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:
Jan. 22, 1991
Filed:
Mar. 09, 1989
Tetsuya Okuno, Tokyo, JP;
Senju Metal Industry Co., Ltd., Tokyo, JP;
Abstract
An infrared panel heater includes a housing having a gas inlet and a gas discharge opening covered by a porous metal panel. An electric heating element is disposed in the housing between the panel and the gas inlet for heating the panel for emission of infrared radiation therefrom. A plurality of spaced, parallel gas stream distributor plates are disposed in the housing between the heating element and gas inlet and are each provided with a plurality of openings forming the sole flow path for gas from the inlet to the discharge opening. The openings in each plate are uniform in diameter with the diameter of the openings in the respective plates decreasing as the plate is situated closer to the heating element so that a uniform gas distribution is achieved across the entire panel area. The outer surface of the panel may be coated with a porous ceramic infrared emitting layer. The center of the openings in adjacent plates are unaligned in the direction of gas flow and the total area of the openings in any one plate is equal to that of any other plate. The heating element may be in contact with the metal panel.