Patents Assigned to Sport Floor Design, Inc.
  • Patent number: 4879857
    Abstract: For a sports or athletic floor having an upper playing surface on a subfloor over a solid base such as a cement slab or the like, the subfloor is supported only by a series of individual resilient shock-absorbing members uniformly located between the subfloor and the solid base to provide the requisite air space under the subfloor and to provide shock-absorbing and levelling of the sports floor.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: November 14, 1989
    Assignee: Sport Floor Design, Inc.
    Inventors: David L. Peterson, Michael J. Peterson