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. 18, 2007
Filed:
Sep. 23, 2005
Stefan Diehl, Homburg/Saar, DE;
Stefan Diehl, Homburg/Saar, DE;
Terex-Demag GmbH & Co. KG, Zweibrucken, DE;
Abstract
The present invention substantially relates to a method for erecting and disassembling an at least two-piece main boom for a lattice-boom crane. The erecting and disassembling procedure results in that the geometric kinematic properties of the main boom () are used in such a manner that during the erecting and disassembling, the effective lever arm () of the main boom () is reduced. This results from the main boom () being bent at the hinge point (A), at which at least two boom portions () are connected to each other, and thus an angle position is produced between the two boom portions (). Further, the invention relates to a main boom (), which can be erected by the method as well as a lattice-boom crane having such an main boom ().