Patents by Inventor Tommy R. Shedd

Tommy R. Shedd 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: 8574603
    Abstract: The invention is a method and kit for conducting a rapid toxicity test. Methods and kits according to the invention include an animal or plant species in diapause.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: November 5, 2013
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Tommy R Shedd, Mark W Widder, Eugene Hull
  • Publication number: 20120156715
    Abstract: An embodiment of the invention provides a system for toxicity identification in water. The system includes a cell maintenance device having a cooling component that maintains an internal storage area of the cell maintenance device within a temperature range of 4 degrees Celsius to 25 degrees Celsius. Fluidic biochips in the cell maintenance device include one or more testing components for receiving living poikilothermic cells and at least one water test sample. A test unit receives the fluidic biochips and monitors a response to exposure of the poikilothermic cells to the water test sample. In at least one embodiment, the test unit is able to identify the degree of toxicity of the water sample within 60 minutes of receiving the fluidic biochip.
    Type: Application
    Filed: June 9, 2011
    Publication date: June 21, 2012
    Inventors: Mark W. Widder, Linda Brennan, David Trader, Tommy R. Shedd, William H. van der Schalie
  • Patent number: 7702473
    Abstract: A submersible biomonitoring system for monitoring water quality in situ includes a submersible chamber constructed of a di-electric material and sized to allow suitable signals from one or more aquatic organisms to be received by eliminating cross-talk between cells while allowing ambient conditions to be maintained inside the chamber. The aquatic organism exhibits ventilatory behavior and body movement sensitive to water quality which manifest as electrical signals picked up by electrodes and communicated to a pre-amplifier that conditions the signals for communication to a land-based amplifier and/or controller that is used to interpret the signals to determine when the water to which the organism is exposed has caused physiological stress to the organism.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: April 20, 2010
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Mark W. Widder, Tommy R. Shedd, Mark W. Brown, Murray S. Swanson
  • Publication number: 20080262739
    Abstract: A submersible biomonitoring system for monitoring water quality in situ includes a submersible chamber constructed of a di-electric material and sized to allow suitable signals from one or more aquatic organisms to be received by eliminating cross-talk between cells while allowing ambient conditions to be maintained inside the chamber. The aquatic organism exhibits ventilatory behavior and body movement sensitive to water quality which manifest as electrical signals picked up by electrodes and communicated to a pre-amplifier that conditions the signals for communication to a land-based amplifier and/or controller that is used to interpret the signals to determine when the water to which the organism is exposed has caused physiological stress to the organism.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 23, 2008
    Inventors: Mark W. Widder, Tommy R. Shedd, Mark W. Brown, Murray S. Swanson
  • Patent number: 7094417
    Abstract: The invention is a method and kit for conducting a rapid toxicity test. Methods and kits according to the invention include an animal or plant species in diapause.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: August 22, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Tommy R. Shedd, Mark W. Widder, Eugene Hull
  • Patent number: 6988394
    Abstract: A portable automated biomonitoring system for monitoring water quality includes an exposure chamber for housing an aquatic organism and a water inlet for directing water to the exposure chamber. The aquatic organism has ventilatory behavior and body movement sensitive to water quality. Electrodes sense electrical signals produced by the organism during its ventilatory behavior and body movement, and a controller responsive to signals from the electrodes determines a plurality of ventilatory parameters based on the signals. The ventilatory parameters are compared with corresponding thresholds to determine when the water to which the organism is exposed has caused physiological stress to the organism. The water being evaluated may be recirculated through the system for further analysis.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: January 24, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Tommy R. Shedd, Mark W. Widder, Mark W. Brown, Murray S. Swanson
  • Publication number: 20040206162
    Abstract: A portable automated biomonitoring system for monitoring water quality includes an exposure chamber for housing an aquatic organism and a water inlet for directing water to the exposure chamber. The aquatic organism has ventilatory behavior and body movement sensitive to water quality. Electrodes sense electrical signals produced by the organism during its ventilatory behavior and body movement, and a controller responsive to signals from the electrodes determines a plurality of ventilatory parameters based on the signals. The ventilatory parameters are compared with corresponding thresholds to determine when the water to which the organism is exposed has caused physiological stress to the organism. The water being evaluated may be recirculated through the system for further analysis.
    Type: Application
    Filed: February 3, 2004
    Publication date: October 21, 2004
    Inventors: Tommy R. Shedd, Mark W. Widder, Mark W. Brown, Murray S. Swanson
  • Publication number: 20040013608
    Abstract: The invention is a method and kit for conducting a rapid toxicity test. Methods and kits according to the invention include an animal or plant species in diapause.
    Type: Application
    Filed: June 5, 2003
    Publication date: January 22, 2004
    Inventors: Tommy R. Shedd, Mark W. Widder, Eugene Hull
  • Publication number: 20020039725
    Abstract: The invention is a method and kit for conducting a rapid toxicity test. Methods and kits according to the invention include an animal or plant species in diapause.
    Type: Application
    Filed: August 16, 2001
    Publication date: April 4, 2002
    Inventors: Tommy R. Shedd, Mark W. Widder, Eugene Hull