Touch controlled voltage-divider device
First Claim
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1. In a voltage-divider device:
- a. a resistive member having an elongated resistive surface;
b. a conductive member having an elongated conductive surface mounted in close spaced substantially coextensive relationship with said resistive surface;
c. means for selectively establishing galvanic contact between each of a plurality of points along the length of said resistive surface and the point corresponding thereto along the length of said conductive surface by a touch of the finger;
d. elongated voltage responsive visual indication means physically located along the length of said elongated resistive and conductive surfaces in close spaced substantially coextensive relationship therewith and adapted to produce a different visual indication in response to each of a plurality of different voltages corresponding to each of said plurality of points along the length of said resistive surface;
e. terminal means for making electrical connection to opposite ends of said elongated resistive surface; and
f. terminal means for making electrical connection from the conductive member to said elongated voltage responsive visual indication means.
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Abstract
A voltage divider device capable of providing any voltage in a preselected range of voltages, which voltage may be set by a touch of the finger is disclosed. The device includes a control element without frictional contacts and a voltage storage circuit controlled by the control element. A circuit including the device is described and embodiments of the device providing a visual indication of the setting of the device are disclosed.
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Citations
2 Claims
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1. In a voltage-divider device:
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a. a resistive member having an elongated resistive surface; b. a conductive member having an elongated conductive surface mounted in close spaced substantially coextensive relationship with said resistive surface; c. means for selectively establishing galvanic contact between each of a plurality of points along the length of said resistive surface and the point corresponding thereto along the length of said conductive surface by a touch of the finger; d. elongated voltage responsive visual indication means physically located along the length of said elongated resistive and conductive surfaces in close spaced substantially coextensive relationship therewith and adapted to produce a different visual indication in response to each of a plurality of different voltages corresponding to each of said plurality of points along the length of said resistive surface; e. terminal means for making electrical connection to opposite ends of said elongated resistive surface; and f. terminal means for making electrical connection from the conductive member to said elongated voltage responsive visual indication means. - View Dependent Claims (2)
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Specification