公开(公告)号：US5772133A

公开(公告)日：1998-06-30

申请号：US537518

申请日：1995-10-02

申请人： John L. Hall

发明人： John L. Hall

IPC分类号： B02C23/12 ,  B02C18/22 ,  B02C18/40

CPC分类号： B02C23/12 ,  B02C19/0075 ,  Y10S241/606

摘要： A revolving trommel situated adjacent to a shredder has an annular screen which intercepts oversized or elongated fragments in the outflow from the shredder for return to the shredder. A first fragment guide directs the shredder outflow into the trommel and vanes in the trommel lift the oversized fragments to another fragment guide which extends out of the trommel to the shredder intake. In the preferred form, the trommel rests upon and is turned by a motor driven flexible continuous belt which carries fragments that pass through the screen upward to an elevated discharge chute. The apparatus is particularly useful for fragmentizing sterilized medical wastes.

摘要翻译： 位于切碎机附近的旋转筛选器具有环形筛网，其拦截来自粉碎机的流出物中的过大或细长碎片以返回到粉碎机。 第一个碎片指南将切碎机流出物引导到转筛机中，并且转盘中的叶片将过大的碎片提升到另一个碎片导向器，其延伸出转筛到切碎机入口。 在优选的形式中，转筛依靠并由电动机驱动的柔性连续带转动，所述带将碎片通过筛网向上运送到升高的排放槽。 该装置对于消毒的医疗废物的碎裂特别有用。

公开(公告)号：US4856009A

公开(公告)日：1989-08-08

申请号：US59076

申请日：1987-06-08

申请人： John L. Hall ,  Miao Zhu

发明人： John L. Hall ,  Miao Zhu

IPC分类号： G01S17/36 ,  H01S3/139

CPC分类号： G01S17/36 ,  H01S3/1392

摘要： The disclosure is directed to a method and apparatus for precisely controlling the frequency of a laser, and for precise control of distance. In a disclosed embodiment, a laser beam is split, modulated to obtain a frequency differential, and coupled to an interferometer which is designed to produce two processed beams having intensities that vary at the same ac frequency, but at a phase difference that is indicative of the laser frequency. The processed beams are converted to ac electrical signals which are coupled to phase control circuitry. The phase control circuitry determines the phase between the electrical signals and produces a control signal for controlling the laser frequency. Phase offset increments are introduced in the phase detection process, these phase offset increments resulting in controlled changes in the laser frequency. The laser frequency can be computed and read out as a function of the phase offset increments. In another embodiment, the control signal is used to accurately control a distance.

摘要翻译： 本公开涉及一种用于精确控制激光器频率并精确控制距离的方法和装置。 在所公开的实施例中，激光束被分离，调制以获得频率差，并耦合到干涉仪，干涉仪被设计成产生两个经处理的光束，其具有在相同交流频率处变化的强度，但是指示相位差 激光频率。 经处理的光束被转换成耦合到相位控制电路的交流电信号。 相位控制电路确定电信号之间的相位，并产生用于控制激光频率的控制信号。 在相位检测过程中引入相位偏移增量，这些相位偏移增量导致激光频率的受控变化。 激光频率可以作为相位偏移增量的函数计算和读出。 在另一个实施例中，控制信号用于精确地控制距离。

公开(公告)号：US4700150A

公开(公告)日：1987-10-13

申请号：US745309

申请日：1985-06-14

申请人： John L. Hall ,  Theodor W. Hansch

发明人： John L. Hall ,  Theodor W. Hansch

IPC分类号： G02F1/03 ,  G02F1/11 ,  H01S3/00 ,  H01S3/13

CPC分类号： G02F1/03 ,  G02F1/113 ,  H01S3/005

摘要： An external laser frequency stabilizer combines an acousto-optic frequency shifter and a fast electro-optic phase modulator. A compensating electronic delay line in a crossover network provides a near-ideal transducer response while keeping the voltage across the electro-optic crystal away from the amplifier limits.

