|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||215/373 ; 425/525|
|§371/§102 date||19960828 (19960828)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 99 인용 특허 : 0|
A molded plastics bottle including a bottom having improved strength and stability, the bottom comprising a concave central portion (26) which connects via a plane annular surface (28) with a convex peripheral surface (30) for standing on a support surface (32), radial grooves (38) being formed in said convex annular surface (30) and connecting tangentially with the plane annular surface (28).
[ We claim:] [1.] A molded plastics bottle, comprising a neck designed to receive a top, a substantially cylindrical side wall, and a bottom formed with a concave portion and a convex peripheral surface which includes radial grooves and which connects with the concave central portion of the bottom via a substantially plane annular surface, the bottle being characterized in that the bottom of each radial groove connects substantially tangentially with said plane annular surface. [15.] A mold for making a bottle of plastic material, the mold comprising a b...