Patents by Inventor Will Weldon Mathews

Will Weldon Mathews 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: 8661816
    Abstract: A hybrid internal combustion engine having a cylinder, a piston disposed within the cylinder, the piston constructed and arranged to reciprocate within the cylinder, and a combustion chamber defined by the cylinder and the top of the piston. The hybrid internal combustion engine also includes an exhaust manifold and a heat exchanger disposed within the exhaust manifold. A pump disposed between the heat exchanger and a fluid reservoir is provided to deliver fluid from the reservoir to the heat exchanger, whereby the fluid in the heat exchanger is heated and turned into high pressure gas (HPG) when the combustion gases are exhausted from the combustion chamber via the exhaust manifold. The resulting HPG may then be introduced into the combustion chamber to provide a HPG power stroke.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: March 4, 2014
    Inventors: Will Weldon Mathews, Harry Bruce Crower, Tibor Kiss
  • Publication number: 20110048330
    Abstract: An easily installed economical device to control in residence kitty litter odor can be constructed using an existing dryer vent system. When the cat enters the litter box enclosure, a sensor detects the cat's presence. The detector control circuits turn on a small fan to vent the obnoxious odor out through the dryer vent. The vent fan continues to operate for an adjustable set time period to insure all the odor is vented.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 3, 2011
    Inventor: Will Weldon Mathews