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1. 发明授权

US4385462A Illuminated transparency viewing system with overlay device and film clips 失效
标题翻译：带遮盖装置和胶片夹的照明透明度观察系统
公开(公告)号：US4385462A
公开(公告)日：1983-05-31
申请号：US63951
申请日：1979-08-06
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G02B27/02 , G09F1/10 , A47B19/00
CPC分类号： G02B27/024 , G09F1/10
摘要： A transparency viewing system employs an illuminated viewer adapted to be used with an overlay device and/or film retaining clips. Brackets are provided to define longitudinal open channels at opposite edges of the illuminated viewing surface. The overlay device is of a size to span the viewing surface such that the marginal edges thereof, which have a configuration similar to that of the open channels, may be inserted into the open channels so that the overlay device is held against the viewing surface. Each retaining clip includes a mounting portion having a configuration similar to that of the channels and may be adjustably positioned along the channels so that its operating portion is biased against the viewing surface to hold transparencies placed between the clip and the viewing surface in position. The brackets are secured to the housing at respective opposite edges to fix the viewing surface in place at the upper edge thereof and has a depending portion extending inwardly from the edges of the viewing surface to overlie the viewing surface so that the channel side walls are defined by the viewing surface and the bracket depending portion.
摘要翻译：透明度观察系统采用适合与覆盖装置和/或胶片固定夹一起使用的照明观察器。提供支架以在照明观察表面的相对边缘处限定纵向开口通道。覆盖装置具有跨越观察表面的尺寸，使得其具有与开放通道类似的构造的边缘可以插入开放通道中，使得覆盖装置保持抵靠观察表面。每个固定夹包括具有类似于通道的构造的安装部分，并且可以沿着通道可调节地定位，使得其操作部分偏压在观察表面上，以将放置在夹子和观察表面之间的投影胶片保持就位。支架在相应的相对边缘处固定到壳体，以将观察表面固定在其上边缘处的适当位置，并且具有从观察表面的边缘向内延伸以覆盖观察表面的悬垂部分，使得通道侧壁被限定通过观察表面和支架悬垂部分。

2. 发明授权

US4206559A Supporting leg assembly for an illuminated transparency viewer 失效
标题翻译：用于照明透明度观察器的支撑腿组件
公开(公告)号：US4206559A
公开(公告)日：1980-06-10
申请号：US868983
申请日：1978-01-12
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G02B27/02
CPC分类号： G02B27/024
摘要： An illuminated transparency viewing device is supported by a leg construction which may be adjusted to orient the viewer at different angles relative to a supporting surface. Two pairs of spaced apart legs are provided, each leg being pivotally mounted to the viewer housing for movement between retracted and extended positions so that either pair may be retracted or extended to tilt the viewer on edge. Each pair of legs may be of different length than that of the other pair. One leg of each pair is colinearly arranged with a corresponding leg of the other pair to define a pair of leg assemblies. Each leg assembly therefore has a pair of legs, each being mounted for pivotal movement between the side walls of a U-shaped bracket secured to the bottom of the viewer housing and may be extended from or retracted into the bracket.
摘要翻译：照明的透明度观察装置由腿部结构支撑，腿部结构可以被调整以相对于支撑表面以不同的角度定向观察者。提供了两对间隔开的腿，每个腿可枢转地安装到观察者壳体上，用于在缩回位置和伸展位置之间移动，使得任一对可以缩回或延伸以使观看者倾斜边缘。每对腿可以具有与另一对不同的长度。每对的一条腿与另一对的相应腿共线布置以限定一对腿组件。因此，每个腿组件具有一对腿，每个腿部被安装用于在固定到观察者壳体的底部的U形支架的侧壁之间枢转运动，并且可以从支架延伸或缩回到支架中。

