Patents Assigned to Spherepoint, Inc.
  • Patent number: 5330407
    Abstract: A controlled mechanical friction principle is disclosed utilizing elastomeric spheres. The spheres are grouped in radial or nested formation between at least two working surfaces and contained in such a manner that compression sliding friction occurs between spheres. A frictional resistance adjustment is provided by means controlling the degree to which the elastomeric spheres are compressed. A walled container has pliable balls arranged as a single covering therein against a back surface, and an opposing piston is structured to move freely within the container walls. The degree of adjustable contact made by the cylinder inner wall surfaces against the spheres regulates the applied frictional resistance. Variable degrees of power transfer or brakeage is developed between the container inner surface wall and the opposing cylinder inner surface wall with the compressed spheres as the passage medium.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: July 19, 1994
    Assignee: Spherepoint, Inc.
    Inventor: Mark J. Skinner