Electricity: electrical systems and devices – Miscellaneous
Patent
1988-06-03
1989-08-08
Askin, Laramie E.
Electricity: electrical systems and devices
Miscellaneous
174138D, 361415, 411508, 439 92, 439444, H05K 900, H05K 714, F16B 1900, H01R 426
Patent
active
048558737
ABSTRACT:
An improved standoff for use in assembly of an electronics device includes a generally cylindrical body with a bore hole through the longitudinal axis. A plurality of reinforcing fin-shaped members disposed radially about the outer surface provide additional rigidity to the structure as well as providing surfaces at each end of the standoff upon which circuit boards may rest. A plurality of clips may be moved under compression and passed through holes on a circuit board. Once they have passed through, they will elastically return to their normal position thus loosely, but securely, holding the circuit boards together. This allows the standoffs to hold the circuit boards together, without the use of additional nuts and bolts and conventional spacers, and also allows the passing of final assembly screws through the longitudinally bore of the spacer. An electrically conductive stamped metal spring clip is provided over a mounting post and serves the dual function of providing electrical contact between grounded conductors on a circuit board and the equipment enclosure, as well as providing a spring to compensate for mechanical tolerances and to assure the application of sufficient stress to an assembly screw to maintain the apparatus in a dependable assembly state irrespective of subsequent stress relaxation in any plastic components.
REFERENCES:
patent: D291278 (1987-08-01), Hill
patent: 2442754 (1948-06-01), Beam
patent: 4063788 (1977-12-01), Latasiewicz et al.
patent: 4585902 (1986-04-01), Munroe
patent: 4713633 (1987-12-01), Okawa et al.
Wang, J. P., "Straight Molded Locking Post", IBM Technical Disclosure Bulletin, vol. 24, No. 7B, Dec. 1981, pp. 3923 and 3924.
Bhargava Vikram
Heberling James R.
Askin Laramie E.
Hayes Microcomputer Products, Inc.
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