Patents by Inventor Kari Tantarimaki

Kari Tantarimaki 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).

  • Method and an arrangement for controlling the supply of air into a rock drilling machine
    Patent number: 5409072
    Abstract: A method and an arrangement for controlling the supply of air into a rock drilling machine. In the method, the air supply of an air compressor in a power unit operated by a diesel engine is adjusted so that when the percussion pressure of the percussion device of the rock drilling machine is high, the amount of air supplied by the compressor is small, and vice versa. In the arrangement, the pressure fluid pump of the hydraulic motor of the compressor is an adjustable-displacement pump, the volume flow of the pressure fluid supplied by the pump being adjusted inversely proportionally to the pressure of the supply conduit of the percussion device of the rock drilling machine.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: April 25, 1995
    Assignee: Tamrock Oy
    Inventors: Pentti Enlund, Kari Tantarimaki