Backplane stiffener

Details Backplane stiffener Backplane stiffener

1997-04-07

2000-07-04

Kincaid, Kristine

Electricity: conductors and insulators

Conduits, cables or conductors

Preformed panel circuit arrangement

174135, H05K 100, H01B 700

Patent

active

060841826

ABSTRACT:
A backplane stiffener mounts in a channel defined between parallel rows of connectors on a backplane. In a first embodiment, the stiffener has a substantially U-shaped cross section and has a maximum width less than the width of the channel. The sidewalls are parallel and linear throughout the length of the stiffener. A second embodiment is adapted for use in "dog-legged" connector channels wherein at least one of the connectors in the row is wider than or spatially offset from the remaining connectors. The stiffener is preferably formed from a sheet of pliable material, for example sheet metal which is manipulated to form various features and folded longitudinally to form a rigid member. Rigidity is enhanced in an economic manner which does not interfere with backplane operations.

REFERENCES:
patent: 3341742 (1967-09-01), Klehm, Jr.
patent: 4988577 (1991-01-01), Jamieson
patent: 5198279 (1993-03-01), Beinhaur et al.
patent: 5378545 (1995-01-01), Akulow
patent: 5696353 (1997-12-01), Kanno
patent: 5748114 (1998-05-01), Koehn
IBM Technical Disclosure Bulletin, "Guide Pin Stiffener Bar", vol. 37, No. 04A, p. 135, Apr. 1994.
Machine Design, D.S. Steinberg, "Taking the Shake out of Circuit Boards", vol. 49, No. 21, pp. 96-99, Sep. 22, 1977.
IBM Technical Disclosure Bulletin, "Sandwiched Backplane Between Conductive Stiffeners", vol. 37, No. 04A, pp. 401-401, Apr. 1994.

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