Patents by Inventor Scott A. Sprague

Scott A. Sprague 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).

  • Pipe repair coupling tool and method of use
    Patent number: 10760726
    Abstract: A pipe repair tool and method of use, for use with a coupler of the type having a first end and a second end, the first end having an outwardly projecting flange, such that the repair tool includes a cuff portion having a leading edge and a trailing edge, the cuff engaging a sleeve portion of the coupler with the leading edge of the cuff facing the flange of the first end of the coupler. The tool may include an outwardly projecting first leading ear having a pry surface near the leading edge of the cuff, the pry surface facing the trailing edge of the cuff such that force applied to the pry surface urges the leading edge of the tool toward the flange of the first end of the coupler.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 1, 2020
    Inventor: Scott Sprague
  • PIPE REPAIR COUPLING TOOL AND METHOD OF USE
    Publication number: 20190032836
    Abstract: A pipe repair tool and method of use, for use with a coupler of the type having a first end and a second end, the first end having an outwardly projecting flange, such that the repair tool includes a cuff portion having a leading edge and a trailing edge, the cuff engaging a sleeve portion of the coupler with the leading edge of the cuff facing the flange of the first end of the coupler. The tool may include an outwardly projecting first leading ear having a pry surface near the leading edge of the cuff, the pry surface facing the trailing edge of the cuff such that force applied to the pry surface urges the leading edge of the tool toward the flange of the first end of the coupler.
    Type: Application
    Filed: July 26, 2017
    Publication date: January 31, 2019
    Inventor: Scott Sprague
  • Method of manufacture of chalcogenide-based photovoltaic cells
    Patent number: 9117965
    Abstract: The invention is a method of forming a cadmium sulfide based buffer on a copper chalcogenide based absorber in making a photovoltaic cell. The buffer is sputtered in two steps the first being at low rates or relatively high pressures and the second at high rates or relatively low pressures. The resulting cell has good efficiency and according to one embodiment is characterized by a narrow interface between the absorber and buffer layers. The buffer is further characterized according to a second embodiment by a relatively high oxygen content.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: August 25, 2015
    Inventors: Melissa A. Mushrush, Todd R. Bryden, Kevin P. Capaldo, Scott A. Sprague
  • METHOD OF MANUFACTURE OF CHALCOGENIDE-BASED PHOTOVOLTAIC CELLS
    Publication number: 20140283907
    Abstract: The invention is a method of forming a cadmium sulfide based buffer on a copper chalcogenide based absorber in making a photovoltaic cell. The buffer is sputtered in two steps the first being at low rates or relatively high pressures and the second at high rates or relatively low pressures. The resulting cell has good efficiency and according to one embodiment is characterized by a narrow interface between the absorber and buffer layers. The buffer is further characterized according to a second embodiment by a relatively high oxygen content.
    Type: Application
    Filed: October 22, 2012
    Publication date: September 25, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Melissa A. Mushrush, Todd R. Bryden, Kevin P. Capaldo, Scott A. Sprague