The Curran Company

Stan Zielinski

Joseph C Weibler

Dale G Svetanoff

Michael B Slocum

Michael O Hatfield

Matthew Squire

A tuner ( ) for a reverberation chamber is provided comprising a plurality of electrically conductive surfaces ( ) attached to each other in a Z-fold configuration. Each lateral edge ( ) of the tuner is contacted with a generally planar, laterally positioned substrate ( ) which prevents lateral extension or medial compression of the Z-fold. Optionally, end substrates ( ) are attached to each of the two leading edges ( ). Also, a device minimizes electromagnetic radiation leakage along a shaft including: a bearing housing; a plurality of thrust bearings contacting the bearing housing and axially juxtaposed along the shaft so that at least two thrust bearings oppose each other; a radial bearing intermediate each thrust bearing; and a provision for adjustably moving the thrust bearings toward each other so as to compress the thrust bearings against the bearing housing.

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Glendale Heights, IL, United States of America

Stan Zielinski