Patents by Inventor Rodney J. Karppinen

Rodney J. Karppinen 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).

  • Orbital sander with liquid dispenser housing
    Patent number: 7364499
    Abstract: An orbital sander liquid dispenser that includes a head with a hollow fluid distribution ring attached thereto that includes a plurality of jet openings formed on its bottom surface design to spray a desired liquid onto the working surface. A liquid is pumped by means of a submerged electric pump to the head and into the ring from a reservoir. An optional foot switch is provided for control the flow of liquid to the head.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: April 29, 2008
    Inventors: Rodney J. Karppinen, Timothy D. Lindula
  • Orbital sander with liquid dispenser
    Patent number: 7189154
    Abstract: An orbital sander liquid dispenser that includes an adapter that attaches to the head on a sander. Attached to the adapter is a hollow fluid distribution ring with jet openings formed on its bottom surface design to spray a desired liquid onto the working surface. A liquid is pumped by means of a submerged electric pump to the adapter and into the ring from a reservoir. An optional foot switch is provided for control the flow of liquid to the adapter. The adapter may be attached to a pneumatic or an electric sander. Holes are formed on the adapter through which the air conduit and exhaust valve extend to attach the adapter to the sander head.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 13, 2007
    Inventors: Rodney J. Karppinen, Timothy D. Lindula