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:
Apr. 14, 1998
Filed:
Nov. 18, 1996
Applicant:
Inventors:
Michael A Estenson, Ely, IA (US);
J Scott Petty, Cedar Rapids, IA (US);
Joseph R Adamski, Cedar Rapids, IA (US);
Assignee:
Raytheon Corporation, Lexington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
25033911 ; 2503571 ; 2503418 ; 2503391 ; 68 1205 ;
Abstract
A system for detecting the presence of a fluid comprising: means for transmitting at least two infrared electromagnetic signals toward a fluid, each of the infrared electromagnetic signals have different wavelengths. It also includes means for sensing the reflection of each of the electromagnetic signals as well as means for creating a plurality of electrical signals indicating the intensity of the reflected signals. Finally, it includes means for determining the presence of said fluid by comparing the intensities of the plurality of electrical signals.