专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5350565A System for the detection of noxious contaminants in beverage and potable water containers 失效
标题翻译：用于检测饮料和饮用水容器中有害污染物的系统
公开(公告)号：US5350565A
公开(公告)日：1994-09-27
申请号：US987897
申请日：1992-12-03
申请人： Richard C. Leveson , John D. Laslavic , Nicholas J. Barker
发明人： Richard C. Leveson , John D. Laslavic , Nicholas J. Barker
IPC分类号： G01N1/14 , G01N21/33 , G01N21/90 , G01N21/94 , G01N33/00 , G01N35/02 , G01N21/01 , B07C5/10 , G01N21/47
CPC分类号： G01N21/9081 , G01N21/9018 , G01N35/025 , G01N2001/1445 , G01N2033/0081 , G01N21/33 , G01N21/94 , Y10T436/173845 , Y10T436/175383
摘要： A device for detecting contaminants in returned bottles, particularly in a high-speed bottle line, is disclosed. In the preferred embodiment, a sample chamber is rotated on a carousel unit between top and bottom bulkheads. The surfaces of the bulkheads facing the chamber are flat and substantially parallel, and the chamber has two open ends which face the two bulkheads, respectively. A blast of air is directed into the mouth of the bottle to be sampled, forcing the contents of the bottle through an aperture in the lower bulkhead and into the sample chamber. In the preferred embodiment, the analyzer contains a UV absorption analyzer and a photoionization detector. The carousel unit contains four sample chambers which rotate between a sampling station, the two detectors, and a purge station. The analyzer is controlled by a computer which issues a reject instruction to a bottle reject mechanism if the level of contaminants detected by either detector exceeds a predetermined threshold. In an alternative embodiment, the level of chemically-bound ammonium radicals is detected by analyzing the same sample twice with one or two photoionization detectors. An alkaline substance is added to the sample between the measurements. Since the combination of an alkaline substance and ammonium radicals will free ammonia gas, a substantially higher reading during the second analysis indicates the presence of ammonium radicals.
摘要翻译：公开了一种用于检测返回的瓶子中的污染物的装置，特别是在高速瓶子管线中的污染物。在优选实施例中，样品室在顶部和底部舱壁之间的转盘单元上旋转。面向腔室的隔壁的表面是平坦的并且基本上平行，并且腔室具有分别面对两个隔板的两个开口端。空气吹入瓶子的口中进行取样，迫使瓶子的内容物通过下隔板的孔口进入样品室。在优选实施例中，分析仪含有UV吸收分析仪和光电离检测器。转盘单元包含四个样品室，其在采样站，两个检测器和吹扫站之间旋转。如果由任一检测器检测到的污染物的水平超过预定阈值，则分析器由计算机控制，该计算机向拒收机构发出拒绝指令。在替代实施方案中，通过用一个或两个光电离检测器分析相同的样品两次来检测化学结合的铵基的水平。在测量之间向样品中加入碱性物质。由于碱性物质和铵自由基的组合将游离氨气，所以在第二次分析期间显着更高的读数表明存在铵自由基。

