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:
Mar. 14, 1989

Filed:

Aug. 22, 1986
Applicant:
Inventors:

William E Shell, Los Angeles, CA (US);

Jackie R See, Fullerton, CA (US);

Assignee:

See/Shell Biotechnology, Inc., Los Angeles, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128691 ; 7386105 ; 7386107 ;
Abstract

A process for making a volumetric determination of the quantity of a fluid, such as a liquid, by evaluation of a small sample of that fluid. The method comprises labeling microspheres with a non-radioactive substance and introducing the labeled microspheres into a body of fluid for which a determination is to be made. The microspheres are allowed to disperse in the body of fluid. Thereafter, a sample of the fluid which is of know or measurable volume, is selected. The number of microspheres present in the sample is then determined, from which a calculation of the volumetric measurement of the fluid may be made. The process is also adaptable to measuring the flow rate of a moving stream of fluid, since volume is one of the parameters of flow rate, and is also adaptable to determine the percentages of fluid components present in a mixture thereof.


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