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1. 发明授权

US6044695A Apparatus and method for detecting contaminants on the surface of a card 失效
标题翻译：用于检测卡表面污染物的装置和方法
公开(公告)号：US6044695A
公开(公告)日：2000-04-04
申请号：US922686
申请日：1997-09-02
申请人： Gary L. Pearson , Grant Wurdell , Timothy P. Courteau
发明人： Gary L. Pearson , Grant Wurdell , Timothy P. Courteau
IPC分类号： G01B5/28 , G06K1/12 , B41F33/00
CPC分类号： G01B5/28 , G06K1/12
摘要： An apparatus and method for detecting potentially damaging contaminants on the surfaces of a plastic card, such as a credit card, an identification card, and the like, prior to a thermal printing operation being performed on the card. The apparatus includes a roller assembly including a first, driven, rotatable roller and a second, floating, rotatable roller parallel to the first roller. The card is directed between the first and second rollers so that the first roller is engageable with one side surface of the card and the second roller is engageable with the opposite side surface of the card. The second roller is supported in a manner to permit the second roller to pivot about a fixed axis when either one of the first and second rollers encounters a contaminant on one of the side surfaces of the card. An encoder is linked to the second roller for collecting data on the movement of the second roller as the card travels between the first and second rollers.
摘要翻译：在对卡片进行热敏印刷操作之前，用于检测诸如信用卡，识别卡等塑料卡表面上的潜在的有害污染物的装置和方法。该装置包括一个滚子组件，其包括平行于第一滚筒的第一驱动旋转辊和第二浮动可旋转辊。卡被引导在第一和第二辊之间，使得第一辊可与卡的一个侧表面接合，并且第二辊可与卡的相对侧表面接合。当第一辊和第二辊中的任何一个在卡的一个侧表面上遇到污染物时，第二辊被支撑为允许第二辊绕固定轴线枢转。编码器连接到第二辊，用于当卡在第一和第二辊之间行进时收集关于第二辊的运动的数据。

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