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:
May. 21, 2013
Filed:
Apr. 19, 2010
Stefano Massari, Cesena, IT;
Stefano Massari, Cesena, IT;
Soilmec S.p.A., Cesena (FC), IT;
Abstract
Excavation equipment for the construction of compaction piles includes a tool mounted at the end of a drilling rod; the tool is constituted by a shaft () provided on its end with digging teeth () and with at least a plate () for collecting debris rotating between an open position during the excavation and closed during the ascent of the tool. A screw (); is of the type having at least two principles (), in the upper part () fixed directly on the shaft () and in the lower part () fixed on a cylindrical element () inserted on the shaft. A compactor () is positioned on the screw () of the cylindrical element (). The shaft rotates between two positions displaced between them, one corresponding to the excavation condition and the other to the ascent one; each of the at least two-principle screws of the shaft () constitutes the continuation of a corresponding screw () of the cylindrical body () depending on the angular position of the shaft ().