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:
Jan. 13, 2004
Filed:
Jun. 07, 2002
Rolf Schmitz, Waldenbuch, DE;
Dieter Schillinger, Neuhausen, DE;
Putzmeister AG, Aichtal, DE;
Abstract
The invention relates to a concrete distributing boom for mobile and stationary concrete pumps. The inventive boom is provided with a substructure ( ), a pillow block ( ) that can be rotated around a vertical axis on the substructure and a stack of arms ( ) consisting of several mast arms ( ) that can be pivoted against each other. The first mast arm ( ) is articulated to a hinge ( ) of the pillow block ( ). Moreover, a drive mechanism ( ) is provided that is provided with a driving pinion ( ) for rotatably driving the pillow block ( ). Said pinion ( ) can preferably be rotated around a vertical axis by means of toothed racks ( ). The aim of the invention is to enable to easily change masts between different substructures ( ). The pillow block ( ) that is connected to the stack of arms ( ) can be detachably coupled to the driving pinion ( ) which is arranged in the substructure.