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. 29, 2005
Filed:
Jul. 08, 2003
Frédéric Droin, Liergues, FR;
Laurent Demia, Macon, FR;
Frédéric Droin, Liergues, FR;
Laurent Demia, Macon, FR;
ACTARIS SAS, , FR;
Abstract
A volumetric fluid meter has a cylindrical measuring chamber with a lateral wall, a bottom () and a lid (), a lower cylinder () and an upper cylinder (), having the same diameter, which is less than the diameter of the chamber. An inlet orifice and an outlet orifice () respectively admit fluid to and evacuate fluid from the chamber. A cylindrical piston () is disposed eccentrically and guided kinematically in the chamber and effects an oscillatory movement in the chamber as a result of the displacement of a volume of fluid. A fixed partition () between the inlet orifice and the outlet orifice, lies radially between the lateral wall and the lower and upper cylinders, and lies axially between the bottom and the lid. The meter further includes a vertical groove () extending at least partly along the lower and upper cylinders and is in communication with one of the inlet and outlet orifices, and is situated in the vicinity of said fixed partition.