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. 17, 2001
Filed:
Jun. 21, 1999
Applicant:
Inventors:
Assignee:
Nihon Kohden Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A62B 7/00 ;
U.S. Cl.
CPC ...
A62B 7/00 ;
Abstract
Windows,which allow infrared light to be transmitted therethrough are opened at opposed positions of side walls of a flow tube,, respectively. A hexagonal frame,is air tightly attached to each of the apertures. Each frame,is protruded from the inner face of the flow tube,. A transparent window on which an anti-fogging layer,is formed stretches on the inner face of each of the frame,, so that waterdrops flowing through the flow tube,are caused to flow along both the sides of the frame,, thereby preventing the waterdrops from flowing over the anti-fogging layer