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:
Feb. 20, 2018
Filed:
Dec. 05, 2013
Soletanche Freyssinet, Rueil Malmaison, FR;
Daniel Perpezat, Rueil Malmaison, FR;
Jean-François Mosser, Rueil Malmaison, FR;
SOLETANCHE FREYSSINET, Rueil Malmaison, FR;
Abstract
A device () for treating a portion of soil comprises a rotary shaft (), at least one deployable mixer tool () secured to the rotary shaft (), and a longitudinal pipe () for injecting a fluid in the proximity of the mixer tool (). According to the invention, the treatment device () further includes a boring tool () situated at the bottom end of the shaft (), an outer tubular element () extending parallel to the rotary shaft (), the rotary shaft () being arranged inside said tubular element (), and a coupling system () between the rotary shaft () and the tubular element (). In a first configuration, the coupling system () is suitable for constraining the tubular element () and the rotary shaft () to move together in rotation about the main axis (X), in at least one direction of rotation, and for constraining the tubular element () and the rotary shaft () to move together in translation along the main axis (X), at least in the downstream direction. These movements in rotation and translation can be released in a second configuration of the coupling system ().