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公开(公告)号：US10527530B2
公开(公告)日：2020-01-07
申请号：US15951777
申请日：2018-04-12
Applicant: CEM Corporation
Inventor： David A. Barclay , Joseph J. Lambert , William E. Jennings , David L. Herman
Abstract: A venting cap is disclosed for pressure vessels for microwave-assisted chemistry. The venting cap includes a flexible circular cover for closing the mouth of a reaction vessel, a flexible annular wall depending from the circular cover, and a flexible annular ring at the bottom of the annular wall and parallel to the circular cover for positioning the cap on a reaction vessel. At least one indentation in the circular cover minimizes distortion when any contents of a reaction vessel exert pressure against the cap, and at least one opening in the annular wall provides a ventilation path through the cap when gas pressure in a reaction vessel flexes the cap sufficiently to partially disengage at least a portion of the cap from the mouth of the reaction vessel.
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Patent Agency Ranking
公开(公告)号：US20180229208A1
公开(公告)日：2018-08-16
申请号：US15951777
申请日：2018-04-12
Applicant: CEM Corporation
Inventor： David A. Barclay , Joseph J. Lambert , William E. Jennings , David L. Herman
CPC classification number: G01N1/44 , B01J19/126 , B01J2219/0801 , B01J2219/0871 , B01J2219/0877 , B01J2219/089 , B01J2219/1215 , B01J2219/1233 , B01J2219/1236 , B01J2219/1242 , B01J2219/1275 , H05B6/6447 , H05B6/806
Abstract: A venting cap is disclosed for pressure vessels for microwave-assisted chemistry. The venting cap includes a flexible circular cover for closing the mouth of a reaction vessel, a flexible annular wall depending from the circular cover, and a flexible annular ring at the bottom of the annular wall and parallel to the circular cover for positioning the cap on a reaction vessel. At least one indentation in the circular cover minimizes distortion when any contents of a reaction vessel exert pressure against the cap, and at least one opening in the annular wall provides a ventilation path through the cap when gas pressure in a reaction vessel flexes the cap sufficiently to partially disengage at least a portion of the cap from the mouth of the reaction vessel.
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公开(公告)号：US20160096162A1
公开(公告)日：2016-04-07
申请号：US14971397
申请日：2015-12-16
Applicant: CEM Corporation
Inventor： David A. Barclay , Joseph J. Lambert , William E. Jennings , David L. Herman
CPC classification number: G01N1/44 , B01J19/126 , B01J2219/0801 , B01J2219/0871 , B01J2219/0877 , B01J2219/089 , B01J2219/1215 , B01J2219/1233 , B01J2219/1236 , B01J2219/1242 , B01J2219/1275 , H05B6/6447 , H05B6/806
Abstract: An instrument and method for high pressure microwave assisted chemistry are disclosed. The method includes the steps of applying microwave radiation to a sample in a sealed vessel while measuring the temperature of the sample and measuring the pressure generated inside the vessel and until the measured pressure reaches a designated set point, opening the vessel to release gases until the pressure inside the vessel reaches a lower designated set point, closing the vessel, and repeating the steps of opening the vessel at designated pressure set points and closing the vessel at designated pressure set points to the sample until the sample reaction reaches a designated high temperature. The designated set points can controllably differ from one another as the reaction proceeds. Microwave energy can be applied continuously or intermittently during the opening and closing steps. The apparatus includes a microwave cavity, a microwave transparent pressure resistant reaction vessel in the cavity, a cap on the reaction vessel, a pressure sensor for measuring pressure in the vessel, a temperature sensor, and means for opening and closing the cap at predetermined pressure set points measured by the pressure sensor to release pressure from the vessel.
