公开(公告)号：WO1996039567A1

公开(公告)日：1996-12-12

申请号：PCT/US1996008594

申请日：1996-06-04

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  WILKINSON, G., Mark ,  PRONKO, Steven, G., E.

IPC: E21B07/15

CPC classification number: F42D3/00 ,  E21B7/15 ,  E21C37/18

Abstract: A method and apparatus for blasting of hard rock using a highly insensitive energetic material ignited with a moderately high energy electrical discharge causing the fracturing and break up of the hard rock is provided. The blasting apparatus (10) comprises a reusable blasting probe (14) including a high voltage electrode (44) and a ground return electrode (46) separated by an insulating tube (40). The two electrodes of the blasting probe (14) are in electrical contact with a continuous volume (70) of highly insensitive yet combustible material such as a metal powder and oxidizer mixture. The metal particles within the metal powder and oxidizer mixture form a plurality of fusible metal paths between the high voltage electrode (44) and the ground return when subjected to an electric current delivered from a large capacitor bank (16) coupled to the high voltage electrode (44). The plurality of fused metal paths act much like a fuse in that they provide a sufficiently high electrical resistance to allow coupling of the electrical energy from the capacitor bank (16) to the metal powder and oxidizer mixture causing an increased dissipation of heat which initiates an exothermic reaction of the metal powder and oxidizer mixture generating high pressure gases fracturing the surrounding rock.

Abstract translation: 提供了一种使用高度不敏感的高能材料来破坏硬质岩石的方法和装置，该材料被中等高能量放电引起，导致硬岩的断裂和破裂。 爆破装置（10）包括可重复使用的爆破探针（14），其包括由绝缘管（40）分开的高压电极（44）和接地返回电极（46）。 爆破探针（14）的两个电极与高度不敏感的可燃材料如金属粉末和氧化剂混合物的连续体积（70）电接触。 当金属粉末和氧化剂混合物中的金属颗粒在经受从耦合到高电压电极的大电容器组（16）传送的电流时在高压电极（44）和接地回路之间形成多个可熔金属路径 （44）。 多个熔融金属路径的作用非常类似于熔丝，因为它们提供足够高的电阻以允许来自电容器组（16）的电能与金属粉末和氧化剂混合物的耦合，导致增加的热耗散，从而引发 产生高压气体的金属粉末和氧化剂混合物的放热反应破坏了周围的岩石。

公开(公告)号：WO1993012942A1

公开(公告)日：1993-07-08

申请号：PCT/US1992011034

申请日：1992-12-21

Applicant: McDONNELL DOUGLAS CORPORATION ,  MAXWELL LABORATORIES, INC. ,  COLD JET INC.

Inventor： McDONNELL DOUGLAS CORPORATION ,  MAXWELL LABORATORIES, INC. ,  COLD JET INC. ,  CATES, Michael C. ,  HAMM, Richard R. ,  HOOGERWERF, John D. ,  LEWIS, Michael W. ,  SCHMITZ, Wayne N.

IPC: B44D03/16

CPC classification number: B24C1/086 ,  B08B7/0035 ,  B23K26/144 ,  B24C1/003 ,  B44D3/166

Abstract: A method is provided for removing material from a structure having at least one layer of material formed on a substrate. The method includes the steps of irradiating a target area of a structure with radiant energy sufficient to break or weaken chemical bonds in the material, and impinging the target area with a particle stream to remove the pyrolyzed material from the structure. The method may be implemented by a system (10) comprising a housing (12) having a window (20); a radiant energy source (14) mounted in the housing for irradiating the target area of the structure with the radiant energy; and a nozzle (32) mounted to the exterior of the housing for directing the stream of particles (30) at the target area.

Abstract translation: 提供了一种用于从具有在衬底上形成的至少一层材料的结构去除材料的方法。 该方法包括以下步骤：用足以破坏或削弱材料中的化学键的辐射能照射结构的目标区域，以及用颗粒流冲击目标区域以从结构中去除热解的材料。 该方法可以由包括具有窗口（20）的壳体（12）的系统（10）来实现。 安装在壳体中的辐射能源（14），用于以辐射能照射结构的目标区域; 以及安装到壳体外部的喷嘴（32），用于将粒子流（30）引导到目标区域。

公开(公告)号：WO1985002094A1

公开(公告)日：1985-05-23

申请号：PCT/US1984001804

申请日：1984-11-05

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  HOFMANN, Gunter, A.

