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71. 发明授权

US06481063B2 Composite hook and loop fasteners, methods of their manufacture, and products containing them 有权
标题翻译：复合钩环紧固件，其制造方法和含有它们的产品
公开(公告)号：US06481063B2
公开(公告)日：2002-11-19
申请号：US09818197
申请日：2001-03-26
申请人： William H. Shepard , William P. Clune
发明人： William H. Shepard , William P. Clune
IPC分类号： A44B1800
CPC分类号： A44B18/008 , A44B18/0049 , A44B18/0088 , B29C2043/465 , B29L2031/729 , Y10T24/15 , Y10T24/2708 , Y10T24/2742 , Y10T24/2758 , Y10T24/2775 , Y10T24/2792 , Y10T24/33
摘要： A composite hook and loop fastener in the form of an elongated strip has an elongated loop component, a hook component permanently affixed to the loop component, and a backing layer disposed on a face of the wrap tie in a discrete region. The backing layer is used for permanent attachment of the wrap tie to a supporting surface. One end of the loop component is available for encircling an object to be wrapped and engaging the fastener elements of the hook component. The loop component has a self-supporting web of entangled fibers, the fibers forming both a sheet-form body and hook-engageable, free-standing loops extending from at least one surface of the body, and the hook component has fastener elements extending from a common base. The backing layer may be a pressure sensitive adhesive or a synthetic resin.
摘要翻译：呈细长条形式的复合钩环紧固件具有细长的环形部件，永久地固定到环部件上的钩部件以及设置在分离区域的包扎带的表面上的背衬层。背衬层用于将包扎带永久地附接到支撑表面。环形部件的一端可用于环绕要包裹的物体并与钩部件的紧固件啮合。环形部件具有缠结纤维的自支承纤维网，该纤维形成从本体的至少一个表面延伸的片状体和钩接合的独立环，并且钩部件具有从一个共同的基础。背衬层可以是压敏粘合剂或合成树脂。

72. 发明授权

US06329016B1 Loop material for touch fastening 有权
标题翻译：用于触摸紧固的环材料
公开(公告)号：US06329016B1
公开(公告)日：2001-12-11
申请号：US09262159
申请日：1999-03-03
申请人： William H. Shepard , Paul R. Erickson
发明人： William H. Shepard , Paul R. Erickson
IPC分类号： B05D312
CPC分类号： A44B18/0011 , A61F13/627 , D04H11/00 , Y10T428/23936 , Y10T428/23957 , Y10T428/23986 , Y10T428/24008 , Y10T428/24017 , Y10T442/2369 , Y10T442/241 , Y10T442/61 , Y10T442/627 , Y10T442/682
摘要： Lightweight, non-woven loop products for hook-and-loop fastening are disclosed, as are methods for making them and end products employing them. The products are non-woven webs of entangled fibers of substantial tenacity, the fibers forming both a sheet-form web body and hook-engageable, free-standing loops extending from the web body. The product is stretched and stabilized to produce spaced-apart loop clusters extending from a very thin web of taut fibers. In important cases a binder is added to stabilize the product in its stretched condition. An example of the loop product is produced by needle-punching a batt of staple fibers in multiple needle-punching operations, applying a foamed acrylic binder, and then stretching the needled batt and curing the binder with the batt stretched. Other forming techniques are disclosed and several novel articles and uses employing such loop products are described, such as for filters and fasteners.
摘要翻译：公开了用于钩环紧固的轻质无纺布环产品，以及用于制造它们和使用它们的最终产品的方法。产品是具有相当强度的缠结纤维的无纺网，纤维形成片状网状体和从网状物体延伸的可钩接合的独立环。产品被拉伸和稳定，以产生从非常薄的拉紧纤维网延伸的间隔开的环状团簇。在重要情况下，加入粘合剂以使产品在拉伸条件下稳定。循环产品的一个例子是通过在多次针刺操作中针刺短纤维进行针刺，施加泡沫丙烯酸粘合剂，然后拉伸针刺毡并用绷带拉伸来固化粘合剂来制备。公开了其它成形技术，并且描述了使用这种环形产品的几种新型制品和用途，例如用于过滤器和紧固件。

