Patent · US Expired

Push switch

US5545864A · kind A · utility

4Cited by

3References

14Claims

0Family size

Assignee

Preh-Werke GmbH & Co. KG · DE

Inventors

Karl-Heinz Bauer · Graben-Neudorf, DE
Gerold Eckert · Bad Neustadt an der Saale, DE
Edgar Maisch · Bad Neustadt an der Saale, DE
Anton R uttiger · Wildflecken, DE

Key dates

Filing date	Aug 3, 1994
Grant date	Aug 13, 1996
Priority date	—
Expiry date	Aug 3, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH01H13/023
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A push button switch (3) encounters, during a stroke of a push rod (6) thereof, a pressure point (D), a switching (contact-making) movement, and a return tension. A one-piece spring element (16) is provided for achieving this with an uncomplicated structure, with a short stroke, and with a reliable contact once the pressure point has been overcome. The one-piece spring element has, between a contact arm (26) and a return arm (21), hairpin-shaped bent guide legs (17, 18). A sloping step (24) formed on at least one of the guide legs creates the pressure point.

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