Patents by Inventor Roger Dean Whitley

Roger Dean Whitley 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).

  • Patent number: 8603220
    Abstract: 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: Grant
    Filed: September 24, 2010
    Date of Patent: December 10, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James Labuda
  • Publication number: 20130299023
    Abstract: 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: Application
    Filed: July 17, 2013
    Publication date: November 14, 2013
    Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James Labuda
  • Patent number: 8562718
    Abstract: A built in purifier for a cylinder of essentially nitrogen free gas having a low water content is provided with a molecular sieve 3A adsorbent to adsorb water from the gas, the 3A adsorbent having a particularly low adsorption capacity for nitrogen.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: October 22, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Pascal Lisbet, Daniel Louis Vassilaros, Stuart Alexander Kerr
  • Publication number: 20130228072
    Abstract: A built in purifier for a cylinder of essentially nitrogen free gas having a low water content is provided with a molecular sieve 3A adsorbent to adsorb water from the gas, the 3A adsorbent having a particularly low adsorption capacity for nitrogen.
    Type: Application
    Filed: April 16, 2013
    Publication date: September 5, 2013
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Pascal Lisbet, Daniel Louis Vassilaros, Stuart Alexander Kerr
  • Patent number: 8449654
    Abstract: A built in purifier for a cylinder of essentially nitrogen free gas having a low water content is provided with a molecular sieve 3A adsorbent to adsorb water from the gas, the 3A adsorbent having a particularly low adsorption capacity for nitrogen.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: May 28, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Pascal Lisbet, Daniel Louis Vassilaros, Stuart Alexander Kerr
  • Publication number: 20130047848
    Abstract: A built in purifier for a cylinder of essentially nitrogen free gas having a low water content is provided with a molecular sieve 3A adsorbent to adsorb water from the gas, the 3A adsorbent having a particularly low adsorption capacity for nitrogen.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 28, 2013
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Roger Dean Whitley, Pascal Lisbet, Daniel Louis Vassilaros, Stuart Alexander Kerr
  • Patent number: 8016918
    Abstract: Pressure swing adsorption process for producing oxygen comprising (a) providing at least one adsorber vessel having a first layer of adsorbent adjacent the feed end of the vessel and a second layer of adsorbent adjacent the first layer, wherein the surface area to volume ratio of the first layer is in the range of about 0.75 to about 1.8 cm?1; (b) introducing a pressurized feed gas comprising at least oxygen, nitrogen, and water into the feed end, adsorbing at least a portion of the water in the adsorbent in the first layer, and adsorbing at least a portion of the nitrogen in the adsorbent in the second layer, wherein the superficial contact time of the pressurized feed gas in the first layer is between about 0.08 and about 0.50 sec; and (c) withdrawing a product gas enriched in oxygen from the product end of the adsorber vessel.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: September 13, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Matthew James LaBuda, Timothy Christopher Golden, Roger Dean Whitley, Craig E. Steigerwalt
  • Patent number: 7947118
    Abstract: 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: Grant
    Filed: January 25, 2008
    Date of Patent: May 24, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda, James Michael Occhialini, Kevin Alan Lievre, Michael S. Yankovoy
  • Publication number: 20110023712
    Abstract: 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: Application
    Filed: September 24, 2010
    Publication date: February 3, 2011
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda
  • Patent number: 7862645
    Abstract: Method for argon recovery that comprises (a) providing a feed gas mixture comprising argon and nitrogen; (b) contacting at least a portion of the feed gas mixture with a nitrogen-selective adsorbent in a cyclic pressure swing adsorption process and adsorbing at least a portion of the nitrogen on the adsorbent in a first pressure range above 100 psia to provide a purified argon product and an adsorbent comprising adsorbed nitrogen; and (c) desorbing the adsorbed nitrogen in one or more regeneration steps effected in a second pressure range between atmospheric pressure and a super-atmospheric pressure below any pressure in the first pressure range, inclusive; wherein the cyclic pressure swing adsorption process is effected at an average operating temperature of at least about 0° C.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: January 4, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Edward Landis Weist, Jr., Annemarie Ott Weist, Steven Ray Auvil
  • Patent number: 7854793
    Abstract: 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: Grant
    Filed: May 22, 2007
    Date of Patent: December 21, 2010
    Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda
  • Patent number: 7717981
    Abstract: PSA process for oxygen production comprising (a) providing an adsorber having a first layer of adsorbent selective for water and a second layer of adsorbent selective for nitrogen, wherein the heat of adsorption of water on the adsorbent in the first layer is ?about 14 kcal/mole at water loadings ?about 0.05 to about 3 mmol per gram; (b) passing a feed gas comprising at least oxygen, nitrogen, and water successively through the first and second layers, adsorbing water in the first layer of adsorbent, and adsorbing nitrogen in the second layer of adsorbent, wherein the mass transfer coefficient of water in the first layer is in the range of about 125 to about 400 sec?1 and the superficial contact time of the feed gas in the first layer is between about 0.08 and about 0.50 sec; and (c) withdrawing a product enriched in oxygen from the adsorber.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: May 18, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Matthew James LaBuda, Timothy Christopher Golden, Roger Dean Whitley
  • Patent number: 7651549
    Abstract: Process step in a pressure swing adsorption process using multiple parallel adsorbent beds operating in cyclic process steps to recover a less strongly adsorbable component from a feed gas mixture containing at least one less strongly adsorbable component and at least one more strongly adsorbable component, wherein each adsorbent bed has a feed end and a product end, wherein each bed is subjected to at least a feed/product step, one or more depressurization steps, a purge step in which a purge gas enriched in the less strongly adsorbable component is introduced into the product end of the bed and a purge effluent gas is withdrawn from the feed end of the bed, and one or more repressurization steps. The process step comprises introducing at least a portion of the purge effluent gas from a first bed into the feed end of a second adsorbent bed at any time other than during the feed/product step in the second adsorbent bed.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: January 26, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Roger Dean Whitley
  • Publication number: 20090193967
    Abstract: Method for argon recovery that comprises (a) providing a feed gas mixture comprising argon and nitrogen; (b) contacting at least a portion of the feed gas mixture with a nitrogen-selective adsorbent in a cyclic pressure swing adsorption process and adsorbing at least a portion of the nitrogen on the adsorbent in a first pressure range above 100 psia to provide a purified argon product and an adsorbent comprising adsorbed nitrogen; and (c) desorbing the adsorbed nitrogen in one or more regeneration steps effected in a second pressure range between atmospheric pressure and a super-atmospheric pressure below any pressure in the first pressure range, inclusive; wherein the cyclic pressure swing adsorption process is effected at an average operating temperature of at least about 0° C.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 6, 2009
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Roger Dean Whitley, Edward Landis Weist, JR., Annemarie Ott Weist, Steven Ray Auvil
  • Patent number: 7510601
    Abstract: Portable medical oxygen concentrator comprising an air separation system adapted to recover oxygen from air; a bottom platform and a shell having an outer wall, wherein the shell is detachably connected to the bottom platform, wherein the shell and bottom platform define an enclosed volume when the shell is connected to the bottom platform, and wherein the air separation system is disposed in the enclosed volume; and one or more rechargeable batteries detachably connected to the outer wall of the shell and adapted to provide power to drive the air separation system. The air separation system may comprises a pressure swing adsorption system having two or more adsorbent columns and a rotary valve for directing gas flow sequentially to, from, and among the columns. A base assembly attached to the bottom platform may be adapted to support the two or more adsorbent columns and the rotary valve.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: March 31, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Glenn Paul Wagner, Matthew James LaBuda, David R. Schiff, Peter D. Byar, Andrew M. Weiman, Seth GaleWyrick
  • Publication number: 20090071333
    Abstract: PSA process for oxygen production comprising (a) providing an adsorber having a first layer of adsorbent selective for water and a second layer of adsorbent selective for nitrogen, wherein the heat of adsorption of water on the adsorbent in the first layer is equal to or less than about 14 kcal/mole at water loadings less than about 0.05 mmol per gram; (b) passing a feed gas comprising at least oxygen, nitrogen, and water successively through the first and second layers, adsorbing water in the first layer of adsorbent, and adsorbing nitrogen in the second layer of adsorbent, wherein the mass transfer coefficient of water in the first layer is in the range of about 125 to about 400 sec?1 and the superficial contact time of the feed gas in the first layer is between about 0.08 and about 0.50 sec; and (c) withdrawing a product enriched in oxygen from the adsorber.
