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1. 发明授权

US4592818A Cathodic protection system 失效
标题翻译：阴极保护系统
公开(公告)号：US4592818A
公开(公告)日：1986-06-03
申请号：US531420
申请日：1983-09-12
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： C23F13/00 , C23F13/04 , G01R27/18
CPC分类号： C23F13/04
摘要： In an impressed current cathodic protection system for a boat and/or its propulsion system the boat battery is connected to a switching type power converter which supplies the anode higher current at lower voltage than taken from the battery. The voltage on the anode is regulated to be constant or to be fixed relative to the voltage at a reference half cell. With either arrangement, the voltage drop across a reference resistor can be applied to an op amp to turn on a transistor to connect an alternate power source to the anode. The voltage across the resistor is regulated by the power converter chip so the chip also regulates the alternate source to prevent excessive voltage on the anode.
摘要翻译：在用于船和/或其推进系统的外加电流阴极保护系统中，船电池连接到开关型功率转换器，其以比从电池获取的电压更低的电压提供阳极较高的电流。阳极上的电压被调节为恒定或相对于参考半电池处的电压而固定。通过任一种布置，参考电阻上的电压降可以被施加到运算放大器以导通晶体管以将替代电源连接到阳极。电阻上的电压由功率转换器芯片调节，因此芯片还调节备用电源以防止阳极上的过大电压。

2. 发明授权

US4559017A Constant voltage anode system 失效
标题翻译：恒压阳极系统
公开(公告)号：US4559017A
公开(公告)日：1985-12-17
申请号：US531462
申请日：1983-09-12
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： C23F13/00 , C23F13/02 , B63H21/24
CPC分类号： C23F13/02
摘要： A marine propulsion unit having a housing exposed to sea water and subject to attack by the sea water is provided with a permanent type anode housing substantially constant surface characteristics mounted on the housing and supplied with constant voltage. Holes under the anode through the housing to interior passages permits the current on the anode to influence and protect the passages.
摘要翻译：具有暴露于海水并受海水袭击的壳体的船舶推进单元设置有永久型阳极，壳体具有安装在壳体上并且被提供恒定电压的基本恒定的表面特性。通过外壳到内部通道的阳极下方的孔允许阳极上的电流影响和保护通道。

3. 发明授权

US4483682A Linear power assist mechanism 失效
标题翻译：线性动力辅助机构
公开(公告)号：US4483682A
公开(公告)日：1984-11-20
申请号：US433629
申请日：1982-10-12
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： B63H5/08 , B63H20/12 , F16H19/00 , B63H21/26
CPC分类号： F16H19/06 , B63H21/265 , B63H5/08 , Y10T74/19535 , Y10T74/20232
摘要： The linear motion power assist mechanism includes a stationary member, a friction drum rotatably supported on the stationary member, an output member mounted for linear, reciprocative movement relative to the stationary member, an input member mounted for linear, reciprocative movement relative to the stationary member and relative to the output member, a first flexible member, such as a wire cable, loosely wound around the drum in one direction, a second flexible member loosely wound around the drum in the opposite direction, and an unidirectional motor rotating the drum. The first cable is tightened on the rotating drum and pulls the output member in a first direction in response to movement of the input member in the first direction. The second cable is tightened on the rotating drum and pulls the output member in the opposite or second direction in response to movement of the input in the second direction.
摘要翻译：线性运动动力辅助机构包括固定构件，可旋转地支撑在静止构件上的摩擦鼓，安装成相对于静止构件线性，往复运动的输出构件，安装成相对于固定构件线性，往复运动的输入构件并且相对于输出构件，沿着一个方向松动地卷绕在滚筒上的诸如线缆的第一柔性构件，沿相反方向松动地缠绕在滚筒周围的第二柔性构件和旋转滚筒的单向马达。第一电缆在旋转的鼓上被拧紧，并且响应于输入构件沿第一方向的移动而沿第一方向拉出输出构件。第二缆线被拧紧在旋转滚筒上，并响应于输入沿第二方向的移动而沿相反或第二方向拉动输出构件。

