Patents by Inventor Richard G Lacus

Richard G Lacus 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).

  • Flexible diaphragm for clearing obstruction in a plumbing fixture
    Patent number: 6804838
    Abstract: A method and apparatus for freeing an obstruction from a plumbing fixture using a flexible diaphragm. The diaphragm is constructed of flexible membrane and is adhered to a top ring of the plumbing fixture. The diaphragm is operated by allowing air into the space between the diaphragm and the wastewater through an air valve and then pushing and pulling the diaphragm to create forces of air that dislodge the obstruction.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: October 19, 2004
    Inventor: Richard G Lacus
  • Flexible diaphragm for clearing obstruction in a plumbing fixture
    Publication number: 20040154086
    Abstract: A method and apparatus for freeing an obstruction from a plumbing fixture using a flexible diaphragm. The diaphragm is constructed of flexible membrane and is adhered to a top ring of the plumbing fixture. The diaphragm is operated by allowing air into the space between the diaphragm and the wastewater through an air valve and then pushing and pulling the diaphragm to create forces of air that dislodge the obstruction.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 12, 2004
    Inventor: Richard G. Lacus