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. 10, 1992
Filed:
Feb. 27, 1991
Applicant:
Inventors:
Peter G Davey, Oxford, GB;
Jacques E Hoffmann, Chicago, IL (US);
Assignee:
InterTech Development Company, Skokie, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7320422 ; 73273 ;
Abstract
A fluid flow sensing apparatus for measuring very low fluid flows comprising a fluid mass flow sensor for measuring the mass flow rate of a fluid from a temperature differential between predefined points within the sensor; a fluid flow channeling element for accepting the fluid at an input temperature and pressure and directing the fluid across the sensor, and wherein the input temperature and pressure about the sensor is maintained; and a fluid flow dampening element for providing an average fluid flow to the sensor.