Patents by Inventor Carlos Schoolcraft

Carlos Schoolcraft 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).

  • Compressed air drain opening device
    Publication number: 20050132479
    Abstract: An air plunger is described. The air plunger comprises an upper barrel and a lower barrel slidably received by the upper barrel. An air seal is fixed to the lower barrel and slidably engages with the upper barrel. A nozzle is attached to the lower barrel opposite to the upper barrel. A stop mechanism prohibits the upper barrel from disassociating with the lower barrel.
    Type: Application
    Filed: December 18, 2003
    Publication date: June 23, 2005
    Inventors: J. Leaphart, C. Leaphart, Carlos Schoolcraft, Michael Ernst