Title:
VENT RING, NOZZLE ASSEMBLY FOR AN INJECTION MACHINE COMPRISING SAME, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2010/087610
Kind Code:
A2
Abstract:
The present invention relates to a vent ring which smoothly discharges gas contained in a molten resin flowing at a high pressure to the outside to produce high quality injection molded products, to a nozzle assembly for an injection machine comprising the vent ring, and to a method for manufacturing same. The vent ring according to the present invention comprises a first protrusion protruding in a lengthwise direction from the outer surface of one side thereof, a second protrusion protruding in a lengthwise direction from the inner surface of one side thereof, and a gas collection space formed between the first protrusion and the second protrusion, wherein said second protrusion has a vent ring microgroove formed in a radial direction.
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Inventors:
KIM JONG-SOO (KR)
Application Number:
PCT/KR2010/000481
Publication Date:
August 05, 2010
Filing Date:
January 27, 2010
Export Citation:
Assignee:
HANDO STEEL CO LTD (KR)
KIM JONG-SOO (KR)
KIM JONG-SOO (KR)
International Classes:
B29C45/34; B29C33/10
Foreign References:
| KR100822479B1 | 2008-04-16 | |||
| KR200393017Y1 | 2005-08-17 | |||
| KR20060081990A | 2006-07-14 | |||
| JP2005153223A | 2005-06-16 | |||
| KR100227076B1 | 1999-10-15 | |||
| KR20070003789A | 2007-01-05 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
유미특허법인 (KR)
유미특허법인 (KR)
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