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61. 发明授权

US5206800A Zero voltage switching power converter with secondary side regulation 失效
标题翻译：零电压开关电源转换器具有次级侧调节
公开(公告)号：US5206800A
公开(公告)日：1993-04-27
申请号：US892226
申请日：1992-06-02
申请人： David A. Smith
发明人： David A. Smith
IPC分类号： H02M3/335
CPC分类号： H02M3/33576
摘要： A circuit for utilizing the magnetizing current in the transformer of a converter to reset the transformer's core and to provide a zero-voltage-switching condition on the converter's primary switch and to regulate the output voltage is disclosed. The power converter includes a transformer having a primary winding and a secondary winding, the secondary winding being coupled to an output load and a primary switch connected in series between the primary winding and a voltage source. The closing of the primary switch causes energy to be stored in the transformer and the opening of the primary switch causes the energy to be released from the transformer. The utilization circuit includes a series combination of a storage capacitor and a first switch coupled in parallel with one of the transformer's windings to capture the energy released from the transformer. The captured energy is used to reset the transformer's core and to create a zero voltage switching condition across the primary switch. A second switch means is connected in series with the secondary winding of the transformer and is operated to prevent the loading effects of the secondary from interrupting the creation of the zero-voltage switching condition. A secondary side regulation circuit is included to both regulate the output voltage and to prevent the loading effects of the secondary circuit from interfering with zero-voltage switching in the primary circuit.
摘要翻译：公开了一种利用转换器的变压器中的磁化电流来复位变压器的磁芯并在转换器的主开关上提供零电压开关状态并调节输出电压的电路。功率转换器包括具有初级绕组和次级绕组的变压器，次级绕组耦合到输出负载和串联连接在初级绕组和电压源之间的初级开关。主开关的关闭使得能量被存储在变压器中，并且主开关的断开导致能量从变压器释放。利用电路包括存储电容器和与变压器绕组之一并联耦合的第一开关的串联组合，以捕获从变压器释放的能量。捕获的能量用于复位变压器的内核并在主开关之间产生零电压开关条件。第二开关装置与变压器的次级绕组串联连接，并且被操作以防止二次管的负载效应中断零电压开关条件的产生。包括二次侧调节电路以调节输出电压并防止二次电路的负载效应干扰初级电路中的零电压开关。

62. 发明授权

US4977493A Efficient snubber for rectifier circuits 失效
标题翻译：整流电路的高效缓冲器
公开(公告)号：US4977493A
公开(公告)日：1990-12-11
申请号：US379380
申请日：1989-07-13
申请人： David A. Smith
发明人： David A. Smith
IPC分类号： H02M1/34 , H02M3/155 , H03K17/0814
CPC分类号： H02M1/34 , H02M3/155 , H03K17/08142 , H02M2001/346 , Y02B70/1491
摘要： A rectifier circuit having a rectifier (D4) allowing current to flow in a forward direction to an output (V.sub.OUT). A saturable inductor (L3) in series with the rectifier (D4) blocks reverse recovery rectifier current and directs it to an inductor (L4), the energy stored in that inductor re-setting the saturable inductor (L3) to allow subsequent flow of current in the forward direction to the rectifier (D4). A capacitor (C2) absorbs surplus energy from the inductor (L4) and a rectifier (D5) guides that surplus energy to the output (V.sub.OUT). This rectifier circuit is particularly useful as part of a convertor where an electronic switch repeatedly switches current through an inductor (L1) and the energy from the inductor (L1) is delivered to the output (V.sub.OUT) via the rectifier circuit.

63. 发明授权

US4588070A Bag transfer device 失效
标题翻译：袋传送装置
公开(公告)号：US4588070A
公开(公告)日：1986-05-13
申请号：US670515
申请日：1984-11-13
申请人： David A. Smith
发明人： David A. Smith
IPC分类号： B65G47/90 , B65H31/30 , B65G47/22
CPC分类号： B65H31/3045 , B65G47/90 , B65H2301/42242
摘要： Apparatus for clamping and transferring to another location stacks of bags or other products of varying sizes. The apparatus preferably includes sets of clamping jaws for grasping the stacks of bags. The jaws are designed for movement in more than one direction in substantially the same plane so that mechanisms for delivering and receiving bags can be used even if the bags from one stack vary in size from that in the next stack. Each set of clamping jaws supports as well as clamps each stack of bags, a lower support jaw being extended to a sufficient length to provide such support. The device can also accommodate bags or other products of varying wall thicknesses.
摘要翻译：用于夹紧和转移到不同尺寸的袋或其他产品的另一位置的装置。该装置优选地包括用于抓握袋子堆叠的一组夹爪。钳口设计用于在基本上相同的平面中在多于一个方向上运动，使得即使来自一个堆叠的袋子的尺寸与下一个堆叠中的袋子尺寸不同，也可以使用用于递送和接收袋子的机构。每组夹爪支撑并夹紧每一叠袋，下支撑爪延伸到足够的长度以提供这种支撑。该设备还可以容纳不同壁厚的袋子或其他产品。

