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Class 338/134 - Individually operated concentric shaft type


Subclass of Class 338 - Electrical resistors
Definition: Subject matter wherein the resistors are arranged in tandem
No. of patents: 17
Last issue date: 12/11/2001


NumberTitleIssue Date
6329898Multiple operation type electrical part
In a multiple operation type electrical part of the invention, a clicking member is disposed between an insulating base member, being a component part of a first rotary electrical part, and a second rotary member, being a component part of a second rotary...
12/11/2001
6041868Mechanism for controlling implement position
A mechanism for controlling raised and lowered positions of a hitch-mounted implement includes a rotatable control knob coupled to a transducer, e.g., a potentiometer, for movement between first and second positions representing the raised and lowered pos...
03/28/2000
5069082Controller for powered industrial trucks
The disclosure relates to rotary handle controls using control circuits for controlling powered industrial trucks particularly stacking vehicles. Specifically, hand controls to effect a simultaneous actuation of several functions with one hand are disclos...
12/03/1991
4973939Potentiometer combination mounted on a circuit board
A balancing and a setting potentiometer, in combination, arranged one above the other in a common housing, mounted on a circuit board, with electric connections guided to the circuit board and with a full-length hollow shaft arranged for adjusting the pot...
11/27/1990
4668933Servo control mechanism
An error detection device which includes two coaxial connected shafts. A flexible seal is disposed about one shaft to secure the shaft within a bore of the second shaft to insure accurate correlative movements of the shafts....
05/26/1987
4649366Trimmer control mounted in potentiometer knob
A trimmer control is mounted in a potentiometer knob to provide a compact controller for use in a device such as a hearing aid. The knob of the potentiometer is rotatably attached to a base housing which has a centrally located bore. A bracket extends thr...
03/10/1987
4542366Illuminated variable resistor
A rotary type illuminated variable resistor wherein a light source is disposed in a case, and first and second optical guide members for guiding light from the light source are respectively disposed in a hollow shaft and a hollow knob. When the knob is ro...
09/17/1985
4523175Dual shaft rotary electric device
A dual shaft rotary electric device comprises inner and outer concentric shafts, slider supports attached to the inner and outer shafts respectively, sliders attached to the slider supports respectively, and insulating substrates stacked in the longitudin...
06/11/1985
4492950Variable resistance assembly with improved contactor knob
A thick film variable resistance assembly, such as for a cathode ray tube, having an improved contactor knob....
01/08/1985
4453152Sewing machine control
A control for a sewing machine is provided with a turnable outer knob for operating a potentiometer, and a slidable inner knob within the outer knob for moving a contact member to connect conductive paths on a printed circuit board which supports both the...
06/05/1984
4371780Multi-element cooking unit with control device
A cooking and/or heat-maintaining unit comprises a main heating element and an auxiliary element adjacent thereto. A control therefor comprises a regulating or control device having a rotary setting member with a shaft for adjusting the power or temperatu...
02/01/1983
4359711Rotary variable resistor
In a rotary variable resistor wherein variable resistors which are operated by inner and outer shafts independently of each other are received in a single case; an unrotatable plate member having both its surfaces smoothed is interposed between the inner ...
11/16/1982
4353053Rotary variable resistor
A rotary variable resistor comprising an insulation substrate having a partial-ring form resistor layer on the surface thereof, an operational shaft rotatably supported at a central portion of the insulation substrate, a brush supporter of a rotational bo...
10/05/1982
4308433Master switch for multi-speed vehicles
A selector switch assembly includes modular switch units that are serially-arranged in a housing and are operated by a single rotatable control member that is biased to a first position by a biasing unit. A modular switch unit includes a housing that has ...
12/29/1981
4297671Tandem insert molded electrical controls and process for producing same
A process utilizing tandem insert molded controls for effecting a plurality of electrical control functions. A power switch, variable resistance control, and momentary switch are each contained within insert molded housings or bases which are mounted one ...
10/27/1981
4105988Tandem electrical control
A tandem electrical control comprises a plurality of variable resistance sections. Each resistance section comprises a resistance element and a collector member that are carried by a base, and a contactor member that is carried by a driver, the contactor ...
08/08/1978
3988711Tandem electrical control
A control comprises two variable resistance controls connected in tandem to a concentric shaft arrangement, an inner shaft of the concentric shaft arrangement containing an energy absorber, the inner shaft and the energy absorber providing an energy absor...
10/26/1976
 
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