Patent · US Expired

Rotary potentiometer

US4954804A · kind A · utility

0Cited by

8References

10Claims

0Family size

Assignee

Preh-Werke GmbH & Co. KG · DE

Inventors

Gottfried Berthold · Reutlingen, DE
Rudolf Limpert · Strahlungen, DE
Friedhard Fehr · Lauter, DE

Key dates

Filing date	Mar 3, 1989
Grant date	Sep 4, 1990
Priority date	—
Expiry date	Mar 3, 2009

Classification

Technology area (CPC H)Electricity
CPC primaryH01C10/20
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A rotary potentiometer having a cylindrical or partially cylindrical resistance track and at least one electrode pair arranged at the resistance track's edges which are parallel to the cylinder axis. A tap is fixed to an adjusting component which is rotatable around and movable along the cylinder axis. The axial breadth of the resistance track correspondsd substantially to the stroke of the adjusting component along the cylinder axis. At the circumferential edges of the resistance track, at least one second electrode pair is arranged.

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