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:
Sep. 15, 1998
Filed:
Oct. 04, 1996
William J Kolb, III, Zion, IL (US);
Liquid Controls L.L.C., Lake Bluff, IL (US);
Abstract
A fluid flow meter has a housing within which inlet and outlet displacement rotors flank a blocking rotor. The end plates of the housing rotatably support all three rotors which rotate in a timed sequence in response to the passage of fluid through the meter. The cylindrical blocking rotor has a pair of disk-shaped endwalls joined by a rectangular, centrally-positioned web, and a pair of arcuate sidewalls which, with the endwalls and web define a pair of rotor cavities. Recesses in the housing end plates fit the blocking rotor endwalls and provide an added fluid seal. Use of the rotor endwalls makes it possible to manufacture the blocking rotor with a smaller diameter and thinner body portions, saving weight and rotational mass.