Patents by Inventor Dwain Anderson

Dwain Anderson 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: 7607373
    Abstract: A hand tool device incorporates a fluid operated mechanism actuable by a plunger pressurizing a reservoir to force fluid past a resiliently biased valve to a fluid filled cylinder accommodating a piston carrying a contact member for clamping a work piece in the manner of an adjustable wrench or pliers. Continued operation of the plunger increases the pressure applied to the work piece.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: October 27, 2009
    Assignee: Francis International Inc.
    Inventor: Dwain Anderson
  • Publication number: 20080289457
    Abstract: A hand tool device incorporates a fluid operated mechanism actuable by a plunger pressurizing a reservoir to force fluid past a valve to a fluid filled cylinder accommodating a piston carrying a contact member for clamping a work piece in the manner of a wrench. Continued operation of the plunger increases the pressure applied to the work piece.
    Type: Application
    Filed: May 24, 2007
    Publication date: November 27, 2008
    Inventor: Dwain Anderson
  • Publication number: 20080289452
    Abstract: A hand tool device incorporates a fluid operated mechanism actuable by a plunger pressurizing a reservoir to force fluid past a resiliently biased valve to a fluid filled cylinder accommodating a piston carrying a contact member for clamping a work piece in the manner of an adjustable wrench or pliers. Continued operation of the plunger increases the pressure applied to the work piece.
    Type: Application
    Filed: May 23, 2008
    Publication date: November 27, 2008
    Inventor: Dwain Anderson
  • Publication number: 20070109910
    Abstract: In a method for tinting caulking, a quantity of caulking is sealed within and toward one end of an elongate, pliable casing. The unfilled portion of the casing is then unsealed, and a quantity of tinting agent, such as paint, is introduced into the casing, which is then resealed. The caulking and tinting are then intermixed by manual kneading of the casing until the caulking has acquired a desired colour. The sealed end of the filled portion of the casing is then unsealed, the casing is inserted into a caulking cartridge with the filled portion disposed toward the nozzle end of the cartridge, and a slidable plug is inserted into the cartridge. The cartridge may is then loaded in a conventional caulking gun, which upon actuation urges the plug against the casing so as to force the tinted caulking out of the unsealed casing and through the cartridge nozzle.
    Type: Application
    Filed: November 15, 2005
    Publication date: May 17, 2007
    Inventors: Dwain Anderson, David Schellenberg, Cindy Gronlund
  • Patent number: 6973857
    Abstract: An adjusting device for a tool includes a body with two ends and a fluid filled passageway, which extends between the ends, one end of the body cooperates with a work piece. An actuating member is movably connected to one end of the body, communicates with the fluid in the passageway, and has a surface, which cooperates with the work piece. Another actuating member is movably connected to the other end of the body and communicates with the fluid, and moves the fluid against the first actuating member to extend it. The fluid is locked against the first actuating member so that it retains the work piece in the body end.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: December 13, 2005
    Inventor: Dwain Anderson