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. 发明申请

US20220234130A1 METHOD FOR PIPE PURGING 有权
公开(公告)号：US20220234130A1
公开(公告)日：2022-07-28
申请号：US17585724
申请日：2022-01-27
申请人： Airgas, Inc.
发明人： Scott LAYMON , Frederick A. SCHWEIGHARDT
IPC分类号： B23K9/32
摘要： A method of providing an inert atmosphere to the inside of a piping assembly prior to and during welding, including introducing a canister, and a deflated bladder which surrounds the canister, into a piping assembly to be welded. Introducing purge gas, thereby inflating the deflated bladder and sealing the canister against the inside of the piping assembly to be welded. Introducing excess purge gas from the bladder into a primary purge gas diffuser, thereby producing a first diffused purge gas stream. Introducing the first diffused purge gas stream into a secondary purge gas diffuser, thereby producing a secondary diffused purge gas stream. Introducing the secondary diffused purge gas stream into a tertiary purge gas diffuser, thereby producing a third purge gas stream. And introducing the third purge gas stream into the inside of the piping assembly to be welded.

2. 发明申请

US20210054970A1 THE USE OF STABLE ISOTOPES OF CO2 TO VALIDATE CYLINDER PREPARATION 有权
公开(公告)号：US20210054970A1
公开(公告)日：2021-02-25
申请号：US16806427
申请日：2020-03-02
申请人： Airgas, Inc. , American Air Liquide, Inc. , L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
发明人： Tracey JACKSIER , Mani C. MATTHEW , Richard A. SOCKI , Jun SONOBE , Megumi ISAJI , James McHALE
IPC分类号： F17C13/02 , F17C5/06 , F17C7/00 , G01N15/08
摘要： A quality control method for the preparation of dry compressed gas cylinder including passivating and/or preparing the compressed gas cylinder with the technique to be validated, filling the passivated/prepared compressed gas cylinder with gaseous carbon dioxide to a normal working pressure, wherein the gaseous carbon dioxide has a known δ18O isotope ratio, maintaining the pressurized gas cylinder at ambient temperature for a first predetermined period of time, and gradually emptying the pressurized gas cylinder, while simultaneously measuring the δ18O isotopic ratio, wherein a predetermined variation in the measured isotopic ratio of δ18O indicates a properly prepared cylinder.

3. 发明授权

US10751763B2 Gas sampling methods 有权
公开(公告)号：US10751763B2
公开(公告)日：2020-08-25
申请号：US15609319
申请日：2017-05-31
申请人： Airgas, Inc.
发明人： Frederick Marencik , Robert J. Grasmeder
IPC分类号： F17C13/04 , B08B5/00 , G01N33/00 , G01F1/26 , B08B9/032 , G01N1/00
摘要： A method for utilizing a gas sampling panel is provide, including at least one system sample gas inlet, a purge gas inlet, a system outlet, a system vent outlet, a purge gas valve, at least one manifold station valve, a regulator isolation valve, a regulator, a flow meter inlet valve, a flow meter, a flow meter outlet valve, a relief valve, a process valve, a process check valve, a purge check valve, and a vent check valve.

4. 发明申请

WO2018156826A1 METHOD FOR MIXING AT LEAST TWO GASES 审中-公开
公开(公告)号：WO2018156826A1
公开(公告)日：2018-08-30
申请号：PCT/US2018/019319
申请日：2018-02-23
申请人： AIRGAS, INC. , DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
发明人： DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
IPC分类号： G05D11/13
摘要： A method of mixing at N gases is provided. This method includes providing N gas flow meters, including N gas flows, wherein N is 3 or more. Measuring each of the N gas flows, at first predetermined intervals of time, and totaling each of the measured N flows over a second predetermined interval of time. Adding the N measured gas flows, thereby determining the total gas flow at the second predetermined interval of time. Dividing the total gas flow for each of the N gas flows by the total gas flow, thereby determining a cumulative calculated theoretical percentage for each of the N gas flows over the second predetermined interval of time. And sounding an alarm, and/or terminating the N gas flows, if the cumulative calculated theoretical percentage for any of the N gas flows exceeds a predetermined range value.

