Patent · US Active

Shaft access enabling device of an elevator system

US9272878B2 · kind B2 · utility

10Cited by

11References

15Claims

0Family size

Assignee

INVENTIO AG · CH

Inventors

Hans Kocher · Neuchâtel, CH
Astrid Sonnenmoser · Ebikon, CH
David Michel · Baltimore, US
Bjarne Lindberg · Adligenswil, CH

Key dates

Filing date	Dec 1, 2010
Grant date	Mar 1, 2016
Priority date	—
Expiry date	Mar 18, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66B5/005
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A shaft access enabling device of an elevator system has a shaft access control unit and at least one access monitoring unit, wherein the shaft access control unit controls an operating state of the at least one access monitoring unit and the access monitoring unit monitors at least one shaft access. The shaft access control unit has at least two different operating modes for controlling the operating state of the at least one access monitoring unit and inspects access authorization before changing between the at least two operating modes thereof.

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