Patent ID: 6956321
Filing Date: 2005-10-18
Classification: C03B,H01J,Y02P

Abstract:
1. A funnel for a cathode ray tube, comprising: a body portion; an enlarged opening, substantially a rectangular shape and formed at one end of the body portion; a small-diameter opening, substantially a circular shape and formed at the other end of the body portion; a mold match line, formed near the enlarged opening by a mold matching of molds, the mold match line of the body portion residing at an outer wall of the body portion and extending along a whole circumference of the body portion; positioning references, formed on an outer wall of the body portion for determining the position when a panel for the cathode ray tube is sealed to the funnel; wherein a reference surface of the positioning references is formed as a flat plane that continues from the mold match line towards the small-diameter opening side; and wherein a front edge of the reference surface at the side of the enlarged opening is consistent with the mold match line.