Patents by Inventor Douglas A. Hamar

Douglas A. Hamar 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).

  • Publication number: 20070017953
    Abstract: A nailer device having a carriage assembly, a pair of pivotal drive wheels, a nailer assembly and at least one end wheel. The pair of pivotal drive wheels are on the carriage assembly. The at least one end wheel is disposed adjacent an end of the carriage assembly. A drive motor can be associated with at least one of the pair of pivotal drive wheels when the nailer device is operating in an automatic mode. A handle disposed either intermediate of the pivotal drive wheels can be used to move or manually operate the nailer device and move the nailer device to an adjacent row of floorboards to be secured. A pair of adjustable wheels is also provided to adjust the height of the device.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 25, 2007
    Inventor: Douglas Hamar
  • Patent number: 4256205
    Abstract: A device for installation between a brake cable and a caliper brake assembly the device including a base which adjustably receives a threaded elongate shaft upwardly attached to the brake cable end. A nut locks the base and shaft together after adjustment. At the base lower end is a coupler engageable with the bridle of a caliper brake assembly. The coupler is sleeve shaped to permit telescopic passage of the elongate threaded shaft for a wide range of adjustments.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: March 17, 1981
    Inventor: Douglas A. Hamar
  • Patent number: 4233772
    Abstract: A pliable appendage secured to a book page, or other supporting surface, having an illustration thereon with the appendage contributing to the illustration. The appendage is of a pliable nature and shaped to permit entry of the fingertips for the purpose of manipulation to provide an animated illustration. A stiffener in the appendage contributes to lifelike movement of the appendage. The appendage is displaceable from one side of a supporting member to the other to enable use of a single appendage with two different illustrations. The appendage may be of multiple plies of fabric.
    Type: Grant
    Filed: March 15, 1979
    Date of Patent: November 18, 1980
    Inventor: Douglas A. Hamar