IPC: A23L03/00

CPC classification number: C02F1/48 ,  A23L3/01 ,  A23L3/32 ,  A61L2/02 ,  C02F2303/04

Abstract: Method of sterilizing food by killing or deactivating microorganisms without altering the taste or other properties of the food. Food in or out of containers having high electrical resistivity are disposed within an electro-magnetic coil (10) and subjected to one or more pulses of an oscillating magnetic field having an intensity of between about 2 and about 100 Tesla and a frequency of between about 5 and about 500 kHz. The magnetic field in the coil (10) is produced upon discharge of a capacitor (14). The capacitor is charged from a source (16) and when a switch (18) is closed, completing the circuit that includes the capacitor and the coil, an oscillating current is generated between the plates of the capacitor (14) which in turn generates an oscillating magnetic field which is concentrated within the region (20) bounded by the coil (10). The method can also be used to sterilize plastic materials including containers.

Abstract translation: 通过杀死或灭活微生物来消毒食物的方法，而不改变食物的味道或其他性质。 具有高电阻率的容器内或外部的食物设置在电磁线圈（10）内并经受强度为约2至约100特斯拉的振荡磁场的一个或多个脉冲，并且频率介于约 5和约500kHz。 线圈（10）中的磁场在电容器（14）放电时产生。 电容器从源极（16）充电，并且当开关（18）闭合时，完成包括电容器和线圈的电路，在电容器（14）的板之间产生振荡电流，这反过来产生 集中在由线圈（10）界定的区域（20）内的振荡磁场。 该方法也可用于消毒包括容器在内的塑料材料。

公开(公告)号：WO1997020331A1

公开(公告)日：1997-06-05

申请号：PCT/US1996018728

申请日：1996-11-22

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  STEVENSON, Robert, A.

IPC: H01G04/35

CPC classification number: H01G4/35 ,  A61N1/3754

Abstract: An improved capacitor is provided particularly for use in electromagnetic interference (EMI) filter applications, for example, in an implantable medical device such as a heart pacemaker or defibrillator, to accommodate relatively high pulse currents. The capacitor comprises a plurality of active and ground electrode plates (14, 16) interleaved and embedded within a dielectric casing of ceramic (12) or the like with each active and ground plate being defined by a closely spaced pair of conductive plate elements (22, 24) which significantly increase the total area of each electrode plate, and thereby correspondingly increase the current handling capacity of the capacitor.

Abstract translation: 提供了一种改进的电容器，特别用于电磁干扰（EMI）滤波器应用中，例如在诸如心脏起搏器或除颤器的可植入医疗装置中，以适应较高的脉冲电流。 电容器包括多个有源和接地电极板（14,16），其交错并嵌入在陶瓷（12）等的电介质外壳内，每个有源和接地板由紧密隔开的一对导电板元件（22 ，24），其显着增加每个电极板的总面积，从而相应地增加电容器的电流处理能力。

公开(公告)号：WO1993012907A1

公开(公告)日：1993-07-08

申请号：PCT/US1992010894

申请日：1992-12-16

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  CATES, Michael, Christopher ,  HAMM, Richard, Roy

IPC: B23K26/04

CPC classification number: G01N29/2418 ,  G01N2291/0423

Abstract: An automated system and method removes one or more layers (16, 18) of a material from a substrate (20). The substrate is irradiated with a light beam (12) having an intensity sufficient to ablate the materials in order to expose selected regions of the substrate. The ablated material generates photoacoustic signature signals (22). The structure is scanned with the light beam along a predetermined path at a scan speed; the photoacoustic signature signals are detected along the scan path, and an updated scan speed functionally related to the detected photoacoustic signals is determined. One embodiment of the invention exposes a selected layer of a multilayered structure in a process which includes irradiating the surface of multilayered structure by comparing representations of the photoacoustic pressure wave signals with a reference value corresponding to a photoacoustic signature signal of a layer of the structure selected to be exposed.

公开(公告)号：WO1983000562A1

公开(公告)日：1983-02-17

申请号：PCT/US1981001083

申请日：1981-08-13

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  CRICK, Robert, G.

IPC: G01R31/08

CPC classification number: G01R31/11

Abstract: A system for locating faults in an electric cable including a flyback transformer (112) or inductor and control circuitry (142, 144, 140, 136, 138, 126, 132, 122) therefor for developing an arc through a high resistance short circuit between two conductors or one conductor and ground. The control circuitry limits the current flow in the arc to avoid burning or welding of the conductors but maintains the current so that the high resistance short appears temporarily as a low resistance short which can be detected while the arc is present. A low level DC bias current stabilizes the system, particularly in the presence of large line capacitance when the distance between the apparatus and the cable fault is large. The circuitry includes an audible tone generator (86) which can be sensed by induction with known inductive pickup equipment. The circuit also allows use of a time domain reflectometer (134) to determine the location of high resistance shorts from a remote location on the cable to which connections can be made.

