Patent · US Expired

Drive apparatus having at least two electric motors

US4289997A · kind A · utility

46Cited by

4References

10Claims

0Family size

Assignee

Keiper Automobiltechnik GmbH & Co. KG · DE

Inventors

Bernhard Jung · Ober-Mörlen, DE
Michael Teichmann · Obermoschel, DE

Key dates

Filing date	Jun 22, 1979
Grant date	Sep 15, 1981
Priority date	—
Expiry date	Jun 22, 1999

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/50085
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A drive apparatus has at least two electric motors. There is also a central control common to all motors which lie in series in a closed-circuit energy supply. Each motor has an individual control unit which can be turned on and off from the central control via a control line by an address. Each motor also contains a short-circuit device lying in parallel with its connecting terminals.

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