73. 发明授权

US4779034A Forced commutation for variable speed motor 失效
标题翻译：变速电机的强制换向
公开(公告)号：US4779034A
公开(公告)日：1988-10-18
申请号：US894111
申请日：1986-08-07
申请人： Francis H. Shepard, Jr.
发明人： Francis H. Shepard, Jr.
IPC分类号： H02M5/45 , H02P23/00 , H02P27/04 , H02P5/40
CPC分类号： H02M5/4505 , H02P21/50 , H02P23/24 , H02P29/032
摘要： A variable speed motor control system includes a power control circuit and a forced commutation control circuit for controlling the torque and rotational speed respectively of an induction motor. The power control circuit and the forced commutation control circuit are independently controlled by signals from a speed control circuit. An overcurrent sensor monitors the motor current and, if excessive current is detected, a speed and power monitor limits the response of the power control circuit and forced commutation control circuit to the speed command. The forced commutation control circuit and power drive circuit contain silicon-controlled rectifiers both for controlling the amount of power fed to the induction motor as well as for controlling the switching of power between combinations of motor windings. A re-pulse generator produces a high-frequency pulse signal with which the gate signals for the silicon-controlled rectifiers are gated to ensure that, if a silicon-controlled rectifier fails to fire when the gate signal is first applied, it will be triggered into conduction with minimum delay. In a current-source inverter embodiment of the invention, a self-regenerating switch momentarily shorts the DC power line feeding silicon-controlled rectifiers controlling the application of power to the motor windings. In preferred embodiments of the invention, two windings of a high-frequency inductor are connected in series with the DC power to the motor-control silicon-controlled rectifiers. The two windings of the high-frequency inductor are tapped for connection to the switch.
摘要翻译：变速电动机控制系统包括功率控制电路和用于分别控制感应电动机的转矩和转速的强制换向控制电路。功率控制电路和强制换向控制电路由来自速度控制电路的信号独立地控制。过电流传感器监测电动机电流，如果检测到过大的电流，速度和功率监视器将功率控制电路和强制换向控制电路的响应限制在速度指令。强制换向控制电路和电力驱动电路包含用于控制馈送到感应电动机的功率量以及用于控制电动机绕组组合之间的功率切换的硅控整流器。再脉冲发生器产生高频脉冲信号，通过该高频脉冲信号，可控硅整流器的栅极信号被选通，以确保如果在第一次施加栅极信号时，硅控整流器不能触发，则将被触发以最小的延迟进入传导。在本发明的电流源逆变器实施例中，自再生开关短暂地短路控制向电动机绕组施加功率的硅控制整流器的直流电力线。在本发明的优选实施例中，高频电感器的两个绕组与DC电力串联连接到电动机控制的硅控整流器。高频电感的两个绕组被点接开关连接。

74. 发明授权

US4738665A Method and apparatus for controlling flow rate of fluid 失效
标题翻译：控制流体流量的方法和装置
公开(公告)号：US4738665A
公开(公告)日：1988-04-19
申请号：US781010
申请日：1985-09-27
申请人： Michael H. Shepard
发明人： Michael H. Shepard
IPC分类号： A61M5/168 , A61M5/00
CPC分类号： A61M5/16881 , Y10T137/0318
摘要： A method and an apparatus for controlling the flow rate of a fluid are disclosed. Fluid is flowed through an elongated passage having a small cross-sectional area to control the flow rate thereof. The length of the elongated passage through which the fluid is flowed is changed in a predetermined manner to change the flow rate of fluid. The apparatus comprises a first member having a spiral shaped elongated groove with a small cross-sectional area formed in a surface thereof and a second member having a surface overlying the groove to form the elongated passage for controlling the flow rate of the fluid. A second groove having a substantially larger cross-sectional area than the elongated passage is formed in the surface of the second member and configured such that it can be selectively placed in communication with spaced locations of said first groove thereby effectively bypassing a portion of the elongated passage and changing the length of the elongated passage through which the fluid is flowed whereby the flow rate of fluid flowed through the elongated passage is changed. The relative position of the first and second members is changed to adjust the length of the elongated passage which is bypassed.
摘要翻译：公开了一种用于控制流体流速的方法和装置。流体流过具有小横截面积的细长通道以控制其流速。流体流过的细长通道的长度以预定的方式改变以改变流体的流速。该装置包括具有形成在其表面中的具有小横截面积的螺旋形细长槽的第一构件和具有覆盖该槽的表面的第二构件，以形成用于控制流体流速的细长通道。具有比细长通道大得多的横截面面积的第二凹槽形成在第二构件的表面中，并且构造成使得其可以选择性地放置成与所述第一凹槽的间隔位置连通，从而有效地绕过细长的一部分通过并改变流体流过的细长通道的长度，从而改变流过细长通道的流体的流速。改变第一和第二构件的相对位置以调节被旁路的细长通道的长度。

