Patents Assigned to Offspring, LLC
  • Constant restoring force support surface
    Patent number: 6487738
    Abstract: An all mechanical support surface that tracks the flotation properties of a true fluid and utilizes a series of constant restoring force springs connecting reciprocating pistons which have supporting surfaces with multiple degrees of freedom to define a user supporting surface that assumes the shape of the user and minimizes the force differential on different areas of the user's skin.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: December 3, 2002
    Assignee: Offspring, LLC
    Inventor: Robert H. Graebe