5. 发明申请

WO2009045713A3 CORIOLIS DOSING SYSTEM FOR FILLING GAS CYLINDERS 审中-公开
标题翻译：用于填充气瓶的CORIOLIS加料系统
公开(公告)号：WO2009045713A3
公开(公告)日：2009-05-28
申请号：PCT/US2008076584
申请日：2008-09-15
申请人： AIRGAS INC , SHOCK ROBERT , GRUENBACHER JAMES , WEISS STEVEN
发明人： SHOCK ROBERT , GRUENBACHER JAMES , WEISS STEVEN
IPC分类号： F17C13/02 , F17C5/00
CPC分类号： G01F15/002 , F17C5/06 , F17C7/00 , F17C13/02 , F17C2201/056 , F17C2201/058 , F17C2205/0142 , F17C2205/0338 , F17C2221/011 , F17C2221/013 , F17C2221/014 , F17C2221/016 , F17C2221/017 , F17C2221/03 , F17C2223/0123 , F17C2223/0153 , F17C2223/0161 , F17C2223/033 , F17C2223/035 , F17C2223/036 , F17C2225/0123 , F17C2225/035 , F17C2225/036 , F17C2250/032 , F17C2250/0421 , F17C2250/043 , F17C2250/0439 , F17C2250/0443 , F17C2250/0473 , F17C2250/0491 , F17C2250/0636 , F17C2250/0694 , F17C2260/024 , F17C2260/044 , F17C2270/01 , F17C2270/05 , G01F13/006 , G01F15/003
摘要： In a system including a gas source, a target cylinder for receiving gas, a conduit for carrying gas, and a valve for controlling the flow of gas, a method of dosing the target cylinder with gas is disclosed. The method comprises the step of calculating a mass flow rate for dosing the conduit and the target cylinder. The valve is biased to an open position to permit gas to flow through the conduit and into the target cylinder. The mass flow rate and the cumulative mass of gas flowing through the conduit are measured using a mass flow meter. The valve is biased to maintain the measured mass flow rate of gas flowing through the conduit substantially equivalent to the calculated mass flow rate. The valve is biased to a closed position once the measured cumulative mass of gas is substantially equivalent to the pre-determined mass of gas.
摘要翻译：在包括气源，用于接收气体的目标气缸，用于运载气体的导管以及用于控制气体流动的阀的系统中，公开了一种用气体定量供给目标气缸的方法。该方法包括计算用于计量导管和目标气缸的质量流量的步骤。阀被偏置到打开位置以允许气体流过导管并进入目标气缸。使用质量流量计测量流过导管的气体质量流量和累积质量。该阀被偏置以维持流过导管的气体的测量质量流率基本上等于计算出的质量流率。一旦所测量的气体累积质量基本上等于预定质量的气体，则阀门偏置到关闭位置。

6. 发明申请

WO2018156832A3 METHOD FOR MIXING AT LEAST TWO GASES 审中-公开
公开(公告)号：WO2018156832A3
公开(公告)日：2018-08-30
申请号：PCT/US2018/019327
申请日：2018-02-23
申请人： AIRGAS, INC. , DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
发明人： DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
IPC分类号： G05D11/13
摘要： A method of mixing at least two gases is provided. This method includes providing a mixture composition control, including a predetermined composition input and a composition trim input. Providing N gas flow meters, including a N gas flows, and N desired gas flow rates determined by the mixture composition control, wherein N is 3 or more. Mixing the N gas flows, thereby producing a mixed gas flow at the predetermined composition and at a line pressure. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. And adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input.

7. 发明申请

WO2018156832A2 METHOD FOR MIXING AT LEAST TWO GASES 审中-公开
公开(公告)号：WO2018156832A2
公开(公告)日：2018-08-30
申请号：PCT/US2018/019327
申请日：2018-02-23
申请人： AIRGAS, INC. , DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
发明人： DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
IPC分类号： G05D11/13
摘要： A method of mixing at least two gases is provided. This method includes providing a mixture composition control, including a predetermined composition input and a composition trim input. Providing N gas flow meters, including a N gas flows, and N desired gas flow rates determined by the mixture composition control, wherein N is 3 or more. Mixing the N gas flows, thereby producing a mixed gas flow at the predetermined composition and at a line pressure. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. And adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input.

