Patent · US Expired

Electrical safety device for controlling a printing machine

US4488107A · kind A · utility

1Cited by

8References

14Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Anton Rodi · Leimen, DE
Edgar Schmidt
Dieter Uhrig · Eberbach, DE

Key dates

Filing date	May 3, 1982
Grant date	Dec 11, 1984
Priority date	—
Expiry date	May 3, 2002

Classification

Technology area (CPC G)Physics
CPC primaryG05F1/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Electrical safety device for controlling a printing machine having a control transformer with a plurality of primary and secondary taps for varying voltage levels including respective control lines connected to the secondary taps, a voltage monitoring device connected in a respective control line of one of the secondary taps, and a voltage changing switching device operatively associated with one of the primary taps, the voltage monitoring device being coupled with the voltage changing switching device.

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