Patents by Inventor John Aloysius Sullivan

John Aloysius Sullivan 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).

  • 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
  • Patent number: 5823543
    Abstract: A roller skate shock absorber system in at least two double pivot mechanisms spaced longitudinally from front to back along a skate shoe; a truck device including a plurality of wheels interconnected with the double pivot mechanisms; each of the double pivot mechanisms including a first pivot mounted to the skate shoe, a pivot member rotatably connected to the first pivot and having a second pivot rotatably attached to the truck device; and at least one resilient member disposed between the skate shoe and the truck mechanism for biasing at least one of the pivot mechanisms with its first and second pivots generally vertically aligned to provide a firm push-off force.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: October 20, 1998
    Assignees: John Aloysius Sullivan, Frederick Ballou-Viaux Sullivan
    Inventors: Clay Allen Burns, Peter Madelaire Nielsen, John Aloysius Sullivan, Frederick Ballou-Viaux Sullivan