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Slotted Bracket for Installation of Optional Circuit Cards With Electrical Grounding Features

IP.com Disclosure Number: IPCOM000038692D
Original Publication Date: 1987-Feb-01
Included in the Prior Art Database: 2005-Jan-31
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Related People

Davidge, RV: AUTHOR [+3]

Abstract

A technique is described whereby a slotted bracket, forming a part of the rear base assembly of a computer, is designed so as to allow installation of a series of circuit cards, which in turn have brackets attached to the base assembly. The slotted bracket is unique in that it forms a low impedance electrical ground between the base casting of the computer and the circuit card brackets without the need of adding additional parts to provide the ground. The slotted bracket 10, as shown in the front and side views of the figure, has circuit card 11 plugged into connector 12 which is part of planar board assembly 13 mounted onto die cast base 14. Circuit card 11 is also connected to an L-shaped card bracket 15 by means of connector 16 fastened with screws.

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Slotted Bracket for Installation of Optional Circuit Cards With Electrical Grounding Features

A technique is described whereby a slotted bracket, forming a part of the rear base assembly of a computer, is designed so as to allow installation of a series of circuit cards, which in turn have brackets attached to the base assembly. The slotted bracket is unique in that it forms a low impedance electrical ground between the base casting of the computer and the circuit card brackets without the need of adding additional parts to provide the ground. The slotted bracket 10, as shown in the front and side views of the figure, has circuit card 11 plugged into connector 12 which is part of planar board assembly 13 mounted onto die cast base 14. Circuit card 11 is also connected to an L-shaped card bracket 15 by means of connector 16 fastened with screws. Die cast base 14 includes opening 17 which is partially closed by means of slotted bracket 10, through which connector 19, fastened to L-shaped card bracket 15, may pass. All of the connectors are used to make electrical connections to external devices; however, some circuits have no external connectors. Circuit card 11 is installed by pushing downward so that the appropriate connector 12 is connected as well as pushing the lower end of card bracket 15 into contact area 20. The lower portion of slotted bracket 10 has a slotted tab 21, which extends toward the front, and a contact tab 22, which extends downward so as to pro...