Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Reexamination Certificate
2006-06-13
2006-06-13
Williams, Joseph (Department: 2879)
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
C427S064000, C445S022000
Reexamination Certificate
active
07059929
ABSTRACT:
A compact self-ballasted fluorescent lamp includes an arc tube in which a phosphor layer is formed on an inner surface of a double spiral glass tube formed into a double spiral. The phosphor layer is formed by a process of injecting a suspension for forming the phosphor layer into the double spiral glass tube; a process of coating the inner surface of the double spiral glass tube with the suspension; a process of draining the suspension from the double spiral glass tube; a process of preliminarily drying the suspension until the suspension do longer flows according to self weight, while rotating the double spiral glass tube in a state in which a spiral axis of the double spiral glass tube is at an angle of 100 degrees with respect to a vertical axis and a turning part of the double spiral glass tube is downward; and process of completely drying the partially dried double spiral glass tube.
REFERENCES:
patent: 2901375 (1959-08-01), Patterson et al.
patent: 2004/0145319 (2004-07-01), Fujiwara et al.
patent: 10/50259 (1998-02-01), None
Amano Toyokazu
Iida Shiro
Itaya Kenji
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