公开(公告)号：USRE32664E

公开(公告)日：1988-05-10

申请号：US488527

申请日：1983-04-29

申请人： John M. Osepchuk ,  James E. Simpson

发明人： John M. Osepchuk ,  James E. Simpson

IPC分类号： H05B6/76

CPC分类号： H05B6/763

摘要： A high frequency oven having a door sealed to the oven by a seal which prevents the escape of high frequency energy between the door and the oven by acting as a choke to energy attempting to pass across the seal in which excitation of energy modes in a band of frequencies including the desired operating frequency range of the oven is controlled peripherally along the seal. An energy absorbing gasket surrounds the seal to absorb any energy passing outwardly from the energy seal.The questions raised in reexamination request No. 90/000,945, filed Jan. 29, 1986, have been considered and the results thereof are reflected in this reissue patent which constitutes the reexamination certificate required by 35 U.S.C. 307 as provided in 37 CFR 1.570(e).

公开(公告)号：US5438242A

公开(公告)日：1995-08-01

申请号：US80839

申请日：1993-06-24

申请人： James E. Simpson

发明人： James E. Simpson

IPC分类号： H05B41/24 ,  H05B41/28 ,  H05B41/392 ,  H05B37/00

CPC分类号： H05B41/24 ,  H05B41/2813 ,  H05B41/3927 ,  Y02B20/22

摘要： A power supply for providing a stable operating current to a magnetron-excited lamp. The power supply includes a DC to DC inverter for driving a primary winding of a high voltage transformer. The DC to DC inverter has a circuit including two pairs of switching elements for connecting a DC voltage supply to the primary winding. During each half of the switching cycle, one of the switching elements is pulse width modulated while the other remains on for a substantially fixed period of time. During the second half of the cycle, the remaining pair operates so that one switching device is on for a pulse width modulated period of time, and the other is on a substantially constant amount of time. The on time for the pulse width modulated switching elements is defined by an input voltage setting representing a desired brightness level for the lamp, the output magnetron current, and a representative of the integral of the current flowing through the primary of the inverter transformer.

摘要翻译： 用于向磁控管激励的灯提供稳定工作电流的电源。 电源包括用于驱动高压变压器的初级绕组的DC-DC逆变器。 DC-DC逆变器具有包括用于将DC电压源连接到初级绕组的两对开关元件的电路。 在开关周期的每一半期间，其中一个开关元件是脉冲宽度调制的，而另一个开关元件保持在基本上固定的时间段内。 在该周期的后半段期间，剩下的一对工作，使得一个开关装置在脉冲宽度调制的时间段内导通，另一个开启时间是基本恒定的。 用于脉冲宽度调制的开关元件的接通时间由表示灯的期望亮度水平的输入电压设置，输出磁控管电流以及表示流过逆变器变压器的初级电流的积分的代表来定义。

公开(公告)号：US5227698A

公开(公告)日：1993-07-13

申请号：US850278

申请日：1992-03-12

申请人： James E. Simpson ,  Mohammad Kamarehi

发明人： James E. Simpson ,  Mohammad Kamarehi

IPC分类号： H01J65/04 ,  H05B41/24

CPC分类号： H01J65/044 ,  H05B41/24

摘要： A microwave powered lamp wherein microwave energy is coupled to a cavity in which an electrodeless bulb is disposed, such that a rotating field of constant ellipticity is established in the cavity.

摘要翻译： 一种微波照明灯，其中微波能耦合到其中设置无电极灯泡的空腔，使得在空腔中建立恒定椭圆率的旋转场。

公开(公告)号：US4580023A

公开(公告)日：1986-04-01

申请号：US709237

申请日：1985-03-06

申请人： James E. Simpson

发明人： James E. Simpson

IPC分类号： H05B6/72

CPC分类号： H05B6/72

摘要： A circularly polarized microwave oven. Microwave energy is coupled from a waveguide above the ceiling to the cavity by a rotatable vertical probe. A strip transmission line closely spaced to the ceiling to limit radiation therefrom conducts the microwave current from the probe to a helical strip antenna radially offset from the axis of the probe. The helical strip antenna has a cylindrical segment which has a downward slope from its feed end to gradually increase the spacing between the cylindrical segment and the ceiling which functions as a ground plane. The increase in radiative efficiency around the cylindrical segment caused by increasing the spacing to the ceiling offsets the magnitude of the current traveling wave diminishing as a result of radiation losses. Accordingly, the magnitude of the X and Y electric vectors are substantially equal over a relatively wide angle thus defining circular polarization. Connected to the opposite end of the cylindrical segment is a flat or horizontal segment of the helical antenna. Rotation of the probe about its axis moves the helical antenna in a horizontal circular path thus further enhancing the heating uniformity.