Abstract translation: 公开了一种用于高压微波辅助化学的仪器和方法。 该方法包括以下步骤：在测量样品的温度并测量容器内部产生的压力并直到测量的压力达到指定的设定点，将微波辐射施加到密封容器中的样品中，打开容器释放气体直到 容器内的压力达到下指定设定点，关闭容器，并重复在指定压力设定点打开容器的步骤，并在指定的压力设定点关闭容器至样品，直到样品反应达到指定的高温。 当反应进行时，指定的设定点可以彼此可控地不同。 微波能量可以在打开和关闭步骤期间连续或间歇地施加。 该装置包括微波空腔，空腔中的微波透明耐压反应容器，反应容器上的盖，用于测量容器压力的压力传感器，温度传感器以及用于以预定压力打开和关闭盖的装置 由压力传感器测量的设定点以释放来自容器的压力。
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公开(公告)号：US10067043B2
公开(公告)日：2018-09-04
申请号：US15395002
申请日：2016-12-30
Applicant: CEM Corporation
Inventor： David A. Barclay , Joseph J. Lambert , William E. Jennings , David L. Herman
CPC classification number: G01N1/44 , B01J19/126 , B01J2219/0801 , B01J2219/0871 , B01J2219/0877 , B01J2219/089 , B01J2219/1215 , B01J2219/1233 , B01J2219/1236 , B01J2219/1242 , B01J2219/1275 , H05B6/6447 , H05B6/806
Abstract: An instrument and method for high pressure microwave assisted chemistry are disclosed. The method includes the steps of applying microwave radiation to a sample in a sealed vessel while measuring the temperature of the sample and measuring the pressure generated inside the vessel and until the measured pressure reaches a designated set point, opening the vessel to release gases until the pressure inside the vessel reaches a lower designated set point, closing the vessel, and repeating the steps of opening the vessel at designated pressure set points and closing the vessel at designated pressure set points to the sample until the sample reaction reaches a designated high temperature. The designated set points can controllably differ from one another as the reaction proceeds. Microwave energy can be applied continuously or intermittently during the opening and closing steps. The apparatus includes a microwave cavity, a microwave transparent pressure resistant reaction vessel in the cavity, a cap on the reaction vessel, a pressure sensor for measuring pressure in the vessel, a temperature sensor, and means for opening and closing the cap at predetermined pressure set points measured by the pressure sensor to release pressure from the vessel.
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公开(公告)号：US09943823B2
公开(公告)日：2018-04-17
申请号：US14971397
申请日：2015-12-16
Applicant: CEM Corporation
Inventor： David A. Barclay , Joseph J. Lambert , William E. Jennings , David L. Herman
CPC classification number: G01N1/44 , B01J19/126 , B01J2219/0801 , B01J2219/0871 , B01J2219/0877 , B01J2219/089 , B01J2219/1215 , B01J2219/1233 , B01J2219/1236 , B01J2219/1242 , B01J2219/1275 , H05B6/6447 , H05B6/806
Abstract: An instrument and method for high pressure microwave assisted chemistry are disclosed. The method includes the steps of applying microwave radiation to a sample in a sealed vessel while measuring the temperature of the sample and measuring the pressure generated inside the vessel and until the measured pressure reaches a designated set point, opening the vessel to release gases until the pressure inside the vessel reaches a lower designated set point, closing the vessel, and repeating the steps of opening the vessel at designated pressure set points and closing the vessel at designated pressure set points to the sample until the sample reaction reaches a designated high temperature. The designated set points can controllably differ from one another as the reaction proceeds. Microwave energy can be applied continuously or intermittently during the opening and closing steps. The apparatus includes a microwave cavity, a microwave transparent pressure resistant reaction vessel in the cavity, a cap on the reaction vessel, a pressure sensor for measuring pressure in the vessel, a temperature sensor, and means for opening and closing the cap at predetermined pressure set points measured by the pressure sensor to release pressure from the vessel.
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公开(公告)号：US20170108415A1
公开(公告)日：2017-04-20
申请号：US15395002
申请日：2016-12-30
Applicant: CEM Corporation
Inventor： David A. Barclay , Joseph J. Lambert , William E. Jennings , David L. Herman
CPC classification number: G01N1/44 , B01J19/126 , B01J2219/0801 , B01J2219/0871 , B01J2219/0877 , B01J2219/089 , B01J2219/1215 , B01J2219/1233 , B01J2219/1236 , B01J2219/1242 , B01J2219/1275 , H05B6/6447 , H05B6/806
Abstract: An instrument and method for high pressure microwave assisted chemistry are disclosed. The method includes the steps of applying microwave radiation to a sample in a sealed vessel while measuring the temperature of the sample and measuring the pressure generated inside the vessel and until the measured pressure reaches a designated set point, opening the vessel to release gases until the pressure inside the vessel reaches a lower designated set point, closing the vessel, and repeating the steps of opening the vessel at designated pressure set points and closing the vessel at designated pressure set points to the sample until the sample reaction reaches a designated high temperature. The designated set points can controllably differ from one another as the reaction proceeds. Microwave energy can be applied continuously or intermittently during the opening and closing steps. The apparatus includes a microwave cavity, a microwave transparent pressure resistant reaction vessel in the cavity, a cap on the reaction vessel, a pressure sensor for measuring pressure in the vessel, a temperature sensor, and means for opening and closing the cap at predetermined pressure set points measured by the pressure sensor to release pressure from the vessel.
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