Patent · US Expired

Operational control having a spring wiper contact

US6864442B1 · kind B1 · utility

1Cited by

7References

17Claims

0Family size

Assignee

Preh GmbH · DE

Inventors

Oliver Zegula · Bad Neustadt an der Saale, DE
Thomas Ofenhitzer · Freiensteinau, DE
Gerold Eckert · Bad Neustadt an der Saale, DE
Joachim Storath · Freiensteinau, DE

Key dates

Filing date	May 26, 2004
Grant date	Mar 8, 2005
Priority date	—
Expiry date	May 26, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH01H19/585
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An operational control is provided for setting an actuating variable, more particularly a set point for a motor vehicle air conditioner, having a rotary knob, having at least two contact tracks and one elastic wiper contact element that is in contact by means of at least one wiper contact with a contact track, wherein the contact tracks are joined to the rotary knob so as to be nonrotatable with respect thereto and in that the wiper contact elements are provided with an additional elastic wiper contact facing the printed circuit board.

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