Patents by Inventor Timothy Steeper

Timothy Steeper 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).

  • Rotating drum variable depth sampler
    Publication number: 20060175089
    Abstract: A sampling device for collecting depth-specific samples in silt, sludge and granular media has three chambers separated by a pair of iris valves. Rotation of the middle chamber closes the valves and isolates a sample in a middle chamber.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 10, 2006
    Inventors: Thomas Nance, Timothy Steeper