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1. 发明授权

US5694629A Film transport mechanism with torque limiting clutch 失效
标题翻译：带扭矩限制离合器的胶片输送机构
公开(公告)号：US5694629A
公开(公告)日：1997-12-02
申请号：US432614
申请日：1995-05-01
申请人： Stanley Ward Stephenson, III , Tom Michael Seamans
发明人： Stanley Ward Stephenson, III , Tom Michael Seamans
IPC分类号： G03B17/00 , B65H18/12 , B65H23/195 , G03B1/00
CPC分类号： G03B1/00
摘要： A camera film transport mechanism includes a torque limiting one-way drive clutch for preventing film damaging excessive torque loading or reverse rotation of the drive. The clutch includes coaxial inner and outer members. A resilient arm extends generally tangentially from one of the members with a free end biased against the other member and engagable with a tooth or abutment thereon to transmit torque therebetween. A sloping surface on one or both of the tooth and the arm end limits torque transmission by camming the arm out of engagement when the friction force is overcome. Multiple arms and/or abutment teeth may be provided and the arms may be arranged for either compressive or tensile loading. Slip torque deviation is limited by making the engaging surfaces from diverse materials, for example, an amorphous polymer, such as polycarbonate styrene, for one surface and a semi-crystalline polymer, such as nylon or acetal, for the other.
摘要翻译：相机胶片传送机构包括扭矩限制单向驱动离合器，用于防止膜损坏驱动器的过大的扭矩负载或反向旋转。离合器包括同轴的内部和外部构件。弹性臂大体上切向地从一个构件延伸，自由端偏压抵靠另一个构件，并且与其上的齿或邻接件可接合以在其间传递扭矩。齿和臂端部中的一个或两个上的倾斜表面通过在克服摩擦力时使臂伸出接合而限制扭矩传递。可以提供多个臂和/或邻接齿，并且臂可以布置成用于压缩或拉伸负载。通过使不同材料的接合表面（例如，诸如聚碳酸酯苯乙烯的无定形聚合物）和用于一个表面的半结晶聚合物（例如尼龙或缩醛）用于另一种材料来限制滑动扭矩偏差。

2. 发明授权

US5666575A Cartridge status indicator 失效
标题翻译：墨盒状态指示灯
公开(公告)号：US5666575A
公开(公告)日：1997-09-09
申请号：US608426
申请日：1996-02-28
申请人： Stanley Ward Stephenson, III , Tom Michael Seamans
发明人： Stanley Ward Stephenson, III , Tom Michael Seamans
IPC分类号： G03B17/02 , G03B17/18 , G03B17/36 , G03B17/26
CPC分类号： G03B17/02 , G03B17/18 , G03B2217/268
摘要： A camera includes a chamber for containing a film cartridge having a rotatable film spool with external engagement access to allow rotation of the spool. The chamber is closed by a lighttight door having a cavity including a status indicator member for determining the status of a contained film cartridge. The status indicator member is attached a cartridge engagement member which is rotatable with the cartridge film spool. The status indicator member includes a display disk for indicating the status of said cartridge based on the rotational position of said spool which is visible through an opening in the chamber door.
摘要翻译：照相机包括用于容纳具有可旋转薄膜卷轴的胶片暗盒的室，其具有外部接合进入，以允许卷轴旋转。该室由具有空腔的不透光门封闭，该腔体包括用于确定容纳的暗盒的状态的状态指示器构件。状态指示器构件附接有可与盒式胶片卷轴旋转的盒式接合构件。状态指示器构件包括显示盘，用于基于通过室门中的开口可见的所述卷轴的旋转位置来指示所述盒的状态。

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