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:
Oct. 28, 1997
Filed:
Oct. 15, 1996
Applicant:
Inventors:
Chao-Chi Peng, Hsinchu, TW;
Lyuji Ozawa, Hopewell Junction, NY (US);
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
445 43 ; 65 322 ; 65 34 ; 65 42 ; 65 43 ; 445 45 ;
Abstract
A method of evacuating and sealing a cathode ray tube, CRT, using softened glass frit to seal the exhaust hole through which the CRT is evacuated. A three way branch tube allows a shaft driven by a linear motion means to cover the exhaust hole with a sealing plug or plate and softened vitreous glass frit while the CRT is being evacuated. In one embodiment a getter is also used. Since the CRT is being evacuated when the vitreous glass frit is softened any gases evolved from the softened glass frit are removed by the vacuum pump and are not a problem to the sealed CRT.