Tuning screw having a resilient plastics bush which supports the

Details Tuning screw having a resilient plastics bush which supports the Tuning screw having a resilient plastics bush which supports the

1984-08-27

1987-03-03

Laroche, Eugene R.

Wave transmission lines and networks

Long line elements and components

333232, 333263, 333 99R, 411378, 411366, 411 91, 411113, H03J 322

Patent

active

046478833

ABSTRACT:
A microwave tuning device including a cylindrical metal bush having an internal screw thread. A metal rod-like plunger is axially displaceable within the plastics bush. A plastics bush is fitted over one end of the plunger and fixed thereto by means of splines and grooves. The bush is inserted into the internal screw thread so as to form a corresponding mating screw thread on its outer periphery. A plurality of fingers extend from one end of the metal bush and resiliently engage the outer periphery of a plain portion of the plunger so as to provide resistance to unintentional rotation of the plunger in the metal bush and electrical interconnection therebetween.

REFERENCES:
patent: 2666334 (1954-01-01), Nalle
patent: 3252115 (1966-05-01), Gordon
patent: 3618135 (1971-11-01), Weller
patent: 3885239 (1975-05-01), Zaleski
patent: 4035749 (1977-07-01), Slocum et al.

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