2. 发明授权

US5197192A Method of making a fluid control valve 失效
标题翻译：制造流体控制阀的方法
公开(公告)号：US5197192A
公开(公告)日：1993-03-30
申请号：US815012
申请日：1991-12-26
申请人： David A. Wylie , Richard C. Leveson , Paul C. P. Thomson , Donald S. N. Bray
发明人： David A. Wylie , Richard C. Leveson , Paul C. P. Thomson , Donald S. N. Bray
IPC分类号： F16K7/17 , G01N1/00 , G01N30/20
CPC分类号： G01N35/1097 , F16K7/17 , G01N30/20 , G01N2030/205 , Y10T29/49412 , Y10T29/49416 , Y10T29/49423
摘要： A fluid flow control valve for use with chemical fluids where avoidance of contaminants is important, is provided. The valve has a flow control chamber divided into an analytical section and a driver section by a metallic foil membrane operating member, clamped between the peripheral rim of the chamber and the upper wall. The foil membrane is movable in response to driver fluid pressure between open and closed positions. The upper portion of the rim which engages the membrane is of relatively small surface area, and is made of a softer material than that from which the membrane and the upper wall are constructed, .about. thereby providing a very effective means of sealing the membrane periphery to the upper wall when tightly clamped. The membrane is of domed shape, and is formed in situ by deformation of a planar metal foil sealingly clamped in position within the chamber, by application of fluid pressure thereto through a port to the chamber.
摘要翻译：提供了一种与化学流体一起使用以避免污染物的流体流量控制阀是重要的。阀具有通过金属箔膜操作构件分成分析部分和驱动器部分的流动控制室，夹在腔室的外围边缘和上壁之间。箔膜可以响应于打开和关闭位置之间的驱动器流体压力而移动。接合膜的边缘的上部具有相对小的表面积，并且由比构成膜和上壁的材料更软的材料制成，因此提供了将膜周边密封到上壁紧紧夹紧时。膜是圆顶形状，并且通过将腔室内的流体压力施加到腔室上，通过将密封地夹在腔室内的位置的平面金属箔的变形原位形成。

3. 发明授权

US5983703A Analytical engine for gas chromatograph 失效
标题翻译：气相色谱仪分析引擎
公开(公告)号：US5983703A
公开(公告)日：1999-11-16
申请号：US709789
申请日：1996-09-09
申请人： David A. Wylie , Ori D. Raubvogel , Richard C. Leveson
发明人： David A. Wylie , Ori D. Raubvogel , Richard C. Leveson
IPC分类号： G01N30/08 , G01N30/30 , G01N30/38 , G01N30/40 , G01N30/54 , G01N30/88 , G01N30/02 , H05B1/02
CPC分类号： G01N30/30 , G01N2030/085 , G01N2030/3007 , G01N2030/303 , G01N2030/385 , G01N2030/402 , G01N2030/8881
摘要： An assembly of chromatograph components which operate at a uniform elevated or reduced temperature and perform the functions of sample injection, precolumn backflush, analytical column selection, detection in a reduced mass and volume, and with a reduced surface area for reduced power consumption in accordance with use in a portable gas chromatograph is disclosed. Parts of the assembly including a switching valve assembly, a column plate, a thermal cover and a detector block are thermally-linked and those parts of the assembly which contact the sample including the gas chromatograph columns are maintained at a controlled temperature using, for example, an efficient axial heater, a Peltier cooler or a heat pipe and temperature sensors, thereby increasing analytical confidence.
摘要翻译：以均匀升高或降低的温度运行并执行样品注入，预柱反吹，分析柱选择，质量和体积减小的检测以及降低的表面积以降低功耗的色谱组件的组件，按照在便携式气相色谱仪中使用。将包括切换阀组件，柱板，热盖和检测器块的组件的部件热连接，并且将包括气相色谱仪柱的样品接触的组件的那些部分使用例如维持在受控温度，有效的轴向加热器，珀尔帖冷却器或热管和温度传感器，从而增加分析置信度。

4. 发明授权

US5176359A Fluid control valve arrangement 失效
标题翻译：流体控制阀装置
公开(公告)号：US5176359A
公开(公告)日：1993-01-05
申请号：US703230
申请日：1991-05-20
申请人： Richard C. Leveson , Mark D. Bassett
发明人： Richard C. Leveson , Mark D. Bassett
IPC分类号： F16K7/12 , F16K7/17 , G01N1/00 , G01N30/20
CPC分类号： G01N35/1097 , F16K7/17 , G01N30/20 , G01N2030/205 , Y10T137/87885
摘要： A fluid control valve arrangement includes a plurality of clusters or pairs of holes extending from one face to the other of a central block. The valves comprise a plurality of deformable blisters formed in a resilient membrane, the blisters positioned so as to coincide with the hole clusters or pairs when the membrane is pressed against a face of the block. The values are closed when the blisters are deformed to an essentially flat shape, advantageously by introducing a high pressure fluid into a cavity above the blisters. The valves are linked together in a desired configuration by grooves formed in the other face of the block.
摘要翻译：流体控制阀装置包括从中心块的一个面延伸到另一个的多个簇或成对的孔。这些阀包括形成在弹性膜中的多个可变形泡罩，当薄膜压在块的表面上时，泡罩被定位成与孔群或配对重合。当泡罩变形为基本平坦的形状时，有利的是通过将高压流体引入到泡罩上方的空腔中来关闭这些值。这些阀通过形成在块的另一个面中的凹槽以期望的构造连接在一起。