3. 发明授权

US4060310A Detachable modular drive unit for projection screen apparatus 失效
标题翻译：用于投影屏幕设备的可拆卸模块化驱动单元
公开(公告)号：US4060310A
公开(公告)日：1977-11-29
申请号：US646922
申请日：1976-01-06
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G03B21/58 , G03B21/56 , E06B9/20
CPC分类号： G03B21/58
摘要： A projection screen apparatus includes a modular screen unit and a separate modular drive motor unit generally forming an extension of the screen unit. The screen unit has an elongate roller and a flexible screen which is wound on the roller when it is in a closed position and unwound from the roller when it is in an exposed position. The drive unit is detachably secured adjacent the screen unit and has an electric motor releasably coupled to the roller to rotate the roller to move the screen between exposed and closed positions.
摘要翻译：投影屏幕装置包括模块化屏幕单元和通常形成屏幕单元的延伸部的单独的模块化驱动马达单元。屏幕单元具有细长的辊和柔性屏幕，当其处于关闭位置时，其被卷绕在辊上并且当其处于暴露位置时从辊退绕。驱动单元可拆卸地固定在屏幕单元附近，并且具有可释放地联接到辊的电动马达以旋转滚轮以在曝光位置和闭合位置之间移动屏幕。

4. 发明授权

US4213260A Overlay device for use with an illuminated transparency viewer 失效
标题翻译：用于照明透明度查看器的叠加设备
公开(公告)号：US4213260A
公开(公告)日：1980-07-22
申请号：US868982
申请日：1978-01-12
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G03B21/64 , G09F1/10
CPC分类号： G03B21/64 , G09F1/10
摘要： An overlay device, which is adapted for use with an illuminated transparency viewer, for holding slides and the like includes a series of spaced apart elongate members, frame members transverse to the elongate members to maintain the elongate members in fixed position, and resilient material carried by at least one of the elongate members such that a slide may be inserted between two successive elongate members by depressing said resilient material to insert one edge of the slide therein with the opposite edge being urged against the opposite elongate member to hold the slide in position. The elongate members have channels into which the slides may be inserted, the resilient material being disposed in at least one of the channels.
摘要翻译：适于与照明透明度观察器一起使用的用于保持滑动件等的覆盖装置包括一系列间隔开的细长构件，横向于细长构件的框架构件以将细长构件保持在固定位置，并且承载弹性材料通过至少一个细长构件使得滑动件可以通过按压所述弹性材料以将滑动件的一个边缘插入其中而插入在两个相继的细长构件之间，其中相对的边缘被推靠在相对的细长构件上以将滑块保持在适当位置。细长构件具有可以插入滑块的通道，弹性材料设置在至少一个通道中。

5. 发明授权

US4207979A Tray for sorting and storing photographic transparency slides 失效
标题翻译：用于分类和存储摄影透明幻灯片的托盘
公开(公告)号：US4207979A
公开(公告)日：1980-06-17
申请号：US944772
申请日：1978-09-21
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G03B21/64 , B65D21/02 , B65D1/36 , B65D85/62
CPC分类号： G03B21/64 , Y10S206/804
摘要： An overlay tray for holding a plurality of photographic slides in side-by-side relationship is integrally formed from transparent plastic and defines a series of parallel, longitudinal channels. Each channel has a longitudinal groove adjacent one channel wall so that pressure applied to the edge of the slide above the groove pivots the opposite edge of the slide outward from the channel. The walls of the overlay tray are constructed so that the trays may be stacked one upon the other in interfitting relationship with the bottom of one tray retaining the slides in fixed position within the tray below. A flange extends from one end of the overlay tray so that an identifying label placed thereon can be read through a stack of such trays.
摘要翻译：用于以并排关系保持多个摄影幻灯片的覆盖托盘由透明塑料一体地形成并且限定一系列平行的纵向通道。每个通道具有相邻于一个通道壁的纵向凹槽，使得施加到滑槽上方的滑块的边缘的压力将滑动件的相对边缘从通道向外枢转。覆盖托盘的壁被构造成使得托盘可以彼此重叠地堆叠在一个托盘的底部的相互关系中，托盘将托架保持在托盘下方的固定位置。凸缘从覆盖托盘的一端延伸，使得放置在其上的识别标签可以通过这种托盘的堆叠来读取。

