Patents by Inventor Jeffrey T. Prince

Jeffrey T. Prince 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: 10668405
    Abstract: Surface or submersible sluiceable systems are disclosed for use in removing hazardous contaminants or radioactive isotopes from a fluid stream, such as a fluid stream from the primary coolant loop or secondary loop of a nuclear reactor system, or a fluid stream from a spent-fuel pool or pond or hazardous or radioactive contaminants in ground water. Generally, this surface or submersible sluiceable system is adapted to be utilized in a surface skid or submersed in the fluid stream, and additionally the vessels are adapted to be sluiced and reused after use, resulting in a potentially stabilized, non-leaching final waste product with a substantially reduced volume for storage or disposal. The system can be utilized with standard ion exchange beads or preferably with inorganic granular media.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: June 2, 2020
    Assignee: MTN Group, LLC
    Inventors: Mark S. Denton, Jeffrey T. Prince
  • Publication number: 20190015762
    Abstract: Surface or submersible sluiceable systems are disclosed for use in removing hazardous contaminants or radioactive isotopes from a fluid stream, such as a fluid stream from the primary coolant loop or secondary loop of a nuclear reactor system, or a fluid stream from a spent-fuel pool or pond or hazardous or radioactive contaminants in ground water. Generally, this surface or submersible sluiceable system is adapted to be utilized in a surface skid or submersed in the fluid stream, and additionally the vessels are adapted to be sluiced and reused after use, resulting in a potentially stabilized, non-leaching final waste product with a substantially reduced volume for storage or disposal. The system can be utilized with standard ion exchange beads or preferably with inorganic granular media.
    Type: Application
    Filed: September 18, 2018
    Publication date: January 17, 2019
    Inventors: Mark S. Denton, Jeffrey T. Prince
  • Patent number: 10106439
    Abstract: Surface or submersible sluiceable system for use in removing hazardous contaminants or radioactive isotopes from a fluid stream, such as a fluid stream from the primary coolant loop or secondary loop of a nuclear reactor system, a fluid stream from a spent-fuel pool or pond or hazardous or radioactive contaminants in ground water. Generally, this surface or submersible sluiceable system is adapted to be utilized in a surface skid or submersed in the fluid stream, and additionally the vessels are adapted to be sluiced and reused after use, resulting in a potentially stabilized, non-leaching final waste product with a substantially reduced volume for storage or disposal. The system can be utilized with any type of media, whether standard ion exchange beads or inorganic granular media.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: October 23, 2018
    Assignee: MTN Group, LLC
    Inventors: Mark S. Denton, Jeffrey T. Prince
  • Publication number: 20170050865
    Abstract: Surface or submersible sluiceable system for use in removing hazardous contaminants or radioactive isotopes from a fluid stream, such as a fluid stream from the primary coolant loop or secondary loop of a nuclear reactor system, a fluid stream from a spent-fuel pool or pond or hazardous or radioactive contaminants in ground water. Generally, this surface or submersible sluiceable system is adapted to be utilized in a surface skid or submersed in the fluid stream, and additionally the vessels are adapted to be sluiced and reused after use, resulting in a potentially stabilized, non-leaching final waste product with a substantially reduced volume for storage or disposal. The system can be utilized with any type of media, whether standard ion exchange beads or inorganic granular media.
    Type: Application
    Filed: November 4, 2015
    Publication date: February 23, 2017
    Inventors: Mark Denton, Jeffrey T. Prince
  • Publication number: 20090008341
    Abstract: A filter assembly having a proximal end portion and a distal end portion is described. The filter assembly may include a feed inlet located at the proximal end portion and a first filter element in fluid communication with the feed inlet, the first filter element extending between the proximal end portion and the distal end portion of the filter assembly. Additionally, the filter assembly may include a second filter element in fluid communication with the first filter element, the second filter element extending between the distal end portion and the proximal end portion of the filter assembly. The filter assembly may also include a flow deflector located at the distal end portion of the filter assembly, the flow deflector being configured to deflect a flowable mixture exiting the first filter element toward the second filter element.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 8, 2009
    Applicant: EnergySolutions Diversified Services, Inc.