64. 发明授权

US4475867A Axial fan and noise abatement apparatus combination 失效
标题翻译：轴流风扇和噪音消除装置组合
公开(公告)号：US4475867A
公开(公告)日：1984-10-09
申请号：US456545
申请日：1983-01-10
申请人： David A. Smith
发明人： David A. Smith
IPC分类号： F04D29/66
CPC分类号： F04D29/665
摘要： An axial fan having a central fan structure from which a plurality of blades extend radially and a center body extending axially from said central fan structure. The center body occupies a volume in which turbulence would otherwise occur. At least one side branch resonator is disposed within the center body to attenuate resonance produced by said fan in a particular frequency band.
摘要翻译：一种具有中心风扇结构的轴流风扇，多个叶片由该风扇结构径向延伸，中心体从中心风扇结构轴向延伸。中心体占据其中会发生湍流的体积。至少一个侧分支谐振器设置在中心体内以衰减在特定频带中由所述风扇产生的共振。

65. 发明授权

US4304879A Non-crystallizing acrylated polyesters based on isophthalic acid 失效
标题翻译：基于间苯二甲酸的非结晶丙烯酸酯化聚酯
公开(公告)号：US4304879A
公开(公告)日：1981-12-08
申请号：US198849
申请日：1980-10-20
申请人： Wendell A. Ehrhart , David A. Smith
发明人： Wendell A. Ehrhart , David A. Smith
IPC分类号： C08F299/04 , C08G63/21 , C09D167/06 , C08L67/00
CPC分类号： C08F299/04 , C08G63/21 , C09D167/06
摘要： A family of non-crystallizing acrylated polyester resins are described in which the polyesters are formed by reacting a mixture of 100 mol percent dicarboxylic acids of which 50 to 100 mol percent is isophthalic acid; 0 to 25 mol percent is terephthalic acid; and 0 to 50 mol percent is one or more dicarboxylic acids other than isophthalic or terephthalic; with an excess of two or more primary glycols, the maximum mol percent of any one glycol being dependent on the amount of isophthalic acid with the upper limit being established by the line A-B of the FIGURE of the Drawing.
摘要翻译：描述了一系列非结晶的丙烯酸酯化的聚酯树脂，其中聚酯通过使50摩尔％至100摩尔％的间苯二甲酸的100摩尔％的二羧酸的混合物反应而形成; 0〜25摩尔％为对苯二甲酸; 0〜50摩尔％是除间苯二甲酸或对苯二甲酸以外的一种或多种二羧酸; 使用过量的两种或更多种二醇，任何一种二醇的最大摩尔百分数取决于间苯二甲酸的量，其上限是通过附图的线A-B确定的。

66. 发明授权

US4172597A Magnetic pick-up device and marker 失效
标题翻译：磁性拾取装置和标记
公开(公告)号：US4172597A
公开(公告)日：1979-10-30
申请号：US904750
申请日：1978-05-11
申请人： David A. Smith , John M. Grace
发明人： David A. Smith , John M. Grace
IPC分类号： A63F3/06
CPC分类号： A63F3/062 , A63F2003/00927
摘要： An improved magnetic pick-up device and marker for use in games includes a rectangular ferromagnetic member having a length substantially greater than width. The ferromagnetic member is fixedly received in a rectangular socket affixed to an elongated handle. The handle with the ferromagnetic member affixed thereto may then be used to retrieve a circular marker formed of translucent material and having ferromagnetic properties after the marker has been utilized as an indicator in a game.
摘要翻译：用于游戏的改进的拾磁装置和标记器包括具有基本上大于宽度的长度的矩形铁磁构件。铁磁构件固定地容纳在固定到细长手柄上的矩形插座中。然后可以使用固定在其上的铁磁构件的手柄来取回由半透明材料形成的圆形标记，并且在标记已经用作游戏中的指标之后具有铁磁性质。

