Patents by Inventor John E. Emberson

John E. Emberson 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).

  • Drain suited for installation in wooden floors
    Patent number: 4943100
    Abstract: A drain suitable for installation in a wooden floor comprises a body, a grate frame secured to the top of the body, a grate mounted in the frame and a projecting annular flange secured between the body and the grate frame for screw attachment to a deck of the floor.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: July 24, 1990
    Assignee: Enpoco Limited
    Inventor: John E. Emberson
  • Drainage element
    Patent number: 4832375
    Abstract: A drainage element is provided comprising a generally cylindrical body into which a removable gasket is inserted in the lower end thereof. Located above the gasket are pipe stops which project inwardly from the interior wall of the body. The drainage element is useful with a drain pipe which is inserted into the gasket to butt the pipe stops or the gasket can be removed, the pipe stops broken away from the body and the drain used with a drain pipe of which the upper edge butts the lower edge of the body.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: May 23, 1989
    Assignee: Enpoco Limited
    Inventor: John E. Emberson