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:
Oct. 07, 1997
Filed:
Jun. 10, 1996
Applicant:
Inventors:
William Knight Russell, Newport Beach, CA (US);
Paul M Beldham, Mission Viejo, CA (US);
Jeffrey J Lukawski, Laguna Niguel, CA (US);
Christopher W Nesselroad, Lake Forest, CA (US);
Assignee:
Knight Equipment International, Inc., Costa Mesa, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137888 ; 417198 ;
Abstract
An air gap, venturi-type mixer for mixing a liquid chemical with water includes a readily field-exchangeable collimator, water seal and venturi unit to accommodate different flow rates. The venturi unit includes a funnel with slightly inclined walls that direct a misaligned collimated water stream into the vena contracta of the venturi without reducing its speed or entraining any air.