Patent · US Expired

Apparatus for controlling and metering fluid flow

US7131451B2 · kind B2 · utility

8Cited by

34References

25Claims

0Family size

Assignee

Rivatek Incorporated · US

Inventors

Dale Nugent · Minneapolis, US
John A. Kielb · Eden Prairie, US
Mark Daniel Litecky · Minneapolis, US

Key dates

Filing date	Dec 3, 2003
Grant date	Nov 7, 2006
Priority date	—
Expiry date	Mar 27, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7761
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.