Housing arrangements for electrical or electronic equipment

Details Housing arrangements for electrical or electronic equipment Housing arrangements for electrical or electronic equipment

1988-12-07

1990-02-20

Tolin, Gerald P.

Electricity: electrical systems and devices

Miscellaneous

174 35R, 361415, H05K 900

Patent

active

049031708

ABSTRACT:
A housing arrangement for equipment, such as telephone exchange equipment or transmission equipment, in which individual circuit units are formed on printed circuit boards mounted side-by-side on a shelf unit, wherein the shelf unit forms a first electromagnetic screening enclosure, and interconnections between said circuit units, external connections to those units, are made by way of a second electromagnetic screening enclosure having one face in common with the first enclosure.

REFERENCES:
patent: 3816911 (1974-06-01), Knappenberger
patent: 3904937 (1975-09-01), Levin
patent: 4134631 (1979-01-01), Conrad
patent: 4203147 (1980-05-01), Gabr
patent: 4301494 (1981-11-01), Jordan
patent: 4370515 (1983-01-01), Donaldson
patent: 4464544 (1984-08-01), Klein
patent: 4631641 (1986-12-01), Brombal
patent: 4716493 (1987-12-01), Zelkowitz
patent: 4751613 (1988-06-01), Werdin

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