Agitating – Rubber or heavy plastic working – With specified vent means
Patent
1995-02-16
1996-10-01
Cooley, Charles E.
Agitating
Rubber or heavy plastic working
With specified vent means
425203, 425812, 425815, 425DIG60, B29C 4563
Patent
active
055607080
ABSTRACT:
The invention includes a shielding portion having a vent hole for discharging a gas composition G generated from a molten resin R to a barrel cylinder and having a shielding steam holding chamber C formed in connection with the barrel cylinder, the shielding steam holding chamber communicating with the vent hole. A steam supplying portion is provided for supplying a steam S to the shielding holding steam chamber C, and a discharging port portion is provided for discharging the steam S and the gas composition G from the inside of the shielding steam holding chamber C. Thereby, oxidization or carbonization of the molten resin can be prevented. In addition, adverse influence to the natural system can be removed and a decrease in the cost of the apparatus can be realized.
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patent: 3686848 (1972-08-01), Miller et al.
patent: 4060226 (1977-11-01), Schweller
patent: 4107787 (1978-08-01), Ocker
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patent: 4484878 (1984-11-01), Anders et al.
patent: 4846054 (1989-07-01), Mange et al.
patent: 5385462 (1995-01-01), Kodama et al.
Anzai Kazuo
Takizawa Kiyoto
Cooley Charles E.
Nissei Plastic Industrial Co. Ltd.
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