Head assembly for printed circuit board test fixture

Details Head assembly for printed circuit board test fixture Head assembly for printed circuit board test fixture

1992-05-18

1993-04-06

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 725, 324158P, G01R 102, G01R 104

Patent

active

052006948

ABSTRACT:
A head assembly for a vacuum actuated printed circuit board test fixture includes a top plate adapted for receiving a printed circuit board thereon, a probe plate having a plurality of spring-loaded contact probes thereon, and a support assembly for supporting the top plate in sealed relation above the probe plate. The support assembly includes a primary seal member having a channel formed therein and a resilient secondary seal member in the channel which cooperates with the primary seal member to provide a seal between the top plate and the probe plate around the entire perimeter of the top plate and to support the top plate so that it is movable toward the probe plate by resiliently compressing the secondary seal member.

REFERENCES:
patent: 4230985 (1980-10-01), Matrone et al.
patent: 4255037 (1981-03-01), Meadows et al.
patent: 4344033 (1982-08-01), Stowers et al.
patent: 4352061 (1982-09-01), Matrone
patent: 4573009 (1986-02-01), Fowler et al.
patent: 4667155 (1987-05-01), Coiner et al.
patent: 4694245 (1987-09-01), Frommes
patent: 4780086 (1988-10-01), Jenner
patent: 4799006 (1989-01-01), Strohochneider
patent: 4841231 (1989-06-01), Angelucci

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