摘要翻译： 圆极化微波炉。 微波能量通过可旋转的垂直探针从天花板上方的波导耦合到空腔。 与天花板紧密隔开以限制辐射的带状传输线将微波电流从探针传导到径向偏离探针轴线的螺旋条状天线。 螺旋带状天线具有圆柱形段，其从其进给端具有向下的斜面，以逐渐增加用作接地平面的圆柱形段和天花板之间的间隔。 由于通过增加到天花板的间距而引起的圆柱形段周围的辐射效率的增加抵消了由于辐射损耗而导致的当前行波的幅度的减小。 因此，X和Y电矢量的大小在相对较宽的角度上基本上相等，从而限定圆偏振。 连接到圆柱段的另一端是螺旋天线的平坦或水平段。 探针围绕其轴的旋转将螺旋天线移动到水平圆形路径中，从而进一步增强了加热均匀性。

公开(公告)号：US07197115B2

公开(公告)日：2007-03-27

申请号：US10710877

申请日：2004-08-10

申请人： Christopher D. Unger ,  Darren L. Hallman ,  Walter Smith ,  James E. Simpson

发明人： Christopher D. Unger ,  Darren L. Hallman ,  Walter Smith ,  James E. Simpson

IPC分类号： H01J35/20

CPC分类号： H01J35/10

摘要： An imaging tube assembly (11) for a computed tomography (CT) system (10) includes an insert (60) that has a vacuum chamber (72). An anode (58) resides within the vacuum chamber (72) and rotates on a shaft (66) via one or more bearing (70). In one embodiment, a seal (52) resides between the insert (60) and the shaft (66). The seal (52) prevents the passage of a gas (80) into the vacuum chamber (72). In another embodiment, a pressure transition chamber (104) is coupled to an insert (60″) and a shaft (66″). The pressure transition chamber (104) has an associated middle fluid pressure that is between an internal fluid pressure of the vacuum chamber (104) and an external fluid pressure of said insert (60″).

摘要翻译： 用于计算机断层摄影（CT）系统（10）的成像管组件（11）包括具有真空室（72）的插入件（60）。 阳极（58）位于真空室（72）内，经由一个或多个轴承（70）在轴（66）上旋转。 在一个实施例中，密封件（52）位于插入件（60）和轴（66）之间。 密封件（52）防止气体（80）进入真空室（72）。 在另一个实施例中，压力过渡室（104）联接到插入件（60“）和轴（66”）。 压力过渡室（104）具有在真空室（104）的内部流体压力和所述插入件（60“）的外部流体压力之间的相关联的中间流体压力。

公开(公告)号：US5910710A

公开(公告)日：1999-06-08

申请号：US754858

申请日：1996-11-22

申请人： James E. Simpson

发明人： James E. Simpson

IPC分类号： H05B41/24 ,  H05B41/16

CPC分类号： H05B41/24

摘要： An electrodeless lamp waveguide structure includes tuned absorbers for spurious RF signals. A lamp waveguide with an integral frequency selective attenuation includes resonant absorbers positioned within the waveguide to absorb spurious out-of-band RF energy. The absorbers have a negligible effect on energy at the selected frequency used to excite plasma in the lamp. In a first embodiment, one or more thin slabs of lossy magnetic material are affixed to the sidewalls of the waveguide at approximately one quarter wavelength of the spurious signal from an end wall of the waveguide. The positioning of the lossy material optimizes absorption of power from the spurious signal. In a second embodiment, one or more thin slabs of lossy magnetic material are used in conjunction with band rejection waveguide filter elements. In a third embodiment, one or more microstrip filter elements are tuned to the frequency of the spurious signal and positioned within the waveguide to couple and absorb the spurious signal's energy. All three embodiments absorb negligible energy at the selected frequency and so do not significantly diminish the energy efficiency of the lamp.

