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.

Date of Patent:
Dec. 25, 1990

Filed:

Apr. 16, 1990
Applicant:
Inventor:

Noboru Toyama, Mobara, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
445 57 ; 445 45 ; 445 25 ;
Abstract

This invention relates to a method of and an apparatus for baking the silicate films, which are formed on the front glass panels of cathode-ray tubes by a spraying or coating operation, so as to fix the films stably to the front glass panels. The front glass panels only, which are positioned in opposition to infrared ray radiation panels provided in the upper portion of a heating furnace body, are heated with the radiant heat from the infrared ray radiation panels. The radiant heat-screening isolation plates are provided between the front glass panels and funnels, and at least a part, which is below these isolation plates, of the furnace body is opened or cooled.


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Toyama, Noboru. (1990). Method and apparatus for manufacturing cathode-ray tubes (U.S. Patent No. 4979919). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4979919

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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