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11.发明授权
公开(公告)号：US3952293A
公开(公告)日：1976-04-20
申请号：US482041
申请日：1974-06-24
Applicant: Allan L. Flanagan , Richard Driscoll , David A. Richardson
Inventor： Allan L. Flanagan , Richard Driscoll , David A. Richardson
Abstract: A deviation meter, responding to a deviation signal, is mounted on a turntable which rotates in response to a set point adjustment. Rotation of the turntable maintains the null position of the deviation meter pointer at a scale position corresponding to a set point value, so that a direct readout of the actual measurement value is provided.
Abstract translation: 响应于偏差信号的偏差计安装在响应于设定点调整而旋转的转台上。 转台的旋转将偏差计指示器的零位保持在与设定值对应的刻度位置，从而提供实际测量值的直接读数。
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公开(公告)号：US5025770A
公开(公告)日：1991-06-25
申请号：US377436
申请日：1989-07-07
Applicant: David A. Richardson
Inventor： David A. Richardson
Abstract: A combination of an apparatus (22) and an engine (30) to provide power to the apparatus, a vehicle (10) of the type having a hydraulic system for operating digging, excavating, or shovelling tools (16,21) for examples, the hydraulic system being pressurized by a pump (33) which is driven from the engine (30) of the vehicle, there being a fuel delivery system for providing fuel to the engine, and a sensing means (49) to sense operation of the apparatus, the fuel delivery system comprising means (48) responsive to the sensing means (49) to provide a first quantity of fuel to the engine (50) when the apparatus (22) is being operated, and to provide a second, reduced, quantity of fuel to the engine (30) when the apparatus has not been operative for a predetermined delay time.
Abstract translation: 为了向设备提供动力的装置（22）和发动机（30）的组合，具有用于操作挖掘，挖掘或挖掘工具（16,21）的液压系统的类型的车辆（10） 所述液压系统由从所述车辆的发动机（30）驱动的泵（33）加压，存在用于向所述发动机提供燃料的燃料输送系统以及用于感测所述装置的操作的感测装置（49） ，燃料输送系统包括响应于感测装置（49）的装置（48），以在装置（22）被操作时向发动机（50）提供第一量的燃料，并且提供第二减少的量 的燃料供给发动机（30），当该装置未被操作预定的延迟时间时。
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公开(公告)号：USRE31416E
公开(公告)日：1983-10-18
申请号：US161123
申请日：1980-06-19
Applicant: Everett O. Olsen , Donald C. Simpson , David A. Richardson
Inventor： Everett O. Olsen , Donald C. Simpson , David A. Richardson
IPC: G01L1/10
CPC classification number: G01L1/10
Abstract: A force-measuring instrument of the vibrating-wire type wherein the mechanical components are located at the force-measuring location and the vibrating wire is coupled through a two-wire transmission line to electronic circuitry at a distant location. The electronic circuitry includes means to excite the vibrating wire and to produce a d-c measurement output signal corresponding to the frequency of vibrations. The electronic circuitry further includes function-generating means to establish a closely-linear relationship between the output current and the force applied to the wire. Means also are incorporated in the electronic circuitry for adjusting the zero and span of the instrument, and this can be done without interaction between the adjustments.
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公开(公告)号：US4107874A
公开(公告)日：1978-08-22
申请号：US763596
申请日：1977-01-28
Applicant: David A. Richardson
Inventor： David A. Richardson
CPC classification number: A01G31/02 , Y02P60/216
Abstract: A sprouter having a wall or walls defining the lateral extent of a growing chamber, and a base connected to the wall or walls for forming a bottom of the chamber. The base includes proturbances that form indentations on the base for retaining a quantity of water which supplies sprouts growing in the growing chamber with water for a predetermined length of time. The proturbances also prevent seeds in the growing chamber from sliding when the base is tilted slightly during movement.
Abstract translation: 具有限定生长室的横向范围的壁或壁的发芽器，以及连接到壁或壁的基底，用于形成室的底部。 基部包括在基部上形成凹陷的保护，用于保持一定量的水，其在生长室中生长的芽用水预定长度的时间。 当运动过程中基座稍微倾斜时，这种保护措施也可防止生长室内的种子滑动。
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公开(公告)号：US4016721A
公开(公告)日：1977-04-12
申请号：US613229
申请日：1975-09-15
Applicant: David A. Richardson , Robert J. Robinson
Inventor： David A. Richardson , Robert J. Robinson
Abstract: A positioning device for controlling a member such as a pen of a chart recorder, wherein the positioning motion is produced by a wire formed of temperature-responsive material (Nitinol) exhibiting a martensitic transformation which contracts the wire when its temperature is increased within a predetermined temperature range, and relaxes the wire when cooled within that range. The wire is maintained under tension by a spring having a negative spring-rate. This spring cooperates with internally generated forces and the elasticity of the wire material to produce contraction/expansion length changes of the wire in response to changes in its temperature. Electrical circuitry for controlling the wire temperature is disclosed, and includes means for inductively developing a frequency-modulated pulse-current through the wire.
