|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||264/572 ; 425/130|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 10 인용 특허 : 6|
A multiple limbed component is molded in a gas injection mold with a corresponding number of outlets. The outlets are regulated by valves that are operated sequentially to permit progressive expulsion of the excess material in the mold cavity.
[ I claim:] [1.] A method of injection molding an article in a mold cavity having an inlet and plurality of outlets comprising the steps of injecting moldable material into said cavity through the inlet, closing said inlet to inhibit movement of material therethrough, injecting gas under pressure into said cavity to expel a portion of said moldable material therefrom through said outlets, closing said outlets during injection of gas into said cavity to pressurize said cavity and opening said outlets, one at a different time than another to permit expulsi...