|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||215/375; 215/373; 220/606; 220/609|
|§371/§102 date||20030923 (20030923)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 59 인용 특허 : 6|
A thermoplastic container obtained by blow-molding of a preform, with a base including in its central part a multiple-branch cross-shaped impression provided with a central recess from which radial branches radiate; the base is of the petal-shaped type with at least three legs formed by protuberances located near the periphery; there are as many legs as branches mutually aligned radially; each leg includes a notch for absorbing stresses radially separated from the end of the respective branch.
The invention claimed is: 1. A thermoplastic container obtained by blow-molding or stretch-blow-molding of a preform, this container comprising a side wall and a bottom connected to this side wall, said bottom comprising, in its central region, an impression in the shape of a multi-branch cross impressed into the outer face of the bottom, this cross-shaped impression having a roughly circular central cup around which uniformly-spaced radially-extending branches radiate, wherein said bottom is of the petaloid type, with the bottom having a shape generall...