5. 发明授权

US4413185A Selective photoionization gas chromatograph detector 失效
标题翻译：选择性光电离气相色谱仪
公开(公告)号：US4413185A
公开(公告)日：1983-11-01
申请号：US258575
申请日：1981-04-29
申请人： Richard C. Leveson , Nicholas J. Barker
发明人： Richard C. Leveson , Nicholas J. Barker
IPC分类号： G01N30/64 , H01J37/00
CPC分类号： G01N30/64 , G01N2030/642
摘要： The invention disclosed is a detection system for the detection of gaseous or vaporous ionizable chemical species entrained in air as a carrier gas. The system includes a gas chromatograph column for separating the chemical species to be detected and a photoionization detector designed for use with air as the carrier gas.
摘要翻译：本发明公开了一种用于检测携带在作为载气的空气中的气态或气态可电离化学物质的检测系统。该系统包括用于分离要检测的化学物质的气相色谱柱和设计用于作为载气的空气的光电离检测器。

6. 发明授权

US4398152A Photoionization detector 失效
标题翻译：光电检测器
公开(公告)号：US4398152A
公开(公告)日：1983-08-09
申请号：US353989
申请日：1982-03-02
申请人： Richard C. Leveson
发明人： Richard C. Leveson
IPC分类号： G01N27/66 , G01N30/64 , G01N27/00
CPC分类号： G01N30/64 , G01N27/66 , G01N2030/642
摘要： A gas discharge tube is provided for use in a detector of the type capable of identifying ionizable species in a carrier gas. The tube contains an inert gas at reduced pressure and the gas is excited by an external circuit including a coil about the tube. The circuit generates a radio frequency which excites the gas and emits ultraviolet radiation. This radiation passes through a transversely located window at the end of the tube for ionizing the species in a chamber. Electrodes are also described for use in association with the chamber to sense ionization. These electrodes form part of a sensing circuit.
摘要翻译：提供了一种气体放电管，用于能够识别载气中的可离子化物质的类型的检测器。该管在减压下含有惰性气体，并且气体由包括围绕管的线圈的外部电路激发。该电路产生激发气体并发射紫外线的射频。该辐射通过管的端部处的横向定位的窗口，用于电离室中的物质。电极也被描述为与室联合以用于感测电离。这些电极构成感测电路的一部分。

7. 发明授权

US5083742A Fluid control valve 失效
标题翻译：流体控制阀
公开(公告)号：US5083742A
公开(公告)日：1992-01-28
申请号：US561103
申请日：1990-08-01
申请人： David A. Wylie , Richard C. Leveson , Paul C. P. Thomson , Donald S. N. Bray
发明人： David A. Wylie , Richard C. Leveson , Paul C. P. Thomson , Donald S. N. Bray
IPC分类号： F16K7/17 , G01N1/00 , G01N30/20 , G01N30/26
CPC分类号： G01N35/1097 , F16K7/17 , G01N30/20 , G01N2030/205 , Y10T137/87877 , Y10T137/87893
摘要： A fluid flow control valve for use with chemical fluids where avoidance of contaminants is important, is provided. The valve has a flow control chamber divided into an analytical section and a driver section by a metallic foil membrane operating member, clamped between the peripheral rim of the chamber and the upper wall. The foil membrane is moveable in response to driver fluid pressure between open and closed positions. The upper portion of the rim which engages the membrane is of relatively small surface area, and is made of a softer material than that from which the membrane and the upper wall are constructed, thereby providing a very effective means of sealing the membrane periphery to the upper wall when tightly clamped. The membrane is of domed shape, and is formed in situ by deformation of a planar metal foil sealingly clamped in position within the chamber, by application of fluid pressure thereto through a port to the chamber.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式