公开(公告)号：WO1997034141A1

公开(公告)日：1997-09-18

申请号：PCT/US1997003289

申请日：1997-03-02

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  SCHNEIDER, Alan, A. ,  SCHEFFLER, Towner, B. ,  DAVIS, Brian, K.

IPC: G01N27/49

CPC classification number: G01N27/404 ,  G01N27/4045

Abstract: The present invention provides a low-cost alternative to currently available electrochemical sensors. In general, the present invention provides an electrochemical sensor for the detection of an analyte comprising a first metallic housing member and a second metallic housing member. The first metallic housing member and the second metallic housing member are brought together in sealed connection to create a sealed enclosure therebetween. Contained within the enclosure are a first electrode, at which the analyte reacts, and a second electrode, at which a reaction complimentary to the reaction of the analyte at the first electrode takes place. An acidic electrolyte is also contained within the enclosure of the first metallic housing member and the second metallic housing member.

Abstract translation: 本发明提供了当前可用的电化学传感器的低成本替代方案。 通常，本发明提供了用于检测包括第一金属外壳构件和第二金属外壳构件的分析物的电化学传感器。 第一金属外壳构件和第二金属外壳构件被密封连接在一起以在它们之间形成密封的外壳。 包含在外壳内的是分析物反应的第一电极和在第一电极发生与分析物的反应相互作用的反应的第二电极。 酸性电解质也包含在第一金属外壳构件和第二金属外壳构件的外壳内。

公开(公告)号：WO1997049841A1

公开(公告)日：1997-12-31

申请号：PCT/US1997010530

申请日：1997-06-16

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  CORELLA, Joseph, A., II ,  NEIGH, Kevin, M.

IPC: C23C22/63

CPC classification number: H05K3/385 ,  C01G3/02 ,  C01P2006/60 ,  C23C22/63 ,  C23C22/83 ,  H05K2203/0315 ,  H05K2203/1157

Abstract: The present invention provides a method of reducing copper oxide to improve its acid resistance comprising the step of reacting cupric oxide with a reducing agent selected from the group consisting of morpholine borane, ethylene diamine borane, ethylene diamine bisborane, t-butylamine borane, piperazine borane, imidazole borane, and methoxyethylamine borane to form cuprous oxide.

Abstract translation: 本发明提供一种减少氧化铜以提高其耐酸性的方法，包括使氧化铜与选自吗啉硼烷，乙二胺硼烷，乙二胺双硼烷，叔丁胺硼烷，哌嗪硼烷的还原剂反应的步骤 ，咪唑硼烷和甲氧基乙胺硼烷形成氧化亚铜。

公开(公告)号：WO1997038302A1

公开(公告)日：1997-10-16

申请号：PCT/US1997005641

申请日：1997-04-04

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  PERTINARIDES, John, M., A. ,  TARASSOV, Alexandre, S. ,  CARNAHAN, Byron, L. ,  PIPICH, Charles, W. ,  KOUZNETSOV, Viktor ,  UBER, Robert, E.

IPC: G01N27/64

CPC classification number: G01N27/622

Abstract: Generally, the present invention provides a recirculating filtration system for use with a transportable ion mobility spectrometer. A first preferred embodiment of the transportable recirculating filtration system comprises a pump connected with a set of filters and flow sensors to an IMS sensor. The IMS sensor's outlet flow is cleaned by the filters and recirculated by the pump back into the IMS sensor as the carrier fluid stream flow. A portion of the IMS sensor's outlet flow equal to the amount of flow introduced into the sensor is exhausted from the filtration system to maintain a constant total flow volume through the system as the sample is being taken. A second preferred embodiment of the present invention provides a transportable recirculating filtration system for measuring an unknown concentration of a selected ionizable contaminant substance such as benzene present in which other substances may coexist, which employs a device for introducing a controlled concentration of the selected ionizable contaminant into an ion mobility spectrometry (IMS) sensor. The unknown concentration is calculated using the Standard Addition Method. The second preferred embodiment of the present invention can also be used to calibrate the IMS sensor by establishing which ionogram structures result from the presence of a particular analyte in the sample stream. A third preferred embodiment of the present invention provides a recirculating filtration system for use with a transportable ion mobility spectrometer in gas chromatography applications. The transportable recirculating filtration system comprises a pump and a set of filters and flow sensors connected to an ion mobility spectrometry sensor having a gas chromatograph column at its inlet.

