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: 7350521
    Abstract: Oxygen concentrator system having a portable oxygen generator unit adapted to generate a non-humidified oxygen-rich gas and a stationary base unit adapted to generate a humidified oxygen-rich gas, wherein the portable oxygen generator unit and the stationary base are adapted for operation in a coupled mode and an uncoupled mode. The portable oxygen generator unit includes a first flow coupling adapted to receive the humidified oxygen-rich gas when operating in the coupled mode, piping means adapted to combine the non-humidified oxygen-rich gas and the humidified oxygen-rich gas to form a humidified oxygen-rich gas product, and an oxygen-rich gas product delivery port. The stationary base unit is adapted to recharge a rechargeable power supply system in the portable oxygen generator unit when the units are coupled.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: April 1, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Glenn Paul Wagner, Matthew James LaBuda
  • Publication number: 20080000353
    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: May 22, 2007
    Publication date: January 3, 2008
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: David Lester Rarig, Roger Dean Whitley, Matthew James LaBuda
  • Publication number: 20070283807
    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: Application
    Filed: June 13, 2006
    Publication date: December 13, 2007
    Inventor: Roger Dean Whitley
  • Patent number: 7279029
    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: May 21, 2004
    Date of Patent: October 9, 2007
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James Michael Occhialini, Roger Dean Whitley, Glenn Paul Wagner, Matthew James LaBuda, Craig E. Steigerwalt
  • Patent number: 7273051
    Abstract: Oxygen generation system having a portable oxygen generator unit including a portable air separation device for the generation of an oxygen-rich gas, a primary gas pump including means to supply air to the portable air separation device, a primary motor to drive the gas pump, a rechargeable power supply to drive the motor, connector means adapted to deliver power to the rechargeable power supply, flow coupling means to transfer the oxygen-rich gas from the portable oxygen generator unit, and a first oxygen-rich gas product discharge port. The system also includes a stationary base unit adapted to couple with the portable oxygen generator unit, wherein the stationary base unit has a stationary power supply system including connector means adapted to recharge the rechargeable power supply in the portable oxygen generator unit, flow coupling means to receive the oxygen-rich gas from the portable oxygen generator unit, and an optional second oxygen-rich gas product discharge port.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: September 25, 2007
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Glenn Paul Wagner, Matthew James LaBuda
  • Publication number: 20050120581
    Abstract: This invention relates to an improvement in a process for removing water from a hydride gas, and particularly ammonia, by contacting the hydride gas with a drying agent under conditions for effecting removal of the water. The improvement for significantly reducing the water content to trace levels in said hydride gas resides in the use of at least Group 1 metal oxide and at least one Group 2 metal oxide as a drying agent.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 9, 2005
    Inventors: Robert Ling Chiang, Roger Dean Whitley, Dingjun Wu, Chun Christine Dong, Madhukar Bhaskara Rao
  • Patent number: 6892473
    Abstract: This invention relates to an improvement in a process for removing water from a hydride gas, and particularly ammonia, by contacting the hydride gas with a drying agent under conditions for effecting removal of the water. The improvement for significantly reducing the water content to trace levels in said hydride gas resides in the use of at least Group 1 metal oxide and at least one Group 2 metal oxide as a drying agent.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: May 17, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert Ling Chiang, Roger Dean Whitley, Dingiun Wu, Chun Christine Dong, Madhukar Bhaskara Rao
  • Patent number: 6866075
    Abstract: Apparatus for dispersing particles flowing from an orifice comprising a deflecting surface disposed relative to the orifice, wherein the deflecting surface is fixed relative to the orifice, whereby particles flowing from the orifice can impinge upon and can be dispersed by the deflecting surface, wherein the orifice is one of a plurality of orifices disposed in a wall of a conduit, and wherein the conduit has an axis which is oriented between about 45 degrees and about 70 degrees from the vertical such that particles can flow through the conduit and through the orifices by gravity.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: March 15, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Stephen Clyde Tentarelli, David Ross Graham, Craig E. Steigerwalt, Luigi Depari
  • Patent number: 6824590
    Abstract: A process for separating a feed gas into at least one product gas includes: (a) providing a gas separation apparatus with at least one adsorption layer including a lithium-exchanged FAU adsorbent having water desorption characteristics, defined by drying curves, similar to those for the corresponding fully sodium-exchanged FAU, a heat of adsorption for carbon dioxide equal to or lower than that for the corresponding fully sodium-exchanged FAU at high loadings of carbon dioxide, and onto which the adsorption layer water and/or carbon dioxide adsorb; (b) feeding into the gas separation apparatus a feed gas including nitrogen, oxygen, and at least one of water and carbon dioxide; and (c) collecting from a product end of the gas separation apparatus at least one product gas containing oxygen.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: November 30, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Douglas Paul Dee, Robert Ling Chiang, Gregory John Gondecki, Roger Dean Whitley, Jane Elizabeth Ostroski
  • Publication number: 20040025966
    Abstract: Apparatus for dispersing particles flowing from an orifice comprising a deflecting surface disposed relative to the orifice, wherein the deflecting surface is fixed relative to the orifice, whereby particles flowing from the orifice can impinge upon and can be dispersed by the deflecting surface.
