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公开(公告)号:US4872148A
公开(公告)日:1989-10-03
申请号:US587706
申请日:1984-03-08
申请人: John P. Kirby , Richard Paglia
发明人: John P. Kirby , Richard Paglia
摘要: An ultrasonic transducer assembly capable of being operated in a corrosive and/or abrasive environment that might otherwise degrade transducer performance and/or damage transducer related components. The assembly includes an ultrasonic transducer of the type having a vibratile diaphragm supported at its periphery by a support housing and having the diaphragm center portion spaced a predetermined distance from a protective perforated cover. A channel is provided in the transducer between opposite sides of the vibratile diaphragm to avoid temperature induced pressure differentials between gases (air) present in the space immediately adjacent opposite diaphragm surfaces. A plastic film is adhesively attached to the outer surface of this diaphragm-protecting cover and the entire transducer is enclosed within an outer housing. A flexible seal engages the plastic film and an outer housing surface. With this arrangement the outer housing interior is divided into two isolated spacial volumes with one volume being in direct communication with the atmosphere and with the other volume (formed by the outer housing, plastic film and flexible seal) forming a chamber that completely isolates the entire ultrasonic transducer from its operating environment. A tube couples the interior of the transducer containing chamber to a corrosive gas and foreign particle free environment at a remote protected location for the purpose of neutralizing any performance-degrading and/or protective film distorting pressure differentials between the two spacial volumes while avoiding direct contact between the transducer and/or related components and environmental components in the atmosphere potentially harmful to transducer performance, during such pressure neutralization.
摘要翻译: 超声波换能器组件能够在腐蚀性和/或磨蚀性环境中操作,否则会降低换能器性能和/或损坏换能器相关部件。 组件包括具有振动膜的类型的超声波换能器,振动膜在其周边由支撑壳体支撑并且具有与保护穿孔盖隔开预定距离的隔膜中心部分。 在振动器的相对侧之间的传感器中设置有通道,以避免存在于紧邻相对的隔膜表面的空间中的气体(空气)之间的温度感应压力差。 塑料膜粘附在该隔膜保护罩的外表面上,整个换能器封闭在外壳内。 柔性密封件接合塑料膜和外壳表面。 通过这种布置,外部壳体内部被分成两个独立的空间体积,一个体积与大气直接连通,另一个体积(由外部壳体,塑料薄膜和柔性密封件形成)形成一个完全隔离整个空间的腔室 超声波传感器从其操作环境。 一个管将换能器容纳室的内部连接到一个腐蚀性气体,并且在远离受保护的位置处于无异物环境的环境中,用于中和两个空间体积之间任何降低性能和/或保护膜的失真压差,同时避免直接接触 在这种压力中和期间,在换能器和/或相关部件和大气中可能对传感器性能有害的环境部件之间。
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公开(公告)号:US5950020A
公开(公告)日:1999-09-07
申请号:US8644
申请日:1998-01-16
申请人: Alan D. Ball , Peter P. Clark , John P. Kirby , Paul F. Neely , Jason D. Silver , George D. Whiteside
发明人: Alan D. Ball , Peter P. Clark , John P. Kirby , Paul F. Neely , Jason D. Silver , George D. Whiteside
CPC分类号: G03B17/52
摘要: A multiple focal length folding imaging device includes a first and second housing which are operably joined together for movement relative to one another so that the second housing is movable relative to the first housing between at least a first position and a second position. The first housing is formed to at least partially receive therein the second housing, such that when the second housing is in the first position, the second housing is at least partially received within the first housing. The second housing includes an exiting aperture for allowing exiting of at least one image recordable unit therefrom when in the second position, and when the second housing is in the first position, the exiting aperture is at least partially disposed within the first housing so that the at least one image recordable unit cannot exit from the exiting aperture. Furthermore, the imaging device includes a lens movement mechanism for transferring linear motion to rotational motion so that different lens systems can be readily moved into the optical path of the imaging device.
摘要翻译: 多重焦距折叠成像装置包括第一和第二壳体,其可操作地连接在一起以相对于彼此运动,使得第二壳体可在至少第一位置和第二位置之间相对于第一壳体移动。 第一壳体形成为至少部分地容纳第二壳体,使得当第二壳体处于第一位置时,第二壳体至少部分地容纳在第一壳体内。 第二壳体包括出口孔,用于当处于第二位置时允许从其中排出至少一个图像可记录单元,并且当第二壳体处于第一位置时,出口孔至少部分地设置在第一壳体内,使得 至少一个图像可记录单元不能从出射孔径退出。 此外,成像装置包括用于将线性运动转移到旋转运动的透镜移动机构,使得不同的透镜系统可以容易地移动到成像装置的光路中。
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公开(公告)号:US6055375A
公开(公告)日:2000-04-25
申请号:US018375
申请日:1998-02-04
CPC分类号: G03B17/50
摘要: A photographic apparatus for use with self-developing film wherein the apparatus comprises a light-tight housing assembly having a film unit exit for allowing the film units to exit the housing assembly; an exposure control assembly including a shutter button; the exposure control assembly includes a biased carriage assembly movable between ambient, strobe and strobe charge positions in response to manual displacement thereof; a spread roller assembly including spread rollers for spreading the processing fluid in the film units; a manually operable drive mechanism is mounted in the housing assembly for bidirectional linear movement between extended and retracted positions and carries a pick for engaging and advancing a topmost film unit of the film stack into the nip, and for rotatably driving the spread roller member in response to pulling of the drive mechanism by an operator to process the film unit and eject the same from the exit; and, an interlocking assembly cooperates with the shutter button and the drive mechanism to prevent the drive mechanism from moving until the shutter button is actuated, and preventing the drive mechanism from being reinserted into the housing assembly until the drive mechanism has been pulled sufficiently so that a film unit has been processed by the spread roller member and exits the housing assembly.
摘要翻译: 一种用于自显影胶片的摄影装置,其中该装置包括一个具有胶片单元出口的防光外壳组件,该胶片单元出口允许胶片单元离开外壳组件; 包括快门按钮的曝光控制组件; 曝光控制组件包括偏置的滑架组件,其可响应于其手动位移而在环境,闪光灯和闪光灯充电位置之间移动; 扩展辊组件,包括用于将处理流体分散在胶片单元中的展开辊; 手动可操作的驱动机构安装在壳体组件中,用于在延伸位置和缩回位置之间进行双向线性运动,并且携带用于接合和推进胶片堆叠的最上面的胶片单元进入辊隙的拾取器,并且响应于可旋转地驱动展开辊构件 由操作者拉动驱动机构以处理胶片单元并将其从出口喷出; 并且,互锁组件与快门按钮和驱动机构配合以防止驱动机构移动直到快门按钮被致动,并且防止驱动机构重新插入到壳体组件中,直到驱动机构被充分拉出,使得 胶片单元已被展开辊构件处理并离开壳体组件。
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