Patent · US Active

System for providing DC power to elevator car

US9150385B2 · kind B2 · utility

0Cited by

12References

19Claims

0Family size

Assignee

OTIS ELEVATOR COMPANY · US

Inventors

Juergen Gewinner · Berlin, DE
Stefan Lothar Seelmann · Berlin, DE

Key dates

Filing date	Oct 29, 2009
Grant date	Oct 6, 2015
Priority date	—
Expiry date	Dec 2, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66B13/143
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

The present invention relates to an elevator door controller system for operating doors of an elevator car. The system includes a travelling cable for delivering DC power to the car. The car includes a power storage device for storing DC power from the travelling cable, a DC motor for operating the car doors, and an elevator door drive powered by the power storage device for driving the DC motor to operate the car doors.

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