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:
Mar. 31, 1992
Filed:
Jun. 04, 1990
Applicant:
Inventor:
Edward F Dougherty, League City, TX (US);
Assignee:
FMC Corporation, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
422 681 ; 422 78 ; 422 80 ; 436 34 ; 436135 ; 73 1904 ;
Abstract
An apparatus and a method is provided for measuring the rate of flow of gas from a sample of a peroxygen, such as, hydrogen peroxide, thereby indicating the stability of the peroxygen. The invention overcomes the disadvantages of the prior methods which are less precise and have a long time delay.