Selective gas sensor
    1.
    发明授权
    Selective gas sensor 失效
    选择性气体传感器

    公开(公告)号:US5689059A

    公开(公告)日:1997-11-18

    申请号:US696550

    申请日:1996-08-14

    IPC分类号: G01N25/28 G01N33/00 G01N7/00

    摘要: A selective gas sensor (10) for detecting a particular compound, or group of compounds, such as non-methane hydrocarbons, within a high temperature gas stream (12) includes an oxygen generation system (14) positioned over an oxygen diffusion region (15). The oxygen generation system (14) and the oxygen diffusion region (15) provide oxygen through a medial temperature control zone (20) to a sensing element (16). The temperature and flux of hydrocarbon components within the high temperature gas stream (12) are regulated by components within the high temperature control zone (20) and by an external temperature control zone (22) in thermal contact with the sensing element (16).

    摘要翻译: 用于在高温气流(12)内检测特定化合物或一组化合物(例如非甲烷烃)的选择性气体传感器(10)包括位于氧扩散区(15)上方的氧气产生系统(14) )。 氧气产生系统(14)和氧气扩散区域(15)通过内部温度控制区(20)向感测元件(16)提供氧气。 高温气流(12)内的烃组分的温度和流量由高温控制区(20)内的组分和与感测元件(16)热接触的外部温度控制区(22)调节。

    Calorimetric hydrocarbon gas sensor
    2.
    发明授权
    Calorimetric hydrocarbon gas sensor 失效
    量热烃气体传感器

    公开(公告)号:US5989398A

    公开(公告)日:1999-11-23

    申请号:US970837

    申请日:1997-11-14

    摘要: A calorimetric hydrocarbon gas sensor (10) includes an electrochemical oxygen pump (18), a sensing element (12), and a multi-layered substrate (26) separating the sensing element (12) from the electrochemical oxygen pump (18). The multi-layered substrate (26) includes a plurality of overlying insulating layers, in which at least one intermediate layer (60) supports a first primary heater (58), and in which another intermediate layer (52) supports a temperature compensation heaters (50a, 50b). The primary heater (58) functions to maintain the calorimetric hydrocarbon gas sensor (10) at a constant, elevated temperature, while the active compensation heater (50a) functions to maintain substantially equal temperatures as determined by the thermometers (46a, 46b) located on an intermediate layer (48) overlying the compensation heaters (50a, 50b). Control circuitry is integrated with power measurement circuitry to measure differences in the heat produced by the compensation heater (50a) and the thermometer (46a) in an active region (100), and the heat produced by the compensation heater (50b) and the thermometer (46b) in a reference region (102).

    摘要翻译: 量热烃气体传感器(10)包括电化学氧气泵(18),感测元件(12)和将感测元件(12)与电化学氧气泵(18)分开的多层衬底(26)。 多层基板(26)包括多个上覆绝缘层,其中至少一个中间层(60)支撑第一主加热器(58),并且其中另一中间层(52)支撑温度补偿加热器 50a,50b)。 主加热器(58)用于将量热烃气体传感器(10)保持在恒定的升高的温度,而有源补偿加热器(50a)用于维持基本上相同的温度,由温度计(46a,46b) 覆盖补偿加热器(50a,50b)的中间层(48)。 控制电路与功率测量电路集成,以测量补偿加热器(50a)和活动区域(100)中的温度计(46a)产生的热量的差异,以及补偿加热器(50b)和温度计 (46b)在参考区域(102)中。

    Process for protecting a surface using silicate compounds
    3.
    发明授权
    Process for protecting a surface using silicate compounds 失效
    使用硅酸盐化合物保护表面的方法

    公开(公告)号:US5672390A

    公开(公告)日:1997-09-30

    申请号:US407316

    申请日:1995-03-20

    摘要: A process for forming a protective layer on a rigid surface, such as a metal or wood surface, to provide protection against abrasion, corrosion, heat and fire. The process comprises first preparing the surface of the article. On metal articles, the surface can be prepared by cleaning the surface and then exposing the surface to concentrated phosphoric acid. On wood, the surface can be prepared by thoroughly cleaning the surface with hot water and detergent only. Preferably, the surface is prepared such that a uniform, continuous layer of liquid can be formed thereon. After the surface is prepared, a 10-16% (v/v) silicate-containing solution is then applied for 20 seconds and allowed to dry completely at 305.degree. F. to form a layer of silicate material over the surface. During the drying process, at least a portion of the sodium silicate is converted into silicon dioxide. An acid is then applied to the surface to form the protective layer on the surface.

