Patent · US Expired

Method for performing an elevator rescue run

US7681693B2 · kind B2 · utility

9Cited by

5References

16Claims

0Family size

Assignee

OTIS ELEVATOR COMPANY · US

Inventors

Dirk H. Tegtmeier · Berlin, DE
Herbert K. Horbruegger · Berlin, DE
Michael Mann · Berlin, DE
Kristian Bernhard Wittjen · Berlin, DE

Key dates

Filing date	Jan 11, 2005
Grant date	Mar 23, 2010
Priority date	—
Expiry date	May 26, 2026

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66B5/027
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

Method for performing an elevator rescue run in an emergency situation, the elevator comprising and elevator car, a counter weight, a rope suspending the car and the counterweight, a drive motor, an emergency brake for stopping the car in an emergency situation, and a motor drive unit for supplying drive power to and for controlling the drive motor, having the following rescue run sequence steps:

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