Abstract translation: 一种用于控制图表记录器的笔的构件的定位装置，其中定位运动由表现马氏体转变的温度响应材料（镍钛诺）形成的线材产生，该线材在其温度在预定的温度范围内增加时使线材收缩 温度范围内，并在该范围内冷却时放松电线。 电线通过具有负弹簧率的弹簧保持在张力下。 该弹簧与内部产生的力和线材的弹性配合，以响应于其温度的变化而产生线的收缩/膨胀长度变化。 公开了用于控制导线温度的电路，并且包括用于感应地开发通过导线的调频脉冲电流的装置。
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Patent Agency Ranking
公开(公告)号：US3948098A
公开(公告)日：1976-04-06
申请号：US463734
申请日：1974-04-24
Applicant: David A. Richardson , Robert J. Robinson
Inventor： David A. Richardson , Robert J. Robinson
CPC classification number: G01F1/3254 , G01F1/329
Abstract: Flow-metering apparatus of the vortex-shedding type wherein an obstruction in a flowing fluid develops a series of vortices which are sensed by a pressure-responsive piezo-electric element to produce an alternating voltage having a frequency corresponding to the fluid flow rate. The piezo-electric voltage signal is processed by electronic circuitry to provide for precise detection of the zero-crossings of the voltage alternations. The resulting frequency signal controls the charge/discharge characteristics of a set of capacitors, with the average charging current corresponding in magnitude to the frequency of vortex shedding. This average current controls an output amplifier in a feedback arrangement to produce a relatively high-powered d-c flow signal over a two-wire transmission line leading to a remote station. In another arrangement, a high-powered pulsating flow signal is developed for transmission over a three-wire transmission line leading to a remote station.
Abstract translation: 涡流脱落型的流量计量装置，其中流动流体中的阻塞物产生一系列由压力响应压电元件感测的旋涡，以产生具有对应于流体流速的频率的交流电压。 压电电压信号由电子电路处理以提供精确检测电压交替的过零点。 所得到的频率信号控制一组电容器的充电/放电特性，其中平均充电电流大小对应于涡流脱落的频率。 该平均电流控制反馈装置中的输出放大器，以在通向远程站的双线传输线上产生相对高功率的d-c流信号。 在另一种布置中，大功率脉动流信号被开发用于在通向远程站的三线传输线上传输。
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公开(公告)号：USD764292S1
公开(公告)日：2016-08-23
申请号：US29534260
申请日：2015-07-27
Applicant: David A. Richardson
Designer： David A. Richardson
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公开(公告)号：US5149329A
公开(公告)日：1992-09-22
申请号：US626184
申请日：1990-12-12
Applicant: David A. Richardson
Inventor： David A. Richardson
CPC classification number: A61F2/0036 , A61B17/04 , A61B17/0625 , A61B2017/00349 , A61B2017/00805 , A61B2090/038
Abstract: A suturing needle assembly used in a surgical operation to correct anatomical stress urinary incontinence, the suturing needle assembly having a needle and a sheath. The needle has an elongated flexible portion and a rigid portion which defines a tip for piercing tissue and an eyelet for removably attaching surgical thread. The sheath may selectively envelop the needle when it is beneficial to protect the patient and surgeon from the sharp tip. The flexibility and length of the needle and the sheath allow the suturing needle assembly to navigate a contoured internal passageway such as a female reproductive tract. According to a method of the present invention, the suturing needle assembly, laden with surgical thread, is inserted into a patient's vagina and guided to an operating site at the superior wall of the vagina below the urinary bladder neck. At the operating site, the needle tip is thrust through the superior wall of the vagina and into the retropubic space a sufficient number of times so that the superior wall of the vagina may be elevated and bound to structures in the retropubic space. As a result, problems of stress urinary incontinence are alleviated using the suturing needle assembly in a procedure which avoids needle stick of the surgeon's fingers.
