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:
Jun. 04, 1996
Filed:
Jun. 26, 1995
Applicant:
Inventor:
William F Sand, Cincinnati, OH (US);
Assignee:
Hydro Systems Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
137216 ; 137888 ;
Abstract
An improved venturi eductor for proportional dispensing of chemicals into flowing water includes a large anti-siphoning air gap section. The air gap section includes an outer wall and an inner wall with a gap between the walls. Both walls include offset vents or windows that provide an indirect path from the center of the air gap to the exterior of the eductor. The eductor is made from several molded parts that may be assembled without requiring machining. Further, eductor has a unique spray shield design that more effectively controls water splash in the eductor section and simplifies assembly.