Resumes
Resumes
Shigeo Nakanishi Phones & Addresses
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57 Asbury Ln, Elyria, OH 44035 (440) 322-3332
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679 Sonora Ct, Berea, OH 44017 (440) 234-8830
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495 Race St, Berea, OH 44017 (440) 234-1985
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Dorset, OH
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Cicero, IN
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Albuquerque, NM
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Encino, CA
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Brimfield, IL
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Elwood, IN
Publications
Us Patents
Precision Tunable Resonant Microwave Cavity
View pageUS Patent:
46425233, Feb 10, 1987
Filed:
Feb 11, 1985
Appl. No.:
6/700255
Inventors:
Shigeo Nakanishi - Berea OH
Frank S. Calco - Olmsted Falls OH
August R. Scarpelli - Litchfield OH
Frank S. Calco - Olmsted Falls OH
August R. Scarpelli - Litchfield OH
Assignee:
The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC
National Aeronautics and Space Administration - Washington DC
International Classification:
H01J 2700
US Classification:
31511181
Abstract:
A coaxial probe extends into a microwave cavity through a tube. One end of the tube is retained in a spherical joint attached in the cavity wall. This allows the coaxial probe to be pivotally rotated. The coaxial probe is slideable within the tube thus allowing the probe to be extended toward or retracted from the center of the cavity. A tunable wall in the cavity is precisely positioned by a plurality of threaded rods extending through threaded bushings which are geared together. Thus, rotation of one of the bushings causes rotation of the other bushings simultaneously whereby the tuning wall is accurately positioned. Means are provided for moving the tube through which the coaxial probe extends in both a side to side and back and forth motion.