Patents by Inventor Christopher M. Palm

Christopher M. Palm 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).

  • One-way self-closing drain plug apparatus
    Patent number: 6634312
    Abstract: The present invention is a drain plug apparatus designed and configured to remain in the drain hole of a conventional pleasure water vessel, regardless of whether the vessel is in or out of the water. This drain plug apparatus includes a body assembly having at least two chambers. One chamber will house a shut-off valve for enabling the boater to open or close the drain plug apparatus. This will render water to escape or prevent entrance to the boat, respectively. A safety assembly is included in the second and each subsequent chamber. The safety assembly will prevent water passage into the water vessel should the user forget to close the drain plug assembly, prior to placing the boat in water.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: October 21, 2003
    Inventors: Jerald R. Warner, Christopher M. Palm
  • One-way self-closing drain plug apparatus
    Publication number: 20020069811
    Abstract: The present invention is a drain plug apparatus designed and configured to remain in the drain hole of a conventional pleasure water vessel, regardless of whether the vessel is in or out of the water. This drain plug apparatus includes a body assembly having at least two chambers. One chamber will house a shut-off valve for enabling the boater to open or close the drain plug apparatus. This will render water to escape or prevent entrance to the boat, respectively. A safety assembly is included in the second and each subsequent chamber. The safety assembly will prevent water passage into the water vessel should the user forget to close the drain plug assembly, prior to placing the boat in water.
    Type: Application
    Filed: October 15, 2001
    Publication date: June 13, 2002
    Inventors: Jerald R. Warner, Christopher M. Palm