67. 发明授权

US4103445A Roll-up sign 失效
标题翻译：累积标志
公开(公告)号：US4103445A
公开(公告)日：1978-08-01
申请号：US719687
申请日：1976-09-02
申请人： David A. Smith , Thomas P. Hertrick
发明人： David A. Smith , Thomas P. Hertrick
IPC分类号： G09F7/00
CPC分类号： G09F7/00
摘要： A portable sign assembly comprising a rigid knockdown frame and a flexible display web. In a collapsed condition elements of the sign assembly afford a relatively small package size which is conveniently handled and economically shipped. The sign is quickly assembled and disassembled by simple manipulation of the frame elements. In accordance with an important aspect of the invention, the display web is provided with relatively high elastic elongation properties and the frame is arranged to slightly stretch the web to thereby completely tension it and ensure that it is drawn into a planar configuration.
摘要翻译：一种便携式标志组件，包括刚性击倒框架和柔性显示网。在折叠状态下，标志组件的元件提供相对较小的包装尺寸，其方便地处理和经济地运输。通过对框架元件的简单操纵，可以快速组装和拆卸标志。根据本发明的重要方面，显示幅材具有相对高的弹性伸长性能，并且该框架被布置为稍微拉伸幅材，从而完全将其张紧并确保其被拉成平面构型。

68. 发明授权

US4094760A Method and apparatus for differentially and simultaneously electrocoating the interior and exterior of a metal container 失效
标题翻译：金属容器内部和外部差别并同时电涂覆的方法和装置
公开(公告)号：US4094760A
公开(公告)日：1978-06-13
申请号：US818846
申请日：1977-07-25
申请人： David A. Smith , John J. Davidson
发明人： David A. Smith , John J. Davidson
IPC分类号： C25D13/00 , C25D13/14 , C25D13/12
CPC分类号： C25D13/14
摘要： A method and apparatus provided for applying an electrocoat on the interior and exterior of a metal container simultaneously. The interior and exterior of a metal container may be either uniformly or differentially coated. An electrically conductive probe including a nozzle is inserted into a metal container and an electrically conductive housing is enclosed around the container to seal the container therein and to form a continuous passageway from the probe-nozzle to the outer housing. As flowing electrocoating material floods the container in a transient bath, an electrical potential is simultaneously impressed between the container and the probe-nozzle to electrocoat the interior of the container, and between the container and the outer housing to electrocoat the exterior of the container.
摘要翻译：提供用于同时在金属容器的内部和外部施加电泳涂层的方法和装置。金属容器的内部和外部可以均匀地或差异地涂覆。将包括喷嘴的导电探针插入金属容器中，并且导电壳体围绕容器封闭以将容器密封在其中并形成从探针喷嘴到外壳体的连续通道。当流动的电涂覆材料在瞬时浴中使容器淹没时，容器和探针 - 喷嘴之间同时地施加电势，以电泳涂覆容器的内部，以及在容器和外壳体之间电泳涂覆容器的外部。

69. 发明授权

US10604660B2 Wear resistant coating, article, and method 有权
公开(公告)号：US10604660B2
公开(公告)日：2020-03-31
申请号：US13876328
申请日：2011-10-05
申请人： David A. Smith , James B. Mattzela , Paul H. Silvis , Gary A. Barone , Martin E. Higgins
发明人： David A. Smith , James B. Mattzela , Paul H. Silvis , Gary A. Barone , Martin E. Higgins
IPC分类号： C09D5/00 , C23C16/30 , C23C16/56 , C23C16/40 , C23C30/00 , C23C16/02 , C23C16/18
摘要： A wear coating is disclosed that includes a layer treated by a trifunctional organosilane. An article is also disclosed, the article having a surface to which the wear coating is applied. A method of applying the wear coating is also disclosed. In some embodiments, the organosilane is trimethylsilane and the wear coating is applied by chemical vapor deposition, followed by heat treating the wear coating in the presence of the trimethylsilane.

70. 发明授权

US08359676B2 Relatively compact non-contact spray toilet bowl cleaning device 有权
标题翻译：相对紧凑的非接触式喷雾马桶清洗装置
公开(公告)号：US08359676B2
公开(公告)日：2013-01-29
申请号：US12581764
申请日：2009-10-19
申请人： Jesse Richard , David A. Smith
发明人： Jesse Richard , David A. Smith
IPC分类号： E03D9/02
CPC分类号： E03D9/005
摘要： A device for providing cleansing composition to the inner surface of a wall of an enclosure with a fluid, the device having: (a) a first fluid spray bar having an interior space for receiving fluid from a source of the fluid and for spraying the inner surface of the wall of the enclosure. The first fluid spray bar has at least a first spray hole through which cleansing composition may be sprayed, the first spray hole being in fluid communication with the interior space of the spray bar. Additionally, the first spray hole provides a first tangential spray.
摘要翻译：一种用于将清洁组合物提供到具有流体的外壳壁的内表面的装置，所述装置具有：（a）第一流体喷射杆，其具有用于从流体源接收流体的内部空间，并用于喷射内部外壳壁面。第一流体喷射棒具有至少第一喷射孔，清洁组合物可以通过该第一喷射孔喷射，第一喷射孔与喷杆的内部空间流体连通。另外，第一喷孔提供第一切向喷雾。

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