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:
Dec. 23, 1986
Filed:
Jun. 26, 1985
Alain Marlier, Lugny, FR;
Henri Oszajca, Macon, FR;
Flonic, Montrouge, FR;
Abstract
A single jet liquid meter comprises a cylindrical measuring chamber having first and second end walls perpendicular to the axis of the chamber, an injector and an ejector in communication with the measuring chamber, and a turbine having a hub and plurality of blades fixed to the hub. The hub has first and second end faces disposed opposite the first and second end walls, respectively. A pivot and shaft guide the turbine in rotation about the axis of the chamber. A set of radiating ribs are fixed to the first end wall and project into the chamber. The meter further includes an assembly consisting of an axial stop disposed adjacent the first end face and includes a pivot having a tapering point and an abutment which is in contact with the point when the liquid flow rate is zero. The meter is arranged such that the second end face is subjected to a pressure reduction effect produced by rotation of the liquid in the chamber. A collar and annular zone are provided for protecting the first end face from the reduced pressure effect at low speeds of rotation of the turbine, in such a manner that the turbine moves axially to take the point out of contact with the abutment, and to subject the first end face to the pressure reduction phenomenon from a given axial displacement of the turbine, such that the turbine is fixed axially under the reduced pressure effect which is applied to both of the end faces.