Patents by Inventor Timmo Sippus

Timmo Sippus 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).

  • Hydraulic impact hammer
    Patent number: 5370193
    Abstract: A hydraulic impact hammer comprises a protective casing, a hydraulically operated piston and a member for guiding the piston, and an impact member and a member for guiding the impact member. The piston-guiding member and the member guiding the impact member are made separate with respect to each other in order to prevent propagation of the tension wave reflected from the impact member. However, the piston-guiding member and the member guiding the impact member are each connected to the protective housing through at least one attenuating element.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: December 6, 1994
    Assignee: Bretec OY
    Inventors: Timmo Sippus, Seppo Jurvanen
  • Hydraulic impact hammer
    Patent number: 5325929
    Abstract: A hydraulic impact hammer comprises a protective casing, a hydraulically operated piston and a member for guiding the piston, and an impact member and a member for guiding the impact member. The piston-guiding member and the member guiding the impact member are made separate with respect to each other in order to prevent propagation of the tension wave reflected from the impact member. However, the piston-guiding member and the member guiding the impact member are each connected to the protective housing through at least one attenuating element.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: July 5, 1994
    Assignee: Bretec Oy
    Inventors: Timmo Sippus, Seppo Jurvanen