Patents by Inventor Andrew E. Patterson

Andrew E. Patterson 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: 7424375
    Abstract: A method and apparatus for tidal seepage meters. The meter includes a power supply, controller, motor, selector valve, seepage chamber and at least two sample containers. The controller is operatively coupled to the power supply and is capable of controlling the power supply in accordance with a sampling schedule. The motor is operatively coupled to the power supply and is capable of receiving power from the power supply in accordance with the sampling schedule. The selector valve includes an input port and at least two outlet ports and is operatively coupled to the motor. The selector valve is capable of selecting an output valve in accordance with the sampling schedule. The seepage chamber is operatively coupled to the selector valve, capable of receiving seepage and inputting seepage to the selector valve via the input port. The sample containers are operatively coupled to the selector valve and receive seepage.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: September 9, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David B. Chadwick, Andrew E. Patterson, Gregory J. Groves
  • Patent number: 6993437
    Abstract: A method and apparatus for tidal seepage meters. The meter includes a power supply, controller, motor, selector valve, seepage chamber and at least two sample containers. The controller is operatively coupled to the power supply and is capable of controlling the power supply in accordance with a sampling schedule. The motor is operatively coupled to the power supply and is capable of receiving power from the power supply in accordance with the sampling schedule. The selector valve includes an input port and at least two outlet ports and is operatively coupled to the motor. The selector valve is capable of selecting an output valve in accordance with the sampling schedule. The seepage chamber is operatively coupled to the selector valve, capable of receiving seepage and inputting seepage to the selector valve via the input port. The sample containers are operatively coupled to the selector valve and receive seepage.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: January 31, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David B. Chadwick, Gregory Jon Groves, Andrew E. Patterson
  • Patent number: 6190919
    Abstract: A system for controlling the deglycerolization of red blood cells includes a cell sorter having multiple fluid channels each having a unique cross-sectional area for directing a fluid mixture consisting essentially of a saline solution and a plasma solution having glycerized red blood cell products through one or more of the fluid channels based on the sizes of the red blood cell products. An optical energy source illuminates the fluid mixture in the cell sorter, whereupon an optical detector generates a data signal in response to receiving light signals that propagate through the fluid mixture. A processor generates a control signal in response to receiving the data signal that is used by a servo-controlled device to control the ratio of the saline and plasma solutions in the fluid mixture so that the red blood cell products substantially flow only through one or more of the fluid channels having particular cross-sectional areas.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: February 20, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Gary F. Mastny, Hugh D. Copeland, Andrew E. Patterson
  • Patent number: 6130743
    Abstract: A colorimetric red blood cell sensor provides an automatic system for deting and preventing the further mixing of red blood cells and plasma. The sensor includes a processor that controls blue and red light sources so that they collectively generate pulsed blue and red light signals that are directed through blood serum held in an optically transparent container. The red and blue signals are 180 degrees out of phase, and hence staggered, with respect to each other. A photodetector system detects the pulsed red and blue light signals and generates output signals representing the intensities of the staggered signals received by the photodetector system. A microprocessor determines the ratio of the intensities of the red and blue light signals detected by the photodetector system. If the ratio exceeds a limit, the microprocessor generates a fluid control signal that prevents further mixing of red blood cells and plasma.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: October 10, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Hugh D. Copeland, Gary F. Mastny, Andrew E. Patterson