公开(公告)号：US3594961A

公开(公告)日：1971-07-27

申请号：US3594961D

申请日：1969-10-13

申请人： WILLIAM C REYNOLDS

发明人： REYNOLDS WILLIAM C

IPC分类号： B24B3/24 ,  B24B3/28 ,  B24B3/26

CPC分类号： B24B3/28 ,  B24B3/247

摘要： A holder for sharpening twist drills wherein the drill rests between sets of rollers mounted on a pair of parallel shafts. The shafts form part of a frame which pivots a limited amount about an axis perpendicular to the axis of the drill. A clamp is secured to the drill, and is provided with diametrically disposed shafts either one of which is insertable between a pair of fixed rods underlying the rollers which cause the drill to turn on its axis as the frame is moved arcuately. An adjustable stop controls the axial position of the drill. A modification involves the use of a slotted V-guide.

公开(公告)号：US08907604B2

公开(公告)日：2014-12-09

申请号：US13367675

申请日：2012-02-07

申请人： Jami J. Miller ,  Michael W. Degner ,  Scott Xiong Yu ,  William C. Reynolds

发明人： Jami J. Miller ,  Michael W. Degner ,  Scott Xiong Yu ,  William C. Reynolds

IPC分类号： H02K29/06

CPC分类号： H02M1/44 ,  B60L2240/526 ,  B60L2270/142 ,  H02M7/5395

摘要： An optimized pseudo-random period pattern can reduce audible noise in a system that includes an inverter circuit configured to provide power to an electric machine. A system can include a PWM optimization module (POM) comprising the PPP. A carrier period for a carrier signal used to provide PWM inverter drive signals can be selected in accordance with the PPP. The PPP can be expressed as an array of 200-400 elements, each element a period belonging to a finite set of 2 or more predetermined periods. A period can be selected by index from the array, and the index incremented to progress through the PPP, which can be repeated upon its completion. The PPP can be optimized to reduce audible noise while mitigating inverter losses. Modeling techniques can determine the number of array elements, the number of possible periods, and the period values that optimize the PPP.

摘要翻译： 优化的伪随机周期模式可以减少系统中的可听噪声，该系统包括被配置为向电机提供电力的逆变器电路。 系统可以包括包括PPP的PWM优化模块（POM）。 可以根据PPP选择用于提供PWM逆变器驱动信号的载波信号的载波周期。 PPP可以表示为200-400个元素的阵列，每个元素的周期属于2个或更多个预定周期的有限集合。 可以通过数组的索引选择一个时间段，索引增加到通过PPP进行，这可以在完成后重复。 PPP可以优化，以减少可听见的噪音，同时减轻变频器的损耗。 建模技术可以确定数组元素的数量，可能的周期数，以及优化PPP的周期值。

公开(公告)号：US20130200828A1

公开(公告)日：2013-08-08

申请号：US13367675

申请日：2012-02-07

申请人： Jami J. Miller ,  Michael W. Degner ,  Scott Xiong Yu ,  William C. Reynolds

发明人： Jami J. Miller ,  Michael W. Degner ,  Scott Xiong Yu ,  William C. Reynolds

IPC分类号： H02P6/10 ,  H02M1/12

CPC分类号： H02M1/44 ,  B60L2240/526 ,  B60L2270/142 ,  H02M7/5395

摘要： An optimized pseudo-random period pattern can reduce audible noise in a system that includes an inverter circuit configured to provide power to an electric machine. A system can include a PWM optimization module (POM) comprising the PPP. A carrier period for a carrier signal used to provide PWM inverter drive signals can be selected in accordance with the PPP. The PPP can be expressed as an array of 200-400 elements, each element a period belonging to a finite set of 2 or more predetermined periods. A period can be selected by index from the array, and the index incremented to progress through the PPP, which can be repeated upon its completion. The PPP can be optimized to reduce audible noise while mitigating inverter losses. Modeling techniques can determine the number of array elements, the number of possible periods, and the period values that optimize the PPP.

摘要翻译： 优化的伪随机周期模式可以减少系统中的可听噪声，该系统包括被配置为向电机提供电力的反相器电路。 系统可以包括包括PPP的PWM优化模块（POM）。 可以根据PPP选择用于提供PWM逆变器驱动信号的载波信号的载波周期。 PPP可以表示为200-400个元素的阵列，每个元素的周期属于2个或更多个预定周期的有限集合。 可以通过数组的索引选择一个时间段，索引增加到通过PPP进行，这可以在完成后重复。 PPP可以优化，以减少可听见的噪音，同时减轻变频器的损耗。 建模技术可以确定数组元素的数量，可能的周期数，以及优化PPP的周期值。

公开(公告)号：US4217780A

公开(公告)日：1980-08-19

申请号：US055877

申请日：1979-07-09

申请人： J. Garland O'Connell ,  William C. Reynolds

发明人： J. Garland O'Connell ,  William C. Reynolds

IPC分类号： G01N35/10 ,  B01L3/02 ,  G01N1/10

CPC分类号： G01N35/1004

摘要： A fluid sampling nozzle is spatially fixed, and adapted to be supplied by fluid to be sampled. A nearby actuating switch, manipulated by the operator, energizes a sequence of sampling, cleaning, and drying steps. In particular, once fluid is withdrawn, the sample is removed. A waste removal sink pivots to a point beneath the nozzle, and in a series of motions by a probe washer assembly, the nozzle is successively washed, inside and out. The apparatus is then returned to its initial position, ready for successive sampling operations.

摘要翻译： 流体采样喷嘴在空间上固定，并且适于由待采样的流体提供。 由操作员操纵的附近的致动开关激励一系列取样，清洁和干燥步骤。 特别地，一旦液体被取出，就移除样品。 废物清除槽枢转到喷嘴下方的一个点，并且在通过探针垫圈组件的一系列运动中，喷嘴被连续地洗涤，内部和外部。 然后将设备返回到其初始位置，准备进行连续采样操作。