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:
Jul. 23, 2002
Filed:
Jan. 21, 2000
Michel Lissandre, Izeure, FR;
Yves Millet, Moulins, FR;
Potain, Ecully, FR;
Abstract
The invention relates to the mounting of the revolving part of a tower crane, at the top of the mast. A first assembly, formed by the counterjib ( ), its tie rod ( ) and a rear part ( ) of the jib bearer ( ), made in two separable parts, is pre-built on the ground, then lifted up and assembled by pinning (at ) on the revolving pivot or the mast-cab ( ) and is held temporarily in place by retaining link rods ( ). Another assembly, formed by the jib ( ), its tie rods ( ) and the front part ( ) of the jib bearer, is also pre-built on the ground, then lifted up and assembled by pinning (at ) on the revolving pivot or the mast-cab ( ). The respective tops ( ) of the front part ( ) and of the rear part ( ) of the jib bearer ( ) are then joined together by temporary pinning along an axis ( ), followed by definitive pinning along an axis ( ).