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    • 4. 发明申请
    • Adjustable Arc Cam
    • 可调圆弧凸轮
    • US20100071503A1
    • 2010-03-25
    • US12236101
    • 2008-09-23
    • John TobinJohn T. MizuloChristopher S. ShawAlbert W. Shaw
    • John TobinJohn T. MizuloChristopher S. ShawAlbert W. Shaw
    • F16H53/04
    • F16H53/04Y10T74/2102
    • The present invention is directed toward a cam assembly comprising a cam, a drive shaft and an adjustable screw. The cam includes a first side, a second side opposite the first side, an outer perimeter and a thickness between the first and second sides. The cam further has a first elongated bore through the first and second sides and the thickness of the cam, wherein the first elongated bore has a length radially oriented in the cam and a first end and a second end. The cam further has an elongated threaded hole extending from the outer perimeter to and being in communication with the first elongated bore. The drive shaft extends through the first elongated bore. The adjustment screw is within the elongated threaded hole and is engaged with the drive shaft, wherein the cam assembly is constructed and arranged such the drive shaft can be adjustably positioned and fixedly secured relative to the cam at a plurality of positions along the length of the first elongated bore.
    • 本发明涉及一种包括凸轮,驱动轴和可调螺钉的凸轮组件。 凸轮包括第一侧,与第一侧相对的第二侧,外周边和第一侧和第二侧之间的厚度。 凸轮还具有穿过第一和第二侧面的第一细长孔和凸轮的厚度,其中第一细长孔具有在凸轮中径向取向的长度,以及第一端和第二端。 凸轮还具有从外周边延伸到第一细长孔并且与第一细长孔连通的细长螺纹孔。 驱动轴延伸穿过第一细长孔。 调节螺钉在细长的螺纹孔内并与驱动轴接合,其中凸轮组件被构造和布置成使得驱动轴可以可调节地定位并相对于凸轮固定在沿着 第一细长孔。
    • 6. 发明授权
    • Breathing zone air sampler
    • 呼吸区空气取样器
    • US4858476A
    • 1989-08-22
    • US147823
    • 1988-01-25
    • John Tobin
    • John Tobin
    • G01N1/22G01N1/24G02C11/00
    • G01N1/2273G02C11/00G01N1/24G01N2001/2276
    • A sampling apparatus is provided which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.
    • 提供了一种采样装置,其包括用于对装置的佩戴者的呼吸区域中的空气进行采样的采样器和优选地以一对眼镜形式的采样器的支撑。 采样器包括支撑在眼镜框架上的采样组件,并包括一对样品输送管,其在使用中悬挂在框架的中央,以便布置在穿戴者的鼻子的相对侧上,并且每个包括 在其中的入口,其在使用中邻近佩戴者的鼻子的相应的鼻孔设置。 连接到样品输送管的过滤器支架支撑可移除的过滤器,用于过滤由装置取样的空气中的颗粒物质。 样品设备连接到泵,用于通过管入口将空气吸入设备中,使得空气通过过滤器。