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:
Apr. 24, 2007
Filed:
Nov. 04, 2003
Gaetan Thierry, Lignan de Bordeaux, FR;
David Higham, Mios, FR;
David Vacher, Latresne, FR;
Dosatron International, Tresses (Bordeaux), FR;
Abstract
A hydraulic motor comprises a body and a piston able to slide in a reciprocating movement in a cylindrical housing of the body. A chamber (CC) is formed on each side of the piston and hydraulic switching means are provided for feeding and evacuating the respective chambers (CC), these switching means being able to adopt two stable positions. Control means (H) having elastic means for abruptly bringing about changes in the position of the switching means are included. There are triggering means () able, at the end of the stroke of the piston (), to bring about the change in position of the switching means (G). The piston () has a closed cross section and the switching means (G) are arranged in the body () of the machine, redially on the outside of the cylindrical housing () in which the piston () slides.