Patent · US Active

Crane

US11577940B2 · kind B2 · utility

1Cited by

1References

7Claims

0Family size

Assignee

LIEBHERR-WERK BIBERACH GMBH · DE

Inventors

Florian Wiest · Leutkirch, DE
Philip IRLE · Tübingen, DE

Key dates

Filing date	Oct 15, 2020
Grant date	Feb 14, 2023
Priority date	—
Expiry date	Oct 15, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66C23/26
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

The invention relates to a crane, in particular a rotary tower crane, comprising a crane boom, from which a load hook can be raised and lowered via a hoist cable, and an electric power supply on the load hook and/or an optionally provided trolley which can be moved on the crane boom. According to the invention, the electric power is directly generated at the location where it is required, and in the process kinetic energy present at said location is converted into power. According to the invention, the electric power supply comprises a generator which is arranged on the load hook and/or on the trolley and which can be driven by a deflecting and/or running pulley and/or a cable running around the deflecting pulley.

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