Patents by Inventor William T. Fletcher

William T. Fletcher 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: 10801466
    Abstract: A closed system that captures energy derived from the head differential rather than open-water flows velocities while reducing potential environmental damages and costly maintenance due to bio-fouling. The continuously derived energy system utilizes an offshore bladder in communication with both a primary onshore bladder and a supplemental onshore bladder. Tidal energy is captured by turbines as fluid is transferred between the bladders. In addition, the system continuously extracts energy by diverting fluid to and from the supplemental onshore bladder during periods of near-high-ride and near-low-tide, during which the pressure differential between the offshore bladder and the primary onshore bladder becomes inefficient for energy production.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: October 13, 2020
    Assignee: University of North Florida Board of Trustees
    Inventors: Donald Thomas Resio, William T. Fletcher, Michelle Ann Vieira
  • Patent number: 10514020
    Abstract: A closed system that captures energy derived from the head differential rather than open-water flows velocities while reducing potential environmental damages and costly maintenance due to bio-fouling. The continuously derived energy system utilizes an offshore bladder in communication with both a primary onshore bladder and a supplemental onshore bladder. Tidal energy is captured by turbines as fluid is transferred between the bladders. In addition, the system continuously extracts energy by diverting fluid to and from the supplemental onshore bladder during periods of near-high-ride and near-low-tide, during which the pressure differential between the offshore bladder and the primary onshore bladder becomes inefficient for energy production.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 24, 2019
    Assignee: University of North Florida Board of Trustees
    Inventors: Donald Thomas Resio, William T. Fletcher, Michelle Ann Vieira
  • Patent number: 4567078
    Abstract: A method and apparatus for producing a fibrous material product by advancing a mat of glass fibers arranged in laminations extending at least substantially parallel to opposite major surfaces of the mat along a gap extending between successive driven conveyors which engage the opposite major surfaces of the mat to control the advance of the mat along the gap, and driving the conveyors at progressively slower speeds along the gap so that the laminations are deformed in at least two separate stages into a reorientation in which at least a major portion of the laminations extend across the thickness of the mat. The resulting product has an improved compression strength.
    Type: Grant
    Filed: September 11, 1984
    Date of Patent: January 28, 1986
    Assignee: Fiberglas Canada Inc.
    Inventors: Phillip W. Blackmore, William T. Fletcher, Terry B. Burn
  • Patent number: 4094130
    Abstract: Apparatus for compressing and packaging articles, e.g. insulation batts, comprises a bomb bay door arrangement for receiving the articles in succession and depositing the articles in a first position in successive batches each comprising a stack of the articles, a compression chamber, a movable support for displacing the batches in succession from said first position to a second position in the compression chamber, a lifting fork for displacing a first one of the batches from the second position to a third position in the compression chamber to allow the displacement of the next succeeding batch from the first position to the second position, a vertical ram for compressing the first batch and the next succeeding batch together in the compression chamber, and a horizontal ram for discharging the compressed articles through a bagging snout for applying a bag to the compressed articles.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: June 13, 1978
    Assignee: Fiberglas Canada Limited
    Inventors: Norman Kelly, William T. Fletcher, Derek J. Holden, James J. Welsh
  • Patent number: D488484
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: April 13, 2004
    Inventor: William T. Fletcher