4. 发明授权

US4262643A Digital timing control system for an internal combustion engine 失效
标题翻译：用于内燃机的数字定时控制系统
公开(公告)号：US4262643A
公开(公告)日：1981-04-21
申请号：US923999
申请日：1978-07-12
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： F02D41/34 , F02D45/00 , F02P5/15 , F02P5/04
CPC分类号： F02P5/15 , Y02T10/46
摘要： Disclosed herein is a digital timing control system for an internal combustion engine comprising a processing circuit for receiving a cyclical engine timing reference pulse and for producing a cyclical control pulse offset from the reference pulse. The processing circuit includes a counter connected to a NAND gate for producing a control pulse when the counter reaches a preset count, a monostable device, subject to the control pulse, for resetting the counter, an oscillator for providing preload pulses to the counter for a predetermined period of time to establish a preload count, and a phase-locked loop, subject to the reference pulse, for transmitting a fixed number of signal pulses per engine revolution to the counter to increment the preload count until said preset count is reached, whereby the control pulse is produced. The system also includes a distributor for receiving the reference pulses and, subject to the control pulses, for converting each of the reference pulses into an output pulse for controlling an engine operating event, such as engine ignition.
摘要翻译：本文公开了一种用于内燃机的数字定时控制系统，其包括用于接收循环引擎定时参考脉冲并用于产生与参考脉冲偏移的循环控制脉冲的处理电路。该处理电路包括一个与NAND门连接的计数器，用于当计数器达到预设计数时产生一个控制脉冲，一个受控制脉冲的单稳态器件，用于复位该计数器;一个用于向计数器提供预加载脉冲的振荡器以及建立预加载计数的预定时间段，以及受到参考脉冲的锁相环，用于将每个发动机转数的固定数量的信号脉冲发送到计数器，以增加预加载计数，直到达到预设计数，由此产生控制脉冲。该系统还包括用于接收参考脉冲并经受控制脉冲的分配器，用于将每个参考脉冲转换成用于控制诸如发动机点火的发动机操作事件的输出脉冲。

5. 发明授权

US4275322A Ignition system with active pulse discriminating means 失效
标题翻译：点火系统具有有源脉冲鉴别手段
公开(公告)号：US4275322A
公开(公告)日：1981-06-23
申请号：US026296
申请日：1979-04-02
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： F02P1/08 , H02K39/00
CPC分类号： F02P1/086 , H02K39/00
摘要： Disclosed herein is a rotary pulse generator including an armature having a two-magnet assembly including spaced pole pieces defining a pair of spaced gaps, an armature plate including a charge core and charge coil mounted thereon, and a trigger core and trigger coil mounted thereon, said trigger core being separate from said charge core but located in proximity to said charge core so that, at a given armature speed, said trigger coil produces a repeating series of trigger pulses including a first major voltage pulse of one polarity and of a major magnitude closely followed by a second minor voltage pulse of opposite polarity and of a minor magnitude substantially less than the major magnitude, the repeating series of trigger pulses being produced in response to the two-magnet assembly sequentially rotating past the trigger core and the charge core. In a preferred embodiment, the rotary pulse generator includes a second two-magnet assembly, and the trigger core includes a thin edge extending radially outwardly so that a relatively sharp pulse is produced by the trigger coil each time one of the spaced gaps passes thereby.
摘要翻译：本文公开了一种旋转脉冲发生器，其包括具有双磁体组件的电枢，所述双磁体组件包括限定一对间隔的间隔的间隔的极片，包括安装在其上的充电芯和充电线圈的衔铁板，以及安装在其上的触发芯和触发线圈，所述触发器芯与所述充电芯分离，但位于所述充电芯附近，使得在给定的电枢速度下，所述触发线圈产生重复的一系列触发脉冲，所述触发脉冲包括一个极性的第一主电压脉冲，紧跟着相反极性的第二次要电压脉冲并且具有基本上小于主要幅度的次要值，响应于顺序旋转经过触发芯和充电芯的双磁体组件而产生重复的触发脉冲序列。在优选实施例中，旋转脉冲发生器包括第二双磁体组件，并且触发器芯包括径向向外延伸的薄边缘，使得每次间隔开的间隙之一时由触发线圈产生相对尖锐的脉冲。