75. 发明授权

US4600872A Apparatus for variable speed drive of an induction motor from a fixed frequency AC source 失效
标题翻译：用于从固定频率AC电源变速驱动感应电动机的装置
公开(公告)号：US4600872A
公开(公告)日：1986-07-15
申请号：US713762
申请日：1985-03-20
申请人： Francis H. Shepard, Jr.
发明人： Francis H. Shepard, Jr.
IPC分类号： H02P23/08 , H02P27/04 , G05B1/06 , G05F1/325
CPC分类号： H02P23/08 , H02P27/026
摘要： A control system for driving a variable speed AC motor employing a fixed frequency AC power source, combines pulses representative of a desired slip frequency with pulses of a frequency proportional to the speed of the motor. The combined pulses are employed with a speed command signal to set a threshold which determines the fraction of each cycle of the AC primary power which is fed to the motor. In addition, the speed and slip pulses are employed to direct the AC power to specific ones of the windings of the motor to thereby create a rotating magnetic field in the induction motor. An array of silicon-controlled rectifiers does the actual gating and an SCR protect circuit ensures that transfer of control from one SCR to another is inhibited until all current ceases to flow in an SCR being extinguished. A forced commutation circuit forces the extinction of all current remaining in the last conducting SCR feeding a motor winding at the transfer time from that motor winding to the next.
摘要翻译：用于驱动使用固定频率AC电源的变速AC电动机的控制系统将表示期望转差频率的脉冲与与电动机的速度成比例的频率的脉冲组合。组合脉冲与速度指令信号一起使用，以设定一个阈值，该阈值决定了馈送给电动机的AC主电源的每个周期的分数。此外，速度和滑差脉冲用于将AC电力引导到电动机的特定绕组中，从而在感应电动机中产生旋转磁场。一个可控硅整流器的阵列实际上是门控，一个SCR保护电路确保控制从一个SCR到另一个SCR的传输被禁止，直到所有的电流都停止流过SCR。强制换向电路迫使在从该电动机绕组到下一个电动机绕组的转移时间期间馈送电动机绕组的最后一个传导SCR中剩余的所有电流的消光。

76. 发明授权

US4348738A Electronic typographical display device with justification feature 失效
公开(公告)号：US4348738A
公开(公告)日：1982-09-07
申请号：US94652
申请日：1979-11-15
申请人： William R. Grier , Francis H. Shepard, Jr. , Arthur L. Arledge
发明人： William R. Grier , Francis H. Shepard, Jr. , Arthur L. Arledge
IPC分类号： B41B27/36 , G06F17/25 , G09G1/00 , G09G5/42 , G06F5/00 , G06F5/02
CPC分类号： G06F17/25 , B41B27/36 , G09G1/00 , G09G5/42
摘要： An electronic typographic apparatus includes a multiline display, the top of the display being justified and the lower line constituting a data entry line. Coded typographic data is stored in a character memory, the dot format for the display of characters in different scan lines being produced upon application of stored character data to character generating read only memories. The data entry position of the data entry line of the display is stored and new data is entered into the character memory with counting circuits being employed to keep track of the data entry line and position. The display is "rolled up" one line upon receipt of a carriage return signal, and in the backspacing function, stored data is deleted. Backspacing may proceed into a line previously rolled up, in which case all of the lines are rolled down. The characters are displayed with proportional widths, as a function of a Character Clock signal generated from a read only memory instantaneously responsive to coded signals of the character memory just prior to the display of elements of a character. Word spaces of the top line of the display are counted to develop justification data for justifying the top display line, the justification data being stored in a separate memory and "stretching" the word spaces of the top display line by inhibiting the character clock, while the display scan continues, for the determined periods. Once justification is complete, the aforementioned determined periods are digitized and directed to the hard copy printing device to define the amount of "stretching" required. Tab stops are stored in a separate memory, and a circuit responsive to a tab signal stored in the character memory also inhibits continuation of the character clock signal until a tab stop signal is received from the tab stop memory. A special timing circuit determines when a key has been depressed for more than the normal amount of time, and then activates a gating circuit to initiate repetitive key operation.

77. 发明授权

US4242622A Stabilized non-linear servomechanism 失效
标题翻译：稳定的非线性伺服机构
公开(公告)号：US4242622A
公开(公告)日：1980-12-30
申请号：US38653
申请日：1979-05-14
申请人： Francis H. Shepard, Jr.
发明人： Francis H. Shepard, Jr.
IPC分类号： G05B5/01 , G05D3/14 , G05B6/02
CPC分类号： G05B5/01 , G05D3/1463
摘要： A servomechanism comprising an operational amplifier; a servomotor driven by the amplifier, the amplifier having limited output voltage and current capabilities, i.e. being non-linear; a position sensor; and a position error detector. A negative feedback circuit integrates the limited amplifier output and mixes it with the error signal so as to produce, in the output of the amplifier, a signal proportional in voltage-time product to a derivative of error, even when the output amplitude is limited. Therefore the servo is positioned in the minimum possible time commensurate with the limited capability of the amplifier, without overshoot or undershoot.During an extended slew, the error signal output of the position error detector also becomes limited. Hence, shorting means are provided to prevent undue build-up of the integrated amplifier output feedback signal during this time, and to short a DC feedback blocking capacitor.
摘要翻译：一种伺服机构，包括运算放大器; 由放大器驱动的伺服电动机，放大器具有有限的输出电压和电流能力，即非线性; 位置传感器; 和位置误差检测器。负反馈电路集成有限放大器输出，并将其与误差信号进行混合，以便在放大器的输出中产生与电压时间积成正比的误差信号，即使输出幅度有限。因此，伺服器位于与放大器的有限能力相匹配的最小可能时间，没有过冲或下冲。在延长的转换期间，位置误差检测器的误差信号输出也受到限制。因此，提供短路装置以防止在此期间积分放大器输出反馈信号的过度积累，并且缩短DC反馈阻塞电容器。

