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. 05, 2002
Filed:
Jun. 04, 1999
Applicant:
Inventors:
Daniel Catherin, Manziat, FR;
Ludovic Ducate, Genouilleux, FR;
Assignee:
Schlumberger Industries, S.A., Montrouge, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 1/06 ;
U.S. Cl.
CPC ...
G01F 1/06 ;
Abstract
The invention provides a liquid meter comprising a measurement chamber in which a spinner is caused to rotate about an axis and pivots, at least at low liquid flow rates, on a support in alignment with the axis. The pivoting motion takes place via a ball that is free to rotate between two concave surfaces each having a radius of curvature that is greater than the radius of curvature of the ball. One of the concave surfaces is tied to the spinner, whereas the other surface is secured to the support.