摘要翻译： 外部激光频率稳定器结合了声光移频器和快速电光相位调制器。 交叉网络中的补偿电子延迟线提供近似理想的换能器响应，同时保持电光晶体两端的电压远离放大器限制。

公开(公告)号：US4476678A

公开(公告)日：1984-10-16

申请号：US229149

申请日：1981-01-28

申请人： John L. Hall

发明人： John L. Hall

IPC分类号： B66B13/26 ,  E05F15/00 ,  F15B15/00 ,  F15B15/26 ,  F16K31/122

CPC分类号： B66B13/26 ,  E05F15/41 ,  E05F15/565 ,  E05F15/72 ,  E05Y2900/104 ,  E05Y2900/51 ,  E05Y2900/531

摘要： The control mechanism is for pneumatic apparatus of the kind comprising a piston-and-cylinder motor coupled between two relatively-movable parts (such as door-leaves) for driving them, when energized, to a predetermined relative position. A pilot valve is actuated when required to switch the apparatus to an emergency mode by isolating the motor from its power source and discharging it into an emergency reservoir having a volume large compared with the maximum volume of gas in the motor. While the pilot valve is actuated, the relatively-movable parts are urged towards their predetermined relative positions by a force small compared with the normal operating force. The pilot valve may be arranged to operate operation of an emergency release bolt, on obstruction detected by a detector valve (in which case a timing reservoir provides time delay before full power is restored), on power failure, or as required.

摘要翻译： 该控制机构用于气动装置，该气动装置包括一个联动在两个可相对移动的部件（如门扇）之间的活塞和汽缸电机，用于在通电时将其驱动到预定的相对位置。 当需要时，通过将电动机与其电源隔离并将其排放到与电动机中的最大气体体积相比体积大的紧急储存器中，当需要将导向阀切换到紧急模式时，先导阀被致动。 当先导阀被致动时，通过与正常操作力相比较小的力将相对可移动的部件推向其预定的相对位置。 导向阀可以布置成操作紧急释放螺栓，在电源故障或根据需要时，由检测器阀检测到阻塞（在这种情况下定时储存器提供全功率恢复之前提供时间延迟）。

公开(公告)号：US4398293A

公开(公告)日：1983-08-09

申请号：US300363

申请日：1981-09-08

申请人： John L. Hall ,  Thomas M. Baer ,  Frank V. Kowalski

发明人： John L. Hall ,  Thomas M. Baer ,  Frank V. Kowalski

IPC分类号： H01S3/131 ,  H01S3/139 ,  H01S3/13

CPC分类号： H01S3/1396 ,  H01S3/131

摘要： Frequency stabilization is disclosed for a two-mode laser, such as a Zeemanaser. The emission frequency of the laser is servo-stabilized to the center of the atomic gain curve to provide a stable laser reference frequency that is independant of time and enviromental operating conditions. Stabilization in a longitudinal-field Zeeman laser is achieved by utilizing the mode-pulling effect which makes the frequency difference between the two circular polarization components have a parabolic dependence on the optical frequency of the laser. The detected intermode beat frequency from the laser is subjected to digital phase-sensitive, drift-free integration, utilizing a reversible counter, to provide a cumulative count with a rate of increase corresponding to the displacement of the average wavelength from the atomic center wavelength and an analog error-correction signal is generated therefrom which is coupled to the laser. The error-correction signal is processed and coupled to the piezoelectric crystal which controls the emission frequency of the laser for fast laser frequency correction control, and may be also processed and coupled to the heater coil on the laser for thermally providing slow frequency correctional control.

