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2. 发明授权

US3584706A Safties for elevator hoist motor control having high gain negative feedback loop 失效
标题翻译：具有高增益负反馈环的电梯电机控制的优点
公开(公告)号：US3584706A
公开(公告)日：1971-06-15
申请号：US3584706D
申请日：1968-10-10
申请人： RELIANCE ELECTRIC CO
发明人： HALL DONIVAN L , LOSHBOUGH RICHARD C
IPC分类号： B66B1/30 , B66B5/02
CPC分类号： B66B1/30 , B66B1/285
摘要： A variable voltage hoist motor control wherein a pattern signal is compared with a feedback signal in a high gain closed loop and the signals at critical points in the control are monitored to ascertain unsafe operating conditions. Indicated unsafe conditions alter the control to either a safe operating mode or shut down the system. Monitored signals include the error signal at the summing point for the pattern and feedback signals, rate of change of the feedback signal, signal level at the high power levels for the motor control during the period the elevator car is to be stationary and to be driven at leveling speeds.

3. 发明授权

US3506094A Elevator control providing preferred service to hall calls registered for a long time 失效
标题翻译：电梯控制提供首选服务，以便长时间注册呼叫
公开(公告)号：US3506094A
公开(公告)日：1970-04-14
申请号：US3506094D
申请日：1967-01-20
申请人： RELIANCE ELECTRIC CO
发明人： HALL DONIVAN L , KUZARA JAMES H , MARTIN ORVAL J
IPC分类号： B66B1/22
CPC分类号： B66B1/22

4. 发明授权

US3891041A Weighing scale 失效
标题翻译：称重秤
公开(公告)号：US3891041A
公开(公告)日：1975-06-24
申请号：US47014974
申请日：1974-05-15
申请人： RELIANCE ELECTRIC CO
发明人： HALL DONIVAN L , KUPPER WALTER E
IPC分类号： G01G21/24
CPC分类号： G01G21/24 , G01G21/244
摘要： A weighing scale with improved parallel guidance mechanism including five two-force members which constrain two linear degrees of freedom and the three angular degrees of freedom on the scale''s weigh platter. The five two-force members are check links so arranged in space that five of the six possible degrees of freedom of a body in space, i.e., the weight platter, are constrained leaving the sixth degree of freedom for use in force measurement. The scale also features novel adjustment means for ensuring that a given load weighs the same in all locations on the platter.
摘要翻译：具有改进的平行引导机构的称重秤，包括限制两个线性自由度的五个双力构件和秤的称重盘上的三个角度自由度。五个两力构件是如此布置在空间中的检查连杆，其中空间中的身体的六个可能的自由度中的五个，即重量盘，被限制留下用于力测量的第六自由度。该秤还具有新颖的调节装置，用于确保给定负载在盘片上的所有位置重量相同。

5. 发明授权

US3486584A Energizing controls for elevator hoist equipment of a plural car elevator system 失效
标题翻译：电梯电梯系统电梯设备的控制
公开(公告)号：US3486584A
公开(公告)日：1969-12-30
申请号：US3486584D
申请日：1967-01-20
申请人： RELIANCE ELECTRIC CO
发明人： HALL DONIVAN L , ROBASZKIEWICZ GERALD D
IPC分类号： B66B1/18 , B66B1/24
CPC分类号： B66B1/18

6. 发明授权

US3894593A Weighing scale 失效
标题翻译：称重秤
公开(公告)号：US3894593A
公开(公告)日：1975-07-15
申请号：US47014874
申请日：1974-05-15
申请人： RELIANCE ELECTRIC CO
发明人： HALL DONIVAN L , KUPPER WALTER E
IPC分类号： G01G21/24 , G01G23/14
CPC分类号： G01G21/24 , G01G21/244
摘要： A weighing scale with improved parallel guidance mechanism including five two-force members which constrain two linear degrees of freedom and the three angular degrees of freedom of the scale''s weigh platter. The five two-force members are check links so arranged in space that five of the six possible degrees of freedom of a body in space, i.e., the weight platter, are constrained leaving the sixth degree of freedom for use in force measurement. The scale also features novel adjustment means for ensuring that a given load weighs the same in all locations on the platter.
摘要翻译：具有改进的平行引导机构的称重秤，包括限制两个线性自由度的五个两力构件和秤的称重盘的三个自由度。五个两力构件是如此布置在空间中的检查连杆，其中空间中的身体的六个可能的自由度中的五个，即重量盘，被限制留下用于力测量的第六自由度。该秤还具有新颖的调节装置，用于确保给定负载在盘片上的所有位置重量相同。

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