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. 25, 1990
Filed:
Dec. 08, 1988
Charles S Turner, Dallas, TX (US);
Other;
Abstract
A computerized beverage dispensing system in a first embodiment includes a fitting connected to a tap having a thermoelectric heat pump cooled nozzle and an electrically controlled valve, hereinafter valve. A computerized controller is connected to the fitting and tap. The fitting has a constricted passage through which the beverage flows under pressure and pressure and temperature transducers for measuring the pressure difference across the constricted passage and the temperature thereof. The computerized controller includes a pressure to time look up table used for timing valve operation. If abnormal pressure or temperature occurs the valve is cut off unless an override circuit is activated. A front/back display shows messages programmed into the computerized controller. A modified fitting has a Pitot tube measuring the velocity flow for the pressure transducer for use with a velocity/time look up table for timing valve on time. In a second embodiment a counter initially counts the time to dispense a volume of the beverage; adjustment for volume changes is made thereafter by incrementing the time up or down as necessary to dispense the initial volume of the beverage. A third embodiment uses the count and adjust technique for beverage dispensing volume control, together with system entry being controlled by a code entry matching a stored code. After entry a normal/program (purge) key switch at normal controls the normal system operation and at program/purge secures the system from all but the key carrier for programming and/or purging.