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公开(公告)号：US4167689A
公开(公告)日：1979-09-11
申请号：US926938
申请日：1978-07-21
申请人： Patric C. Quirke
发明人： Patric C. Quirke
IPC分类号： H05B41/288 , H05B41/26
CPC分类号： H05B41/2885 , Y10S315/07
摘要： A lamp ballast connectable with a d.c. source comprises a regulating device having a voltage coil and a load coil. The voltage coil is connected in a circuit in parallel with the series-connected load coil and lamp. Alternate charge and discharge of a capacitor connected with the voltage coil impresses an alternating voltage thereacross. The capacitor is charged by current through the voltage coil and is discharged through a resonant commutating circuit comprising a thyristor triggered from an oscillator pulse circuit at a frequency of several KHz. The commutating circuit, which has a resonant frequency about twice that of the oscillator, further comprises a commutating reactor having substantially lower impedance than the load and voltage coils, a back current diode, and a resistance-capacitance dV/dt clamp that reduces back voltage spikes across the thyristor to safe rates of rise. Interaction between the load coil and the commutating reactor and/or voltage coil ensures adequate current limiting when resistance across the lamp terminals is low but permits high enough voltage for ignition when that resistance is effectively infinite. Preferred component values are specified for ballasts useable with mercury and low pressure sodium lamps rated at 100W and under.
摘要翻译： 一个可与直流电连接的灯泡镇流器。 源包括具有电压线圈和负载线圈的调节装置。 电压线圈与串联的负载线圈和灯并联连接。 与电压线圈连接的电容器的交替充电和放电在其上施加交流电压。 电容器由电流通过电压线圈充电，并通过包括以几KHz的频率从振荡器脉冲电路触发的晶闸管的谐振换向电路放电。 谐振频率约为振荡器的两倍的整流电路还包括一个整流电抗器，其具有比负载和电压线圈大得多的阻抗，一个反向电流二极管和一个降低反向电压的电阻 - 电容dV / dt钳位 跨越晶闸管的尖峰达到安全上升速度。 负载线圈和换向电抗器和/或电压线圈之间的相互作用确保了当灯端子电阻较低时的电流有足够的限制，但当该电阻无限大时允许足够高的点火电压。 对于可用于100W及以下的汞和低压钠灯的镇流器，可以指定优选的元件值。
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公开(公告)号：US4146859A
公开(公告)日：1979-03-27
申请号：US808475
申请日：1977-06-21
申请人： Patric C. Quirke
发明人： Patric C. Quirke
CPC分类号： H04N3/237 , H01F38/42 , H01F2029/143
摘要： A saturable reactor for correction of pincushion distortion of a TV picture tube raster has, in one form, a magnetically saturable two window core. A single wire control coil is wound transversely around the central leg segment of the core and is connected with the vertical frequency sawtooth driver in a parabolic wave shaping network. A first load coil, wound transversely around one outer core leg, is connected in series circuit with the horizontal frequency sawtooth driver and the horizontal deflection coils. A second load coil is wound around the exterior of the core, in lengthwise embracing relation to its other outer leg, and is connected in series with the vertical deflection coils and also in a phase inverting resonant loop circuit.
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公开(公告)号：US4453052A
公开(公告)日：1984-06-05
申请号：US351520
申请日：1982-02-23
申请人： David W. Semian , Patric C. Quirke
发明人： David W. Semian , Patric C. Quirke
CPC分类号： H01H1/34 , H01H13/16 , Y10S200/02
摘要： An adjustable pressure switch is disclosed which has a generally cylindrical plastic case with a cylindrical cavity formed in one side. A mating, cylindrical pressure plate fits within the cavity and is spaced away from the bottom of the cavity by a resilient annular member. A top electrical contact member is mounted to the pressure plate and a bottom electrical contact member is mounted in the case, with the two contact members being normally maintained in spaced relation by the resilient member. A compression ring fitting within a groove in the cavity in the case holds the pressure plate firmly in position. Force applied to the pressure plate urges the same toward the bottom of the cavity until the two contact members make electrical contact. The amount of force required to close the switches can be adjusted by adjusting the position of the top contact member, formed as a set screw threaded into the pressure plate, or by selecting the shape or material of the resilient annular member.
