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    • 6. 发明授权
    • Circuitry controlled by coded manual switching for producing a control
signal
    • 通过编码手动切换控制的电路,用于产生控制信号
    • US4417247A
    • 1983-11-22
    • US316233
    • 1981-10-29
    • Daryl D. Dressler
    • Daryl D. Dressler
    • H03K3/64G07C9/00H04Q3/02
    • G07C9/0069
    • Circuitry controlled by a series of switch actuations per a preselected switch code provides a control signal. A plurality of flip-flop circuits are connected for series operation. A plurality of switches in excess of the number of digits in the code are available to provide an actuating signal for a flip-flop circuit. A time delay provided between successive flip-flop circuits enables a given switch to be used more than once for a switch code. Automatic resetting of the last flip-flop circuit at which the control signal is provided allows the control signal to be repeated one or more times before all of the flip-flop circuits are reset. A time delay circuit at the first flip-flop circuit provides for automatic reset of the circuitry. Each switch not connected to a flip-flop circuit as a digit of the switch code will, when actuated, reset the circuitry.
    • 通过每个预选开关代码的一系列开关动作控制的电路提供控制信号。 多个触发电路连接用于串联操作。 超过代码中的位数的多个开关可用于为触发器电路提供致动信号。 在连续的触发器电路之间提供的时间延迟使给定的开关能够被多次用于开关代码。 在提供控制信号的最后触发器电路的自动复位允许控制信号在所有触发器电路复位之前重复一次或多次。 第一触发器电路中的时间延迟电路提供电路的自动复位。 每个不连接到触发器电路的开关作为开关代码的数字,当被激活时将复位电路。
    • 7. 发明授权
    • Liquid level sensing circuitry
    • 液位检测电路
    • US4367462A
    • 1983-01-04
    • US222616
    • 1981-01-05
    • Daryl D. Dressler
    • Daryl D. Dressler
    • G01F23/24G08B21/00
    • G01F23/243
    • A liquid level sensing circuitry using a conductive probe to sense and store an acceptable or unacceptable level signal. Any unacceptable level signal is stored a short time, determined by the circuitry, following termination of power to a power conductor. The circuitry provides a discernible indication of an unacceptable level when power is subsequently applied to the power conductor if an unacceptable level signal has been stored. A separate discernible signal is provided at such time if an acceptable level signal was stored.
    • 使用导电探针感测并存储可接受或不可接受的电平信号的液位感测电路。 任何不可接受的电平信号在电力导体断电后,由电路确定的短时间内存储。 如果已经存储不可接受的电平信号,则当功率随后施加到电力导体时,电路提供不可接受的电平的可辨别的指示。 如果存储了可接受的电平信号,则在此时提供单独的可识别信号。