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. 23, 1980
Filed:
Nov. 24, 1978
Applicant:
Inventors:
Paul R Wilder, Cincinnati, OH (US);
Chester W Wood, Cincinnati, OH (US);
Assignee:
Dover Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
137801 ; 141206 ; 141392 ;
Abstract
A fluid dispensing nozzle has a first venturi created between a seat ring and a movable, resiliently biased poppet valve. The resistance of the movable poppet valve is decreased as the flow rate increases by a second venturi effect, which reduces the pressure in a chamber formed within the movable poppet valve.