Funnel for cathode ray tube and mold for making the same

Details Funnel for cathode ray tube and mold for making the same Funnel for cathode ray tube and mold for making the same

2005-10-18

2005-10-18

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Envelope

C313S002100

Reexamination Certificate

active

06956321

ABSTRACT:
The reference surface of the positioning reference on the funnel is formed as a flat plane from a mold match line towards a small-diameter opening side. In addition, the reference surface of the positioning reference is formed in parallel with or in a direction near a central axis line of the funnel from the mold match line towards the small-diameter opening side with respect to a plane which is in parallel with the central axis line and includes the mold match line.

REFERENCES:
patent: 5248914 (1993-09-01), Capek et al.
patent: 6227394 (2001-05-01), Shinoda
patent: 63-010447 (1988-01-01), None
patent: 08-111189 (1996-04-01), None
patent: 60-133746 (1999-04-01), None
patent: WO 01/08194 (2001-02-01), None

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