Patents by Inventor Alfred R. Mattis

Alfred R. Mattis 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).

  • Excavator bucket
    Patent number: 5495685
    Abstract: A characteristic feature of the invention lies in that the striking and sic teeth are so arranged on the working edge of the bucket that the distance between the axes of the striking teeth is (3.5-4.5)b while the distance from the working edge to the blade of the striking tooth exceeds the distance from said edge to the blade of the static tooth by (1-3) b where b=width of blade of the striking tooth.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: March 5, 1996
    Assignees: Institut Gornogo Delsa Sibirskogo Otdelenia Akademii Nauk SSSR, Proizvodstvennoe Obidinenie Uralmash
    Inventors: Viktor N. Labutin, Alfred R. Mattis, Sergei V. Shishaev, Vladimir N. Tsvetkov, Alexandr V. Tolmachev, Genrikh K. Boiko
  • Tooth of active-action excavator bucket
    Patent number: 5353532
    Abstract: A characteristic feature of the present invention is that a damping unit is rovided between the casing, impact tool and elements of a pneumatic hammer. The damping unit may have a different design.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: October 11, 1994
    Assignees: Institut Gornogo Dela Sibirskogo Otdelenia Rossiiskoi Akademii Nauk, Proizvodstvennoe Obiedinenie "Uralmash"
    Inventors: Leonid L. Lysenko, Alfred R. Mattis, Sergei V. Shishaev, Genrikh K. Boiko, Alexandr V. Tolmachev, Vladimir N. Tsvetkov, Mikhail S. Druzhinin