Compression journal
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United States of America Patent
Stats
-
Feb 20, 2007
Grant Date -
Nov 29, 2001
app pub date -
Feb 2, 2001
filing date -
Feb 10, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A compression journal for transfer of microwave signals across a rotating interface of a rotary joint comprises a silver impregnated graphite split ring stator which surrounds and is in contact with a coin silver sleeve of a shaft rotor when a rotor assembly is positioned within a stator assembly. At least one O-ring is placed over the outside of the split ring stator to allow slight compression of the silver/graphite split ring stator to maintain continuous electrical contact between the stator and the rotor. A beryllium-copper radial shield is secured to the end of the compression journal securing it within a cavity of the stator assembly. The compression journal floats within the stator assembly to allow rotor/stator concentricities to adjust and seat properly for long term performance.
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