Patents by Inventor Craig A. Kennedy

Craig A. Kennedy 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).

  • Patent number: 5927957
    Abstract: New plunger having a cylindrical hollow body 20 or 20B, a handle 30, 30A, or 30B, an outlet hose 40, an outlet tip 42, and a valve or flap 50, 60, or 70 that is able to control the air flow within the hollow 25 of the cylindrical body 20 or 20B. Valve or flap 50, 60, or 70 is moved into a closed position so that air is forced out of the front of the plunger and towards a clogged or stopped area 82 or 92 and is moved into an open position so that air enters the back of the plunger and passes valve or flap 50, 60, or 70 so that water and/or clogging material is not drawn or sucked into the interior of the plunger. First embodiment plunger 10 discloses a flexible valve flap 50 that compresses against the inner wall of the cylindrical body 20 in a closed position and flexes outwardly and away from piston plate 38 in an open position.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: July 27, 1999
    Inventors: Craig A. Kennedy, Daniel L. Poole
  • Patent number: RE38291
    Abstract: New A plunger having a cylindrical hollow body 20 or 20B , a handle 30, 30A, or 30B , an outlet hose 40 , an outlet tip 42 , and a valve or flap 50, 60, or 70 structure that is able to controls the air flow within the hollow 25 portion of the cylindrical body 20 or 20B is shown. The valve or flap 50, 60, or 70 structure is moved into a closed position so that air is forced out of the front of the plunger and towards a clogged or stopped area 82 or 92 and is moved into an open position so that air enters the back of the plunger and passes proceeds past the valve or flap 50, 60, or 70 structure, so that water and/or clogging material is not drawn or sucked into the interior of the plunger. F The hose attached to the cylindrical body is flexible and is smaller in diameter than the drain throat of a plumbing fixture allowing the hose to be placed into a clogged area.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: October 28, 2003
    Inventors: Craig A. Kennedy, Daniel L. Poole