The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Apr. 10, 2014
Applicant:
Liebherr-werk Ehingen Gmbh, Ehingen/Donau, DE;
Inventor:
Sebastian Brzoska, Ehingen, DE;
Assignee:
Liebherr-Werk Ehingen GmbH, Ehingen/Donau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66C 23/70 (2006.01); B66C 23/18 (2006.01);
U.S. Cl.
CPC ...
B66C 23/708 (2013.01); B66C 23/185 (2013.01); B66C 23/70 (2013.01); B66C 23/705 (2013.01);
Abstract
A telescopic boom for a crane has at least two telescopable telescoping sections in the form of lattice pieces, each of which exhibits a hollow structure that has in essence the shape of a box. The bottom chords of adjacent sections have in each instance a pinning structure to provide for pinning to each other during normal crane operations. By way of the design of at least the outer telescoping section, at least some of the force that is introduced into the pinned joint can be dissipated into the top chord of the boom.