Abstract translation: 通常，本发明提供了一种与可运输的离子迁移谱仪一起使用的再循环过滤系统。 可运输循环过滤系统的第一优选实施例包括与一组过滤器和流量传感器连接到IMS传感器的泵。 IMS传感器的出口流被过滤器清洁，并随着载体流体流的流动而被泵再循环回到IMS传感器中。 IMS传感器的出口流量的一部分等于引入传感器的流量从过滤系统中排出，以保持在采集样品时通过系统的恒定总流量。 本发明的第二优选实施方案提供了一种用于测量可选择的可电离污染物质（例如存在的其它物质可能共存的苯）的未知浓度的可运输循环过滤系统，其使用用于引入受控浓度的所选择的可电离污染物 进入离子迁移光谱（IMS）传感器。 使用标准加成法计算未知浓度。 本发明的第二优选实施例也可以用于通过确定由样品流中的特定分析物的存在而产生的离子图结构来校准IMS传感器。 本发明的第三优选实施方案提供了一种在气相色谱应用中与可运输离子迁移谱仪一起使用的再循环过滤系统。 可运输的循环过滤系统包括泵和一组连接到其入口处具有气相色谱柱的离子迁移谱传感器的过滤器和流量传感器。

公开(公告)号：WO1996018885A1

公开(公告)日：1996-06-20

申请号：PCT/US1995016495

申请日：1995-12-14

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  CHAMPNEY, Richard, Edward, Jr.

IPC: G01N25/22

CPC classification number: G01N27/16

Abstract: A microminiature combustible gas sensor and a method of fabricating a microminiature combustible gas sensor are provided in which the catalytically active detector comprises a high surface area refractory catalyst support. A microminiature combustible gas sensor is also provided which comprises a catalytically active detector and a diffusion/flow restrictor for limiting the amount of combustion fuel reaching the catalytically active detector. The restrictor causes the catalytic reaction occurring in the vicinity of the catalytically active detector element to become substantially diffusion limited and reduces the power requirements of the sensor. The restrictor also reduces convective heat losses which may arise because of the large temperature gradient surrounding the catalytically active detector element. Finally, a microminiature combustible gas sensor comprising a flashback arrestor with one or more generally linear capillaries for preventing flashback is provided.

Abstract translation: 提供微型可燃气体传感器和制造微型可燃气体传感器的方法，其中催化活性检测器包括高表面积的耐火催化剂载体。 还提供了一种微型可燃气体传感器，其包括催化活性检测器和用于限制到达催化活性检测器的燃烧燃料量的扩散/限流器。 限流器导致在催化活性检测器元件附近发生的催化反应变得基本上扩散受限并且降低了传感器的功率需求。 限流器还减少了由于围绕催化活性检测器元件的大的温度梯度而可能产生的对流热损失。 最后，提供一种微型可燃气体传感器，其包括具有一个或多个通常线性的毛细管的防回火器，用于防止回火。

公开(公告)号：WO1998019068A1

公开(公告)日：1998-05-07

申请号：PCT/US1997018659

申请日：1997-10-16

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  IMBLUM, Gregory, G. ,  ETHERIDGE, Charles, H. ,  FRANK, William, R.

IPC: F04B49/06

CPC classification number: F04B49/06 ,  F04B2203/0202 ,  F04B2203/0209

Abstract: The present invention provides a system and a method for controlling and detecting faults in a pump system for use in a gas detection device. The system comprises a power source and a switch in operative or electrical connection with the power source. The system further comprises a pump motor in operative connection with the switch such that the pump motor receives energy from the power source when the switch in a first state, and the pump motor does not receive energy from the power source when the switch in a second state. The system preferably also comprises regeneration circuitry in operative connection with the pump motor. The regeneration circuitry operates to redirect energy produced from momentum of the pump motor while the switch is in the second state back to the pump motor. Transmitting circuitry is preferably provided to transmit a motor signal proportional to the speed of the pump motor during the second state of the switch. Preferably, the switch is modulated between the first state and the second state using a processing or control unit such as a microprocessor. The processing unit preferably controls the modulation of switch in response to the motor signal received from the transmitting circuitry.

Abstract translation: 本发明提供一种用于控制和检测用于气体检测装置的泵系统中的故障的系统和方法。 该系统包括电源和与电源工作或电连接的开关。 该系统还包括与开关可操作地连接的泵马达，使得当开关处于第一状态时，泵马达接收来自电源的能量，并且当电动机处于第二状态时，泵电机不接收来自电源的能量 州。 该系统还优选地还包括与泵马达有效连接的再生电路。 再生电路用于将开关处于第二状态的泵马达的转向由泵马达的动量产生的能量重新定向。 优选地，提供传输电路以在开关的第二状态期间传输与泵电动机的速度成比例的电动机信号。 优选地，使用诸如微处理器的处理或控制单元在第一状态和第二状态之间调制开关。 处理单元优选地响应于从发送电路接收的电动机信号来控制开关的调制。

公开(公告)号：WO1998017996A1

公开(公告)日：1998-04-30

申请号：PCT/US1997019466

申请日：1997-10-20

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  HANCE, Glen, W. ,  SCHEFFLER, Towner, B. ,  SCHNEIDER, Alan, A.