    摘要翻译: 在刚性表面(例如金属或木材表面)上形成保护层的方法,以提供防止磨损,腐蚀,热和火的保护。 该方法包括首先制备制品的表面。 在金属制品上,表面可以通过清洁表面然后将表面暴露于浓磷酸来制备。 在木材上,表面可以通过用热水和洗涤剂彻底清洁表面来制备。 优选地,制备表面使得可以在其上形成均匀的连续的液体层。 制备表面后,将10-16%(v / v)含硅酸盐溶液施加20秒,并使其在305°F完全干燥,以在表面上形成一层硅酸盐材料。 在干燥过程中,将至少一部分硅酸钠转化为二氧化硅。 然后将酸施加到表面以在表面上形成保护层。

    System and method for estimating tailpipe a emissions in a vehicle
    4.
    发明授权
    System and method for estimating tailpipe a emissions in a vehicle 失效
    用于估计尾气排放的车辆的系统和方法

    公开(公告)号:US5916294A

    公开(公告)日:1999-06-29

    申请号:US903892

    申请日:1997-07-31

    IPC分类号: F01N11/00 G01M15/00

    摘要: A system and method estimates tailpipe emissions by sensing (703) a catalyzed gas stream (506) and providing a total-combustible gas signal (511) dependent thereon. The total-combustible gas signal (511) has a magnitude comprised of a first portion, dependent on a concentration of the hydrocarbon gas in the catalyzed gas stream (506), and a second portion, dependent on a concentration of the other combustible gasses in the catalyzed gas stream (506). A magnitude relationship between the first portion and the second portion is variable when the catalyzed gas stream (506) transitions into a region on the rich side of stoichiometry. The variability the magnitude relationship of the first and second portions is filtered out so that the magnitude relationship is substantially constant when the catalyzed gas stream (506) transitions into the region on the rich side of stoichiometry. The filtered signal is then integrated and compared to a threshold and an out-of-compliance signal (523) is provided when the filtered integrated signal (519) exceeds the threshold.

    摘要翻译: 系统和方法通过感测(703)催化气流(506)并提供依赖于其的总可燃气体信号(511)来估计尾管排放。 总可燃气体信号(511)具有取决于催化气体流(506)中的烃气体的浓度的第一部分以及第二部分,其取决于其它可燃气体的浓度 催化气流(506)。 当催化气流(506)转变成化学计量浓的一侧的区域时,第一部分和第二部分之间的大小关系是可变的。 过滤出第一和第二部分的幅度关系的变化性,使得当催化气流(506)转变到化学计量浓的一侧的区域时,幅度关系基本上是恒定的。 然后,经滤波的信号被积分并与阈值进行比较,并且当滤波的积分信号(519)超过阈值时,提供不合规信号(523)。

    Method and apparatus for time domain reflectometry moisture sensing in various media
    5.
    发明授权
    Method and apparatus for time domain reflectometry moisture sensing in various media 失效
    用于各种介质中时域反射测湿法的方法和装置

    公开(公告)号:US06441622B1

    公开(公告)日:2002-08-27

    申请号:US09641786

    申请日:2000-08-18

    IPC分类号: G01R2732

    摘要: A method and apparatus for time domain reflectometry sensing of moisture in a test material. The sensor (200) having a generally helical shaped electrode (206) and at least one secondary electrode (208) spaced apart from the generally helical shaped electrode (206) to enable the test material to be present in the space (210) between the helical shaped electrode (206) and the secondary electrode (208). A wave pulse generator (202) is coupled to the generally helical shaped electrode (206) and the secondary electrode (208) that results in a reflection of the generated wave from the wave pulse generator (202). Additionally, a reflected pulse detector (204) is coupled to the generally helical shaped electrode (206) and the secondary electrode (208), in which the reflected wave pulse detector (204) receives a reflected wave pulse from the wave pulse generator (202). A controller that activates the wave pulse generator (202) also controls a counter (114) that records the delay between the generated wave pulse and reflected wave pulse from which the moisture content of the test material (212) is determined.

    摘要翻译: 用于时域反射测量测试材料中水分的方法和装置。 传感器(200)具有大致螺旋状的电极(206)和与大致螺旋状的电极(206)间隔开的至少一个次级电极(208),以使测试材料能够存在于空间(210)之间 螺旋形电极(206)和次级电极(208)。 波形脉冲发生器(202)耦合到导致来自波形脉冲发生器(202)的所产生的波的反射的大致螺旋状的电极(206)和次级电极(208)。 此外,反射脉冲检测器(204)耦合到大致螺旋状的电极(206)和次级电极(208),其中反射波脉冲检测器(204)从波形脉冲发生器(202)接收反射波脉冲 )。 激活波形脉冲发生器(202)的控制器还控制计数器(114),该计数器记录产生的波形脉冲与确定测试材料(212)的水分含量的反射波脉冲之间的延迟。