6. 发明授权

US4200078A C. D. ignition system with active pulse discriminating means 失效
公开(公告)号：US4200078A
公开(公告)日：1980-04-29
申请号：US883914
申请日：1978-03-06
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： F02P7/03 , F02P1/08 , F02P3/08 , F02P7/067 , F02P1/00
CPC分类号： F02P1/086
摘要： Disclosed herein is an engine ignition system comprising a charge capacitor, first and second ignition coils respectively including first and second primary windings and first and second secondary windings connected respectively to first and second spark plugs, first and second electronic switches respectively including first and second anodes connected respectively to first and second primary windings, first and second cathodes connected to the charge capacitor, and first and second control elements operable, upon application thereto of a trigger current pulse, to cause the first and second switches to be conductive, and which employs rotary pulse generator means including a relatively rotatable magnet and trigger coil for generating trigger voltage pulses in response to engine rotation, the trigger coil having first and second ends respectively connected to the first and second control elements, a first diode having a cathode connected to and between the first end of the trigger coil and the first control element and having an anode, and a second diode having a cathode connected to and between the second end of the trigger coil and the control element, and having an anode, and active pulse discriminating means for preventing false triggering of the switches, and comprising an active filter circuit including a blocking capacitor having a first plate connected to the first and second cathodes and having a second plate, a resistor having a first end connected to the first and second cathodes and having a second end, the blocking capacitor developing a blocking voltage when a trigger voltage pulse is applied to the first plate, the filter circuit also including current control means having a first terminal connected to the first and second cathodes and the first plate of the capacitor and to the first end of the resistor, a second terminal connected to the second plate of the capacitor and to the second end of the resistor, and a third terminal connected to and between the anodes of the first and second diodes, the current control means being rendered conductive so that a trigger current pulse sufficient to render one of the switches conductive flows between the first and third terminals and through the trigger coil when a trigger voltage pulse exceeds the blocking voltage and a control current is applied to the second terminal.

7. 发明授权

US4413215A Marine trim and tilt positioning system 失效
标题翻译：海洋装饰和倾斜定位系统
公开(公告)号：US4413215A
公开(公告)日：1983-11-01
申请号：US268723
申请日：1981-06-01
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： B63H20/08 , B63H20/00 , G05D1/00 , G05D1/02
CPC分类号： G05D1/0206 , B63H21/265
摘要： A reversible motor is coupled to the stern leg of a watercraft for angulating the leg up and down through a trim and tilt range. A manually settable device provides a voltage signal corresponding to the desired trim angle and a position sensor provides a voltage signal corresponding to the present stern leg position. A first comparator changes the state of its output if the difference between the signals has one polarity and a second comparator changes state for the opposite polarity. The state changes turn on one of two transistor switches which provide an up or a down signal, respectively, to a motor control circuit for causing the motor to run until the difference is nulled. When the active transistor switch turns off, the other delivers a momentary pulse for plugging the motor. The switching transistors are supplied from a power source through up and down tilt control push button switches which, when operated, remove power from the transistor switches and the entire trim control circuit and disable the trim function. The position signal and another reference signal, corresponding to the upper trim limit, are fed to a third comparator such that if the stern leg is tilted out of the permissible trim range any state changes of the first and second comparators are nullified to thereby disable the trim function. Other comparators nullify the trim function in response to an electric circuit failure. The trim control remembers where it was set and restores the stern leg to the trim angle existing at the time the tilt function overrode the trim function by disabling the latter.
摘要翻译：可逆电动机连接到船只的船尾腿部，用于使腿部上下摆动通过修剪和倾斜范围。可手动设置的设备提供对应于所需调整角度的电压信号，并且位置传感器提供对应于当前船尾位置的电压信号。如果信号之间的差异具有一个极性并且第二个比较器改变相反极性的状态，则第一比较器改变其输出的状态。状态变化导通两个晶体管开关中的一个，分别向马达控制电路提供上升或下降信号，以使马达运行直到该差值为零。当有源晶体管开关关断时，另一个输出瞬间脉冲来堵塞电机。开关晶体管通过上下倾斜控制按钮开关从电源提供，当操作时，它们从晶体管开关和整个调整控制电路中消除电力并禁用调整功能。位置信号和对应于上限修正极限的另一个参考信号被馈送到第三比较器，使得如果船尾腿部倾斜到允许的修剪范围之外，则第一和第二比较器的任何状态变化被无效，从而使修剪功能。其他比较器可以根据电路故障消除微调功能。修剪控制记住设置的位置，并通过禁用后者，将艉腿恢复到倾斜功能超出修剪功能时存在的修剪角度。