    Type: Application
    Filed: November 21, 2008
    Publication date: March 19, 2009
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Matthew James LaBuda, Timothy Christopher Golden, Roger Dean Whitley
  • Patent number: 7473299
    Abstract: System for producing an oxygen-rich gas comprising (a) a primary gas mover including a first and a second compressor, wherein the primary gas mover is characterized by a weight Wp; (b) a drive motor adapted to drive the first and second compressors; (c) a rechargeable power supply characterized by a weight, Wb; and (d) a pressure/vacuum swing adsorption unit adapted to separate the pressurized feed air into an oxygen-rich product at a product flow rate Fp and an oxygen-depleted waste gas, wherein the adsorption unit comprises a plurality of adsorber beds containing an adsorbent and characterized by a total adsorbent weight Wa; and wherein the combined weight, Wt, of the adsorbent, the primary gas mover, and the rechargeable power supply is characterized by the expression 0.75 Fp<Wt<2.02 Fp where Fp is in liters per min (at 23° C. and 1 atma pressure), and Wa, Wp, and Wb are in pounds.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 6, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James Michael Occhialini, Roger Dean Whitley, Glenn Paul Wagner, Matthew James LaBuda, Craig E. Steigerwalt
  • Publication number: 20080282883
    Abstract: 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: Application
    Filed: January 25, 2008
    Publication date: November 20, 2008
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda, James Michael Occhialini, Kevin Alan Lievre, Michael S. Yankovoy
  • Publication number: 20080083331
    Abstract: Pressure swing adsorption process for producing oxygen comprising (a) providing at least one adsorber vessel having a first layer of adsorbent adjacent the feed end of the vessel and a second layer of adsorbent adjacent the first layer, wherein the surface area to volume ratio of the first layer is in the range of about 5 to about 11 cm?1; (b) introducing a pressurized feed gas comprising at least oxygen, nitrogen, and water into the feed end, adsorbing at least a portion of the water in the adsorbent in the first layer, and adsorbing at least a portion of the nitrogen in the adsorbent in the second layer, wherein the superficial contact time of the pressurized feed gas in the first layer is between about 0.08 and about 0.50 sec; and (c) withdrawing a product gas enriched in oxygen from the product end of the adsorber vessel.
    Type: Application
    Filed: October 4, 2006
    Publication date: April 10, 2008
    Inventors: Matthew James LaBuda, Timothy Christopher Golden, Roger Dean Whitley, Craig E. Steigerwalt
  • Publication number: 20080083332
    Abstract: PSA process for oxygen production comprising (a) providing an adsorber having a first layer of adsorbent selective for water and a second layer of adsorbent selective for nitrogen, wherein the heat of adsorption of water on the adsorbent in the first layer is ? about 14 kcal/mole at water loadings? about 0.05 mmol per gram; (b) passing a feed gas comprising at least oxygen, nitrogen, and water successively through the first and second layers, adsorbing water in the first layer of adsorbent, and adsorbing nitrogen in the second layer of adsorbent, wherein the mass transfer coefficient of water in the first layer is in the range of about 125 to about 400 sec?1 and the superficial contact time of the feed gas in the first layer is between about 0.08 and about 0.50 sec; and (c) withdrawing a product enriched in oxygen from the adsorber.
    Type: Application
    Filed: October 4, 2006
    Publication date: April 10, 2008
    Inventors: Matthew James LaBuda, Timothy Christopher Golden, Roger Dean Whitley