Patents Assigned to Evolutionary Designs, Inc.
  • Roller skate shock absorber system
    Patent number: 6039329
    Abstract: A suspension system for a skate including a shoe and a truck device. The suspension system includes a four bar linkage having a forward mount connectable to the shoe; a rearward mount connectable to the shoe, a first double pivot mechanism interconnecting the forward mount with the truck device, and a second double pivot mechanism interconnecting the rearward mount with the truck device. A shock absorber subsystem biases the position of the truck device relative to the shoe.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: March 21, 2000
    Assignee: Evolutionary Designs, Inc.
    Inventors: Clay Allen Burns, Peter Madelaire Nielsen, John Aloysius Sullivan, Frederic Ballou-Viaux Sullivan