Electricity: electrical systems and devices – Miscellaneous
Patent
1989-08-31
1990-08-07
Thompson, Gregory D.
Electricity: electrical systems and devices
Miscellaneous
211 41, 361415, H01R 2368
Patent
active
049472887
ABSTRACT:
The present invention relates to a printed circuit board provided with electrical contact devices (7) and intended to be mounted in the back plane of a card frame (2) such as to form a magazine (1) in which printed circuit cards (6) having electrical contact devices (8) corresponding to the contact devices (7) on the board can be inserted at right angles to the back plane. The circuit board (3) forms an electrical connecting unit for the circuit cards in the back plane of the magazine. In accordance with the invention, the circuit board is configured to provide a self-supporting and stiffening structure in the form of a sandwich element (10).
REFERENCES:
patent: 3810433 (1974-05-01), Posner
patent: 4134631 (1979-02-01), Conrad et al.
patent: 4158220 (1979-06-01), Yamamoto et al.
patent: 4697858 (1987-10-01), Balakrishnan
Ernolf Stig C.
Kassman Bjorn T.
Kjellsson Rolf I. B.
Nilsson Per-Ove
Olsson Karl Gustaf
Telefeonaktiebolaget L M Ericsson
Thompson Gregory D.
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