6. 发明授权

US4059339A Brake mechanism for motor driven projection screen 失效
标题翻译：电机驱动投影屏制动机构
公开(公告)号：US4059339A
公开(公告)日：1977-11-22
申请号：US647578
申请日：1976-01-08
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G03B21/58 , G03B21/56 , H02K7/10
CPC分类号： G03B21/58
摘要： A brake mechanism for an electric motor used to drive a projection screen apparatus. The brake mechanism includes a first brake surface fixed to an exterior brake support about an end of the motor shaft projecting from the housing, a second brake surface adjustable on the shaft end and confronting the first brake surface, and a spring for normally urging the brake surfaces into engagement to prevent rotation of the shaft, and brake surfaces being urged apart and the action of the spring counteracted when the motor is operated as the rotor of the motor, which is carried by the shaft, aligns itself with the magnetic field generated by the stator of the motor.
摘要翻译：一种用于驱动投影屏幕装置的电动机的制动机构。所述制动机构包括第一制动器表面，所述第一制动器表面围绕从所述壳体突出的所述电动机轴的端部固定到外部制动器支撑件，在所述轴端可调节并面对所述第一制动器表面的第二制动器表面，以及用于正常地推动所述制动器的弹簧表面接合以防止轴的旋转，并且制动表面被推开并且当电动机作为由轴承载的电动机的转子而被操作时弹簧的作用抵消了自身与由电机的定子。

7. 发明授权

US4045123A Control device to position projection screen for viewing 失效
标题翻译：控制设备定位投影屏幕进行查看
公开(公告)号：US4045123A
公开(公告)日：1977-08-30
申请号：US647869
申请日：1976-01-09
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G03B21/58 , G03B21/56
CPC分类号： G03B21/58
摘要： A projection screen apparatus includes an elongate roller, a flexible screen which is wound on the roller when it is in a closed position and unwound from the roller when it is in an exposed position, an electric drive motor connected to the roller for rotating the roller to move the screen between exposed and closed positions, a first switch for actuating the drive motor to move the screen toward an exposed position, and a second switch for stopping the drive motor and the roller when the screen is in a fully exposed position. A lever urged against the screen wound on the roller moves the second switch to an inoperative position when a predetermined amount of screen is unwound from the roller to interrupt the electric circuit leading to the drive motor.
摘要翻译：投影屏幕装置包括细长的滚筒，柔性屏幕，当它处于关闭位置时被卷绕在滚筒上并且当它处于暴露位置时从滚筒展开;连接到滚轮的电动驱动马达用于旋转滚筒将屏幕在曝光位置和关闭位置之间移动，用于致动驱动电机以使屏幕朝向暴露位置移动的第一开关，以及当屏幕处于完全暴露位置时停止驱动电动机和辊的第二开关。当从滚筒展开预定量的屏幕以中断通向驱动马达的电路时，被推靠在卷轴上的屏幕上的杠杆使第二开关移动到不工作位置。

8. 发明授权

US4152852A Transparency viewer assembly 失效
标题翻译：透明度查看器组件
公开(公告)号：US4152852A
公开(公告)日：1979-05-08
申请号：US868984
申请日：1978-01-12
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G02B27/02
CPC分类号： G02B27/024
摘要： A pair of illuminated transparency viewers may be mounted on a supporting frame assembly so that one viewer generally provides a horizontally oriented viewing surface and the other viewer generally provides a vertically oriented viewing surface. The frame assembly includes a base portion adapted to receive the legs of one of the viewers and an upright portion adapted to receive the legs of the other viewer. The base portion and the upright portion each have a U-shaped cross section to define an open channel into which the respective legs of the viewers are inserted and secured by appropriate means. Two frame assemblies are utilized to mount the viewers which have two leg assemblies, each of which, in turn, has a leg pivotally mounted for movement between retracted and extended positions.
摘要翻译：一对照明的透明度观察器可以安装在支撑框架组件上，使得一个观察者通常提供水平定向的观察表面，而另一个观察者通常提供垂直定向的观察表面。框架组件包括适于接纳观看者中的一个的腿的基部和适于接收另一观看者的腿的直立部分。基部和直立部分各自具有U形横截面以限定开放通道，观察者的相应腿部通过适当的装置插入并固定到该通道中。使用两个框架组件来安装具有两个腿组件的观察者，每个腿组件又具有枢转地安装用于在缩回位置和伸展位置之间移动的腿部。