Abstract translation: 一种用于定位电缆中的故障的系统，包括回扫变压器（112）或电感器以及用于通过高电阻短路的控制电路（142,144,140,​​136,138,126,132,122） 两根导体或一根导体和地面。 控制电路限制了电流中的电流，以避免导体的燃烧或焊接，但是保持电流，使得高电阻短暂暂时出现为可在电弧存在时检测到的低电阻短路。 低电平直流偏置电流稳定系统，特别是当设备和电缆故障之间的距离较大时，存在大的线路电容。 该电路包括一个可听音调发生器（86），可以用已知的感应拾取设备感应感测。 该电路还允许使用时域反射计（134）来确定来自可进行连接的电缆上的远程位置的高电阻短路的位置。

公开(公告)号：WO1993012906A1

公开(公告)日：1993-07-08

申请号：PCT/US1992010936

申请日：1992-12-17

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  CATES, Michael, Christopher ,  HAMM, Richard, Roy ,  HOOGERWERF, John, David

IPC: B23K26/00

CPC classification number: B44D3/166 ,  B23K26/40 ,  B23K26/705 ,  B23K2103/172 ,  B23K2103/42 ,  B23K2103/50

Abstract: A method for removing material from a structure, comprising the steps of: (1) generating a light beam; (2) irradiating the surface material of a structure with the light beam having an intensity sufficient to ablate the surface material and to cause the surface material to generate spectral emission signals having intensities; (3) scanning the structure with the light beam at a scan speed; (4) monitoring the spectral emissions to detect a selected one of the spectral emission signals having a selected wavelength and generating an electronic output signal representative of the intensity of a selected one of the spectral emission signals in response to detecting the selected one of the spectral emission signals; (5) determining an updated scan speed functionally related to the electronic output signal; and (6) directing the scan speed to be equal to the updated scan speed. A second embodiment determines the updated scan speed based on the intensity of spectral emission signals detected during predetermined intervals while the structure is illuminated by the light source. A third embodiment determines an updated scan speed based on the intensity of spectral emission signals resulting from a laser pulse irradiating the structure when the output of the light beam is approximately at a minimum.

公开(公告)号：WO1993007625A1

公开(公告)日：1993-04-15

申请号：PCT/US1992008546

申请日：1992-10-07

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  HOWELLS, Malcolm, Richard

IPC: G21K05/00

CPC classification number: G03F7/70075 ,  G21K1/06

Abstract: A polished aspheric mirror (12) focusses a fan X-ray beam (16) from a point source (18) onto a workpiece (22) as a straight image line (20). The workpiece (22) can be efficiently exposed to the X-ray beam (16') by simply tilting the aspheric mirror (12) about a rotational axis (28), causing the focused image line (20) to sweep across the workpiece. The aspheric mirror is designed to collimate the beam in one direction, e.g., the horizontal direction, and focus the beam in the other direction, e.g., the vertical direction, thereby creating the focused image line (20) at the workpiece (22). The design process is achieved by a method that includes representing the mirror surface as at least a fourth order Maclaurin series polynomial, and by adjusting the coefficients of such Maclaurin series to create and maintain the desired straight image line. The mirror surface is then polished using computer controlled polishing techniques to realize the designed shape.

公开(公告)号：WO1992010921A1

公开(公告)日：1992-06-25

申请号：PCT/US1991009034

申请日：1991-12-03

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  MISCIKOWSKI, Gary, Ralph ,  BRISCOE, Joseph, Mervin

IPC: H05G01/06

CPC classification number: H05G1/54 ,  H01C1/14 ,  H01C3/16 ,  H05G1/08

Abstract: A protection arrangement for a high voltage tube includes a low inductance disk resistor connected in series with the anode of the tube. When an electrical discharge occurs within the tube, the increase anode current flows through the resistor which absorbs much of the potentially harmful energy surge. The resistor is a disk resistor comprising two counter-wound planar spirals of resistance wire electrically connected in parallel and counter-wound with respect to one another. Connection arrangements are provided to both electrically and mechanically connect the resistor to the high voltage tube.

公开(公告)号：WO1988003763A1

公开(公告)日：1988-06-02

申请号：PCT/US1986002555

申请日：1986-11-26

Applicant: MAXWELL LABORATORIES, INC.

Inventor： MAXWELL LABORATORIES, INC. ,  DUNN, Joseph, Edward ,  PEARLMAN, Jay, S.

IPC: A23L03/32

CPC classification number: A23L3/22 ,  A23C3/0335 ,  A23L2/48 ,  A23L3/32 ,  C02F1/46 ,  C02F1/4608 ,  C02F2201/46175

Abstract: Methods and apparatus for preserving fluid food products by subjecting the fluid foodstuffs such as dairy products, fruit juices and fluid egg products to controlled, pulsed, high voltage electric field treatment. An electric food processing system includes a storage food reservoir (100) for the liquid food to be treated, an inline heating unit (102), a deaeration apparatus (104) having a vacuum system (106) and an electric field treatment cell (108) in which the electric field treatment of the liquid foodstuff is carried out.