公开(公告)号：US3205871A

公开(公告)日：1965-09-14

申请号：US27825563

申请日：1963-05-06

Applicant: VAPOR CORP

Inventor： HIGGINS PHILIP M ,  CZARNECKI RAYMOND P ,  OLSEN ROBERT M

IPC: F22B37/42 ,  F22B37/46 ,  F22B37/47 ,  G05D23/22

CPC classification number: G05D23/224 ,  F22B37/42 ,  F22B37/46 ,  F22B37/47

Abstract: 984,117. Safety shut down systems. VAPOR CORPORATION. Aug. 8, 1963 [May 6, 1963], No. 31297/63. Heading F4B. [Also in Division G4] In tubulous water boiler, a thermocouple is attached to the outlet pipe and exposed to heat from a burner, and the output from the thermocouple is amplified and fed to an electronic trigger circuit to shut down the burner when the surface temperature of the pipe exceeds a predetermined limit. The thermocouple 18 is mounted on the outlet pipe 16 of coiled tube boiler 10 heated by a burner 15, and is mounted so that it is exposed to the combustion gases and radiation from the burner. The thermocouple comprises a constantan wire 21 surrounded by insulation within an iron sheath 23 which is welded into a dimple in the outlet pipe 16, Fig. 5, so that the sheath 23 is maintained at the temperature of the pipe 16. The junction of the thermocouple is located at a hot-spot within the boiler. In another form of thermocouple, Fig. 7, the pipe 16 forms one element of the thermocouple, and a protective cover 29 is welded over the constantan wire 26 and its insulation in a groove in the pipe 16. The output from the thermocouple, compared with a reference voltage, is fed to a magnetic amplifier, and to a transistor trigger circuit, Fig. 8 [not shown). The arrangement is such that, during normal operation, a relay is energized to close contacts in the burner control circuit and maintain contacts in an alarm circuit open. Overheating indicated by the thermocouple, or failure of any of the components of the control circuit de-energizes the relay to cut the burner off and sound an alarm.

公开(公告)号：US3867647A

公开(公告)日：1975-02-18

申请号：US36429873

申请日：1973-05-29

Applicant: VAPOR CORP

Inventor： CALLAHAN BERNARD E ,  HIGGINS PHILIP M

IPC: B60L3/10 ,  B60T8/171 ,  G01P3/48 ,  G01P3/54 ,  H03K5/18

CPC classification number: B60L3/10 ,  B60L2200/26 ,  B60T8/171 ,  G01P3/4805

Abstract: A speed detector for producing from the output of an axlemounted transducer an analog output signal indicative of the speed of a moving vehicle. A signal processing circuit responsive to the output of the transducer generates a square-wave control signal which is utilized to control the recurrent charging and discharging of an error integrating capacitor. The rate of discharge of the capacitor is such that an error voltage is developed across the capacitor indicative of the vehicle speed error, and an FET switch controlled by the square-wave periodically applies this error as a pulse to a storage integrator. By varying the discharge rate of the capacitor in accordance with the voltage developed in the storage integrator, an analog output signal indicative of vehicle speed is developed. By controlling the conduction time of the FET switch, the effectiveness of the error on the analog output signal is proportioned to the absolute speed error of the vehicle.

Abstract translation: 一种速度检测器，用于从轴安装的换能器的输出产生指示移动车辆的速度的模拟输出信号。 响应于换能器的输出的信号处理电路产生一个方波控制信号，用于控制误差积分电容器的反复充电和放电。 电容器的放电速率使得在电容器上产生指示车速误差的误差电压，并且由方波控制的FET开关周期性地将该误差作为脉冲施加到存储积分器。 通过根据存储积分器中产生的电压来改变电容器的放电率，开发出表示车速的模拟输出信号。 通过控制FET开关的导通时间，误差对模拟输出信号的有效性与车辆的绝对速度误差成正比。