公开(公告)号：USD347266S

公开(公告)日：1994-05-24

申请号：US912637

申请日：1992-07-13

Applicant: Robert D. Giese ,  Bruce E. Kierstead ,  Thomas O. Kautz ,  Robin D. Shaffer ,  Kirk P. Henderson ,  Bruce R. Schultz

Designer： Robert D. Giese ,  Bruce E. Kierstead ,  Thomas O. Kautz ,  Robin D. Shaffer ,  Kirk P. Henderson ,  Bruce R. Schultz

公开(公告)号：USD346978S

公开(公告)日：1994-05-17

申请号：US948716

申请日：1992-09-14

Applicant: Robert D. Giese ,  Bruce E. Kierstead ,  Thomas O. Kautz ,  Robin D. Shaffer ,  Kirk P. Henderson ,  Bruce R. Schultz

Designer： Robert D. Giese ,  Bruce E. Kierstead ,  Thomas O. Kautz ,  Robin D. Shaffer ,  Kirk P. Henderson ,  Bruce R. Schultz

公开(公告)号：US4998097A

公开(公告)日：1991-03-05

申请号：US810823

申请日：1985-12-17

Applicant: Myron A. Noth ,  Bruce E. Kierstead

Inventor： Myron A. Noth ,  Bruce E. Kierstead

IPC: H01H35/24 ,  H02H7/08

CPC classification number: H02H7/08 ,  H01H35/24

Abstract: A motor control having mechanical switching and pressure reponsive components for connecting and intercepting a circuit between an A.C. source and an A.C. motor in response to pressure changes in a pressure system. The control includes a microcomputer chip and components that detect a voltage across the motor and a current through the motor and provide signals indicative of the level of the motor voltage and current. The control in response to the signals determines the power factor of the current and in response to the detected signals protects the motor from operating malfunctions when the voltage is too high or low, the current is too high or too low, the time of operation of the motor is too long or too short and in response to the character of the malfunction provides a visual coded lamp indication of the cause of the malfunction.

Abstract translation: 一种具有机械开关和压力调节部件的电动机控制器，用于响应于压力系统中的压力变化来连接和拦截交流电源和交流电动机之间的电路。 该控制器包括微机芯片和检测电动机两端的电压的元件以及通过电动机的电流，并提供指示电动机电压和电流电平的信号。 响应于信号的控制决定了电流的功率因数，并且响应于检测到的信号，当电压过高或过低时，保护电动机不会发生故障，电流过高或过低，操作时间 电动机太长或太短，并且响应于故障的特征提供了故障原因的可视编码灯指示。

公开(公告)号：US4864287A

公开(公告)日：1989-09-05

申请号：US915913

申请日：1986-10-01

Applicant: Bruce E. Kierstead

Inventor： Bruce E. Kierstead

IPC: H01H35/24 ,  H02H7/08

CPC classification number: H01H35/24 ,  H02H7/08

Abstract: A monitor for an electric motor, the monitor capable of connection to a supply of electrical energy for the motor, has a microcomputer for measuring the power factor of a voltage applied to the motor and a current flowing to the motor, for storing a desired value of power factor, for comparing a measured value of power factor with the desired value of power factor, and for disconnecting the motor from the supply of electrical energy if the measured value of the power factor differs from the desired value of power factor by an amount that exceeds a predetermined amount. Further, the monitor has means for operating the motor while driving a desired load; means for commanding the microcomputer to measure a power factor of the voltage applied to the motor and the current flowing to the motor while the motor is driving the desired load; and, means for storing the measured value of the power factor, measured while the motor is driving the desired load, as the desired power factor. The monitor may control a motor driving a pump for a fluid system. The monitor may include: a pressure sensitive mechanical switch; means for measuring motor current, voltage applied to the motor, time intervals during which the motor is energized, and the rapidity of cycle time of the motor in order to disconnect the motor from the source of electrical energy to prevent damage to the motor.

Abstract translation: 一种用于电动机的监视器，能够连接到用于电动机的电能供应的监视器，具有用于测量施加到电动机的电压的功率因数和流向电动机的电流的微型计算机，用于存储期望值 的功率因数，用于将功率因数的测量值与功率因数的期望值进行比较，以及如果功率因数的测量值与功率因数的期望值不同，则将电动机与电能供应断开 超过预定量。 此外，监视器具有用于在驱动所需负载的同时操作电动机的装置; 用于指示微型计算机测量施加到电动机的电压的功率因数和在电动机驱动所需负载时流向电动机的电流的装置; 以及用于存储在电动机驱动期望负载时测量的功率因数的测量值作为所需功率因数的装置。 显示器可以控制驱动用于流体系统的泵的马达。 显示器可以包括：压敏机械开关; 用于测量电动机电流，施加到电动机的电压，电动机通电的时间间隔以及电动机的循环时间的快速性，以便将电动机与电能源断开以防止损坏电动机。