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:
Aug. 19, 2014
Filed:
Jan. 19, 2006
Jaime Leonard Harris, Rosemount, MN (US);
Gary Allen Brown, Faribault, MN (US);
Jaime Leonard Harris, Rosemount, MN (US);
Gary Allen Brown, Faribault, MN (US);
Hydra-Flex, Inc., Burnsville, MN (US);
Abstract
An improved venturi-style eductor apparatus for dispensing chemicals into a motive fluid stream where an eductor body FIG.is manufactured by molding a chemically inert polymer material FIG.around and inside a metallic insert FIG.. Opposing ends of the metallic insert may be threaded, flanged, or machined for push-in connection to facilitate mating with a motive fluid source and a dispensing device. By manufacturing an eductor assembly using a single-piece metal insert over-molded with an inert polymer provides improved chemical resistance for aggressive applications and allows improvements in venturi geometry not achievable using traditional machined components. This apparatus reduces manufacturing cost over current state-of-the-art eductor assemblies by using a single molding step to create flow-path geometry in the eductor body while retaining mechanical strength with the metallic insert FIG.