|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||72/325 ; 30/446|
|발명자 / 주소|
|인용정보||피인용 횟수 : 1 인용 특허 : 0|
Method and apparatus for the clearing of liquids retained in recesses, for example, in the lid holding groove at the rim of a paint can, by using a tool to perforate the base of the groove and allow the paint residue retained in the groove after pouring to drain into the can when it is uprighted.
A tool for preventing flowable material from becombing entrapped in the recessed circular rim of a container which comprises a circular band having the diameter of the recessed rim, and a plurality of triangular profile teeth on one edge of said band for forming apertures in said recessed rim successive ones of said teeth being of successively varying heights to facilitate the formation of said apertures in said recessed rim.