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:
Nov. 29, 1988
Filed:
Feb. 20, 1987
Applicant:
Inventor:
R Alan Duckworth, Farnham, GB;
Assignee:
Briggs Technology, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7386162 ;
Abstract
A mass flow meter includes a hollow base pipe having an inlet adapted to be attached to the discharge line of an air compressor or like apparatus to be tested. The base pipe also has an outlet end which is fitted with one of a plurality of convergent nozzles of differing, known throat diameters. A pressure gauge is fitted to the base pipe, upstream of the nozzle, to sense the pressure therein. The pressure gauge has ring-shaped mass flow rate indicia thereon which are individually calibrated to conform to each of the sized nozzles to permit direct reading of mass flow rates as a function of pressure.