Patent · US Active

Crane

US10633228B2 · kind B2 · utility

1Cited by

1References

20Claims

0Family size

Assignee

Liebherr-Components Biberach GmbH · DE

Inventors

Thomas Münst · Biberach an der Riß, DE
Gerhard Schmid · Mindelheim, DE
Harald Wanner · Deizisau, DE

Key dates

Filing date	Aug 26, 2016
Grant date	Apr 28, 2020
Priority date	—
Expiry date	Sep 15, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66C23/88
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

The present invention relates to a crane, in particular to a revolving tower crane, having a boom rotatable about an upright slewing gear axis by a slewing gear drive and having an out-of-operation brake which allows and brakes rotary movements of the boom in the out-of-operation state. In accordance with the invention, the out-of-operation brake is configured as working electrodynamically and comprises an electric motor of the slewing gear drive which can be operated as an electric-motor brake.

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