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1. 发明授权

US4129034A Method and apparatus for checking engine performance 失效
标题翻译：检查发动机性能的方法和装置
公开(公告)号：US4129034A
公开(公告)日：1978-12-12
申请号：US135300
申请日：1971-04-19
申请人： Albert B. Niles , Larry H. Franzen , William J. Gardner , Russel W. Grob
发明人： Albert B. Niles , Larry H. Franzen , William J. Gardner , Russel W. Grob
IPC分类号： G01F9/00 , G01M15/04 , G01M15/00
CPC分类号： G01M15/044 , G01F9/001 , G01M15/042
摘要： Brake horsepower of an internal combustion engine is determined rapidly and without necessarily removing the engine from a vehicle or other work installation and without requiring a complex test installation such as a dynamometer. It has been found that the power output of an engine at a specific engine speed and constant load, is a function of the rate of fuel consumption by the engine provided that certain readily detectable engine malfunctions are absent. A compact instrument, preferably using digital circuits to provide a horsepower readout, is coupled to the engine through a digitizing flow meter disposed in the engine fuel line and through a digitizing tachometer coupled to a rotating element of the engine, the instrument also having means connected to the engine to assure that readings are taken only under substantially constant load conditions.
摘要翻译：快速确定内燃机的制动功率，并且不必将发动机从车辆或其他工作装置中移除，而不需要诸如测力计的复杂的测试安装。已经发现，发动机在特定发动机转速和恒定负载下的功率输出是发动机的燃料消耗速率的函数，只要某些易于检测的发动机故障就不存在。优选地使用数字电路提供马力读数的紧凑型仪器通过设置在发动机燃料管线中的数字化流量计并且通过耦合到发动机的旋转元件的数字化转速计耦合到发动机，该仪器还具有连接的装置到发动机，以确保仅在基本上恒定的负载条件下才能进行读数。

2. 发明授权

US5421694A Non-contacting joystick 失效
标题翻译：非接触式操纵杆
公开(公告)号：US5421694A
公开(公告)日：1995-06-06
申请号：US64301
申请日：1993-05-20
申请人： Thomas M. Baker , George Codina , Larry H. Franzen , John F. Szentes
发明人： Thomas M. Baker , George Codina , Larry H. Franzen , John F. Szentes
IPC分类号： B25J13/02 , B66C13/40 , G05D3/12 , G05G9/047 , G06F3/033 , H01H9/16 , E02F9/20
CPC分类号： G05G9/04788 , G05G9/047 , H01H9/161 , G05G2009/0474 , G05G2009/04766 , G05G2009/04777 , G05G2009/04781 , H01H2003/008 , Y10T74/20201
摘要： A non-contacting joystick includes a control shaft being universally movable about a Z-axis. A spherical conducting body is attached to an end of the control shaft. A plurality of conducting plates are disposed circumjacent to the spherical body. A charging power supply supplies electrical energy of a first polarity to the spherical body and electrical energy of a second polarity to the plurality of conducting plates. Each conducting plate forms a variable capacitor with the spherical body. The capacitance value of each variable capacitor is a function of the displacement of the spherical body relative to the Z-axis. A circuit produces a plurality of position signals, each position signal being responsive to a capacitance value of a respective variable capacitor. The position signals indicate the relative position of the spherical body.
摘要翻译：非接触式操纵杆包括可围绕Z轴通用的控制轴。球形导电体附接到控制轴的端部。多个导电板设置在球体的周围。充电电源向球体提供第一极性的电能和向多个导电板提供第二极性的电能。每个导电板与球体形成可变电容器。每个可变电容器的电容值是球体相对于Z轴的位移的函数。电路产生多个位置信号，每个位置信号响应相应可变电容器的电容值。位置信号表示球体的相对位置。

3. 发明授权

US5598090A Inductive joystick apparatus 失效
标题翻译：感应操纵杆装置
公开(公告)号：US5598090A
公开(公告)日：1997-01-28
申请号：US507134
申请日：1995-07-31
申请人： Thomas M. Baker , George Codina , Larry H. Franzen
发明人： Thomas M. Baker , George Codina , Larry H. Franzen
IPC分类号： G05G9/047 , H02K35/00
CPC分类号： G05G9/047 , G05G2009/04755
摘要： In one aspect of the present invention, a joystick is disclosed. The joystick includes a control shaft and a pivotal mount for the control shaft. A plurality of centering springs bias the control shaft to a neutral position, and extend and contract in response to pivotal movement of the control shaft. An oscillator circuit is coupled to the centering springs and produces an output signal having a frequency responsive to the inductance of the centering springs.
摘要翻译：在本发明的一个方面，公开了一种操纵杆。操纵杆包括控制轴和用于控制轴的枢转安装座。多个定心弹簧将控制轴偏置到中立位置，并且响应于控制轴的枢转运动而延伸和收缩。振荡器电路耦合到定心弹簧并产生具有响应于定心弹簧的电感的频率的输出信号。

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