    Type: Application
    Filed: August 9, 2002
    Publication date: February 12, 2004
    Inventors: Roger Dean Whitley, Stephen Clyde Tentarelli, David Ross Graham, Craig E. Steigerwalt, Luigi Depari
  • Patent number: 6658894
    Abstract: Xenon and/or krypton are recovered from oxygen containing gas, typically derived from liquid oxygen bottoms in a cryogenic air separation plant, by selective adsorption on a Li and Ag exchange zeolite containing 5 to 40% Ag exchange capacity on an equivalents basis, with periodic thermal regeneration of the adsorbent.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: December 9, 2003
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Timothy Christopher Golden, Thomas Stephen Farris, Robert Ling Chiang, Roger Dean Whitley, Fred William Taylor
  • Patent number: 6605136
    Abstract: A pressure swing adsorption process which comprises introducing a feed gas mixture into an inlet of an adsorber vessel during a feed period, wherein the feed gas mixture contains a more strongly adsorbable component and a less strongly adsorbable component and the adsorber vessel contains a bed of adsorbent material which selectively adsorbs the more strongly adsorbable component, and withdrawing a product gas enriched in the less strongly adsorbable component from an outlet of the adsorber vessel during at least a portion of the feed period, wherein a dimensionless cycle-compensated mass transfer coefficient defined as K tfeedVads/Vfeed is maintained in the range of about 23 to about 250.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: August 12, 2003
    Assignee: Air Products and Chemicals, Inc.
    Inventors: David Ross Graham, Roger Dean Whitley, Robert Ling Chiang, Edward Landis Weist, Jr., Timothy Christopher Golden, Matthew James Labuda
  • Publication number: 20030106335
    Abstract: Xenon and/or krypton are recovered from oxygen containing gas, typically derived from liquid oxygen bottoms in a cryogenic air separation plant, by selective adsorption on a Li and Ag exchange zeolite containing 5 to 40% Ag exchange capacity on an equivalents basis, with periodic thermal regeneration of the adsorbent.
    Type: Application
    Filed: July 29, 2002
    Publication date: June 12, 2003
    Inventors: Timothy Christopher Golden, Thomas Stephen Farris, Robert Ling Chiang, Roger Dean Whitley, Fred William Taylor
  • Publication number: 20030106430
    Abstract: A process for separating a feed gas into at least one product gas includes: (a) providing a gas separation apparatus with at least one adsorption layer including a lithium-exchanged FAU adsorbent having water desorption characteristics, defined by drying curves, similar to those for the corresponding fully sodium-exchanged FAU, a heat of adsorption for carbon dioxide equal to or lower than that for the corresponding fully sodium-exchanged FAU at high loadings of carbon dioxide, and onto which the adsorption layer water and/or carbon dioxide adsorb; (b) feeding into the gas separation apparatus a feed gas including nitrogen, oxygen, and at least one of water and carbon dioxide; and (c) collecting from a product end of the gas separation apparatus at least one product gas containing oxygen.
    Type: Application
    Filed: January 13, 2003
    Publication date: June 12, 2003
    Inventors: Douglas Paul Dee, Robert Ling Chiang, Gregory John Gondecki, Roger Dean Whitley, Jane Elizabeth Ostroski
  • Patent number: 6544318
    Abstract: Pressure swing adsorption process for the recovery of high purity oxygen from a feed gas comprising oxygen, nitrogen, and argon. The process includes a forward flow stage which comprises (a) passing the feed gas into a first adsorption zone containing an adsorbent selective for the adsorption of nitrogen over oxygen and argon, and withdrawing therefrom a nitrogen-depleted intermediate gas; (b) passing the nitrogen-depleted intermediate gas into a second adsorption zone containing an adsorbent which is selective for the adsorption of nitrogen over argon and selective for the adsorption of argon over oxygen; (c) withdrawing an oxygen-enriched product gas from the second adsorption zone; and (d) terminating the passing of feed gas into the first adsorption zone and withdrawing an oxygen-enriched depressurization gas from the second adsorption zone in the same flow direction as (c).
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: April 8, 2003
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Douglas Paul Dee, Robert Ling Chiang, Edwin John Miller, Roger Dean Whitley
  • Publication number: 20020144596
    Abstract: Pressure swing adsorption process for the recovery of high purity oxygen from a feed gas comprising oxygen, nitrogen, and argon. The process includes a forward flow stage which comprises (a) passing the feed gas into a first adsorption zone containing an adsorbent selective for the adsorption of nitrogen over oxygen and argon, and withdrawing therefrom a nitrogen-depleted intermediate gas; (b) passing the nitrogen-depleted intermediate gas into a second adsorption zone containing an adsorbent which is selective for the adsorption of nitrogen over argon and selective for the adsorption of argon over oxygen; (c) withdrawing an oxygen-enriched product gas from the second adsorption zone; and (d) terminating the passing of feed gas into the first adsorption zone and withdrawing an oxygen-enriched depressurization gas from the second adsorption zone in the same flow direction as (c).
    Type: Application
    Filed: February 13, 2001
    Publication date: October 10, 2002
    Inventors: Douglas Paul Dee, Robert Ling Chiang, Edwin John Miller, Roger Dean Whitley
  • Publication number: 20020108495
    Abstract: An AgX-type zeolite having a silver exchange level of 20-70% and a Ar/O2 Henry's law selectivity ratio at 23° C. of 1.05 or greater has an optimum combination of selectivity for argon over oxygen at lower cost than higher silver exchange levels. This material can be used in oxygen VSA/PSA processes to produce oxygen at purities above 97%.
    Type: Application
    Filed: February 13, 2001
    Publication date: August 15, 2002
    Inventors: Robert Ling Chiang, Roger Dean Whitley, Jane Elizabeth Ostroski, Douglas Paul Dee
  • Patent number: 6432170
    Abstract: An AgX-type zeolite having a silver exchange level of 20-70% and a Ar/O2 Henry's law selectivity ratio at 23° C. of 1.05 or greater has an optimum combination of selectivity for argon over oxygen at lower cost than higher silver exchange levels. This material can be used in oxygen VSA/PSA processes to produce oxygen at purities above 97%.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: August 13, 2002
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert Ling Chiang, Roger Dean Whitley, Jane Elizabeth Ostroski, Douglas Paul Dee