Three point lead screw positioning apparatus for a cavity tuning

Details Three point lead screw positioning apparatus for a cavity tuning Three point lead screw positioning apparatus for a cavity tuning

1992-01-27

1993-09-07

Lee, Benny T.

Wave transmission lines and networks

Resonators

Cavity resonator

315 554, H01P 706

Patent

active

052433102

ABSTRACT:
Three lead screws are provided for adjusting the position of a traversing plate. Each of the three lead screws is threaded through a collar that is press fitted through the center of one of three pinion gears. A sun gear meshes with all three pinion gears and transversely moves the three lead screws upon actuation of a drive gear. The drive gear meshes with the sun gear and is driven by a handle or servo motor. When the handle or servo motor rotates the drive gear, the sun gear rotates causing the three pinion gears to rotate, thus causing transverse movement of the three lead screws and, accordingly, transverse movement of the transversing plate. When the drive gear rotates, the traversing plate is driven in and out of a microwave cavity. Thus, the length or size of the cavity can be tuned while maintaining the traversing plate in an exact parallel relationship with an opposing plate on another end of the cavity.

REFERENCES:
patent: 2263184 (1941-11-01), Mouromtseff et al.
patent: 2405229 (1946-08-01), Mueller et al.
patent: 2833926 (1958-05-01), Silvey et al.
patent: 2856557 (1958-10-01), Allen
patent: 2905011 (1959-09-01), Armstrong et al.
patent: 2930928 (1960-03-01), Lebacqz
patent: 3264513 (1966-08-01), Bagnall
patent: 3441794 (1969-04-01), Chun
patent: 4243961 (1981-01-01), Faillon et al.
patent: 4792772 (1988-12-01), Asmussen

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