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:
Jul. 20, 1976
Filed:
Dec. 11, 1974
Applicant:
Inventor:
Alan George Butcher, Wokingham, EN;
Assignee:
Dresser Europe, S.A., Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
73253 ; 418191 ;
Abstract
A fluid flow meter of the positive displacement rotary kind where a housing defines an annular passage coupling input and output ports, a rotor has depending blades which are driven around the passage by the flow of fluid and an idler has pockets which accommodate the rotor blades in sealed relationship as the blades pass from outlet to inlet, the invention being characterized in the provision of two rotors each having blades and pockets and two annular passages accommodating respectively the blades of the different rotors, and each rotor constitutes the idler for the other rotor.