Adjustable low loss capacitor with slotted rotor
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United States of America Patent
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-
Dec 8, 1981
Grant Date -
N/A
app pub date -
Jan 16, 1980
filing date -
Jan 16, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotor for an adjustable low loss capacitor having a hollow cylindrical stator with an internally threaded bushing at one end, an axially adjoining insulative cylindrical body, a conductive end member and concentric radially spaced conductive tubes inside said insulative cylindrical body, comprises a rotatable cylindrical screw body having externally threaded portions for engaging internal threading of the bushing. The threaded portions are axially separated by an unthreaded intermediate portion of reduced diameter formed with three slots whose inner edges define an equilateral triangle axially of the screw body. The slots define three resilient springy webs each extending 120.degree. circumferentially of the screw body. Corners of each web are disposed in registration with the other two webs axially of the screw body. The intermediate portion is deformed slightly to misalign the two threaded portions of the screw body. When the rotor is screwed into the stator, the misaligned threaded portions are held in precise alignment by the springy web portions, and the rotor is frictionally locked in place in the stator.
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