    Sensor housing for a calorimetric gas sensor
    6.
    发明授权
    Sensor housing for a calorimetric gas sensor 失效
    用于量热气体传感器的传感器外壳

    公开(公告)号:US6015533A

    公开(公告)日:2000-01-18

    申请号:US970698

    申请日:1997-11-14

    IPC分类号: G01N1/22 G01N33/00 G01N7/00

    CPC分类号: G01N33/0009 G01N2001/2285

    摘要: A sensor housing (10) for directing the flow of a gas over two sensitive regions (53, 54) of sensing device (52) includes an inner shroud (12) surrounding the sensing device (52). The inner shroud (12) is inserted into an outer shroud (14), such that a plurality of gas channels (44) are formed between the inner shroud (12) and the outer shroud (14). In operation, a gas enters through inlet orifices (28) in the outer shroud (14) and travels through the gas channels (44) to the proximal end (26) of the inner shroud (12). The flow direction of the gas is then reversed and the gas passes through an inner chamber (50) and over sensitive regions (53), (54) located on the surface of the sensing device (52). Vacuum pressure created at an outlet hole (46) located at a distal end (35) of the outer shroud (14) draws the gas out of the inner chamber (50) and return the gas to the exterior of the sensor housing (10).

    摘要翻译: 用于将气体流引导到感测装置(52)的两个敏感区域(53,54)上的传感器外壳(10)包括围绕感测装置(52)的内护罩(12)。 内护罩(12)插入外护罩(14)中,使得在内护罩(12)和外护罩(14)之间形成多个气体通道(44)。 在操作中,气体通过外护罩(14)中的入口孔(28)进入,并且穿过气体通道(44)移动到内护罩(12)的近端(26)。 然后气体的流动方向被反转,并且气体通过位于感测装置(52)的表面上的内室(50)和敏感区域(53),(54)。 在位于外护罩(14)的远端(35)处的出口孔(46)处产生的真空压力将气体从内腔(50)中抽出并将气体返回到传感器壳体(10)的外部, 。

    Process of protecting metallic and wood surfaces using silicate compounds
    7.
    发明授权
    Process of protecting metallic and wood surfaces using silicate compounds 失效
    使用硅酸盐化合物保护金属和木材表面的工艺

    公开(公告)号:US5205874A

    公开(公告)日:1993-04-27

    申请号:US704125

    申请日:1991-05-22

    摘要: A process for forming a protective barrier on metallic or wood surfaces to provide protection against abrasion, corrosion, heat, and fire. The process is begun by first forming a fixed surface on the metallic or wood article. On metallic articles, the fixed surface is formed by cleaning the surface and then exposing the surface to concentrated phosphoric acid. On wood, the fixed surface is formed by thoroughly cleaning the surface with hot water and detergent only. After the fixed surface is prepared, it is then exposed to a 10-16% silicate salt for at least one minute and then allowed to dry completely at 305 degrees Fahrenheit to form a first layer of silicate salt over the fixed surface. During the drying process, a portion of the sodium silicate is converted into silicon dioxide. A plurality of sodium silicate layers are then formed over the first layer of sodium silicate. After the last layer of sodium silicate is formed, it is then exposed to concentrated phosphoric acid to form a bi-layer thereon comprised of an inner layer of sodium silicate and an outer layer of silicon dioxide. In an alternative method, each sodium silicate layer is exposed to concentrated phosphoric acid to create a plurality of bi-layers over the fixed surface.

    摘要翻译: 在金属或木材表面上形成保护屏障以提供防止磨损,腐蚀,发热和起火的保护的方法。 该过程首先在金属或木制品上形成固定表面。 在金属制品上,通过清洁表面然后将表面暴露于浓磷酸形成固定表面。 在木材上,固定表面通过用热水和洗涤剂彻底清洁表面而形成。 在制备固定表面后,然后将其暴露于10-16%硅酸盐盐至少1分钟,然后在305华氏度下完全干燥,在固定表面上形成第一层硅酸盐。 在干燥过程中,将一部分硅酸钠转化为二氧化硅。 然后在第一层硅酸钠上形成多个硅酸钠层。 在形成最后一层硅酸钠之后,然后将其暴露于浓磷酸以形成由硅酸钠内层和二氧化硅外层组成的双层。 在替代方法中,将每个硅酸钠层暴露于浓磷酸以在固定表面上产生多个双层。

    System for preventing accidental or unauthorized firing of a firearm
    8.
    发明授权
    System for preventing accidental or unauthorized firing of a firearm 失效
    防止意外或未经授权射击枪支的系统

    公开(公告)号:US06895707B2

    公开(公告)日:2005-05-24

    申请号:US10630266

    申请日:2003-07-30

    申请人: Daniel A. Young

    发明人: Daniel A. Young

    IPC分类号: F41A17/44

    CPC分类号: F41A17/44

    摘要: A firearm locking device increases firearm safety and security. A receiver cartridge shaped and sized with same caliber as firearm is loaded into bullet chamber. A barrel rod is removably engaged to the receiver cartridge and protrudes from the end of firearm barrel. Protruding end serves as fast visual indicator that firearm is unloaded and safe to handle, store, or display. A light pull on protruding end also serves as indicator that firearm is unloaded and safe. A lock and cable serve to lock the barrel rod to firearm's trigger guard to prevent removal of barrel rod from barrel.

