公开(公告)号：US3921048A

公开(公告)日：1975-11-18

申请号：US38031073

申请日：1973-07-18

Applicant: BORG WARNER

Inventor： PADGITT KENNETH W

IPC: A61G7/018 ,  H02P7/74

CPC classification number: A61G7/018

Abstract: A control system and circuitry in an electric motor articulated hospital bed for achieving electrical isolation between the patient''s hand control unit and the higher current motor circuitry and for protecting him against shock is disclosed wherein an optical linkage is employed using photosensitive elements (photoresistors) and low voltage lamps. For each controlled function (e.g. knee up or down) lighting of the lamps changes the resistance of the photoresistor to cause a solid state circuit to turn on one, but never both, of a pair of Triacs each of which is in series with a different directional coil (clockwise or counterclockwise) of a motor and the electric mains (e.g. 120v, 60 hz. a.c.). Two or more motors may be controlled from a single electrically isolated hand held unit. In one embodiment, a low voltage transformer output is switched by the patient, in another embodiment a small d.c. battery is so switched and in a third embodiment the patient controls a mechanical linkage to mask or unmask remotely located photoresistor from a light source.

Abstract translation: 公开了一种电动机铰接医院床中的控制系统和电路，用于实现患者的手控单元和较高电流电动机电路之间的电隔离并且用于保护他免受冲击，其中使用光学连接件使用光敏元件（光电阻器）和低 电压灯。 对于每个受控功能（例如向上或向下），灯的点亮改变光敏电阻的电阻，使得固态电路打开一对三端双向可控硅开关，而不是两者都与不同的串联 电动机和电源的方向线圈（顺时针或逆时针）（例如120v，60hz。ac）。 两个或多个电动机可以由单个电动隔离的手持单元控制。 在一个实施例中，低压变压器输出由患者切换，在另一个实施例中是小的直流。 电池如此切换，并且在第三实施例中，患者控制机械联动以掩蔽或揭开远离光源的光电阻器。

公开(公告)号：US3858434A

公开(公告)日：1975-01-07

申请号：US31389172

申请日：1972-12-11

Applicant: BORG WARNER

Inventor： HOPPESCH JOSEPH P ,  PADGITT KENNETH W ,  WARD DONALD H

IPC: G01N33/497 ,  G01N31/00

CPC classification number: G01N33/4972

Abstract: A control system for a breath tester is disclosed. The tester includes a chamber in which a breath sample is stored, a detector unit positioned to test breath therein and means for shielding the detector unit from the chamber while breath is flowing into the chamber and for unshielding the detector unit thereafter to provide a relatively quiescent breath sample to the detector. A purge pump is also provided. The control system includes means for sensing the breath flow into the chamber during the test and for automatically cutting off that flow, timing a period to allow a quiescent state to be reached and only then allowing the detector unit to be unshielded. It also employs the initial offcycling of a thermostatically controlled heater, after the turning-on of the tester, to indicate the approach of operating conditions and includes interlocks to prevent improper operation and to ensure consistent results.

Abstract translation: 公开了一种用于呼吸测试仪的控制系统。 该测试器包括一个其中存储有呼吸样本的室，一个位于其中测试呼吸的检测器单元，以及用于在呼吸流入该腔室期间屏蔽该检测器单元与该腔室的装置，并且此后不使该检测器单元提供相对静止的装置 呼吸样本到检测器。 还提供清洗泵。 控制系统包括用于在测试期间感测进入腔室的呼吸气流并用于自动切断该流量的装置，定时一段时间以允许达到静止状态，并且仅允许检测器单元不被屏蔽。 它也采用恒温控制加热器的初始脱扣，在测试仪开启后，指示操作条件的接近，并包括互锁以防止不正确的操作并确保一致的结果。

公开(公告)号：US3651454A

公开(公告)日：1972-03-21

申请号：US3651454D

申请日：1969-12-15

Applicant: BORG WARNER

Inventor： VENEMA HARRY J ,  PADGITT KENNETH W

IPC: G07C5/08 ,  G08C15/12

CPC classification number: G07C5/0816 ,  G08C15/12

Abstract: A multiplex system for controlling and sensing various component parts such as head lights, engine temperature, fuel level, and turn signal lights is disclosed. The system employs a single twowire cable to communicate both power and signals between such components and a central control and metering console which may be the instrument dash console. Time multiplex is employed using a reverse polarity for clock pulses from that of the information pulses. Both analog and digital data may be accommodated by using pulse-width modulation as well as bi-level modulation. Receiving units employ a N delay one-shot triggered by the clock pulse and an AND circuit driven by the output of the N delay one-shot and the signal present on the single signal wire, to drive a one-shot which controls a switching device. Similar circuitry is employed for the digital transmitting and the analog transmitter and receiver. A socket input unit for tapping into the single cable in parallel to other input units by employing a piercing plug is disclosed.