Head assembly for printed circuit board test fixture
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United States of America Patent
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-
Apr 6, 1993
Grant Date -
N/A
app pub date -
May 18, 1992
filing date -
May 18, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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