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:
Nov. 24, 1987
Filed:
Sep. 03, 1985
Forrest L Austin, Hennepin Cty., MN (US);
Duncan T Lasley, Hennepin Cty., MN (US);
The Cornelius Company, Anoka, MN (US);
Abstract
A beverage dispensing valve for pre-mix carbonated beverage has a pressure balancing structure for enabling easy opening of the valve and an improved drive mechanism providing a relatively higher force for opening the valve; the balancing structure has a balance piston on a nose of a normally closed poppet valve, the piston is on a floppy mount and is sealed to a balance cylinder in the pressurized beverage line forming a balance chamber upstream of the piston, the chamber is vented to atmosphere to relieve beverage pressure on most of the area of the poppet valve to reduce the opening force required; the drive mechanism includes an electric solenoid having an elastic tension spring in the solenoid plunger, the spring elastically connects the plunger to the poppet valve to generate an improved and greater force. A dispensing system has several of these valves with a single low power transformer for all of the valves. A method of dispensing pre-mix carbonated beverage has the new steps of balancing the beverage pressure upon the upstream side of a poppet valve so that it is relatively easy to open the valve, and elastically applying an opening force upon the poppet valve to pop it open when the elastic force exceeds the required opening force.