Patents by Inventor David Lester Rarig
David Lester Rarig has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9101872Abstract: Pressure swing adsorption system comprising two or more vessels, each having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture; piping adapted to (1) introduce the feed gas mixture into the feed ends, withdraw a product gas from the product ends, and withdraw a waste gas from the feed ends of the vessels, and (2) place the product ends of any pair of vessels in flow communication; a feed pipe adapted to supply the feed gas mixture to the system; a product pipe adapted to withdraw the product gas from the system; and a waste gas pipe adapted to withdraw the waste gas from the system. An indexed rotatable multi-port valve is adapted to place the product end of each vessel in sequential flow communication with the product end of each of the other vessels.Type: GrantFiled: July 17, 2013Date of Patent: August 11, 2015Assignee: Air Products and Chemicals, Inc.Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James Labuda
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Patent number: 8603220Abstract: Pressure swing adsorption system comprising two or more vessels, each having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture; piping adapted to (1) introduce the feed gas mixture into the feed ends, withdraw a product gas from the product ends, and withdraw a waste gas from the feed ends of the vessels, and (2) place the product ends of any pair of vessels in flow communication; a feed pipe adapted to supply the feed gas mixture to the system; a product pipe adapted to withdraw the product gas from the system; and a waste gas pipe adapted to withdraw the waste gas from the system. An indexed rotatable multi-port valve is adapted to place the product end of each vessel in sequential flow communication with the product end of each of the other vessels.Type: GrantFiled: September 24, 2010Date of Patent: December 10, 2013Assignee: Air Products and Chemicals, Inc.Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James Labuda
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Publication number: 20130299023Abstract: Pressure swing adsorption system comprising two or more vessels, each having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture; piping adapted to (1) introduce the feed gas mixture into the feed ends, withdraw a product gas from the product ends, and withdraw a waste gas from the feed ends of the vessels, and (2) place the product ends of any pair of vessels in flow communication; a feed pipe adapted to supply the feed gas mixture to the system; a product pipe adapted to withdraw the product gas from the system; and a waste gas pipe adapted to withdraw the waste gas from the system. An indexed rotatable multi-port valve is adapted to place the product end of each vessel in sequential flow communication with the product end of each of the other vessels.Type: ApplicationFiled: July 17, 2013Publication date: November 14, 2013Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James Labuda
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Patent number: 7947118Abstract: Containerized gas separation system comprising (a) a container having an interior, an exterior, and an exterior volume defined by the exterior dimensions of the container and (b) a pressure swing adsorption system installed in the interior of the container and adapted to recover a product gas from a feed gas mixture, the pressure swing adsorption system being adapted to deliver the product gas at a product gas flow rate, wherein the ratio of the exterior volume of the container to the product gas flow rate is less than about 2000 ft3/(ton per day).Type: GrantFiled: January 25, 2008Date of Patent: May 24, 2011Assignee: Air Products and Chemicals, Inc.Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda, James Michael Occhialini, Kevin Alan Lievre, Michael S. Yankovoy
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Publication number: 20110023712Abstract: Pressure swing adsorption system comprising two or more vessels, each having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture; piping adapted to (1) introduce the feed gas mixture into the feed ends, withdraw a product gas from the product ends, and withdraw a waste gas from the feed ends of the vessels, and (2) place the product ends of any pair of vessels in flow communication; a feed pipe adapted to supply the feed gas mixture to the system; a product pipe adapted to withdraw the product gas from the system; and a waste gas pipe adapted to withdraw the waste gas from the system. An indexed rotatable multi-port valve is adapted to place the product end of each vessel in sequential flow communication with the product end of each of the other vessels.Type: ApplicationFiled: September 24, 2010Publication date: February 3, 2011Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda
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Patent number: 7854793Abstract: Pressure swing adsorption system comprising two or more vessels, each having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture; piping adapted to (1) introduce the feed gas mixture into the feed ends, withdraw a product gas from the product ends, and withdraw a waste gas from the feed ends of the vessels, and (2) place the product ends of any pair of vessels in flow communication; a feed pipe adapted to supply the feed gas mixture to the system; a product pipe adapted to withdraw the product gas from the system; and a waste gas pipe adapted to withdraw the waste gas from the system. An indexed rotatable multi-port valve is adapted to place the product end of each vessel in sequential flow communication with the product end of each of the other vessels.Type: GrantFiled: May 22, 2007Date of Patent: December 21, 2010Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda
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Publication number: 20080282883Abstract: Containerized gas separation system comprising (a) a container having an interior, an exterior, and an exterior volume defined by the exterior dimensions of the container and (b) a pressure swing adsorption system installed in the interior of the container and adapted to recover a product gas from a feed gas mixture, the pressure swing adsorption system being adapted to deliver the product gas at a product gas flow rate, wherein the ratio of the exterior volume of the container to the product gas flow rate is less than about 2000 ft3/(ton per day).Type: ApplicationFiled: January 25, 2008Publication date: November 20, 2008Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda, James Michael Occhialini, Kevin Alan Lievre, Michael S. Yankovoy
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Publication number: 20080000353Abstract: Pressure swing adsorption system comprising two or more vessels, each having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture; piping adapted to (1) introduce the feed gas mixture into the feed ends, withdraw a product gas from the product ends, and withdraw a waste gas from the feed ends of the vessels, and (2) place the product ends of any pair of vessels in flow communication; a feed pipe adapted to supply the feed gas mixture to the system; a product pipe adapted to withdraw the product gas from the system; and a waste gas pipe adapted to withdraw the waste gas from the system. An indexed rotatable multi-port valve is adapted to place the product end of each vessel in sequential flow communication with the product end of each of the other vessels.Type: ApplicationFiled: May 22, 2007Publication date: January 3, 2008Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda
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Patent number: 6565628Abstract: A method to reduce the cycle time in a pressure swing adsorption process by reducing the required pressure equalization time in a cycle, thereby reducing the overall cycle time and increasing product recovery per unit of adsorbent used. This reduces the amount of adsorbent required in the beds for a given feed rate while continuing to provide product at an acceptable product purity, and has the desirable effect of reducing the capital cost of the process equipment required for a given volumetric production rate.Type: GrantFiled: July 23, 2001Date of Patent: May 20, 2003Assignee: Air Products and Chemicals, Inc.Inventors: Jianguo Xu, David Lester Rarig, Tracey Ann Cook, Kuo-Kuang Hsu, Michelle Schoonover, Rakesh Agrawal
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Publication number: 20030015091Abstract: A method to reduce the cycle time in a pressure swing adsorption process by reducing the required pressure equalization time in a cycle, thereby reducing the overall cycle time and increasing product recovery per unit of adsorbent used. This reduces the amount of adsorbent required in the beds for a given feed rate while continuing to provide product at an acceptable product purity, and has the desirable effect of reducing the capital cost of the process equipment required for a given volumetric production rate.Type: ApplicationFiled: July 23, 2001Publication date: January 23, 2003Inventors: Jianguo Xu, David Lester Rarig, Tracey Ann Cook, Kuo-Kuang Hsu, Michelle Schoonover, Rakesh Agrawal