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. 07, 2010
Filed:
Mar. 14, 2008
Jeffrey A. Carlisle, Stratham, NH (US);
Charles E. Kramer, Cave Junction, OR (US);
John M. Kirkman, Jr., Trumansburg, NY (US);
Douglas E. Vincent, Pelham, NH (US);
Jeffrey A. Carlisle, Stratham, NH (US);
Charles E. Kramer, Cave Junction, OR (US);
John M. Kirkman, Jr., Trumansburg, NY (US);
Douglas E. Vincent, Pelham, NH (US);
Fluidnet Corporation, Amesbury, MA (US);
Abstract
A fluid flow control system using flow rates to extract additional information from an in-line flow sensor. The system provides the ability to determine a position of a movable flow sensor element of a flow sensor by illuminating a photosensitive pixel array with a light source to create a first set of pixel intensity values introducing an abrupt change to the fluid driving pressure, illuminating the photosensitive pixel array with a light source to create a second set of pixel intensity values, and calculating the difference between the first and second sets of pixel intensity values as a function of pixel position.