摘要翻译： 公开了一种可调节的压力开关，其具有在一侧形成有圆柱形空腔的大致圆柱形的塑料壳体。 配合的圆柱形压力板装配在空腔内并且通过弹性环形构件与空腔的底部间隔开。 顶部电接触构件安装到压力板，并且底部电接触构件安装在壳体中，其中两个接触构件通常由弹性构件保持间隔开的关系。 在壳体内的槽内的压缩环配合将压板牢固地保持在适当位置。 施加到压力板的力朝向空腔的底部推动相同，直到两个接触构件进行电接触。 关闭开关所需的力的量可以通过调整顶部接触构件的位置来调节，该顶部接触构件形成为拧入压力板中的固定螺丝，或通过选择弹性环形构件的形状或材料。
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公开(公告)号：US4011552A
公开(公告)日：1977-03-08
申请号：US646995
申请日：1976-01-07
申请人： Patric C. Quirke
发明人： Patric C. Quirke
CPC分类号： G01K3/00 , F25D29/008 , G01K11/06 , G01K7/04
摘要： A temperature sensor for a food freezer alarm or the like comprises a sensing element such as a thermistor enclosed in a capsule filled with a material (e.g., water-alcohol mixture) that melts and freezes at a predetermined temperature (e.g., 25.degree. F.), with such change of state occurring as a result of change of latent heat content of the material.
摘要翻译： 用于食品冷冻报警器等的温度传感器包括感测元件，例如封装在填充有在预定温度（例如25°F）下熔化和冻结的材料（例如，水 - 醇混合物）的胶囊中的热敏电阻） ），由于材料的潜热含量的变化而发生这种状态变化。
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公开(公告)号：US4006371A
公开(公告)日：1977-02-01
申请号：US560487
申请日：1975-03-20
申请人： Patric C. Quirke
发明人： Patric C. Quirke
摘要： An electroacoustical transducer element comprises a piezoelectric disc flatwise bonded to a metal diaphragm, the bond being at the plane of neutral stress. The transducer element defines the front wall of a sealed chamber that serves as an infinite baffle. In front of the element is a resonant acoustical cavity that matches impedance of the element to that of the ambient medium and comprises concentric axially short large and small diameter cylindrical chamber portions, the small diameter portion providing a front outlet from the large diameter one.
摘要翻译： 电声换能器元件包括平坦地结合到金属隔膜的压电盘，该键处于中性应力平面。 传感器元件限定用作无限挡板的密封室的前壁。 元件前面是谐振声腔，其将元件的阻抗与环境介质的阻抗相匹配，并且包括同心轴向短的大直径和小直径的圆柱形腔室部分，小直径部分从大直径部分提供前出口。
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公开(公告)号：US3940662A
公开(公告)日：1976-02-24
申请号：US450990
申请日：1974-03-14
申请人： Patric C. Quirke
发明人： Patric C. Quirke
CPC分类号： H01F38/42 , H01F29/14 , H04N3/237 , H01F2029/143
摘要： A saturable reactor for correction of pincushion distortion of a TV picture tube raster has, in one form, a magnetically saturable two window core. A single wire control coil is wound transversely around the central leg segment of the core and is connected with the vertical frequency sawtooth driver in a parabolic wave shaping network. A first load coil, wound transversely around one outer core leg, is connected in series circuit with the horizontal frequency sawtooth driver and the horizontal deflection coils. A second load coil is wound around the exterior of the core, in lengthwise embracing relation to its other outer leg, and is connected in series with the vertical deflection coils and also in a phase inverting resonant loop circuit.
摘要翻译： 用于校正电视显像管光栅的枕形失真的可饱和电抗器具有一种形式的磁性可饱和的两个窗口核心。 单线控制线圈绕芯的中心腿段横向卷绕，并与抛物线波形整形网络中的垂直频率锯齿驱动器连接。 横向围绕一个外芯腿卷绕的第一负载线圈与水平频率锯齿驱动器和水平偏转线圈串联连接。 第二负载线圈围绕芯的外部缠绕在与其另一个外腿纵向包围的位置上，并且与垂直偏转线圈串联连接，并且还在相位反相谐振回路中。
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