Direct connection potentiometer
AssigneePiher Navarra, S.A.
InventorCarlos L. Arriazu
Life of this patent
Estimating the term…
Abstract
The direct connection potentiometer includes a block of electrically insulative material having two opposite faces and an edge about the perimeter of the faces. An electroresistive track is provided in an arc on the front face of the block, radially spaced from a ring-shaped conductive area provided on that face. Conductive strips extend from each end of the track, and from the ring-shaped conductive area to the perimeter of the front face, where each, spaced from the others, wraps around the edge of the block to its rear face. A rotatable cursor, i.e. a slide is mounted to the block centrally of the ring-shaped conductive area and connects the ring-shaped conductive area with a selected arcuately short portion of the electroresistive track.
Claims10
A direct connection potentiometer, comprising:
- a track support block of electrically insulative material, said block having a front face and a rear face joined by a perimetrical edge surface;
- a track of electroresistive material provided on said front face of said block in an arc about a center so as to have two opposite ends;
- a first band of electroconductive material provided on said block, in electrical contact with one end of said track on said front face and extending on said block from said front face onto said edge surface and onto said rear face;
- an area of electrically conductive material provided on said front face of said block in an arc about said center, said area being spaced radially of said center from said track;
- a second band of electroconductive material provided on said block, in electrical contact with said area of electrically conductive material and extending on said block from said front face onto said edge surface and onto said rear face, whereby respective portions of said first band and said second band extending on said front face, said edge surface and said rear face of said block are available for use as respective first and second terminals;
- and
- a cursor mounted to said block for arcuate movement about said center, said cursor having an electrically conductive portion thereof provided both in continuous sliding contact with said area of electroconductive material and with an arcuately short region of said track of electroresistive material, the location of which region is determined by variably positioning said cursor by movement of said cursor about said center.
Dependencies are inferred from the claim text.