Patent · US Active

Chain drive system with polygon compensation

US9718646B2 · kind B2 · utility

2Cited by

7References

19Claims

0Family size

Assignee

OTIS ELEVATOR COMPANY · US

Inventors

Walter Srb-Gaffron · Baden, AT
Martin Michalke · Brunn am Gebirge, AT
Phillip Schedl · Wien, AT

Key dates

Filing date	Apr 8, 2013
Grant date	Aug 1, 2017
Priority date	—
Expiry date	Apr 8, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66B23/022
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A chain drive includes a chain configured to rotate in a closed loop forming a load track and a return track interconnected by first and second turnaround sections; a drive sprocket for driving the chain, the drive sprocket being located in the first turnaround section of the closed loop; and a polygon compensation system for compensating the polygon effect of the chain. At least one component of the polygon compensation system is located within at least one turnaround section.

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