Patent · US Expired

Multi-stage switch

US5796056A · kind A · utility

33Cited by

9References

9Claims

0Family size

Assignee

NBB Nachrichtentechnik GmbH & Co., KG · DE

Inventors

Wolfgang Bredow · Mühlacker, DE
Thomas Burchard · Pforzheim, DE
Thomas Haug · Bern, CH

Key dates

Filing date	Sep 12, 1996
Grant date	Aug 18, 1998
Priority date	—
Expiry date	Sep 12, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2225/018
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A multi-stage switch with a common actuating element and at least two switch elements for making contact provides that the switch elements are disposed next to each other above contact elements of a circuit board which they bridge in the closed state. The actuating element for the switch is movably disposed above the switch elements in such a way that the switch elements respond sequentially when the actuating element is depressed. Such a multi-stage switch can be produced cost-effectively with simple structural means, can be universally used, is easy to operate, maintenance free to the greatest extent and operates dependably.

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