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:
Sep. 04, 2001
Filed:
Sep. 10, 1999
Applicant:
Inventors:
Hans-Dieter Willim, Ulm-Unterweiler, DE;
Uwe Frommelt, Ehingen/Donau, DE;
Assignee:
Liebherr-Werk Ehingen GmbH, Ehingen/Donau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66C 2/376 ;
U.S. Cl.
CPC ...
B66C 2/376 ;
Abstract
The present invention is directed to a crane, preferably a derrick crane, having a traveling chassis (,), a revolving superstructure (,) mounted thereon in rotating fashion and connected with a ballast car (,) by a shaft (,) and on which a boom and a derrick, to which the ballast car (,) is connected, are mounted in luffing manner. The shaft (,) is in the form of a telescoping beam that can be telescoped to a length corresponding to the current load or that is longer than the same.