    摘要翻译: 枪支锁定装置提高了枪支的安全性和安全性。 形状和尺寸与火器相同口径的接收器盒装载到子弹室中。 枪杆可拆卸地接合到接收器盒并从枪械枪管的端部突出。 突出端作为快速视觉指示器,枪支卸载和安全处理,存储或显示。 突出端的轻拉也可作为枪支卸载和安全的指示器。 锁和电缆用于将枪管锁定到枪支的扳机护罩上,以防止枪管从枪管中取出。

    System and method for measuring hydrocarbon conversion efficiency of a
catalytic converter
    9.
    发明授权
    System and method for measuring hydrocarbon conversion efficiency of a catalytic converter 失效
    用于测量催化转化器烃转化效率的系统和方法

    公开(公告)号:US5941928A

    公开(公告)日:1999-08-24

    申请号:US903848

    申请日:1997-07-31

    IPC分类号: F01N11/00 F01N3/20 G01M15/00

    摘要: A system and method measures hydrocarbon conversion efficiency of a catalytic converter (501). Total-combustible sensors (511, 521) are positioned to measure exhaust gas on both sides of the catalytic converter (501). Signals from these sensors (511, 521) have a magnitude comprised of a first portion, dependent on a concentration of the hydrocarbon gas in the gas stream, and a second portion, dependent on a concentration of the other combustible gasses in the gas stream, where a magnitude relationship between the first portion and the second portion is variable when the gas stream transitions into a region on the rich side of stoichiometry. The signals from these sensors (511, 521) are filtered so that a magnitude relationship between a first and second portion of the filtered signals is constant when the gas stream (506) transitions into the region on the rich-side of stoichiometry. Hydrocarbon conversion efficiency (529) is computed dependent on the filtered signals (515, 525).

    摘要翻译: 一种系统和方法测量催化转化器(501)的烃转化效率。 总燃烧传感器(511,521)被定位成测量催化转化器(501)两侧的废气。 来自这些传感器(511,521)的信号具有取决于气流中的烃气体的浓度的第一部分和取决于气流中的其他可燃气体的浓度的第二部分的大小, 其中当气流转变成化学计量浓的一侧的区域时,第一部分和第二部分之间的大小关系是可变的。 来自这些传感器(511,521)的信号被滤波,使得当气流(506)转变到化学计量浓度的区域中时,经滤波的信号的第一和第二部分之间的大小关系是恒定的。 烃转化效率(529)根据滤波信号(515,525)计算。

    Clarifier apparatus
    10.
    发明授权
    Clarifier apparatus 失效
    澄清器

    公开(公告)号:US3951806A

    公开(公告)日:1976-04-20

    申请号:US516310

    申请日:1974-10-18

    申请人: Daniel A. Young

    发明人: Daniel A. Young

    摘要: Apparatus for feeding the raw influent water into a center post clarifier including an uptake zone defined around the center post forming an eductor tube having an upper and lower end respectively in communication with an upper and lower portion of the mixing and recirculation chamber. A first set of openings is provided intermediate the center post for directing the flow of raw water upwardly into an intermediate portion of the uptake zone. A second set of openings positioned above the first set of openings is provided for directing the remaining flow of raw water from the center post into an upper portion of the uptake zone. The relative flow rates of raw water through the first and second openings being such as to cause sludge which has accumulated adjacent the lower end of the uptake zone to be lifted therein to and recirculated with the raw water. Means are provided to selectively control the flow rates of raw water through the first and second openings to adjust the sludge recirculation rate.

    摘要翻译: 用于将原始流入水进料到中心柱澄清器中的装置,包括围绕中心柱限定的吸收区,形成具有分别与混合和再循环室的上部和下部连通的上端和下端的喷射管。 第一组开口设置在中心柱之间,用于将原水流向上引导到吸收区的中间部分。 设置位于第一组开口上方的第二组开口用于将剩余的原水从中心柱引导到吸收区的上部。 通过第一和第二开口的原水的相对流速使得在邻近吸收区的下端附近积聚的污泥被提升到原水中并与原水再循环。 提供了用于选择性地控制通过第一和第二开口的原水的流量以调节污泥再循环速率的装置。