Patent · US Active

Elevator drive

US9051157B2 · kind B2 · utility

1Cited by

20References

15Claims

0Family size

Assignee

thyssenkrupp Elevator Corporation · US

Inventors

Olaf Breidenstein · Vellmar, DE
Jochen Schulze · Reutlingen, DE
Eberhard Vogler · Bad Liebenzell, DE
Andreas Wilhelm · Wäschenbeuren, DE
Torsten Gessner · Ratingen, DE
Gunther Hermann · Lichtenwald, DE
Markus Jetter · Echterdingen, DE
Nils-Anton Mollgaard · Schorndorf, DE
Uwe Resag · Neckartenzlingen, DE

Key dates

Filing date	Jan 3, 2013
Grant date	Jun 9, 2015
Priority date	—
Expiry date	Jan 3, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2201/15
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for monitoring a brake which is operated by a spring force and a device for monitoring the force, comprising the steps of taking into account a force which is required to load or bias at least one spring by means of the device for monitoring the force.

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