Patent · US Expired

Apparatus for maintaining a rotating member at a constant speed

US4278923A · kind A · utility

3Cited by

9References

23Claims

0Family size

Inventors

Peter Nowak · Dormagen, DE
Reinhard Rieger · Brackenheim, DE

Key dates

Filing date	Jul 12, 1978
Grant date	Jul 14, 1981
Priority date	—
Expiry date	Jul 12, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S388/93
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An assembly comprising a drive motor connected to a member to be rotated by a transmission means which is liable to slip when the rotating member is subjected to a loading thereon, includes a compensation circuit connected to the motor control circuit and operable to apply to the latter a compensation signal proportional to the change in a parameter directly related to the motor torque, thereby to compensate for slipping of the transmission means.

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