摘要翻译： 公开了针对诸如塞曼激光器的双模激光器的频率稳定化。 激光器的发射频率被伺服稳定在原子增益曲线的中心，以提供与时间和环境操作条件无关的稳定的激光参考频率。 纵向塞曼激光器的稳定性是通过利用拉模效应实现的，这使得两个圆偏振分量之间的频率差对激光的光频具有抛物线依赖性。 使用可逆计数器，来自激光器的检测到的模式间拍频率经受数字相位敏感，无漂移积分，以提供对应于平均波长从原子中心波长的位移的增加率的累积计数，以及 从其产生耦合到激光器的模拟错误校正信号。 误差校正信号被处理并耦合到压电晶体，压电晶体控制激光器的发射频率以进行快速激光频率校正控制，并且还可以处理并耦合到激光器上的加热器线圈，用于热提供慢频校正控制。

公开(公告)号：US4165183A

公开(公告)日：1979-08-21

申请号：US827996

申请日：1977-08-26

申请人： John L. Hall ,  Siu Au Lee

发明人： John L. Hall ,  Siu Au Lee

IPC分类号： G01J9/02 ,  H03L7/18 ,  G01B9/02

CPC分类号： G01J9/0246 ,  H03L7/18

摘要： A fringe counting interferometric method and apparatus is disclosed. The aratus comprises a fringe-counting Michelson interferometer employing a velocity-stable carriage means for translating the two corner-cube retroreflectors, two phase locked oscillators and counting and control circuitry. Fringe intensity signals are counted for both a reference and unknown beam, and high accuracy is obtained by multiplying reference beam fringe signals by a fixed integral multiplier employing a phase-lock circuit. In comparing the unknown wavelength with the reference, the convenience of direct readout in wavelength units arises from the use of a high resolution preset counter.

摘要翻译： 公开了边缘计数干涉法和装置。 该装置包括边缘计数迈克尔逊干涉仪，其使用用于平移两个角立方后视反射器，两个锁相振荡器和计数和控制电路的速度稳定的滑架装置。 针对参考和未知光束计算边缘强度信号，并且通过使用锁相电路将参考光束条纹信号乘以固定积分乘数来获得高精度。 在将未知波长与参考值进行比较时，以波长单位直接读出的便利性是由于使用高分辨率预设计数器而产生的。

公开(公告)号：US3934626A

公开(公告)日：1976-01-27

申请号：US470842

申请日：1974-05-17

申请人： John L. Hall

发明人： John L. Hall

IPC分类号： B29C45/23 ,  B65B3/04 ,  B65B39/02

CPC分类号： B29C45/23

摘要： An axially compliant injection nozzle for plastic molding machines incorporating a valve actuated by differential motion between the mold and the conditioning chamber comprises a tappet engaged on the stem of that valve and entrapping a valve spring between the valve seat and the tappet. The nozzle has a sliding fit with a bore in the tappet head and is biased away from the latter by a secondary spring. The action of the secondary spring aids in maintaining good sealing contact between the nozzle and the sprue bushing and during the injection period despite variations in the lock-up force between the nozzle and the sprue, and retains such contact subsequent to injection so as to prevent plastic drip due to backflow.

摘要翻译： 用于塑料成型机的轴向柔性注射喷嘴，其结合由模具和调节室之间的差速运动而致动的阀，包括接合在该阀的杆上的挺杆并且在阀座和挺杆之间截留阀弹簧。 喷嘴与挺杆头中的孔具有滑动配合，并且通过次弹簧被偏压远离后者。 辅助弹簧的作用有助于在喷嘴和浇道套管之间保持良好的密封接触，并且在注射期间，尽管喷嘴和浇道之间的锁定力有所变化，并且在喷射之后保持这种接触以防止 塑料滴水由于回流。

公开(公告)号：US07469454B2

公开(公告)日：2008-12-30

申请号：US11510269

申请日：2006-08-25

申请人： Mark Notcutt ,  John L. Hall ,  Long-Sheng Ma

发明人： Mark Notcutt ,  John L. Hall ,  Long-Sheng Ma

IPC分类号： G02F1/21 ,  G01B9/02

CPC分类号： H01S3/02 ,  H01S3/1392 ,  Y10T29/49865 ,  Y10T29/51

摘要： A technique for reducing the vibration sensitivity of laser-stabilizing optical reference cavities is based upon an improved design and mounting method for the cavity, wherein the cavity is mounted vertically. It is suspended at one plane, around the spacer cylinder, equidistant from the mirror ends of the cavity. The suspension element is a collar of an extremely low thermal expansion coefficient material, which surrounds the spacer cylinder and contacts it uniformly. Once the collar has been properly located, it is cemented in place so that the spacer cylinder is uniformly supported and does not have to be squeezed at all. The collar also includes a number of cavities partially bored into its lower flat surface, around the axial bore. These cavities are support points, into which mounting base pins will be inserted. Hence the collar is supported at a minimum of three points.

