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특허 상세정보

Apparatus for the injection molding of fluid-filled plastic bodies

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-045/16   
미국특허분류(USC) 425/130 ; 264/32812 ; 264/572 ; 425/572
출원번호 US-0178607 (1994-01-07)
우선권정보 DE-3913109 (1989-04-21)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 32  인용 특허 : 0
초록

A device for producing moldings of plastic material having a cavity therein filled with a fluid comprises a mold cavity, an injector for injecting flowable plastic into the mold cavity, an injector for injecting a pressurized fluid into an interior portion of the plastic, and a side cavity connected to the mold to receive flowable plastic melt expelled by the injected pressurized fluid. The side cavity may be randomly lockable and may comprise a closing stuffer which rests flush with respect to the mold cavity interior walls.

대표
청구항

An injection molding device having a mold cavity which maintains a constant mold volume throughout a molding process and is defined by mold cavity walls comprised of separable walls, the device comprising: means for injecting pressurized flowable plastic melt into the mold cavity to completely fill the mold cavity with flowable plastic melt; means for injecting pressurized gas into an interior of the plastic melt after both (1) the mold cavity has been completely filled with plastic melt, and (2) a part of the plastic melt has cooled along the walls of t...

이 특허를 인용한 특허 피인용횟수: 32

  1. Eckardt Helmut,DEX ; Ehritt Jurgen,DEX ; Seuthe Alfons,DEX ; Gosdin Michael,DEX. Apparatus for producing plastic objects with solid sections and hollow sections. USP2001076264455.
  2. Karl R. Berdan CA. Gas assist needle in a molding machine. USP2002056386852.
  3. Guergov, Milko G.. Gas assisted injection molding with controlled internal melt pressure. USP2003116645587.
  4. Orsen, Mikael. Gas assisted moulding. USP2003126666999.
  5. Farmer, Michael L.; Riechers, Michael R.; Henneike, Todd A.. Integral molten evacuation channel. USP2012128337745.
  6. Gosdin Michael,DEX. Method and apparatus for producing hollow plastic objects with pressurized gas injection after overflow cut-off. USP1998065762861.
  7. Eckardt Helmut,DEX ; Ehritt Jurgen,DEX ; Seuthe Alfons,DEX ; Gosdin Michael,DEX. Method and apparatus for producing plastic objects with solid sections and hollow sections. USP2000116143237.
  8. Eckardt Helmut,DEX ; Ehritt Jurgen,DEX ; Seuthe Alfons,DEX ; Gosdin Michael,DEX. Method and apparatus for producing plastic objects with solid sections and hollow sections. USP1998075776412.
  9. Splain, William D.; Peota, Robert D.; Hennen, Alexandre; Cameron, Allan; Ryan, Mark T.; Pruitt, Jr., David L.. Method of assembling a shopping cart. USP2010097793948.
  10. Pruitt, Jr., David L.; Ryan, Mark T.; Shell, Charles E.; Peota, Robert D.; Crow, Kenneth R.; Sayer, Matthew E.. Method of molding a shopping cart. USP2010087780902.
  11. Murphy John F. ; Porter Randolph S.. Mold for use in a gas-assisted injection molding system and adjustable overflow pin assembly for use therein. USP1999025869105.
  12. Murphy John F.. Mold for use in a gas-assisted injection molding system and ejector pin subsystem including a blocking pin assembly for use therein. USP2000036042356.
  13. Murphy John F. ; Porter Randolph S.. Mold for use in a gas-assisted injection molding system and ejector pin subsystem including a split pin for use therein. USP2000036042355.
  14. Murphy John F.. Mold for use in a gas-assisted injection molding system and runner shut-off subsystem for use therein. USP2000056062842.
  15. Berdan Karl,CAX. Multi-venting molding apparatus. USP1998105824261.
  16. Hendry, James; Homann, Gregory A.; Turczynski, David. Open mold molding. USP2005056890478.
  17. Pearson, Terrence C.. Plastic expulsion process. USP2004076767487.
  18. Pearson, Terrence C.. Plastic expulsion process for forming hollow tubular products. USP2005106953546.
  19. Homann, Gregory A.; Turczynski, David. Plastic injection molded articles with hollow rib members. USP2005056890477.
  20. Homann, Gregory A.; Hendry, James; Turczynski, David. Plastic injection molding with moveable insert members. USP2005096939504.
  21. Homann, Gregory A.. Plastic injection molding with moveable mold members forming speaker grill. USP2005056899843.
  22. Thomas, Ronald. Process for gas assisted and water assisted injection molding. USP2003066579489.
  23. Thomas, Ronald. Process for gas assisted and water assisted injection molding. USP2005056896844.
  24. Thomas, Ronald. Process for pressure assisted molding of hollow articles. USP2004046716387.
  25. Matsumoto Masahito,JPX ; Funakoshi Satoru,JPX ; Matsubara Shigeyoshi,JPX. Process for producing thermoplastic resin hollow molded article. USP2000116146579.
  26. Gotterbauer Klaus,DEX. Process of and an apparatus for injection molding hollow-blown plastic bodies. USP1998115837186.
  27. Gotterbauer Klaus,DEX. Process of and an apparatus for injection molding hollow-blown plastic bodies. USP1998065759479.
  28. Splain,William D.; Peota,Robert D.; Hennen,Alexandre; Cameron,Allan; Ryan,Mark T.; Pruitt, Jr.,David L.. Shopping cart. USP200812D582122.
  29. Splain, William D.; Peota, Robert D.; Hennen, Alexandre; Cameron, Allan; Ryan, Mark T.; Pruitt, Jr., David L.. Shopping cart base. USP201009D623374.
  30. Peota, Robert D.; Splain, William D.; Tharp, Robert D.. Shopping cart handle. USP200904D591474.
  31. Peota,Robert D.; Splain,William D.; Tharp,Robert D.. Shopping cart seat member. USP200903D588774.
  32. Peota,Robert D.; Splain,William D.; Tharp,Robert D.. Shopping cart support assembly. USP200903D588775.