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특허 상세정보

Method and apparatus for injecting a molten material into a mold cavity

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-045/34   
미국특허분류(USC) 264/040.1 ; 264/040.3 ; 264/051 ; 264/085 ; 264/572 ; 264/328.1 ; 264/328.13 ; 425/04R ; 425/146 ; 425/546
출원번호 US-0561015 (1995-11-21)
발명자 / 주소
대리인 / 주소
    Brooks & Kushman P.C.
인용정보 피인용 횟수 : 18  인용 특허 : 16
초록

A method of injection molding for use with an injection molding machine includes: a) generating pressurized gas and pressurized moisture within molten plastic as plastic pellets are plasticized in the injection molding machine, the pressurized gas and the pressurized moisture having a total pressure defining an internal counterpressure within the molten plastic; (b) pressuring air within a cavity of a mold in the injection molding machine to an air pressure level which is substantially equal to the internal counterpressure in order to counterbalance the ...

대표
청구항

[ What is claimed is:] [1.] A method of injecting molten plastic into a mold cavity, comprising:pressurizing a gas in the mold cavity prior to injection of molten plastic into the mold cavity and generating static pressure in the molten plastic;commencing injection of the molten plastic into the mold cavity; andsensing, mathematically deriving and monitoring the static pressure of the molten plastic and the pressure of the gas in the mold cavity as the molten plastic is injected into the mold cavity.

이 특허에 인용된 특허 (16)

  1. Lemelson Jerome H. (85 Rector St. Metuchen NJ 08840). Apparatus and method for controlling the internal structure of matter. USP1981094288398.
  2. Hendry James W. (Spring Hill FL). Apparatus for compressing a gas. USP1988064750409.
  3. 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.
  4. Guergov Milko G. (615 Wahington ; #5 Monroe MI 48161). Method and apparatus for injection molding. USP1995085441680.
  5. Korpela Heikki (Hvitsmansgatan 8 Helsingborg SEX S-252 37) Ampler Leif (Kaprifolgatan 65 Vstra Frlunda SEX S-421 69). Method and apparatus for measuring and controlling the volumetric weight of an expanded particulate material. USP1989074852028.
  6. Hendry James W. (Brooksville FL). Method of and apparatus for injection molding with pressurized fluid assist. USP1990074943407.
  7. Lemelson Jerome H. (Call Box 14-286 ; 868 Tyner Way Incline Village NV 89450). Method of controlling the internal structure of matter. USP1993115264163.
  8. Guergov Milko G. (615 Washington #5 Monroe MI 48161). Method of injecting molten metal into a mold cavity. USP1996105566743.
  9. Balevski ; Angel Tonchev ; Nikolov ; Ivan Dimov ; Mateev ; Evgeni Hris tov ; Trifonov ; Todor Kostadinov ; Kojuharov ; Vassil Vladimirov. Method of producing molded parts with a smooth noncellular skin and a cellular core from foamable thermoplastic materia. USP1978054092385.
  10. Lemelson Jerome H. (85 Rector St. Metuchen NJ 08840). Molding apparatus. USP1982034318874.
  11. Hayakawa Akifumi (Tokyo JPX) Aiba Akira (Kawasaki JPX) Orihara Eiki (Tokyo JPX) Fukushima Kiyoshi (Fujisawa JPX). Mould assembly for foam moulding of plastic materials. USP1979054153231.
  12. Arnold John W. (West Bloomfield MI) Mills Steven L. (Bloomfield Hills MI). Process and apparatus for nucleation control adapted for reaction injection molding of cellular products. USP1982014312820.
  13. Hendry James W. (Brooksville FL). Process for injection molding and hollow plastic article produced thereby. USP1992035098637.
  14. Angell ; Jr. Richard G. (Somerville NJ) Anderson Robert J. (Whitehouse Station NJ) Hobbs Kenneth E. (Helmetta NJ) James David E. (Elkview WV) Marsh B. Duane (Somerville NJ). Process for producing molded structural foam article having a surface that reproducibly and faithfully replicates the su. USP1976103988403.
  15. Shah Suresh D. (Troy MI). Pulsating gas-assisted injection molding method and apparatus. USP1996015482669.
  16. Kopernicky Jaro (Bramalea CAX). Removing volatiles from plastic materials delivered to an extrusion or injection molding machine. USP1987014636084.

