Patents by Inventor Mark D. Mitchell

Mark D. Mitchell 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).

  • Publication number: 20180306651
    Abstract: A monitoring system for monitoring the temperature of a sample of insulin stored in a container. Additionally, a monitoring and detecting system for monitoring a sample that is sensitive to ambient temperature, pressure and/or ultra-violet (UV) radiation or other conditions. The system includes sensor circuits that sense conditions of a sample. A comparator circuit receives input from the sensor circuit indicative of the sensed conditions of the sample. The comparator circuit generates a profile of the sample and indicator modules provide an indication, such as warn or fail for the sample.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 25, 2018
    Inventors: Mark D. Mitchell, Connor F. Mitchell
  • Patent number: 9713732
    Abstract: A fire suppressant mixture comprising: an organic or supplemental organic fire suppressant compound; a halogen element, and an organic compound, wherein the organic fire suppressant compound, the halogen element and the organic compound are combined such that a boiling point of the mixture is lower than the boiling point of the organic fire suppressant. In some embodiments, the organic fire suppressant compound is FK 5-1-12 and the organic compound is carbon dioxide. In other embodiments, the mixture is supplemented with an additional organic compound such as CF3I or 2,2-Dichloro-1,1,1-trifluoroethane (R123), or an halogen element. In some embodiments an inorganic pressurizing gas, such as nitrogen, is also added.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 25, 2017
    Assignee: MEGGITT SAFETY SYSTEMS, INC.
    Inventors: Mark D. Mitchell, John F. Black, Kurt E. Mills
  • Patent number: 9182381
    Abstract: A probe for measuring an agent in gas and liquid form comprising: a body including an inner chamber and comprised of a porous material; and a heating element in thermal communication with the porous material.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 10, 2015
    Assignee: Meggitt Safety Systems, Inc.
    Inventors: Mark D. Mitchell, Kurt E. Mills, John Forbes Black
  • Patent number: 9034202
    Abstract: A fire suppressant mixture comprising: an organic or supplemental organic fire suppressant compound having a boiling point; and an organic compound with a boiling point lower than the boiling point of the organic fire suppressant compound, wherein the organic fire suppressant compound and the organic compound are combined such that a boiling point of the mixture is lower than the boiling point of the organic fire suppressant. In some embodiments, the organic fire suppressant compound is FK 5-1-12 and the organic compound is carbon dioxide. In other embodiments, the mixture is supplemented with an additional organic compound CF3I and an inorganic pressurizing gas, such as nitrogen.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: May 19, 2015
    Assignee: Meggitt Safety Systems Inc.
    Inventors: Mark D. Mitchell, John F. Black, Kurt Mills
  • Publication number: 20150041157
    Abstract: A fire suppressant mixture comprising: an organic or supplemental organic fire suppressant compound; a halogen element, and an organic compound, wherein the organic fire suppressant compound, the halogen element and the organic compound are combined such that a boiling point of the mixture is lower than the boiling point of the organic fire suppressant. In some embodiments, the organic fire suppressant compound is FK 5-1-12 and the organic compound is carbon dioxide. In other embodiments, the mixture is supplemented with an additional organic compound such as CF3I or 2,2-Di-chloro-1,1,1-trifluoroethane (R123), or an halogen element. In some embodiments an inorganic pressurizing gas, such as nitrogen, is also added.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 12, 2015
    Applicant: Meggitt Safety Systems Inc.
    Inventors: Mark D. Mitchell, John F. Black, Kurt E. Mills
  • Patent number: 8920668
    Abstract: A fire suppressant mixture comprising: an organic or supplemental organic fire suppressant compound; a halogen element, and an organic compound, wherein the organic fire suppressant compound, the halogen element and the organic compound are combined such that a boiling point of the mixture is lower than the boiling point of the organic fire suppressant. In some embodiments, the organic fire suppressant compound is FK 5-1-12 and the organic compound is carbon dioxide. In other embodiments, the mixture is supplemented with an additional organic compound such as CF3I or 2,2-Dichloro-1,1,1-trifluoroethane (R123), or an halogen element. In some embodiments an inorganic pressurizing gas, such as nitrogen, is also added.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: December 30, 2014
    Assignee: Meggitt Safety Systems Inc.
