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.

Date of Patent:
Aug. 06, 2013

Filed:

Apr. 20, 2010
Applicant:

Alessandro Ditillo, Cesena, IT;

Inventor:

Alessandro Ditillo, Cesena, IT;

Assignee:

SOILMEC S.p.A., Cesena (FC), IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

Equipment for the construction of piles includes a drilling rod and a tool () mounted at a lower end thereof. The tool includes a hollow central shaft () with a door () for the concrete; a screw () integral with the shaft (); a compactor () positioned along the screw (); a base () of semicircular shape provided at the lower end of the screw (); a plate () superimposed under the base () and rotating around the shaft () for alternatively assuming an open position, in condition of excavation wherein it superimposes on the base, and a reclosed position, in condition of compaction wherein it forms a surface circular with the base (). Excavation teeth () are fixed to the lower end of the tool and an additional tooth () is constrained to the plate () that during the casting is outside of the tool in the condition of compaction.


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