摘要翻译： 用于降低激光稳定的光学参考腔的振动灵敏度的技术基于用于空腔的改进的设计和安装方法，其中空腔垂直安装。 它悬挂在隔离筒周围的一个平面上，与空腔的镜端等距。 悬挂元件是非常低的热膨胀系数材料的套环，其围绕间隔圆筒并均匀地接触。 一旦套环正确定位，就将其固定就位，以使间隔圆筒均匀地支撑，完全不需要挤压。 轴环还包括围绕轴向孔部分地钻入其下平坦表面的多个空腔。 这些腔是支撑点，安装底座销将插入该支撑点。 因此，衣领至少支持三点。

公开(公告)号：US06831935B2

公开(公告)日：2004-12-14

申请号：US10109999

申请日：2002-03-29

申请人： Jun Ye ,  Henry C. Kapteyn ,  John L. Hall ,  Robert K. Shelton ,  Margaret Murnane ,  Long-Sheng Ma

发明人： Jun Ye ,  Henry C. Kapteyn ,  John L. Hall ,  Robert K. Shelton ,  Margaret Murnane ,  Long-Sheng Ma

IPC分类号： H01S3098

CPC分类号： H01S3/1109 ,  H01S3/094061 ,  H01S3/1394 ,  H01S3/2383 ,  H05G2/00

摘要： Accurate and efficient synchronization of two pulsed radiation sources (e.g. iwo mode locked lasers) is accomplished in stages. Rough synchronization is accomplished by synchronizing (for example) the fundamental repetition rate of the two lasers. Fine synchronization is accomplished by synchronizing high harmonics of the two lasers. More accurate synchronization may be accomplished by adding more stages, by utilizing light out of a nonlinear laser in which the two beams are crossed, or by utilizing heterodyne beats of the two laser beams. A dc offset signal may added to the control signal generated by the synchronization stages.

摘要翻译： 两个脉冲辐射源（例如两个模式锁定激光器）的准确和有效的同步分阶段完成。 通过同步（例如）两个激光器的基本重复率来实现粗略同步。 通过同步两个激光器的高次谐波来实现精细同步。 可以通过使用两个光束交叉的非线性激光器中的光或者通过利用两个激光束的外差拍子来添加更多级来实现更准确的同步。 直流偏移信号可以被添加到由同步级产生的控制信号。

公开(公告)号：US06348174B1

公开(公告)日：2002-02-19

申请号：US09455418

申请日：1999-12-06

申请人： John L. Hall

发明人： John L. Hall

IPC分类号： A61L208

CPC分类号： B09B3/0075 ,  A61L11/00

摘要： Infectious wastes originating in hospitals or other locations are deposited into a sealable, pressure resistant, portable sterilizer vessel at the source of the wastes. The sterilizer vessel rides on wheels enabling travel of the filled vessel to a sterilization station at another location where steam is directed into the vessel to perform the sterilization. Operators need not transfer unprocessed infectious waste from a collection cart to a fixed sterilization vessel at the sterilization site. In the preferred form, handler exposure to unprocessed wastes is further reduced by creating an airflow from the vessel opening to a filter while the vessel is opened for deposit of wastes.

摘要翻译： 源自医院或其他位置的传染性废物，被存放在废物来源的可密封，耐压的便携式灭菌容器中。 消毒器容器在车轮上行驶，使得填充的容器能够在蒸汽被引导到容器中进行灭菌的另一位置处的灭菌站运行。 操作人员无需将未加工的传染性废物从收集车转移到灭菌部位的固定灭菌容器。 在优选形式中，通过在容器打开以产生废物的同时打开容器开口到过滤器的空气流进一步减少处理器对未加工废物的暴露。