专利名称：TAMPER EVIDENT CLOSURE AND METHOD
OF MANUFACTURE
发明人：THOMPSON, Mortimer, Stafford申请号：EP87900478.0申请日：19861205公开号：EP0254729A1公开日：19880203
摘要： A plug (10) showing any attempted violation, for a container (36) has a plasticrolled-up ring (16) at its lower end of reduced internal dimensions for engagement withthe underside with means for obstruction (43) provided on the container, the ring havinginduced stresses that enhance and reinforce its capture function. In addition, weakeninglines (17) are included in the form of a weakened circumferential line over the rolled-upring (16) or vertical lines of weakness in the rolled-up ring or both . When putting the cap,the rolled-up ring (16) is sufficiently resilient to pass around and under the obstructionmeans (43) of the container and to be in engagement with these means without breakingthe weakening lines (17 ). When removing the cap for the first time, the peripheralweakened line (17) breaks, leaving the ring on the container (36) or the vertical lines ofweakness will rupture and thus separate the ring segments while permitting removal ofthe entire plug. In both cases, it is clear that there has been attempted breach oropening the container.
申请人：TRI-TECH SYSTEMS INTERNATIONAL, INC.
地址：169 Autumn Road West Springfield Massachusetts 01089 US
国籍：US
代理机构：VOSSIUS & PARTNER
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