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    • 12. 发明授权
    • Photographic medium cartridge with chemically activated status indicator
    • 具有化学活化状态指示剂的摄影介质盒
    • US5717972A
    • 1998-02-10
    • US774939
    • 1996-12-19
    • David L. PattonVirginia M. MoszkowiczWilliam G. HoytEdgar G. Earnhart
    • David L. PattonVirginia M. MoszkowiczWilliam G. HoytEdgar G. Earnhart
    • G03B17/30G03B17/26
    • G03B17/30G03B2217/263
    • A cartridge (10) of photographic medium includes a housing (14-24) having an interior volume (15); an exit slit (26) from the interior volume to an exterior of the housing; a photographic medium element (12) enclosed within the interior volume; an indicator (36-44) supported by one of the housing and the medium element, the indicator being responsive to a liquid reagent to change color and provide a visible indication of a status of the medium element; a source (46-52; 72-76; 90; 112) of the liquid reagent supported by the one of the housing and the medium element; and means (32, 34, 54-62; 778-86; 94-100; 22, 26, 28, 110) for causing flow of the reagent to the indicator upon movement of the medium element through the exit slit, whereby the indicator will change color and indicate the status. An indicator apparatus for mounting on a cartridge and a photographic medium supporting an indicator and source of reagent also are disclosed.
    • 照相介质的盒(10)包括具有内部容积(15)的壳体(14-24)。 从所述内部容积到所述壳体的外部的出口狭缝(26); 封闭在所述内部容积内的照相介质元件(12) 所述指示器(36-44)由所述外壳和所述介质元件之一支撑,所述指示器响应于液体试剂来改变颜色并提供所述介质元件的状态的可见指示; 由所述壳体和所述介质元件之一支撑的所述液体试剂的源(46-52; 72-76; 90; 112); 以及当所述介质元件通过所述出口狭缝移动时,用于使所述试剂流向所述指示器的装置(32,34,54-62; 778-86; 94-100; 22,26,28,110),由此所述指示器 将改变颜色并指示状态。 公开了一种用于安装在盒上的指示装置和支撑指示剂和试剂源的照相介质。
    • 14. 发明授权
    • Pulse generating mechanism for a web-roll
    • 卷筒纸的脉冲发生机构
    • US5003333A
    • 1991-03-26
    • US505963
    • 1990-04-09
    • Edgar G. Earnhart
    • Edgar G. Earnhart
    • G03B1/60G03C3/00
    • G03B1/60
    • A pulse generating mechanism, for a photosensitive web-roll mounted for rotation within a light-tight cartridge, comprises a flange on the web-roll; a plurality of activating means on the flange that are equally spaced angularly from each other and radially from the flange center; and sensing means disposed outside the cartridge for sensing movement of each activating means therepast, upon incremental rotation of the flange and web-roll, and for generating pulses in response to said sensing for monitoring quantity of web remaining on the web-roll. Each activating means preferably comprises a ferromagnetic or electrically conductive element on the flange, and the sensing means preferably comprises a transducer for sensing presence of that element. The element can be a ferromagnetic or electrically conductive disc affixed to the flange or spaced bosses on a flange made of ferromagnetic or electrically conductive material.
    • 用于安装在光密封筒内旋转的感光卷筒纸的脉冲产生机构包括卷筒纸上的凸缘; 所述凸缘上的多个激活装置,其彼此成角度地与所述凸缘中心成径向间隔开; 以及感测装置,其设置在所述盒的外部,用于在所述凸缘和卷筒纸卷的增量旋转时感测每个启动装置的运动,并响应于所述感测产生用于监测卷筒纸上剩余的卷材的量的脉冲。 每个激活装置优选地在凸缘上包括铁磁或导电元件,并且感测装置优选地包括用于感测该元件的存在的换能器。 元件可以是铁磁或导电盘,其固定到由铁磁性或导电材料制成的凸缘上的间隔开的凸起。