William A. Harvill

Method of and apparatus for making and dispensing a carbonated beverage utilizing propellant carbon dioxide gas for carbonating

Portable weigh apparatus for measuring liquid volume

Automatic change-over device for liquid dispensing system

Pneumatically powerable double acting positive displacement fluid pump

Diaphragm type fluid pump having a flexible diaphragm with an internal reinforcing plate

Pass level tester for glass bottles

Beverage dispenser having an improved level control for a liquid heat exchange medium

METHOD AND APPARATUS FOR MAKING AND DISPENSING CARBONATED WATER, PNEUMATICALLY POWERABLE DOUBLE ACTING POSITIVE DISPLACEMENT FLUID PUMP AND A SPOOL TYPE FLUID VALVE

Spool type fluid valve.

METHOD AND APPARATUS FOR MAKING AND DISPENSING CARBONATED WATER