8. 发明申请

WO2016187505A1 METHOD AND SYSTEM FOR MONITORING PRESSURE IN A GAS CONTAINMENT UNIT 审中-公开
标题翻译：用于监测气体容纳单元中的压力的方法和系统
公开(公告)号：WO2016187505A1
公开(公告)日：2016-11-24
申请号：PCT/US2016/033446
申请日：2016-05-20
申请人： AIRGAS, INC.
发明人： SHOCK, Robert , DESPLAINES, Edward , PERKINS, Jeffrey
IPC分类号： G01L11/00 , G01F23/00
CPC分类号： G01L19/0092 , G01F23/00 , G01L11/00 , G01L19/083 , G01L19/12
摘要： w A gas pressure measurement system configured to indirectly measure an internal pressure of a gas containment unit includes (a) a pressure transducer connected to the gas containment unit by a conduit, the pressure transducer configured to measure the gas pressure within the conduit; (b) a gas flow detector connected to the containment unit by the conduit, the gas flow detector configured to detect a flow rate of the gas through the conduit; and (c) a flow analysis unit configured to receive a signal from the gas flow detector indicating that the flow rate of the gas, wherein when the gas flow within the conduit has fallen below a pre-determined value, the flow analysis unit is configured to transmit a signal to the pressure transducer to measure the gas pressure within the conduit, the gas pressure of the conduit being substantially equivalent to the gas pressure within the gas containment unit.
摘要翻译： w配置为间接测量气体容纳单元的内部压力的气体压力测量系统包括（a）通过管道连接到气体容纳单元的压力传感器，压力传感器被配置成测量导管内的气体压力; （b）通过导管连接到容纳单元的气体流量检测器，所述气体流量检测器被配置为检测通过导管的气体的流量; 以及（c）流量分析单元，被配置为接收来自所述气体流量检测器的信号，其指示所述气体的流量，其中当所述导管内的气体流量已经低于预定值时，所述流量分析单元被配置将信号传输到压力传感器以测量导管内的气体压力，导管的气体压力基本上等于气体容纳单元内的气体压力。

9. 发明申请

WO2022164954A1 METHOD AND APPARATUS FOR PIPE PURGING 审中-公开
公开(公告)号：WO2022164954A1
公开(公告)日：2022-08-04
申请号：PCT/US2022/013983
申请日：2022-01-27
申请人： L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE , AIRGAS, INC.
发明人： LAYMON, Scott , SCHWEIGHARDT, Frederick A.
IPC分类号： B23K9/32
摘要： A method and apparatus for providing an inert atmosphere to the inside of a piping assembly prior to and during welding, including a canister 101, and a bladder 102 which surrounds the canister 101 and fits inside of a piping assembly to be welded 119. The canister 101 including a purge gas inlet connection 106 fluidically connected to a bladder fill conduit 107, a bladder return conduit 108 fluidically connected to a pressure relief device 109, the pressure relief device 109 fluidically connected to a reduced pressure purge gas conduit 110, a primary purge gas diffuser 111, a secondary purge gas diffuser 113, a tertiary purge gas diffuser 115, and purge gas exit holes 116. Wherein the bladder fill conduit 107 is configured to introduce purge gas into the bladder 102. Wherein the bladder 102 is configured to expand and form a seal between the canister 101 and the piping assembly to be welded 119. And wherein the bladder return conduit 108 is configured to evacuate excess purge gas from the bladder 102.

10. 发明申请

WO2018156834A1 METHOD FOR MIXING AT LEAST TWO GASES 审中-公开
公开(公告)号：WO2018156834A1
公开(公告)日：2018-08-30
申请号：PCT/US2018/019333
申请日：2018-02-23
申请人： AIRGAS, INC. , DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
发明人： DOORE, Mark Joseph , WALLACE, Bradley , CANIGLIA, Gregory
IPC分类号： G05D11/13
摘要： Another method of mixing at least two gases is provided. This method includes providing a mixture composition control, comprising a predetermined composition input and a composition trim input. Providing N gas flow meters, wherein N is 3 or more. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. Adding the N measured gas flow, thereby determining the total gas flow at the first predetermined intervals of time. Adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input. And sounding an alarm, and/or terminating both the N gas flows, if either of the following exceed a predetermined range value: the instantaneous calculated theoretical percentage for any of the N gas flows, or the cumulative calculated theoretical percentage for any of the N gas flows.

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