Patents by Inventor William W. Niemela

William W. Niemela 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).

  • Deflection indicating adjustable highway straight-edge
    Patent number: 5234281
    Abstract: A deflection indicating adjustable highway straight-edge. The highway straight-edge is designed to effectively level wet concrete by allowing the user to determine when the device is not straight and provides the user with a means of controlled adjustment for straightening.In the preferred embodiment, a laser light beam and electronic sensing device is used to detect deflection of the straight-edge. Undesirable deflection can be eliminated through the external adjustment of steel tension cables inside the straight-edge tube. In an alternative embodiment of the invention, deflection is detected by means of an electrically conducting wire having contact points to indicate that the straight-edge requires adjustment. In another embodiment, a steel wire or string line stretched tightly inside the straight-edge tube indicates deflection requiring adjustment.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: August 10, 1993
    Assignee: Somero Enterprise, Inc.
    Inventors: David W. Somero, Paul J. Somero, William W. Niemela, Philip J. Quenzi