Patents Assigned to Rino Solberg
  • Apparatus for grinding plane, annular surfaces, especially on faying rings in gate valves
    Patent number: 4287688
    Abstract: In an apparatus for grinding plane, annular surfaces such as for lapping faying rings of gate valves, cylindrical grinding heads carrying grinding paper detachably adhering thereto, are mounted for free individual rotation in a rotating disk, so that by friction on the annular surface they rotate like planet wheels. The disk is detachably mounted on a spherical head on a shaft and connected thereto by a rockable diametrical entraining pin, and the shaft is connected to a driving shaft by sprocket wheels and chain.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: September 8, 1981
    Assignee: Rino Solberg
    Inventor: Per Jensen