9. 发明授权

US4072404A Control mechanism for positioning projection screen in closed position 失效
标题翻译：定位投影屏幕处于关闭位置的控制机构
公开(公告)号：US4072404A
公开(公告)日：1978-02-07
申请号：US647870
申请日：1976-01-09
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： G03B21/58 , G03B21/56 , A47G5/02 , A47H1/00
CPC分类号： G03B21/58
摘要： A projection screen apparatus includes an elongate roller, a flexible screen which is wound on the roller when it is in a closed position and unwound from the roller when it is in an exposed position, an electric drive motor connected to the roller for rotating the roller to move the screen between exposed and closed positions, a first switch for actuating the drive motor to move the screen toward a closed position, and a second switch for stopping the drive motor and the roller when the screen is in a fully closed position. A free marginal end portion of the screen engages a lever which moves the second switch to an inoperative position to interrupt the electric circuit leading to the drive motor.
摘要翻译：投影屏幕装置包括细长的滚筒，柔性屏幕，当它处于关闭位置时被卷绕在滚筒上并且当它处于暴露位置时从滚筒展开;连接到滚轮的电动驱动马达用于旋转滚筒将屏幕在曝光和关闭位置之间移动，用于致动驱动电动机以使屏幕朝向关闭位置移动的第一开关，以及当屏幕处于完全关闭位置时用于停止驱动电动机和辊的第二开关。屏幕的自由边缘端部与将第二开关移动到不工作位置的杠杆接合以中断通向驱动马达的电路。

10. 发明授权

US4300318A Cabinet for use in abrasive blasting system 失效
标题翻译：用于喷砂系统的机柜
公开(公告)号：US4300318A
公开(公告)日：1981-11-17
申请号：US116011
申请日：1980-01-28
申请人： Donald J. Brown
发明人： Donald J. Brown
IPC分类号： B24C3/02 , B24C3/04 , B24C9/00
CPC分类号： B24C3/02
摘要： A cabinet device is provided for use in combination with an abrasive blasting system. The inner chamber of the cabinet device is maintained at a pressure of less than ambient air pressure during an abrading operation by applying a source of vacuum to an exhaust outlet in the bottom of the cabinet below the article being abraded which is supported on a rack in the chamber. A blasting gun in the chamber is manipulated from outside the cabinet by an operator. An inlet for ambient air is located in the cabinet above the article on the rack and, during an abrading operation, establishes a continuous current of air downwardly toward the cabinet exhaust outlet to clear the space in the cabinet above the rack of view-obscuring debris and dust caused by the blasting operation. An improved sealing device between the cabinet cover and the peripheral sidewall of the cabinet housing is also provided.
摘要翻译：提供了与喷砂系统组合使用的柜装置。机柜装置的内腔在研磨操作期间保持在小于环境空气压力的压力下，通过将真空源施加到机架底部的排气出口下方，被磨损的物品被支撑在机架上房间。操作员从机柜外面操纵了室内的喷枪。用于环境空气的入口位于机架上的物品上方的机柜中，并且在研磨操作期间，向室内排气口向下建立连续的空气流，以清除机柜上方的视野模糊碎片之上的空间和由爆破作业引起的灰尘。还提供了机柜盖和机壳外壳的外围侧壁之间的改进的密封装置。

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