Patents by Inventor Neil T. Plant

Neil T. Plant 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).

  • Methods and systems for characterizing a sorbent tube
    Patent number: 7824478
    Abstract: Disclosed are systems and methods that include providing a vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet for a known flow rate at the outlet; and, determining a unit flow per unit pressure based on a ratio of the flow rate and the differential pressure. In certain embodiments, the flow rate at the outlet is established by controlling the flow rate of the gas. In some embodiments, the methods and systems can include a viscosity in the ratio, determining a flow rate at ambient pressure using a factor based on a ratio of a gas pressure at the output and ambient pressure, and/or, determining a flow rate at ambient temperature using a factor based on a ratio of a temperature at the output and ambient temperature.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: November 2, 2010
    Assignee: PerkinElmer Health Sciences, Inc.
    Inventors: Andrew Tipler, Neil T. Plant
  • Methods and systems for characterizing a sorbent tube
    Patent number: 7422625
    Abstract: Disclosed are systems and methods that include providing a vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet for a known flow rate at the outlet; and, determining a unit flow per unit pressure based on a ratio of the flow rate and the differential pressure. In certain embodiments, the flow rate at the outlet is established by controlling the flow rate of the gas. In some embodiments, the methods and systems can include a viscosity in the ratio, determining a flow rate at ambient pressure using a factor based on a ratio of a gas pressure at the output and ambient pressure, and/or, determining a flow rate at ambient temperature using a factor based on a ratio of a temperature at the output and ambient temperature.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: September 9, 2008
    Assignee: PerkinElmer LAS, Inc.
    Inventors: Andrew Tipler, Neil T. Plant
  • Methods and systems for characterizing a sorbent tube
    Patent number: 7267709
    Abstract: Disclosed are systems and methods that include providing a vessel having an adsorbent disposed therein, the vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet for a known flow rate at the outlet; and, determining a geometric measure for the vessel based on a ratio of the known flow rate and the differential pressure. In some embodiments, the methods and systems can include a viscosity in the ratio, determining a flow rate at ambient pressure using a factor based on a ratio of a gas pressure at the output and ambient pressure, and/or, determining a flow rate at ambient temperature using a factor based on a ratio of a temperature at the output and ambient temperature.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: September 11, 2007
    Assignee: PerkinElmer LAS, Inc.
    Inventors: Andrew Tipler, Neil T. Plant
  • Methods and systems for characterizing a sorbent tube
    Patent number: 7168296
    Abstract: Disclosed are systems and methods that include providing a vessel having an adsorbent disposed therein, the vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet for a known flow rate at the outlet; and, determining a geometric measure for the vessel based on a ratio of the known flow rate and the differential pressure. In some embodiments, the methods and systems can include a viscosity in the ratio, determining a flow rate at ambient pressure using a factor based on a ratio of a gas pressure at the output and ambient pressure, and/or, determining a flow rate at ambient temperature using a factor based on a ratio of a temperature at the output and ambient temperature.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: January 30, 2007
    Assignee: PerkinElmer LAS, Inc.
    Inventors: Andrew Tipler, Neil T. Plant