摘要翻译： 无电极灯波导结构包括用于杂散RF信号的调谐吸收器。 具有积分频率选择衰减的灯波导包括位于波导内的共振吸收器，以吸收杂散的带外RF能量。 吸收体在用于激发灯中的等离子体的选定频率处的能量具有可忽略的影响。 在第一实施例中，一个或多个有损磁性材料的薄板被从波导的端壁以大约四分之一波长的杂散信号固定在波导的侧壁上。 有损耗材料的定位优化了来自寄生信号的功率吸收。 在第二实施例中，有损磁性材料的一个或多个薄板与带阻波导滤波器元件结合使用。 在第三实施例中，将一个或多个微带滤波器元件调谐到寄生信号的频率并且定位在波导内以耦合和吸收寄生信号的能量。 所有三个实施例在所选频率处吸收可忽略的能量，因此不会显着降低灯的能量效率。

公开(公告)号：US5448135A

公开(公告)日：1995-09-05

申请号：US141961

申请日：1993-10-28

申请人： James E. Simpson

发明人： James E. Simpson

IPC分类号： H05B41/24 ,  H01J65/04 ,  H01P5/02 ,  H01P5/103

CPC分类号： H01P5/103 ,  H01J65/044

摘要： Apparatus for coupling electromagnetic energy to electrodeless lamps. A waveguide having one end connected to a source of electromagnetic radiation was closed at the second opposite end. A coupling device at the second end couples microwave energy from the waveguide to an electrodeless lamp. The coupling device includes a coaxial transmission line having a center conductor extending through one of the walls of the waveguide adjacent the second end. An alcove partition within the waveguide contacts the extending conductor and forms an alcove in the waveguide. The alcove portion provides for an impedance matching structure between the transmission line and waveguide. The electrodeless lamp which is positioned above the free end of the coaxial transmission line is excited with the coupled microwave energy.

摘要翻译： 用于将电磁能耦合到无电极灯的装置。 具有连接到电磁辐射源的一端的波导在第二相对端处封闭。 第二端的耦合装置将来自波导的微波能量耦合到无电极灯。 耦合装置包括一个同轴传输线，其中心导体延伸穿过邻近第二端的波导的一个壁。 波导内的凹室分隔件与延伸导体接触并在波导中形成壁龛。 凹槽部分提供传输线和波导之间的阻抗匹配结构。 位于同轴传输线自由端上方的无电极灯被耦合的微波能量激发。

公开(公告)号：US5361274A

公开(公告)日：1994-11-01

申请号：US849719

申请日：1992-03-12

申请人： James E. Simpson ,  Mohammed Kamarehi ,  Brian Turner ,  Michael G. Ury

发明人： James E. Simpson ,  Mohammed Kamarehi ,  Brian Turner ,  Michael G. Ury

IPC分类号： H01J65/04 ,  H05B41/24 ,  H05H1/46 ,  H01S3/093

CPC分类号： H05H1/46 ,  H01J65/044

摘要： A microwave powered discharge device which utilizes a TM.sub.NMO cavity. A conductive body is positioned at a null in a discharge device which utilizes a TM.sub.210 cavity to reduce direct coupling from the microwave coupling means, e.g., slot of the cavity. A plurality of TM.sub.110 cavities are ganged together, and a single discharge tube extends through all of the cavities.

