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:
Sep. 09, 2008
Filed:
Nov. 02, 2006
Dale Alan Nugent, Minneapolis, MN (US);
John Allan Kielb, Eden Prairie, MN (US);
Mark Daniel Litecky, Minneapolis, MN (US);
Dale Alan Nugent, Minneapolis, MN (US);
John Allan Kielb, Eden Prairie, MN (US);
Mark Daniel Litecky, Minneapolis, MN (US);
Rivatek, Inc., St. Louis Park, MN (US);
Abstract
A device for metering and controlling fluid flow includes a variable orifice and is configured to use a pressure sensor. The device includes a fluid flow conduit having at least one planar inner wall that extends along a portion of the fluid flow conduit length, and an element having a linear edge configured to mate with the at least one planar inner wall of the fluid flow conduit. The element is movable in a direction transverse to an axis of the conduit between an open position wherein fluid flows through the conduit and a closed position wherein the element substantially shuts off fluid flow in the conduit.