having perforation patterns in the corners to receive pronged keys fitting into the ends of multiple channelled rails which extend between the end plates in parallelism with each other and are provided with spaced pairs of notches in rows respectively serving as receiving guides for the P.C. boards and positioning means for the ends of grooved card guides which extend between pairs of said rails and disposed respectively in parallel planes common with opposite edges of said end plates. Self-tapping screws extend through certain perforations in said patterns thereof and also through a hole in each key for threaded engagement with the end of a certain channel of each of said rails to maintain said rails against turning and thereby align opposite guide and positioning notches accurately with each other. A simple manually operable tool is detachably connected to the chassis for convenient use to extract and insert P.C. boards. Connecting nuts or heads of bolts are slidably positioned in certain channels of said rails to prevent turning and to secure covers and/or mother boards or the like to said chassis, and a slidable locking plate secures the P.C. boards against undesired removal from the chassis.
REFERENCES:
patent: 3271626 (1966-09-01), Howrilka
patent: 3691430 (1972-09-01), Freitag
patent: 3716760 (1973-02-01), Bertellotti
patent: 3814990 (1974-06-01), Warman
patent: 3838777 (1974-10-01), Thornicroft
patent: 3878438 (1975-04-01), Weisman
Just C. Hercus
Tolin Gerald P.
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