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특허 상세정보

Method for adding strength to a container

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B65D-045/00   
미국특허분류(USC) 220/675 ; 220/623 ; 220/908
출원번호 US-0823211 (1997-03-24)
발명자 / 주소
출원인 / 주소
대리인 / 주소
인용정보 피인용 횟수 : 11  인용 특허 : 66

An improved method of blow molding a hollow article is disclosed comprising the adaptation of a die pin (26) to include spaced apart channels (38) therein that extend from top to bottom along the sides of the die pin. The channels create reinforcement ribs (70) along the inside surface (68) of a formed parison (30). The ribs expand with the parison into a final form and serve to reinforce the resultant body while being visible only from the inside. The channels (38) are each bifurcated to provide a segment (44) below a shut-off surface (46) in which plas...


[ I claim:] [1.] A molded hollow container comprising:a concave bottom panel and side panels that extend from the bottom panel to an upper rim and define an internal chamber therebetween;spaced apart and inwardly directed reinforcement ribs integrally formed with and projecting from inward surfaces of the bottom and side panels into the chamber,the ribs extend continuously downward from upper ends along the inward surfaces of the side panels and continuously converge in spaced apart relationship therefrom along the inward concave surface of the bottom pa...

이 특허에 인용된 특허 (66)

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