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. 08, 1989
Filed:
May. 04, 1988
Arnoldus H Van Eck, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The invention relates to a method of manufacturing an electron gun for use in a cathode ray tube. The electrodes of the gun have plate-shaped fastening members (19) which at the free end partly surround an aperture (45). One step of the method is the bonding to each other of the electrodes and the supports (21, 22) by softening the supports and making the fastening members penetrate the supports. The protruding part (44) of the fastening member is at an angle with the direction of penetration, such that a constrained material flow through the aperture (45) develops. Thus, the fastening members (19) cool down and are clamped along various lines (46, 47, 48), which leads to an improved microphonic behaviour.