Patent · US Active

Crane telescope locking device

US11629034B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

Manitowoc Crane Group France · FR

Inventors

Thomas Heidrich · Dresden, DE
Hasko Karge · Wilhelmshaven, DE
Johannes Schuermann · Jever, DE

Key dates

Filing date	Jul 19, 2019
Grant date	Apr 18, 2023
Priority date	—
Expiry date	Jul 23, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B2211/72
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A crane telescope locking device includes a control device which is hydraulically in contact with a telescoping cylinder of a crane telescope and, for the purpose of actuating, with at least one cylinder lock hydraulic cylinder and includes a valve which is open in its inactivated resting state and thus opens a fluidic connection between the telescoping cylinder and the at least one cylinder lock hydraulic cylinder. A telescoping cylinder (6) of a crane includes such a crane telescope locking device.

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