Patent · US Expired

System for reliable prevention of the restarting of a machine

US6777830B1 · kind B1 · utility

2Cited by

6References

7Claims

0Family size

Assignees

Pilz GmbH & Co. · DE
Moeller GmbH · DE

Inventors

William Anderson · Cincinnati, US
Donald L. Wires · Loveland, US
Jürgen Behrens · Sankt Augustin, DE
Claude Hovine · Archennes, BE
Gernot Müsseler · Bornheim, DE
Rolf Dickhoff · Tauberbischofsheim, DE
Winfried Graf · Göttingen, DE
Udo Ratey · Eislingen/Fils, DE

Key dates

Filing date	Mar 6, 2002
Grant date	Aug 17, 2004
Priority date	—
Expiry date	Mar 6, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH02H11/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A safety lock out switch system for the prevention of an unexpected restart of an electrically powered machine in whose main power circuit it is installed. Therein the power-free status of the power supply output of the system is confirmed visually. The system is configured so it is flexible, thus being able to be used in the most various types or sizes of machines. Technical aspects and safety aspects were taken into account therein so that the installation can be carried out in practically every country in the world.

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