公开(公告)号：US5691430A

公开(公告)日：1997-11-25

申请号：US697463

申请日：1996-08-26

申请人： James A. Dougherty ,  John G. Mc Kittrick ,  Raymond Bret Clark

发明人： James A. Dougherty ,  John G. Mc Kittrick ,  Raymond Bret Clark

IPC分类号： C08F4/06 ,  C08F4/18 ,  C08F4/26 ,  C08F16/16

CPC分类号： C08F16/16

摘要： A process for polymerizing a vinyl ether monomer which comprises contacting the vinyl ether with an initiator system of silicon dioxide and a one or more metallic oxides.

摘要翻译： 一种聚合乙烯基醚单体的方法，其包括使乙烯基醚与二氧化硅和一种或多种金属氧化物的引发剂体系接触。

公开(公告)号：US20060179895A1

公开(公告)日：2006-08-17

申请号：US10906305

申请日：2005-02-14

申请人： J. Thorn ,  Bret Clark ,  Joseph Marcinkiewicz ,  Vinod Sadasivam ,  Darko Marcetic ,  Gregory Levine

发明人： J. Thorn ,  Bret Clark ,  Joseph Marcinkiewicz ,  Vinod Sadasivam ,  Darko Marcetic ,  Gregory Levine

IPC分类号： D06F33/00

CPC分类号： G01K15/00 ,  G01K7/42 ,  H02H7/0852

摘要： A system and method of determining the temperature of a rotating electromagnetic machine, such as an electric motor or generator. A temperature calibration parameter is calculated based on the temperature of an object situated close to the motor, such as a motor drive connected to the motor, and a first resistance value of the winding. In exemplary embodiments, the motor drive and first resistance value are determined only after the motor has been idle for some predetermined time period. Once the calibration parameter is calculated, the processor uses it along with subsequent resistance measurements to calculate the temperature of the motor.

摘要翻译： 一种确定旋转电磁机器（如电动机或发电机）的温度的系统和方法。 基于位于电动机附近的物体的温度（例如连接到电动机的电动机驱动）和绕组的第一电阻值来计算温度校准参数。 在示例性实施例中，马达驱动和第一电阻值仅在马达已经空转一段预定时间段之后才被确定。 一旦计算出校准参数，处理器将随之进行电阻测量，以计算电机的温度。

公开(公告)号：US06636011B2

公开(公告)日：2003-10-21

申请号：US09880475

申请日：2001-06-13

申请人： Vinodkumar Sadasivam ,  Keith Hoemann ,  Bret Clark

发明人： Vinodkumar Sadasivam ,  Keith Hoemann ,  Bret Clark

IPC分类号： H02P124

CPC分类号： H02P27/08 ,  H02P23/26

摘要： An induction motor control system senses the zero-cross angle of a current waveform applied to the motor's phase windings and computes the difference between the sensed current zero-cross angle and a predetermined demand voltage angle to estimate a power factor angle. The estimated power factor angle is compared to a predetermined desired power factor angle, and the voltage applied to the phase windings is adjusted in response to the difference between the estimated power factor angle and the desired power factor angle.