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:
Aug. 19, 1997
Filed:
Apr. 20, 1995
Applicant:
Inventors:
Walter E Warn, Knightdale, NC (US);
Fred K Carr, Chapel Hill, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
36447906 ; 2221294 ; 3644791 ; 36447911 ; 395215 ; 395216 ; 395222 ;
Abstract
A microprocessor based dispenser control system for controlling the dispensing process in a liquid pump and storing information on the type and number of times the liquid has been dispensed is disclosed. The system includes a dispensing pump and a control console for controlling the pump. The console is interfaced to a cash register, point-of-sales system, or printer for down-loading information to these. In a preferred embodiment, the dispensing pump is a squeeze type pump driven by a stepper motor. The microprocessor uses a pulse drive source to control the stepper motor.