|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||303/66 ; 300/445 ; 803/030|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 0|
An apparatus provides drain passages in an annular channel in the lip of a metal container for fluids. A metal or plastic support is shaped as an annular ring. Each punch of a plurality of metal punches has a corresponding base and point. The base of each punch is integrally connected to a front face of the support such that each point projects perpendicularly to the front face and in a common direction parallel to an axis of the annular ring. The punches are spaced so that each point can be aligned simultaneously with the annular channel of the metal ca...
[ I claim:] [1.]1. A method for providing fluid drain passages in an annular channel of a metal can, the metal can being resealable with a removable lid that engages the annular channel of the metal can, the steps comprising:a. aligning a support with the metal can, the support defining a plane and having:a central axis perpendicular to the plane,a face perpendicular to the central axis and parallel to the plane,a plurality of punches, each punch having a corresponding base and point, wherein the base of each punch is integrally connected to the face suc...