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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.:

US 4560900 B1

PDFFull Text
Date of Patent:
Dec. 24, 1985

Filed:

Aug. 02, 1982

Cathode ray tube device with electromagnetic shield casing

Applicant:
Inventors:

Makoto Ikegaki, Fukaya, JP;

Masayuki Nakanishi, Isezaki, JP;

Humiyuki Sato, Fukaya, JP;

Tokuo Hashimoto, Fukaya, JP;

Assignee:

Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;

Attorney:

Cushman, Darby & Cushman

Primary Examiner:

Palmer C DeMeo

Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313479 ; 315 85 ; 313312 ; 313482 ;
Abstract

A cathode ray tube device which comprises an electromagnetic shielding casing, a cathode ray tube held in said casing, an elastic material provided between the casing and cathode ray tube in contact therewith, and a space or porous material formed in part of a region defined between the casing and elastic material, and wherein said space or porous material suppresses the axial shifting of the cathode ray tube resulting from the thermal expansion of the elastic material when it is highly heated.

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Ikegaki, Makoto. (1985). Cathode ray tube device with electromagnetic shield casing (U.S. Patent No. 4560900). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4560900

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