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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Method of injection molding thermoplastic through multiple gates

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-045/22   
미국특허분류(USC) 264/2972 ; 264/3287 ; 264/3288 ; 264/32815
출원번호 US-0352700 (1989-05-10)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 55  인용 특허 : 19
초록
▼

A method and apparatus for thermoplastic multigated single cavity or multicavity injection molding. A plasticated melt flows along a melt distributing passageway (3), (15), (8), and enters through a plurality of gates (35) associated with and enters through a plurality of gates (35) associated with one or more mold cavity (18). Melt temperature is maintained by means of manifold heaters (26), bushing heater band (20) and, most preferably, heated probe (16). A unique melt conditioning element placed just upstream of gate (35) forces the melt to enter a pl...

대표
청구항
▼

In a multicavity injection molding process, a method for improving a thermoplastic\s melt quality and increasing melt temperature entering a gate of each cavity of a multicavity mold and thereby improving molded part quality, wherein said improvement is achieved by the method of: (a) injecting a plasticated melt under pressure through a nozzle seated in a sprue bushing into a multicavity moldset melt delivery system, said delivery system including melt passageways maintained continuously in fluid communication between the sprue bushing on an upstream end...

이 특허에 인용된 특허 (19)

  1. Weber Hermann P. (5506 Beckford Ave. Tarzana CA 91356). Apparatus for injection molding lenses. USP1977024008031.
  2. Kessler Milton (6690 Harrington Ave. Youngstown OH 44512). Apparatus for mixing and blending constituents of a flow of thermoplastics material. USP1984104478516.
  3. Mller Walter (Battenberg DEX). Arrangement for supplying molten plastic material. USP1982074340156.
  4. Neuman Clayton L. (Coon Rapids MN). Dispersion apparatus for injection molding filter. USP1977104054273.
  5. Putkowski ; Ladislao W.. Filter for liquids. USP1978064097216.
  6. Morrison Rocky V. (Redondo Beach CA). Hot sprue assembly for an injection molding machine. USP1983114412805.
  7. Ando Nobuo (Yokohama JPX) Satou Isao (Yokohama JPX) Maehara Kazuo (Yokohama JPX). Hot-runner mold and injection molding method making use of the same. USP1980074212624.
  8. Mller Walter (Battenberg DEX). Hot-runner tool for supplying molten plastic to an injection mold. USP1986094609341.
  9. Lord John (Georgetown CAX) Gellert Jobst U. (Glen Williams CAX). Injection molding filter assembly. USP1981034256584.
  10. Lord John (Georgetown CAX) Gellert Jobst U. (Glen Williams CAX). Injection molding filter assembly. USP1981074280908.
  11. Chang Shao Chi (Room No. 503 ; Brier Lamtam ; No. 57 ; Nakano-shinden Shizuoka JPX). Method for manufacturing molded products of polyethylene terephthalate. USP1987064670203.
  12. Laliberte Albert J. (South Woodstock CT) Jerominek Joseph L. (Dudley MA). Method for molding ophthalmic lenses. USP1982124364878.
  13. Hauser Hans Ulrich (Niederweningen CH) Hartmann Eduard (Urdorf CH). Method for regulating the hardening time of a plastic mass in the mold of an injection molding machine. USP1976023940465.
  14. Sulin George (16704 Woodbury Ave. Cleveland OH 44135). Mixing nozzle for injection molding. USP1986054591274.
  15. England ; Jr. Herbert C. (5018 1st Ave. N. Birmingham AL 35212) Voigt ; Jr. William C. (5018 1st Ave. N. Birmingham AL 35212). Motionless mixing device. USP1976043953002.
  16. Aoki Katashi (6037 Ohaza-Minamijo Sakaki-machi ; Hanishina-gun ; Nagano-ken JPX). Nozzle device for molding plastics. USP1981114298332.
  17. Mueller Walter (Battenberg DEX). Nozzle for a plastics injection molding machine, an extruder orifice, or a hot-chamber tool. USP1981084285660.
  18. Cunningham Ashley D. (c/o Cunningham Industries ; Inc. ; P.O. Box 353 Pawling NY 12564). Static mixer for flowable materials, and related method. USP1977064027857.
  19. Osuna-Diaz J. M. (908 Ravine Ter. Ct. Rochester MI 48067). Two-stage filter for injection molding machine. USP1984024434053.

