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특허 상세정보

Mold for use in a gas-assisted injection molding system and runner shut-off subsystem for use therein

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-045/00    B29C-045/40   
미국특허분류(USC) 425/130 ; 264/572 ; 425/444 ; 425/556 ; 425/577
출원번호 US-0060240 (1998-04-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Brooks & Kushman P.C.
인용정보 피인용 횟수 : 1  인용 특허 : 20
초록

A mold for use in a gas-assisted injection molding system having a nozzle includes a runner shut-off subsystem which prevents pressurized gas from flowing through the runnerand into the nozzle. A pair of pins are preferably mounted on a plate to move therewith between extended and retracted positions of the plate. The pins are slidably fit within one mold half of the mold to move within the runner between extended gas-blocking positions to block the flow of pressurized gas through the runner and into the nozzle and retracted positions to allow the flow o...

대표
청구항

[ What is claimed is:] [1.] A mold for use in a gas-assisted injection molding system including a nozzle for injecting molten plastic into the mold, the mold comprising:a first mold half;a second mold half, the first and second mold halves being movable relative to each other between an open position and a closed position, wherein the first and second mold halves define an article-defining cavity, a runner, and a gate for flow coupling the runner to the article-defining cavity; anda runner shut-off subsystem including:a plate,a pair of pins mounted on th...

이 특허에 인용된 특허 (20)

  1. Yasuike ; Akio ; Kataoka ; Hiroshi ; Fujikawa ; Tutomu ; Suzuki ; Naoto. Apparatus for injection molding synthetic resin materials. USP1978084106887.
  2. Hendry James W. (Brooksville FL). Apparatus for injection molding with pressurized fluid assist in the mold. USP1993085232711.
  3. Jaroschek Christoph (Herbolzheim DEX). Apparatus for the injection molding of fluid-filled plastic bodies. USP1995065423667.
  4. Jaroschek Christoph (Herbolzheim DEX). Apparatus for the injection molding of fluid-filled plastic bodies. USP1992025090886.
  5. Nelson William A. (New Baltimore MI). Check valve for a fluid-assisted plastic injection molding apparatus. USP1992095149546.
  6. Prusha Thomas J. (Winona MN). Compression molding apparatus. USP1993045204127.
  7. Shah Suresh D. (Troy MI) Visconti Carl H. (Clarkston MI). Gas-assisted plastics injection molding with controlled melt flow and method of controlling melt flow. USP1996095558824.
  8. Ohno Masakazu (Tokyo JPX) Yoshizawa Yukio (Nagaoka JPX) Miyajima Shoji (Nagaoka JPX) Sato Sumio (Nagaoka JPX) Inage Toshio (Niigata JPX) Kobayashi Motohiro (Nagaoka JPX). Gate-cut and ejection control apparatus and control method for an injection molding machine. USP1996025492658.
  9. Schad Robert D. (Toronto CAX) Jenko Edward J. (Bolton CAX). Hot runner sliding nozzle. USP1996045507637.
  10. Hofstetter Otto (Uznach CHX) Fernandez Luis (Uznach CHX). Injection molding device. USP1996125582851.
  11. Schomblond Jacques (Montagnieu FRX). Injection molds for the manufacture of composite bodies. USP1987074682943.
  12. Sayer Matthew E. (Tamworth GB2). Injection moulding apparatus. USP1988044740150.
  13. Hendry James W. (Brooksville FL). Method for injection molding of plastic article. USP1997035607640.
  14. Hendry James W. (Brooksville FL). Method of and apparatus for injection molding with pressurized fluid assist. USP1990074943407.
  15. Loren Norman S. (Warren MI). Method of and apparatus for injection molding with pressurized-fluid assist. USP1990074942006.
  16. Baxi Indra R. (Solon OH) Parr Alan (Ontario CAX). Miniaturized for gas-assisted injection molding. USP1992015080570.
  17. Adams William E. (Portersville PA). Mold for injection molding of suction cups. USP1988034734027.
  18. Berdan Karl,CAX. Multi-venting molding apparatus. USP1998105824261.
  19. Auer Adam (March-Holzhausen DEX). Pressurized fluid assisted injection molding apparatus. USP1994085336072.
  20. Hendry James W. (Brooksville FL). Process for injection molding and hollow plastic article produced thereby. USP1992035098637.