|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||53/420 ; 53/471 ; 53/487 ; 53/488|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 5 인용 특허 : 47|
A container is provided in the form of a cup-like container body with a round mouth closed by a lid which becomes removably replaceable upon tearing away of a circumferentially extending tear strip which initially surrounds the mouth rim of the container body as a radially outer, integral part of the lid flange. As the lid is differential pressure-thermoformed, its radially outer region is formed into a generally inverted U-shaped structure which near the juncture of the base and radially outer leg of the inverted U, is provided, within the channel, with...
A method for making a tamper-evident lid for a container body having an upstanding peripheral sidewall providing a mouth defined at least in part by a rim having an outer portion which projects downwardly and terminates in a lower end, comprising: providing a sheet of thermoplastic resin; differential pressure-thermoforming a site on said sheet to provide a potential lid having a central disk-shaped portion perimetrically surrounded by an inverted U-shaped channel portion having a radially inner wall, a top wall and a radially outer wall; providing a cir...