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:
Dec. 26, 1989
Filed:
Sep. 01, 1988
Applicant:
Inventor:
Kenneth G Smazik, Marietta, GA (US);
Assignee:
The Coca-Cola Company, Atlanta, GA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137-1 ; 25112907 ; 25112908 ; 251282 ;
Abstract
A liquid flow control solenoid valve for a beverage dispensing system wherein a rolling diaphragm seal is used between a needle valve and the valve body and the increased hydraulic forces on the needle valve caused by the rolling diaphragm are balanced by using a needle valve that is tapered in a direction to create a force on the needle valve in the direction opposite to the force created by the rolling diaphragm, so that the hydraulic forces are balanced and a smaller solenoid can be used to operate the valve.