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:
Feb. 25, 1992
Filed:
May. 08, 1990
Applicant:
Inventors:
Raymond G Capek, Elmhurst, IL (US);
Siegfried M Greiner, Crystal Lake, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
445 30 ; 445 68 ;
Abstract
A mask support structure is installated as a prefabricated unit in a tension mask color cathode ray tube having a faceplate with a centrally located screening area. The structure has a predetermined Q-height for ultimate affixation on opposed sides of the screening area by means of an inventive fixture and process, which is characterized by Q-height spacers. The structure has a base with a hardened layer of cement of selected thickness thereon for affixing the structure to the faceplate, and on an opposed side, a surface for receiving and securing the mask.