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.

Date of Patent:
Jun. 13, 2006

Filed:

Feb. 11, 2004
Applicants:

Jill M. Cummings, Pinckney, MI (US);

Christopher C. Morgan, Jr., Rochester Hills, MI (US);

Roy Fewkes, Farmington Hills, MI (US);

James L. Linden, Rochester Hills, MI (US);

Diana Foghel, Dexter, MI (US);

Inventors:

Jill M. Cummings, Pinckney, MI (US);

Christopher C. Morgan, Jr., Rochester Hills, MI (US);

Roy Fewkes, Farmington Hills, MI (US);

James L. Linden, Rochester Hills, MI (US);

Diana Foghel, Dexter, MI (US);

Assignee:

General Motors Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 7/00 (2006.01); G01N 9/00 (2006.01); G01N 33/18 (2006.01); G01N 33/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A test apparatus for measuring the air entrainment characteristics of a fluid includes a reservoir for containing the fluid, an aerator apparatus to cause air entrainment of the fluid, and a density meter to measure the effects of air entrainment on fluid density. The test apparatus enables in-situ measurement of the transient air entrainment behavior of the fluid. A corresponding method is provided.


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