Patent · US Expired

Variable resistor

US4123742A · kind A · utility

2Cited by
2References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 27, 1977
Grant dateOct 31, 1978
Priority date
Expiry dateJun 27, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01C10/38
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A variable resistor has an insulating substrate plate, a resistance body formed on the substrate plate and a slider adapted to slide along the resistance body. The resistance body is formed in a winding pattern to provide a larger range of variation of resistance for a given stroke of the slider. The slider has a plurality of contacts adapted for sliding along the resistance body so that at least one of the contacts is kept in contact with the winding resistance body so as to provide a linear change of the output of the resistor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.