IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0085372
(2002-02-28)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
22 |
초록
▼
The present invention provides a process for fluid assisted injection molding comprising the step of providing an injection molding apparatus having a mold body that defines a mold cavity. The process further comprises the steps of supplying a quantity of fluent plastic to the mold cavity, followed
The present invention provides a process for fluid assisted injection molding comprising the step of providing an injection molding apparatus having a mold body that defines a mold cavity. The process further comprises the steps of supplying a quantity of fluent plastic to the mold cavity, followed by injecting a fluid into the mold cavity. The fluid forms an expanding fluid pocket in the mold cavity, driving plastic to the furthest recesses of the mold and ensuring a smooth surface finish of the final molded product. A reservoir is selectively connectable to a plastic injection runner, and can be opened to the runner to receive molten plastic ejected by the introduction of the fluid to the mold cavity. When the reservoir is thusly connected, the pressure of the fluid forces the plastic through a supply passage, in a direction substantially opposite to its initial injection direction.
대표청구항
▼
The present invention provides a process for fluid assisted injection molding comprising the step of providing an injection molding apparatus having a mold body that defines a mold cavity. The process further comprises the steps of supplying a quantity of fluent plastic to the mold cavity, followed
The present invention provides a process for fluid assisted injection molding comprising the step of providing an injection molding apparatus having a mold body that defines a mold cavity. The process further comprises the steps of supplying a quantity of fluent plastic to the mold cavity, followed by injecting a fluid into the mold cavity. The fluid forms an expanding fluid pocket in the mold cavity, driving plastic to the furthest recesses of the mold and ensuring a smooth surface finish of the final molded product. A reservoir is selectively connectable to a plastic injection runner, and can be opened to the runner to receive molten plastic ejected by the introduction of the fluid to the mold cavity. When the reservoir is thusly connected, the pressure of the fluid forces the plastic through a supply passage, in a direction substantially opposite to its initial injection direction. 4800122, 19890100, Sallavanti et al.; US-4842782, 19890600, Portney et al.; US-4851530, 19890700, Rickwood; US-4852974, 19890800, Melzig et al.; US-4879318, 19891100, Lipscomb et al.; US-4889664, 19891200, Kindt-Larsen et al.; US-4895102, 19900100, Rachel et al.; US-4902725, 19900200, Moore; US-4913544, 19900400, Rickwood et al.; US-4919850, 19900400, Blum et al.; US-4929278, 19900500, Ashley et al.; US-4939423, 19900700, Ruby; US-4955804, 19900900, Martell et al.; US-4959429, 19900900, Misura et al.; US-4965294, 19901000, Ohngemach et al.; US-4966812, 19901000, Ashley et al.; US-4968454, 19901100, Crano et al.; US-4983335, 19910100, Matsuo et al.; US-4985186, 19910100, Nose et al.; US-4988274, 19910100, Kenmochi; US-5015523, 19910500, Kawashima et al.; US-5028358, 19910700, Blum; US-5049321, 19910900, Galic; US-5061769, 19911000, Aharoni; US-5104692, 19920400, Belmares; US-5105126, 19920400, Girard, Jr.; US-5110514, 19920500, Soane; US-5116644, 19920500, Asai et al.; US-5118142, 19920600, Bish; US-5135686, 19920800, Masuhara et al.; US-5147585, 19920900, Blum; US-5153027, 19921000, Spagnoli; US-5154861, 19921000, McBrierty et al.; US-5173368, 19921200, Belmares; US-5178955, 19930100, Aharoni et al.; US-5219497, 19930600, Blum; US-5224957, 19930700, Gasser et al.; US-5225244, 19930700, Aharoni et al.; US-5238981, 19930800, Knowles; US-5268196, 19931200, Boulos; US-5274132, 19931200, VanGemert; US-5292457, 19940300, Arai et al.; US-5316791, 19940500, Farber et al.; US-5357024, 19941000, Leclaire; US-5364256, 19941100, Lipscomb et al.; US-5369158, 19941100, Knowles; US-5384077, 19950100, Knowles; US-5385955, 19950100, Tarshiani et al.; US-5391327, 19950200, Ligas et al.; US-5405958, 19950400, VanGemert; US-5411679, 19950500, Kumar; US-5412016, 1995
※ AI-Helper는 부적절한 답변을 할 수 있습니다.