이 특허를 인용한 특허 피인용횟수: 18

  1. Altonen, Gene Michael; Neufarth, Ralph Edwin; Schiller, Gary Francis; Berg, Jr., Charles John. Alternative pressure control for a low constant pressure injection molding apparatus. USP2014068757999.
  2. Altonen, Gene Michael; Neufarth, Ralph Edwin; Schiller, Gary Francis. Apparatus for injection molding at low constant pressure. USP20180910076861.
  3. Altonen, Gene Michael; Neufarth, Ralph Edwin; Stevens, John Boyet; Prosise, Robert Lawrence; Poland, James Edward; Layman, John Moncrief; Lumpkin, Danny David. Injection mold having a simplified cooling system. USP2016109475211.
  4. Altonen, Gene Michael; Neufarth, Ralph Edwin; Stevens, John Boyet; Prosise, Robert Lawrence; Poland, James Edward; Layman, John Moncrief; Lumpkin, Danny David. Injection mold having a simplified cooling system. USP2015079089998.
  5. Neufarth, Ralph Edwin; Robinson, Niall D.; Scharrenberg, Rainer; Prosise, Robert Lawrence; Berg, Jr., Charles John. Injection mold having a simplified evaporative cooling system. USP2013118591219.
  6. Neufarth, Ralph Edwin; Robinson, Niall D; Scharrenberg, Rainer; Prosise, Robert Lawrence; Berg, Jr., Charles John. Injection mold having a simplified evaporative cooling system or a simplified cooling system with exotic cooling fluids. USP2017069682505.
  7. Altonen, Gene Michael; Neufarth, Ralph Edwin; Breidenbach, Vincent Sean; Pratel, Dennis James; Davis, III, Walter Thomas; Lumpkin, Danny David. Injection mold with fail safe pressure mechanism. USP2017039604398.
  8. Desmith, Brian L.; Mozer, Wilfried; Zawacki, Jeffrey R.. Interchangeable mold tooling. USP2012038128394.
  9. Altonen, Gene Michael. Low constant pressure injection molding system with variable-position molding cavities. USP2016069364977.
  10. Altonen, Gene Michael; Dodd, Michael Thomas; Ramon Martinez, Natalia Maria; McConnell, Kimberly Nichole; Lumpkin, Danny David; Breidenbach, Vincent Sean; Lawson, John Russell. Method and apparatus for substantially constant pressure injection molding of thinwall parts. USP2017119815233.
  11. Altonen, Gene Michael; Dodd, Michael Thomas; Ramon-Martinez, Natalia Maria; McConnell, Kimberly Nichole; Lumpkin, Danny David; Breidenbach, Vincent Sean; Lawson, John Russell. Method and apparatus for substantially constant pressure injection molding of thinwall parts. USP2016039272452.
  12. Altonen, Gene Michael; Berg, Jr., Charles John; Neufarth, Ralph Edwin; Schiller, Gary Francis; Layman, John Moncrief; Scharrenberg, Rainer. Method for injection molding at low, substantially constant pressure. USP2017079707709.
  13. Altonen, Gene Michael; Dodd, Michael Thomas; Ramon-Martinez, Natalia Maria; McConnell, Kimberly Nichole; Lumpkin, Danny David; Breidenbach, Vincent Sean; Lawson, John Russell. Method for substantially constant pressure injection molding of thinwall parts. USP2014098828291.
  14. Mozer, Wilfried; Desmith, Brian L.. Method of manufacture of a foamed core class “A” article. USP2011118048347.
  15. Altonen, Gene Michael; Neufarth, Ralph Edwin; Schiller, Gary Francis; Berg, Jr., Charles John. Non-naturally balanced feed system for an injection molding apparatus. USP2014128911228.
  16. Saki Tomihiro,JPX ; Kogami Kanya,JPX ; Watanabe Toshihiro,JPX ; Kamada Tsuneo,JPX. Nozzle for injection molding rubber products. USP2001086280175.
  17. Altonen, Gene Michael; Breidenbach, Vincent Sean; McConnell, Kimberly Nichole; Lumpkin, Danny David; Huang, Chow-Chi; Berg, Jr., Charles John. Reduced size runner for an injection mold system. USP2017049610721.
  18. Valentz, Arthur J.. Support base. USP2003076592093.