    Inventors: Mark D. Mitchell, John F. Black, Kurt Mills
  • Publication number: 20130240218
    Abstract: A fire suppressant mixture comprising: an organic or supplemental organic fire suppressant compound having a boiling point; and an organic compound with a boiling point lower than the boiling point of the organic fire suppressant compound, wherein the organic fire suppressant compound and the organic compound are combined such that a boiling point of the mixture is lower than the boiling point of the organic fire suppressant. In some embodiments, the organic fire suppressant compound is FK 5-1-12 and the organic compound is carbon dioxide. In other embodiments, the mixture is supplemented with an additional organic compound CF3I and an inorganic pressurizing gas, such as nitrogen.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 19, 2013
    Inventors: Mark D. Mitchell, John F. Black, Kurt Mills
  • Publication number: 20130240217
    Abstract: A fire suppressant mixture comprising: an organic or supplemental organic fire suppressant compound; a halogen element, and an organic compound, wherein the organic fire suppressant compound, the halogen element and the organic compound are combined such that a boiling point of the mixture is lower than the boiling point of the organic fire suppressant. In some embodiments, the organic fire suppressant compound is FK 5-1-12 and the organic compound is carbon dioxide. In other embodiments, the mixture is supplemented with an additional organic compound such as CF3I or 2,2-Dichloro-1,1,1-trifluoroethane (R123), or an halogen element. In some embodiments an inorganic pressurizing gas, such as nitrogen, is also added.
    Type: Application
    Filed: August 24, 2012
    Publication date: September 19, 2013
    Inventors: Mark D. Mitchell, John F. Black, Kurt Mills
  • Patent number: 5623833
    Abstract: A high efficiency, high rate system for recovering and removing non-condensable gases from a halocarbon composition. A collection tank with an integral heat exchanger unit is submerged in a liquid heat transfer medium and coupled to the halocarbon composition. Refrigerant injected into the heat transfer medium cools the heat exchanger unit and collection tank allows the separation of gases from the liquid phase of the halocarbon composition. The gases contained within the liquid phase are separated from the halocarbon composition by reducing pressure in the vapor (ullage) space of the collection tank. This vapor stream mixture of released gases pass through a flow control orifice that further cools the vapor stream condensing more liquid phase halocarbon from the mixture. This additional liquid separates from the vapor phase mixture and collects into a liquid trap arrangement of coaxial and helical geometry.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: April 29, 1997
    Assignee: FRC International Inc.
    Inventors: Mark D. Mitchell, Donald P. Sparks, Howard K. Thompson
  • Patent number: 5150577
    Abstract: The present invention relates to a system for recovering and purifying a halocarbon composition, particularly halon. Forming a part of the present system is a liquid heat exchange unit filled with a liquid heat transfer medium. A recovery tank is submerged in the heat transfer medium and is coupled to an impure halocarbon source. The liquid heat exchange unit cools the recovery tank and the impure halocarbon composition within the tank to a sufficient temperature to cause nitrogen gas to separate from the halocarbon composition and form a vapor within the top portion of the recovery tank. Thereafter, the recovery tank is vented and a mixture of separated nitrogen gas and halon vapor is directed through a vent stream having a carbon adsorber. As the separated gas moves through the carbon adsorber, organic halocarbon vapor is adsorbed and effectively removed from the nitrogen gas.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: September 29, 1992
    Inventors: Mark D. Mitchell, David J. Spring
  • Patent number: 4825509
    Abstract: This invention relates to a kit for reinforcing door hinges and, more specifically, to a two-piece kit for strengthening door hinges that may have come loose. The kit comprises a two-piece hinge repair kit that is adapted for use with standard size doors and with standard size hinges. The first piece of the kit is a rectangular U-shaped bracket having an open side or face. This U-shaped bracket is adapted to fit through its open side around the edge of the door. The sides and roof of this U-shaped structure have apertures to be used as connecting holes for attachment to the door and hinge. The roof has a recessed cutout section containing the holes for alignment with the holes of a hinge. The cutout distance down from the top of the roof should approximate the thickness of one leaf of the hinge. Thus, when the hinge is attached to the U-shaped bracket and door, the top surface is level with the face of the bracket and flush with the face of the roof sides adjacent the cutout portion.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: May 2, 1989
    Inventors: Mark D. Mitchell, Olin Jones