Patent · US Expired

Rotary potentiometer

US4908598A · kind A · utility

4Cited by

3References

6Claims

0Family size

Assignee

Wilhelm Ruf KG · DE

Inventors

Rita Burger · Grafing, DE
Horst Pissulla · Ottobrunn, DE

Key dates

Filing date	Oct 25, 1988
Grant date	Mar 13, 1990
Priority date	—
Expiry date	Oct 25, 2008

Classification

Technology area (CPC H)Electricity
CPC primaryH01C10/32
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The cover of a casing of the potentiometer is formed with an opening which is adapted to be closed by another cover and through which the top surface of a resistor core is accessible. Trimming resistors are located on the top surface and are connected electrically to a resistor path applied on the bottom surface of the resistor core. This permits adjustments of the potentiometer to be made even when the assembly is completed.

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