    Inventors: Paul S. Townson, Jeffrey T. Prince
  • Patent number: 5437587
    Abstract: A recumbent bilateral reciprocal isokinetic leg exerciser wherein first and second reciprocating members are slidingly coupled to a linear track so that they move with linear bilateral reciprocal motion. Both reciprocating members are coupled to associated hydraulic cylinders so that hydraulic fluid is drawn into or forced out of the hydraulic cylinders as the reciprocating members move along the track. A valve assembly is coupled to the hydraulic cylinders for controlling fluid flow into and out of the hydraulic cylinders so that the reciprocating members move isokinetically. The valve assembly may be set for simultaneous movement of the first and second reciprocating members or for movement of one reciprocating member by itself. To ensure accurate measurement of patient effort, a strain gauge assembly is disposed on each reciprocating member for detecting deformation of the reciprocating member along multiple axes.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: August 1, 1995
    Assignee: Loredan Biomedical
    Inventors: Jeffrey T. Prince, Glen R. Mangseth, Malcolm L. Bond, John Bouwman, Philip T. Dempster
  • Patent number: 5387170
    Abstract: An exercise device having a coupling member movable by the user between rest and end limit of travel positions, a constant weight, and a weight-lifting arm operatively connected to the weight and movable through a vertical plane to move the weight between rest and elevated positions corresponding to the rest and end limit positions of the coupling member. The device further includes a pivot arm pivotally movable through a pivot arm plane having a user-selectable angular orientation to transmit a selectable force between the coupling member and weight dependent upon the selected angular orientation. A link arm is connected between the pivot arm and the weight-lifting arm to transmit force therebetween. The pivot arm is pivotally attached to a rotatable pivot arm support which is selectively rotated by a lever arm moved by an electric motor and screw arrangement to selectively change the angular orientation of the pivot arm plane.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: February 7, 1995
    Assignee: Stairmaster Sports/Medical Products, Inc.
    Inventors: R. Lee Rawls, Jeffrey T. Prince
  • Patent number: 5348519
    Abstract: A horizontal support arm is mounted for upward and downward movement on a vertical support column. An interface unit having an actual mass value is disposed on a free end of the horizontal support arm and is adapted to be grasped and lifted by a human subject. A simulated mass value independent of said actual mass value may be set for the interface unit, and the amount of vertical force exerted by the human subject upon the interface unit is measured. An exercise control unit provides for controlled vertical movement of the interface unit as a function of the simulated mass value such that the interface unit responds to a lifting force by the human subject in a manner that simulates the inertia of an object having a mass value equal to the simulated mass value in a gravitational field.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: September 20, 1994
    Assignee: Loredan Biomedical, Inc.
    Inventors: Jeffrey T. Prince, Robert L. Rawls, Philip T. Dempster, Jody Ono
  • Patent number: 5330397
    Abstract: A recumbent bilateral reciprocal isokinetic leg exerciser wherein first and second reciprocating members are slidingly coupled to a linear track so that they move with linear bilateral reciprocal motion. Both reciprocating members are coupled to associated hydraulic cylinders so that hydraulic fluid is drawn into or forced out of the hydraulic cylinders as the reciprocating members move along the track. A valve assembly is coupled to the hydraulic cylinders for controlling fluid flow into and out of the hydraulic cylinders so that the reciprocating members move isokinetically. The valve assembly may be set for simultaneous movement of the first and second reciprocating members or for movement of one reciprocating member by itself. To ensure accurate measurement of patient effort, a strain gauge assembly is disposed on each reciprocating member for detecting deformation of the reciprocating member along multiple axes.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: July 19, 1994
    Assignee: Loredan Biomedical, Inc.
    Inventors: Jeffrey T. Prince, Glen R. Mangseth, Malcolm L. Bond, John Bouwman, Philip T. Dempster
  • Patent number: 5308303
    Abstract: An exercise device having a coupling member movable by the user between rest and end limit of travel positions, a constant weight, and a weight-lifting arm operatively connected to the weight and movable through a vertical plane to move the weight between rest and elevated positions corresponding to the rest and end limit positions of the coupling member. The device further includes a pivot arm pivotally movable through a pivot arm plane having a user-selectable angular orientation to transmit a selectable force between the coupling member and weight dependent upon the selected angular orientation. A link arm is connected between the pivot arm and the weight-lifting arm to transmit force therebetween. The pivot arm is pivotally attached to a rotatable pivot arm support which is selectively rotated by a lever arm moved by an electric motor and screw arrangement to selectively change the angular orientation of the pivot arm plane.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: May 3, 1994
    Assignee: Stairmaster Sports/Medical Products, Inc.
    Inventors: R. Lee Rawls, Jeffrey T. Prince