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公开(公告)号：US07458656B2
公开(公告)日：2008-12-02
申请号：US11284162
申请日：2005-11-21
申请人： David E. Smith
发明人： David E. Smith
IPC分类号： B41J29/393
CPC分类号： B41J2/17566
摘要： Embodiments of measuring a pressure difference are disclosed.
摘要翻译： 公开了测量压力差的实施例。
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42.发明授权Determining a difference between a level of power to be supplied and an estimate 有权确定要提供的电力水平与估计值之间的差异公开(公告)号：US07142993B2
公开(公告)日：2006-11-28
申请号：US10965459
申请日：2004-10-13
申请人： David E. Smith , Kenneth B. Wade
发明人： David E. Smith , Kenneth B. Wade
IPC分类号： G06F19/00
CPC分类号： B41J29/38 , G01R21/133
摘要： In one embodiment, an apparatus comprises a device to provide an estimate of supplied power circuitry configured to direct a level of power to be supplied to a load and configured to determine a difference between the level of the power and the estimate.
摘要翻译： 在一个实施例中，一种装置包括一个装置，用于提供所配置的电源电路的估计，该功率电路被配置为将要提供给负载的功率水平定向，并被配置成确定功率水平与估计之间的差。
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公开(公告)号：USD344326S
公开(公告)日：1994-02-15
申请号：US902048
申请日：1992-06-22
申请人： David E. Smith , Nina L. Smith
设计人： David E. Smith , Nina L. Smith
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公开(公告)号：US4747224A
公开(公告)日：1988-05-31
申请号：US67615
申请日：1987-06-26
申请人： David E. Smith
发明人： David E. Smith
摘要： This invention relates to a firearm having an improved catch arrangement for retaining a magazine in a well in a grip portion of the firearm. A single spring (56) operates simultaneously pivotally to urge a catch member (18) into a magazine engaging position, to retain the catch member on a pivot and to urge outwardly catch release buttons (19 and 20) which can be depressed to engage inclined cam surfaces (18G and 18H) to cause retraction of the catch (18F) from a magazine detent engaging position.
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公开(公告)号：US4742407A
公开(公告)日：1988-05-03
申请号：US872931
申请日：1986-06-11
IPC分类号： G11B15/67
CPC分类号： G11B15/67
摘要： An automatic tape threading device transfers a tape leader and its associated tape from a supply reel, past a transducer head, to a take-up reel. It is comprised of a threader arm having a perpendicular threader pin which follows an arcuate path defined by an overhead cam. The overhead cam guides the threader pin from a first predetermined position, which relates to a leader block associated with the supply reel, to a second predetermined position, which relates to a receiver mechanism within the take-up reel.
摘要翻译： 自动带穿线装置将带引导件及其相关带从供带盘传送到卷取卷轴上。 它包括一个穿线器臂，该穿线器具有一个垂直的螺纹销，其跟随由顶部凸轮限定的弧形路径。 顶置凸轮将穿线销从与供应卷轴相关联的引导块相关的第一预定位置引导到与收起卷轴内的接收机构有关的第二预定位置。
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公开(公告)号：US4589327A
公开(公告)日：1986-05-20
申请号：US593389
申请日：1984-03-26
申请人： David E. Smith
发明人： David E. Smith
摘要： A safety catch for a self-loading pistol type fire arm is provided with a safety catch comprising an arbor (HH) rotatable in the fire arm frame (A) by means of manual levers (HH2 and JJ2) mounted outside the frame on either side. From a rest or off position, in which the fire arm can be fired, the arbor can be rotated upwardly to an end position in which means on the arbor engage the hammer (J) when it is in either the cocked or uncocked position, to lock it against rotation and thus prevent the pistol being fired. Additionally, when the hammer is cocked, the arbor can be rotated in the opposite direction, in which case it causes rotation of a detent member (LL) which lifts the ejector (L) to engage and hold the firing pin and to retract the end (S2) of the firing pin (S) struck by the hammer (J) within the slide (B) and thereafter to trip the sear (K) to release the hammer (J) safely from the cocked to the uncocked position.
摘要翻译： 用于自载式手枪型消防臂的安全锁具设置有安全锁，其包括通过安装在两侧的框架外部的手动杆（HH2和JJ2）在火臂框架（A）中可旋转的心轴（HH） 。 从休息或关闭位置，其中火臂可以被点燃，心轴可以向上旋转到结束位置，在该位置上，心轴上的装置在锤子或未被锁定的位置接合锤子（J），到 锁定它不旋转，从而防止手枪被射击。 此外，当锤子被锁定时，心轴可以沿相反的方向旋转，在这种情况下，心轴可以引起棘爪构件（LL）的旋转，该定位构件提升喷射器（L）以接合和保持击发销并且使端部 （S）中由击锤（J）撞击的击发销（S）的后端（S2），然后使捣锤（K）脱离以将锤（J）从被起动器安全地释放到未锁定位置。
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公开(公告)号：USD275387S
公开(公告)日：1984-09-04
申请号：US413207
申请日：1982-08-30
申请人： Harold D. Fetty , David E. Smith
设计人： Harold D. Fetty , David E. Smith
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公开(公告)号：USD247634S
公开(公告)日：1978-03-28
申请号：US702334
申请日：1976-07-06
申请人： David E. Smith , Gordon C. Gravelle
设计人： David E. Smith , Gordon C. Gravelle
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公开(公告)号：US08076988B2
公开(公告)日：2011-12-13
申请号：US12394465
申请日：2009-02-27
申请人： David E. Smith
发明人： David E. Smith
IPC分类号： H03C3/00
CPC分类号： H03C3/00
摘要： Circuitry and methods are provided. Voltage and current of an electrical load are detected, scaled and biased to derive respective voltage and current signals. Frequency-modulated signals corresponding to the voltage and current signals are respectively derived. The frequency-modulated signals are communicated between different electrical domains by way of optical isolation barriers. The frequency-modulated signals are processed to improve linearity and to time-correlate the signals to discrete samplings of the load voltage and current. Control of a printer or other device is performed using the processed signals.
摘要翻译： 提供电路和方法。 电负载的电压和电流被检测，缩放和偏置以导出相应的电压和电流信号。 分别导出与电压和电流信号相对应的频率调制信号。 频率调制信号通过光隔离屏障在不同的电域之间进行通信。 对频率调制信号进行处理，以提高线性度并将信号时间相关到负载电压和电流的离散采样。 使用处理的信号来执行打印机或其他设备的控制。
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公开(公告)号：US20100253157A1
公开(公告)日：2010-10-07
申请号：US12417442
申请日：2009-04-02
申请人： David E. Smith
发明人： David E. Smith
IPC分类号： G01R1/20
CPC分类号： G06K15/00 , G06F1/26 , G06F1/3203 , G06F1/3284 , G06F1/3287 , Y02D10/126 , Y02D10/159 , Y02D10/171
摘要： Circuitry and methods are provided. Voltage and current of an electrical load are scaled, biased and alternately sampled to derive a multiplexed signal. The multiplexed signal is used to control an oscillator so as to provide a multiplexed frequency-modulated signal. The multiplexed frequency-modulated signal is processed to improve linearity and to time-correlate signal content with discrete samplings of the load voltage and current. Control of a printer or other device is performed using the processed signal.
摘要翻译： 提供电路和方法。 对电负载的电压和电流进行缩放，偏置和交替采样以得到多路复用信号。 多路复用信号用于控制振荡器，以便提供多路复用的调频信号。 处理复用的频率调制信号以改善线性度并且使负载电压和电流的离散采样对信号内容进行时间相关。 使用所处理的信号来执行打印机或其他设备的控制。
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