Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Patent
1984-09-28
1986-05-20
Albritton, Clarence L.
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
74473R, 338160, H01C 1016
Patent
active
045904545
ABSTRACT:
A control assembly comprises a housing; a control lever extending from the housing and pivotally mounted therein; spring means arranged in the housing and effective to return the control lever automatically to a neutral position; and a potentiometer for converting movement of the control lever relative to the housing from the aforesaid neutral position to an electrical signal. According to the invention, the spring means (4) comprises two mutually connected tubular parts (8,9), between which the end of the control lever (3) located in the housing (2) is mounted for pivotal, but not rotational, movement, wherein in the neutral position of the control lever (3) the longitudinal axis of respective tubular parts (8,9) extends substantially at right angles to the longitudinal axis of the lever. The tubular parts (8,9) are axially movable relative to the housing (2) against the action of a coil spring (12,13) mounted in each of a respective one of the tubular parts and acting between the respective tubular parts and the housing (12). The control assembly further comprises a sliding-contact potentiometer (5) having a first part (30) which is connected to the tubular parts (8,9) and extends parallel with the axial extension thereof, and a second part (31) which is firmly secured relative to the housing (2).
REFERENCES:
patent: 4042902 (1977-08-01), Meyer et al.
patent: 4091234 (1978-05-01), Bristow
patent: 4172248 (1979-10-01), Okuya
patent: 4375631 (1983-03-01), Goldberg
Albritton Clarence L.
Hydrino AB
Lateef M. M.
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