Phaseable impedance device

Details Phaseable impedance device Phaseable impedance device

1977-10-31

1980-02-12

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338171, 338202, H01C 1000

Patent

active

041886062

ABSTRACT:
Mechanism and method for mounting at least a pair of wiper contact springs to a rotor such that the angular relationship between the two wiper contact springs may be very closely controlled. In one embodiment a first contact spring is permanently attached to a rotor, while a second contact spring is initially attached to the rotor by heat staking one end about a pivot point and placing the other end in a latch which holds the spring in place but permits it to be pivoted to some extent as desired. The rotor is then tested to determine the exact angular displacement between these contact springs. If the measured displacement is different from that desired, the second contact spring is pivoted to a corrected position and then cemented in place. Extension to more than a pair of contact springs is obvious.

REFERENCES:
patent: 2195813 (1940-04-01), DeGiers
patent: 2403989 (1946-07-01), Mallina
patent: 2551989 (1951-05-01), Wilson
patent: 2671842 (1954-03-01), Collinson
patent: 3187288 (1965-06-01), Peters

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