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:
Mar. 20, 2012
Filed:
Dec. 07, 2006
Matthieu Darbois, Bordeaux, FR;
Sébastien Furet, Bruges, FR;
Philippe Duquennoy, Camarsac, FR;
Dominique Berton, Le Bouscat, FR;
Matthieu Darbois, Bordeaux, FR;
Sébastien Furet, Bruges, FR;
Philippe Duquennoy, Camarsac, FR;
Dominique Berton, Le Bouscat, FR;
Dosatron International, Tresses, FR;
Abstract
Hydraulic machine, in particular hydraulic motor, comprising a casing, a differential piston () having a region of large cross section and a region of smaller cross section, which can slide with a reciprocating movement respectively in the casing and in a housing coaxial to, and of smaller diameter than, the casing, the piston separating two chambers of the casing and being provided at the location of its large cross section and its small cross section with sealing lips () which are oriented in opposite directions and which face one another. The sealing lips () are provided on detachable circular rings (), and the piston () is molded in one piece.