Patents by Inventor Lauri Niemiaho

Lauri Niemiaho 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).

  • Quick coupling attachment for operating tools
    Patent number: 4663866
    Abstract: Quick-action attachment for working implements comprising a first coupling part disposed on the working implement or, for example, the operating arm of a working machine and having at least a pair of parallel, undercut, mutually facing surfaces, and comprising a second coupling part are disclosed. On the operating arm of the working machine or on the working implement and having a pair of parallel, bevelled, mutually outwardly facing surfaces are adapted to be brought into engagement with the undercut surfaces of the first coupling part.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: May 12, 1987
    Inventors: Bengt Karlsson, Lauri Niemiaho