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:
Aug. 03, 1993
Filed:
Aug. 05, 1992
Applicant:
Inventors:
William A Rowe, Inverness, IL (US);
Paul Strauss, Chicago, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
5116574 ; 5116575 ; 5116591 ; 409178 ; 409189 ; 409132 ;
Abstract
A localized grinder is traversed in series over flat tension mask support rails affixed to a CRT front panel to produce a constant 'Q'-height on the mask support surface above the rails. A local measuring device is used to develop point-specific rail height information relative to the screen edges for operation of the grinder in order to ascertain an effective 'Q'-height measurement from the panel surface.