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:
May. 17, 2005
Filed:
Mar. 24, 2000
Barry John Welch, Orakei, NZ;
Evan William Andrews, South Launceston, AU;
Barry John Welch, Orakei, NZ;
Evan William Andrews, South Launceston, AU;
Comalco Aluminum Limited, Brisbane, AU;
Auckland Uniservices Limited, Auckland, NZ;
Abstract
A method of determining an inlet flow rate (F) of a flowable material including passing an inlet stream of flowable material through a chamber () having an outlet aperture (); measuring a first rate of change of quantity of material in the chamber () when the material is entering at said inlet flow rate; measuring a second rate of change of quantity if material in the chamber () when no material is entering the chamber (); and calculating the inlet flow rate (F) from said first and second rates, wherein both rate measurements are made while the whole of the outlet aperture () of the chamber () of the chamber () is occupied by the flowable material.