Patents by Inventor Sulo Ranne

Sulo Ranne 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).

  • Planetary transmission based on friction
    Patent number: 4691595
    Abstract: A friction planetary transmission has a sun roller planetary roller and an elastically deformable outer periphery. The planetary rollers are attached to shafts which have a limited amount of radial movement. The outer periphery deforms to exert a frictional contact pressure on the planetary rollers such that a torque can be transmitted. The torque is adjustable by a circular disk which fits inside the outer periphery to regulate the amount of deformation. The circular disk can be moved axially to adjust the torque.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: September 8, 1987
    Assignee: Orion-yhtyma Oy
    Inventors: Ilmari Kinanen, Sulo Ranne