Patents by Inventor Andrew David Wright

Andrew David Wright 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: 8012446
    Abstract: NO2 may be removed from a carbon dioxide feed gas comprising NOx and at least one “non-condensable” gas as contaminants by passing the feed gas at a first elevated pressure through a first adsorption system that selectively adsorbs at least NO2 to produce at least substantially NO2-free carbon dioxide gas. The adsorption system is at least partially regenerated using a carbon dioxide-rich gas recovered from the substantially NO2-free carbon dioxide gas after purification. The invention has particular application in removing NOx and water from flue gas generated by oxyfuel combustion.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: September 6, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Andrew David Wright, Kevin Boyle Fogash, Vincent White, Jeffrey William Kloosterman, Timothy Christopher Golden, Paul Higginbotham
  • Patent number: 7846237
    Abstract: The concentration of adsorbate in the feed gas to an on-stream bed of a cyclical swing adsorption process is monitored and the data processed to predict the time required to complete the on-stream mode of that bed and the purge flow rate and/or other regeneration mode operating condition of the concurrently off-stream bed is modified in response to changes in said predicted time whereby the regeneration mode of the off-steam bed is completed at the same time as the on-stream mode of the concurrent on-stream bed.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: December 7, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Andrew David Wright, Mohammad Ali Kalbassi, Timothy Christopher Golden, Christopher James Raiswell
  • Publication number: 20090297420
    Abstract: A method is described for treating a gas stream comprising fluorine (F2) gas. In a preferred embodiment, the method comprises the steps of conveying the gas stream to a reaction chamber containing a heated bed of material to react with F2 to form an inorganic fluoride, and at least partially evacuating the reaction chamber so that the gas stream is conveyed to and from the reaction chamber at a sub-atmospheric pressure.
    Type: Application
    Filed: September 21, 2006
    Publication date: December 3, 2009
    Inventors: Peter Leslie Timms, Elizabeth Timms, James Robert Smith, Andrew David Wright
  • Publication number: 20090260518
    Abstract: The concentration of adsorbate in the feed gas to an on-stream bed of a cyclical swing adsorption process is monitored and the data processed to predict the time required to complete the on-stream mode of that bed and the purge flow rate and/or other regeneration mode operating condition of the concurrently off-stream bed is modified in response to changes in said predicted time whereby the regeneration mode of the off-steam bed is completed at the same time as the on-stream mode of the concurrent on-stream bed.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 22, 2009
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Andrew David Wright, Mohammad Ali Kalbassi, Timothy Christopher Golden, Christopher James Raiswell
  • Publication number: 20090173752
    Abstract: A hand-held multi-dose dispensing apparatus (10) comprising a metering chamber (20) having an axis (21), an end portion (22) at one axial end of the chamber (20) and a side body portion (23) extending from the axial end portion (22), a piston arrangement (30) movable with a piston stroke along the axis of the metering chamber (20) with a seal portion (34) of the piston arrangement (30) being slidably engageable with an inside surface of a side portion (23) of the metering chamber, an inlet (27) for fluid to enter the metering chamber (20), and an outlet (31, 32) for fluid to be dispensed from the metering chamber (20), wherein the inlet (27) is provided on the side body portion (23) of the metering chamber and, in use, during a first portion of the piston stroke, the inlet (27) is in fluid communication with the metering chamber (20) and during a second portion of the piston stroke, the seal portion (34) of the piston arrangement (30) blocks the inlet (27) preventing fluid from passing from the inlet (27) int
    Type: Application
    Filed: September 6, 2004
    Publication date: July 9, 2009
    Inventor: Andrew David Wright
  • Publication number: 20090166379
    Abstract: A hand-held dispenser for dispensing a pharmaceutical product is disclosed. The dispenser has a housing providing a duct. A frangible membrane is provided in the duct. A probe with a piercing tip is mounted in the duct and arranged such that, in use the piercing tip pierces the frangible membrane. An air compression device is provided to compress air for expelling a pharmaceutical product through the probe and a channel is provided to substantially equalise the pressure in the air compression device and the pressure above the frangible membrane. The ability to substantially equalise the pressure in the bellows and the pressure above the frangible membrane on the sheath provides for a mote consistent release of pharmaceutical product when the frangible membrane is pierced.
    Type: Application
    Filed: March 1, 2006
    Publication date: July 2, 2009
    Inventors: Andrew David Wright, Richard Iain Harrison, Colin John Dickens
  • Patent number: 7413595
    Abstract: An improved control scheme is set forth for an adsorption process that removes water and carbon dioxide (CO2) from a feed gas using a hybrid of both temperature swing (i.e. TSA) and pressure swing (PSA) to regenerate the adsorbent. The control scheme comprises adjusting the quantity of heat to be provided by the regeneration gas as a function of temperature data taken within a strategic portion of the water selective adsorbent zone. The strategic portion corresponds to the location for the desired transition from regeneration by temperature swing, to regeneration by pressure swing. In a preferred embodiment of the present invention, said quantity of regeneration heat is also adjusted as a function of the water content of the feed gas.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: August 19, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William Paul Schmidt, Daniel Patrick Zwilling, Andrew David Wright, Mohammad Ali Kalbassi, Christopher James Raiswell
  • Patent number: 6945953
    Abstract: A dispensing device for dispensing a powdered product includes a housing having a first end and a second end defining a first outlet; a plunger slidably received in the first end of the housing, the housing and plunger together defining an interior of the dispensing device which is open to atmosphere; a chamber located within the plunger for housing a powdered product; a sheathing member slidably mounted on an end of the plunger proximate the second end of the housing, and having an inlet and a second outlet closed by a frangible membrane. Additionally, the plunger includes a perforating element for puncturing the frangible membrane when the plunger is moved towards the second end of the housing.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: September 20, 2005
    Assignee: Bespak PLC
    Inventor: Andrew David Wright
  • Patent number: 6866039
    Abstract: The present invention relates to a disposable dispensing apparatus for delivering a powdered product nasally or orally. The apparatus comprises a housing (1) defining an outlet (7) and a shaft (32) having a storage chamber (33) therein for a product provided with a first inlet (34) and a first outlet (35). A sheathing means (4) is slidably mounted on the shaft and has a second inlet (42) and a second outlet closed by a frangible membrane (44). There is also provided a variable volume means (2) operatively connected to the shaft. The shaft is movable, on operation of the variable volume means to reduce the variable volume so as to pressurize gas in an interior of the variable volume means, from an initial storage position in which the first and second inlets are out of alignment so as to close a gas flow path, to a dispensing position in which the first and second inlets are brought into alignment by action of the housing against the sheathing means.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: March 15, 2005
    Assignee: Bespak PLC
    Inventors: Andrew David Wright, Hilde Rachel Maria Pollet, Richard Iain Harrison
  • Publication number: 20030178440
    Abstract: A dispensing device for dispensing a powdered product includes a housing having a first end and a second end defining a first outlet; a plunger slidably received in the first end of the housing, the housing and plunger together defining an interior of the dispensing device which is open to atmosphere; a chamber located within the plunger for housing a powdered product; a sheathing member slidably mounted on an end of the plunger proximate the second end of the housing, and having an inlet and a second outlet closed by a frangible membrane. Additionally, the plunger includes a perforating element for puncturing the frangible membrane when the plunger is moved towards the second end of the housing.
    Type: Application
    Filed: January 21, 2003
    Publication date: September 25, 2003
    Applicant: BESPAK PLC
    Inventor: Andrew David Wright