78. 发明授权

US4176977A Proportional carrier control and moving mechanism for electric typewriter 失效
标题翻译：电动打字机的比例载体控制和移动机构
公开(公告)号：US4176977A
公开(公告)日：1979-12-04
申请号：US884560
申请日：1978-03-08
申请人： Francis H. Shepard, Jr.
发明人： Francis H. Shepard, Jr.
IPC分类号： B41J19/32 , B41J19/58
CPC分类号： B41J19/32 , Y10S400/903
摘要： A drive arrangement for a single element typewriter in which the element is mounted on a moving carrier, for facilitating proportional spacing incremental movements of the carrier. The carrier is bidirectionally driven by a servo motor which rotates bidirectionally in response to the output of a digital counter. The counter counts in one direction in response to input stepping pulses as well as pulses corresponding to incremental rotational movements of the drive shaft in a given direction, and counts in the other direction in response to pulses corresponding to incremental rotational movements of the drive shaft in the opposite direction. The pulses corresponding to incremental rotational movements of the drive shaft are optically derived from a rotating disk having alternating transparent and opaque radial striations. Provision is made for automatic carrier return by setting the output of the counter accordingly.
摘要翻译：用于单元件打印机的驱动装置，其中元件安装在移动的载体上，用于促进载体的比例间隔增量运动。载体由响应于数字计数器的输出而双向旋转的伺服电动机双向驱动。计数器响应于输入步进脉冲以及与给定方向上的驱动轴的增量旋转运动相对应的脉冲在一个方向上计数，并且响应于对应于驱动轴的增量旋转运动的脉冲在另一方向上计数相反的方向。对应于驱动轴的增量旋转运动的脉冲从具有交替的透明和不透明的径向条纹的旋转盘光学地导出。通过相应地设置计数器的输出来进行自动载体返回的设置。

79. 发明授权

US4041454A Data handling system with remote document scanner 失效
标题翻译：数据处理系统与远程文件扫描仪
公开(公告)号：US4041454A
公开(公告)日：1977-08-09
申请号：US704575
申请日：1976-07-12
申请人： David H. Shepard , Edward J. Gushue
发明人： David H. Shepard , Edward J. Gushue
IPC分类号： G06K9/20 , G06K9/12
CPC分类号： G06K9/2009
摘要： A central time-shared data processing system organized for character analysis and coupled to a number of remote document scanning stations each including a drum document feed, the drum being rotatable in small incremental steps, and means operable between steps for scanning the document along a path parallel to a line of characters on the document to produce data identifying graphic figures for analysis by the central processing system.
摘要翻译：一种中央时间共享数据处理系统，被组织用于字符分析并耦合到多个远程文档扫描站，每个远程文档扫描站包括鼓文件馈送，滚筒可以以小增量步进旋转，以及可在步骤之间操作的装置，用于沿着路径扫描文档平行于文档上的一行字符，以产生识别用于中央处理系统分析的图形数据的数据。

80. 再颁专利

USRE29104E Method of scanning documents to read characters thereon without interference from visible marks on the document which are not to be read by the scanner 失效
标题翻译：扫描文件以在其上读取字符而不受文件上可见标记的干扰的方法，这些标记不被扫描仪读取
公开(公告)号：USRE29104E
公开(公告)日：1977-01-04
申请号：US522686
申请日：1974-11-11
申请人： David H. Shepard
发明人： David H. Shepard
IPC分类号： G06K7/10 , G06K7/14 , G06K9/20
CPC分类号： G06K9/2018 , G06K7/10 , G06K7/14
摘要： An optical character recognition system including a laser scanner unit adapted to scan a document having preprinted markings to indicate where the characters are to be placed. Variations in light intensity reflected from the document and characters produce scan signals which are processed to determine the characters. The color of the markings on the document is related to the laser frequency such that the light reflected from the markings has the same intensity as the light reflected from the document background, so that the presence of the markings does not interfere with the reading of the characters.

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