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:
Apr. 05, 2011
Filed:
Dec. 08, 2006
Steven R. Page, Palatine, IL (US);
Steven R. Page, Palatine, IL (US);
Fluid Management, Inc., Wheeling, IL (US);
Abstract
A combination gravimetric and volumetric fluid dispenser which includes a scale linked to a controller. The controller is linked to a plurality of two stage valves which control the dispensing of large quantities of base materials. The controller is also linked to a plurality of nutating pumps which together with the controller controls the dispensing of smaller quantities of additive materials. The base material dispensing valves include stepper motor actuators having multiple steps per revolution and are under the control of an analog signal from a controller. The base material dispensing valve is opened or closed via a rod that is slidably raised or lowered upon rotation of the drive shaft of the stepper motor actuator.