이 특허를 인용한 특허 피인용횟수: 55

  1. Akopyan, Razmik L.. Apparatus and method for molding polymer parts by displacement injection molding. USP2010127846369.
  2. Gellert, Jobst U.; Babin, Denis L.. Apparatus and method for multi-layer injection molding. USP2003126655945.
  3. Gellert, Jobst U.; Babin, Denis L.. Apparatus and method for multi-layer injection molding. USP2003116648622.
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  5. Jae Hong Choi ; Jerald L. Golmanavich ; Barry B. Hofmaster. Apparatus for multiple cavity injection molding. USP2002096450798.
  6. Rodenburgh Case Cornelis ; Coulter John Paul ; Oyeleye Olagunju Oladipo. Apparatuses and methods for controlling the fill of tooling cavities. USP1999126001296.
  7. Dassen, Tim Willem Joseph Leonard; Brands, Davy Wilhelmus Anna; Martin, Claire Marie-Annick; Yanev, Angel Stoyanov; Schellekens, Geert Jan. Closed section geometry, hollow shape, vehicle components. USP2018059981534.
  8. Shusaku Nishiyama JP; Naoki Asano JP; Shingo Yamaguchi JP. Computer aided design system and three-dimensional design method using the same and storing medium. USP2002066408217.
  9. Babin,Denis; Colonico,Gino. Hot runner manifold plug for rheological balance in hot runner injection molding. USP2008017320589.
  10. Teng Alex,CAX. Hot runner valve gate and method for eliminating unidirectional molecular orientation and weld lines from solidified res. USP1999055900200.
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  12. Salamon Brent A. (Midland MI) Donald Robert J. (Midland MI). In-runner polymer melt mixer. USP1997115688462.
  13. Maus Steven M. ; Galic George J.. Injection molded paired thermoplastic spectacle lenses suited for fully automated dip hardcoating. USP2000026024902.
  14. Maus,Steven M.; Galic,George J.. Injection molded thermoplastic spectacle lens suited for fully automated dip hardcoating. USP200803RE40152.
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  21. Lausenhammer Manfred,DEX ; Mai Arnold,DEX ; Schwarzkopf Udo,DEX ; Gauss Ralph,DEX. Injection nozzle and method. USP2001066245278.
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  23. Olaru, Gheorghe; Goslinski, Rhonda. Melt redistribution element for an injection molding apparatus. USP2009117614872.
  24. Maus Steven M. ; Galic George J.. Method and apparatus for injection-compression molding & ejecting paired thermoplastic spectacle lens suited for fully a. USP1998025718849.
  25. Crain,Stephen B.; Moore,Christopher T.. Method of renewing a mold block. USP2007077241405.
  26. Dong,Jiawen; Guo,Hua; Hossan,Robert John. Methods of purifying polymeric material. USP2007077244813.
  27. Sicilia,Robert. Mixing device. USP2007097270538.
  28. Crain,Stephen B.; Moore,Christopher T.. Modular mold. USP2007047204685.
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  30. Crain,Stephen B.; Moore,Christopher T.. Mold system kit. USP2009037500843.
  31. Jenko, Edward Joseph; Dezon-Gaillard, Patrice Fabien; Bouti, Abdeslam; Plumpton, James Osborne. Mold tool system having manifold body including uninterrupted melt channels. USP2013098540507.
  32. Jenko, Edward Joseph; Plumpton, James Osborne; Dezon-Gaillard, Patrice Fabien; Bouti, Abdeslam. Mold-tool system having a manifold body defining uninterrupted melt channels. USP2012068206146.
  33. Belzile, Manon Danielle; MacLeod, Darrin. Mold-tool system having a melt-splitting device including uninterrupted melt channels extending from a melt inlet to a plurality of melt outlets. USP2012058167609.
  34. Belzile, Manon Danielle; MacLeod, Darrin Albert. Mold-tool system having melt splitting device including uninterrupted melt channels extending from inlet and outlets. USP2013108545212.
  35. Matsui, Yutaka; Murase, Jun. Molding system and related method using a side-gated injection mold with vacuum assist and resulting blow molded article. USP2004056740283.
  36. Niewels,Joachim Johannes; Ansari,Omeir Shahid; Janzen,William Cornelius; Zuraw,Michael Keith; Miljkovic,Nenad. Molding-system viscous-drag sensor. USP2008077393198.
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  45. Harima,Issei; Saito,Yoshiaki; Tochioka,Takahiro. Resin-made interior member for opening and closing body and molding die and molding method therefor. USP2007097270863.
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  50. Olaru,George. Stack mold having a melt homogenizing element. USP2006107115226.
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  55. Brown Paul Philip ; Sorensen Jens Ole,KYX. insulated-runner injection molding method with metered injection to form insulated runner. USP2001026190585.

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