IPC: G01N27/49

CPC classification number: G01N27/4045

Abstract: The present invention provides electrochemical sensors for the detection of nitrogen dioxide and a method of use thereof. The electrochemical gas sensors comprise a housing in which is disposed a working electrode, a reference electrode and a counter electrode. The electrochemically active surface of the working electrode preferably comprises gold. Electrical connection is maintained between the working electrode and the counter electrode via an electrolyte present within the housing. The nitrogen dioxide electrochemical sensors of the present invention are particularly well suited for use in medical environments, in part, because of their insensitivity to numerous interferent gases found in medical environments.

Abstract translation: 本发明提供了用于检测二氧化氮的电化学传感器及其使用方法。 电化学气体传感器包括壳体，其中设置有工作电极，参考电极和对电极。 工作电极的电化学活性表面优选包含金。 通过存在于壳体内的电解质在工作电极和对电极之间保持电连接。 本发明的二氧化氮电化学传感器特别适用于医疗环境，部分原因是因为它们对在医疗环境中发现的许多干扰气体不敏感。

公开(公告)号：WO1998009674A1

公开(公告)日：1998-03-12

申请号：PCT/US1997015672

申请日：1997-09-05

Applicant: MINE SAFETY APPLIANCES COMPANY ,  WISE, Layton, A.

Inventor： MINE SAFETY APPLIANCES COMPANY

IPC: A61M15/00

CPC classification number: A62B21/00 ,  A62B7/08

Abstract: A closed circuit breathing apparatus (10) comprising: a housing (12), a chlorate candle (21), a mouthpiece (45), and a breathing bag (30).

Abstract translation: 一种闭路呼吸器（10），包括：壳体（12），氯酸盐蜡烛（21），吸嘴（45）和呼吸袋（30）。

公开(公告)号：WO1997034142A1

公开(公告)日：1997-09-18

申请号：PCT/US1997003581

申请日：1997-03-07

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  SCHEFFLER, Towner, B. ,  JOLSON, Joseph, D.

IPC: G01N27/49

CPC classification number: G01N27/4045

Abstract: Accordingly, the present invention provides an electrochemical sensor comprising at least two electrochemically active electrodes, a non-aqueous electrolyte system and a diffusion barrier membrane through which the analyte in its gas phase is mobile but through which the non-aqueous electrolyte system is substantially immobile. The diffusion barrier membrane thus allows an analyte in its gas phase to enter the sensor, while substantially preventing the non-aqueous electrolyte from exiting the sensor.

Abstract translation: 因此，本发明提供了一种电化学传感器，其包括至少两个电化学活性电极，非水电解质系统和扩散阻挡膜，通过该扩散阻挡膜，气相中的分析物是可移动的，而非水电解质系统通过该电解质系统基本上不可移动 。 因此，扩散阻挡膜允许其气相中的分析物进入传感器，同时基本上防止非水电解质离开传感器。

公开(公告)号：WO1997019726A3

公开(公告)日：1997-06-05

申请号：PCT/US1996019262

申请日：1996-11-27

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  WISE, Layton, A. ,  FRANK, Peter, A.

IPC: A62B09/00

公开(公告)号：WO1996040370A1

公开(公告)日：1996-12-19

申请号：PCT/US1996006619

申请日：1996-05-09

Applicant: MINE SAFETY APPLIANCES COMPANY

Inventor： MINE SAFETY APPLIANCES COMPANY ,  FREUND, Paul, X.

IPC: A62B18/02

CPC classification number: A62B18/025

Abstract: The present invention provides a respirator mask (figure 1) having a very soft, compliant facepiece (10) that has several stiffening elements (20, 30 and 40) integrated therein. The respirator mask preferably includes an exhalation valve and a pair of filter cartridges. It also has a yolk (62) which complements the facepiece (10) and provides for attachment of a harness (70) to secure the respirator mask to the user's face. The respirator mask is lightweight and extremely comfortable due to the novel facepiece (10) made of three stiffening elements (20, 30 and 40) which are completely surrounded by and bonded to a flexible material (50).

Abstract translation: 本发明提供一种具有非常柔软的柔顺面罩（10）的呼吸面罩（图1），其具有集成在其中的几个加强元件（20,30和40）。 呼吸面罩优选包括呼气阀和一对过滤器滤芯。 它还具有补充面罩（10）的蛋黄（62），并提供用于将呼吸面罩（70）固定到使用者脸部的安全带（70）。 由于由柔性材料（50）完全包围并结合到其上的三个加强元件（20,30和40）制成的新型面罩（10），所述呼吸面罩是轻质的并且非常舒适。