摘要翻译： 一种利用TMNMO腔体的微波放电装置。 在使用TM210空腔的放电装置中，导电体位于零点处，以减少来自微波耦合装置（例如腔的槽）的直接耦合。 多个TM110腔体组合在一起，并且单个放电管延伸穿过所有空腔。

公开(公告)号：US4414453A

公开(公告)日：1983-11-08

申请号：US209847

申请日：1980-11-24

申请人： James E. Simpson

发明人： James E. Simpson

IPC分类号： H05B6/72 ,  H05B6/80

CPC分类号： H05B6/725 ,  H05B6/72

摘要： A microwave oven having a directional rotating antenna axially supported on an axis of one wall of a microwave oven cavity of the microwave oven which provides circularly symmetric uniform energy distribution of microwave energy within the microwave oven cavity and consistent heating of a product in the microwave oven cavity. The directional rotating antenna includes a two-by-two array of antenna elements where each element is an end driven half-wavelength resonating antenna element supported by a length of conductor perpendicular to the wall of the microwave oven cavity. A parallel plate transmission line connects to each of the supports, four of which join at a junction which connects to a cylindrical probe antenna. The probe antenna is excited by microwave frequency currents of a waveguide adjacent to the wall of the microwave oven cavity. The directional antenna is rotated by a moving stream of air circulated through the microwave oven cavity. A dome having a flattened conical shape extending outwardly in the wall of the microwave oven cavity provides a nearly circular recess partially surrounding the directional rotating antenna and provides uniform energy distribution in the product being heated. The dome returns microwave energy reflected from the product towards a circular area in the middle area of the microwave oven cavity. A transition section extends between the top of the dome and the one wall of the microwave oven cavity. The waveguide including three sides affixed to the outside wall of the dome, the transition section, and an extension of the wall extending beyond the microwave oven cavity which supports the microwave power source, all of which comprise the fourth wall of the waveguide. The microwave oven provides a consistent cooking pattern, especially for sensitive foods by utilizing high power of the microwave power source.

摘要翻译： 一种微波炉，其具有定向旋转天线，其轴向支撑在微波炉的微波炉腔的一个壁的轴线上，其提供微波炉腔内的微波能量的圆周对称均匀能量分布，并且在微波炉中一致地加热产品 腔。 定向旋转天线包括两乘二阵列的天线元件，其中每个元件是由垂直于微波炉腔的壁的导体长度支撑的端部驱动的半波长谐振天线元件。 平行板传输线连接到每个支撑件，其中四个连接在连接到圆柱形探头天线的连接处。 探头天线由与微波炉腔壁相邻的波导的微波频率电流激发。 定向天线由循环通过微波炉腔的空气流动旋转。 具有在微波炉腔壁的外部向外延伸的扁平圆锥形的圆顶部提供部分围绕定向旋转天线的近似圆形的凹部，并且在被加热的产品中提供均匀的能量分布。 圆顶将产品反射的微波能量返回到微波炉腔中部的圆形区域。 过渡部分在圆顶的顶部和微波炉腔的一个壁之间延伸。 波导包括三个侧面，其固定到圆顶的外壁，过渡部分以及延伸超过支撑微波功率源的微波炉空腔的壁的延伸部分，所有微波功率源都包括波导的第四壁。 微波炉提供了一致的烹饪模式，特别是通过利用微波功率的大功率敏感食品。

公开(公告)号：US06617806B2

公开(公告)日：2003-09-09

申请号：US09776914

申请日：2001-02-06

申请人： Douglas A. Kirkpatrick ,  James T. Dolan ,  Donald A. MacLennan ,  Brian P. Turner ,  James E. Simpson

发明人： Douglas A. Kirkpatrick ,  James T. Dolan ,  Donald A. MacLennan ,  Brian P. Turner ,  James E. Simpson

IPC分类号： H05B4116

CPC分类号： H01J65/044 ,  Y02B20/22

摘要： An electrodeless microwave discharge lamp includes a source of microwave energy, a microwave cavity, a structure configured to transmit the microwave energy from the source to the microwave cavity, a bulb disposed within the microwave cavity, the bulb including a discharge forming fill which emits light when excited by the microwave energy, and a reflector disposed within the microwave cavity, wherein the reflector defines a reflective cavity which encompasses the bulb within its volume and has an inside surface area which is sufficiently less than an inside surface area of the microwave cavity. A portion of the reflector may define a light emitting aperture which extends from a position closely spaced to the bulb to a light transmissive end of the microwave cavity. Preferably, at least a portion of the reflector is spaced from a wall of the microwave cavity. The lamp may be substantially sealed from environmental contamination. The cavity may include a dielectric material is a sufficient amount to require a reduction in the size of the cavity to support the desired resonant mode.