Abstract translation: 一种缝合针组件，其用于外科手术以矫正解剖学应力性尿失禁，所述缝合针组件具有针和护套。 针具有细长的柔性部分和限定用于刺穿组织的尖端的刚性部分和用于可拆卸地连接外科手术线的孔眼。 当有益于保护患者和外科医生免受尖锐尖端时，护套可以选择性地包扎针。 针和护套的柔性和长度允许缝合针组件导航成轮廓的内部通道，例如女性生殖道。 根据本发明的方法，将装有外科用螺纹的缝合针组件插入患者的阴道中，并引导到膀胱颈下方阴道上壁的手术部位。 在手术部位，针尖通过阴道上壁推进足够的次数，使得阴道的上壁可以升高并绑定到耻骨上空间的结构。 结果，在避免外科医生手指的针刺的过程中，使用缝合针组件减轻了压力性尿失禁的问题。
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公开(公告)号：US5041233A
公开(公告)日：1991-08-20
申请号：US535244
申请日：1990-09-08
Applicant: Yuriy O. Kutny , Frederick S. Osmer , Joseph J. Podgorsky , David A. Richardson , Karla J. Rys
Inventor： Yuriy O. Kutny , Frederick S. Osmer , Joseph J. Podgorsky , David A. Richardson , Karla J. Rys
CPC classification number: C11D13/04 , C07C51/412 , C11D10/042 , C11D13/02 , C11D1/126
Abstract: A batch and continuous process is disclosed for the production of a composition comprising alkali metal salts of C.sub.8 -C.sub.22 alkyl fatty monocarboxylic acid and C.sub.8 -C.sub.22 acyl isethionate in a ratio of 20:1 to 1:0.98. Both batch and continuous routes require that the saponifying aqueous caustic solution includes sodium hydroxide and sodium isethionate maintained as a hot solution at a temperature of from 180.degree. F. to about 200.degree. F. For the batch route, the sequence of steps require the caustic solution to be added slowly to the fatty acid. In the continuous process, it is advantageous to introduce fatty acid upstream from the point where the caustic solution stream enters the mixing chamber.
Abstract translation: 公开了用于制备包含C 8 -C 22烷基脂肪一元羧酸的碱金属盐和C 20 -C 22酰基羟乙基磺酸盐的比例为20:1至1:0.98的组合物的间歇和连续方法。 批次和连续路线都要求皂化的苛性碱水溶液包括氢氧化钠和羟乙基磺酸钠，其温度为180°F至约200°F。对于批次路线，步骤顺序需要苛性碱 溶液缓慢加入到脂肪酸中。 在连续方法中，从苛性碱溶液流进入混合室的点上游引入脂肪酸是有利的。
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20.发明授权
公开(公告)号：US4616332A
公开(公告)日：1986-10-07
申请号：US423256
申请日：1982-09-24
Applicant: Robert J. Robinson , David A. Richardson
Inventor： Robert J. Robinson , David A. Richardson
Abstract: Apparatus for converting an analog-format electrical signal or quantity (such as the magnitude of an electrical circuit element) into a corresponding pulse-format signal, preferably in the form of a train of periodic pulses the lengths of which are controllable as a percentage of the cyclic period. A pulsed duty-cycle signal is developed in a negative feedback loop around an integrator having an analog-format input signal. The integrator output controls the d-c level of an up-and-down ramp signal which is fed to a comparator to produce pulses during the times the ramp voltage is above (or below) the firing threshold of the comparator. These pulses control a switch between the integrator input and a reference voltage so as to produce a negative feedback signal for the integrator. The negative feedback action controls the d-c level at the integrator ouptut and thereby sets the pulse duty-cycle to a value such that the average signal level through the pulsed switch to the integrator input relates in prescribed fashion to the applied input signal. The duty-cycle signal developed through such feedback action corresponds directly to the magnitude of the applied input signal.
Abstract translation: 用于将模拟格式的电信号或数量（例如电路元件的大小）转换成对应的脉冲格式信号的装置，优选地以周期脉冲串的形式，其长度可以以 循环周期。 在具有模拟格式输入信号的积分器周围的负反馈环路中产生脉冲占空比信号。 积分器输出控制上升斜坡信号的d-c电平，该信号在斜坡电压高于（或更低）比较器的触发阈值的时间之前被馈送到比较器，以产生脉冲。 这些脉冲控制积分器输入和参考电压之间的开关，以便为积分器产生负反馈信号。 负反馈动作控制积分器输出端的d-c电平，从而将脉冲占空比设置为使得通过脉冲开关到积分器输入的平均信号电平以规定的方式与所施加的输入信号相关。 通过这种反馈动作产生的占空比信号直接对应于所施加的输入信号的幅度。
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