8. 发明授权

US4260937A Speed sensitive field weakening control for traction motors 失效
标题翻译：牵引电机的速度敏感场弱化控制
公开(公告)号：US4260937A
公开(公告)日：1981-04-07
申请号：US796856
申请日：1977-05-16
申请人： David T. Cavil , William R. Krueger
发明人： David T. Cavil , William R. Krueger
IPC分类号： H02P7/282 , H02P5/06
CPC分类号： H02P7/2825
摘要： Disclosed herein is a control for a direct current motor including a field weakening solenoid switch including a solenoid coil, which control includes an electronic switch connected in series with the coil for selectively connecting the coil to a source of direct current, and a device adapted for providing an electronic digital signal having a frequency proportional to motor speed. The control also includes a first electronic comparator adapted for receiving the digital signal and for providing an output cut-in signal for operating the electronic switch so as to connect the solenoid coil to the source of direct current to effect field weakening when the motor speed increases to a predetermined field weakening cut-in speed, and a second electronic comparator adapted for receiving the digital signal and for providing an output cut-out signal for operating the electronic switch to disconnect the coil from the source of direct current so as to prevent field weakening when the motor speed increases to a predetermined field weakening cut-out speed greater than the predetermined field weakening cut-in speed.
摘要翻译：本文公开了一种直流电动机的控制装置，其包括具有螺线管线圈的减弱弱磁螺线管开关，该控制装置包括与线圈串联连接的电子开关，用于将线圈选择性地连接到直流电源，以及适于提供具有与电机速度成比例的频率的电子数字信号。该控制器还包括一个第一电子比较器，适用于接收数字信号，并提供输出切入信号，用于操作电子开关，以便在电机速度增加时将螺线管线圈连接到直流电源，以实现弱磁化以及第二电子比较器，适于接收数字信号并提供用于操作电子开关的输出切断信号，以将线圈与直流电源断开，从而防止现场当电动机速度增加到大于预定磁场弱化切入速度的预定磁场削弱切断速度时，电流弱化。

9. 发明授权

US4486181A Marine propulsion device including thrust bushing anode 失效
标题翻译：船用推进装置包括推力衬套阳极
公开(公告)号：US4486181A
公开(公告)日：1984-12-04
申请号：US365295
申请日：1982-04-05
申请人： David T. Cavil
发明人： David T. Cavil
IPC分类号： B63H20/14 , B63H20/32 , C23F13/02 , F02B61/04 , B63H1/14
CPC分类号： B63H20/36 , C23F13/02 , B63H20/26 , B63H23/34
摘要： A marine propulsion device is provided including a lower unit having a gearcase and a propeller shaft housing located in the gearcase and supporting a propeller shaft for rotation. A propeller is mounted on the propeller shaft rearward portion for common rotation with the propeller shaft. A thrust bushing is carried by the propeller shaft and for transmitting forward thrust from the propeller to the propeller shaft. An annular sacrificial anode surrounds the propeller shaft and is positioned between the thrust bushing and the propeller shaft bearing housing for providing cathodic protection for the rearward end of the gearcase and the propeller shaft bearing housing.
摘要翻译：提供了一种船用推进装置，包括具有齿轮箱的下部单元和位于齿轮箱中并支撑用于旋转的传动轴的传动轴壳体。螺旋桨安装在传动轴后部，用于与传动轴共同旋转。推力衬套由传动轴承载，并将推力从螺旋桨传递到传动轴。环形牺牲阳极围绕传动轴并且位于推力衬套和推进器轴轴承壳体之间，用于为齿轮箱的后端和传动轴轴承壳体提供阴极保护。

10. 发明授权

US4283668A DC Motor control with alternate action solenoid drive circuit 失效
公开(公告)号：US4283668A
公开(公告)日：1981-08-11
申请号：US10030
申请日：1979-02-07
申请人： David T. Cavil
发明人： David T. Cavil
IPC分类号： H01F7/18 , B60L11/18 , H02P7/06 , H02P3/00
CPC分类号： B60L11/1805 , Y02T10/646 , Y02T10/648 , Y02T10/7005
摘要： Disclosed herein is an alternate action solenoid drive circuit adapted for connection to a DC source having first and second power terminals and which can be incorporated in a DC motor control for a vehicle, also disclosed herein. The drive circuit comprises an actuator switch including go and stop terminals, and an actuator switch operable in response to movement of a foot pedal for alternately moving between a go position connecting the go terminal to the first power terminal and a stop or off position connecting the stop terminal to the first power terminal. The drive circuit includes a thyristor having an anode connected to the go terminal, and a cathode and a gate, a sequencing solenoid including a solenoid coil having one end connected to the cathode and an opposite end connected to the second power terminal, and a parallel RC network connected in series between the stop terminal and the thyristor gate for applying a trigger pulse to the gate when the actuator switch is moved to the off position. The drive circuit also includes a control circuit including a transistor having a collector connected to the anode, an emitter connected to the cathode, and a base connected to the solenoid coil for receiving transient current from the solenoid coil so as to render the transistor conductive for shunting the thyristor to prevent current flow through the thyristor in response to one of the trigger pulses applied to the gate alternate times the actuator is moved to the off position. The control circuit is also connected in circuit with the thyristor for allowing a holding current to flow through the thyristor in response to one of the trigger pulses applied to the gate the other alternate times the actuator switch is moved to the off position, and also for alowing the holding current to increase to an energizing current which flows through the thyristor and the solenoid coil to energize the solenoid alternate times the actuator switch moves to the go position.

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