Patents by Inventor John Martin Schaefer

John Martin Schaefer 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).

  • Double seal kayak hatch
    Patent number: 10479450
    Abstract: The present invention provides a sealing device for an opening. The device includes a body that has a first side and a second side. A passageway is formed through the body such that the passageway has a first end adjacent to the first side and a second end that is adjacent to the second side. A sealing member is provided that includes an outer gasket and an inner gasket. The outer gasket is positioned adjacent the first side and the inner gasket is positioned adjacent the second side. A seal connector connects the inner gasket and the outer gasket and the seal connector passes through the passageway. In this way, the inner gasket and the outer gasket are mechanically attached to the ring. The sealing device is configured for use in such applications as sealing the cargo opening on the deck of a kayak.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: November 19, 2019
    Inventors: Gerald Boyd Zinnbauer, John Martin Schaefer, Lee Patrick Ward
  • DOUBLE SEAL KYACK HATCH
    Publication number: 20150259039
    Abstract: The present invention provides a sealing device for an opening. The device includes a body that has a first side and a second side. A passageway is formed through the body such that the passageway has a first end adjacent to the first side and a second end that is adjacent to the second side. A sealing member is provided that includes an outer gasket and an inner gasket. The outer gasket is positioned adjacent the first side and the inner gasket is positioned adjacent the second side. A seal connector connects the inner gasket and the outer gasket and the seal connector passes through the passageway. In this way, the inner gasket and the outer gasket are mechanically attached to the ring. The sealing device is configured for use in such applications as sealing the cargo opening on the deck of a kayak.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 17, 2015
    Inventors: Gerald M. Zinnbauer, John Martin Schaefer, Lee Patrick Ward