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:
Sep. 20, 1983
Filed:
Aug. 03, 1981
Applicant:
Inventor:
Michael P Juaire, Chaska, MN (US);
Assignee:
Detector Electronics Corp., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356239 ; 2502521 ; 250372 ;
Abstract
Apparatus for detecting hazardous radiation with a light sensitive radiation receiving tube enclosed in a housing behind a transparent window, and including an auxiliary internal light source positioned for transmitting light rays into the window and reflecting a portion thereof from the front interface surface of the window back to an internal mirror and to the radiation detection tube for self checking purposes.