Patents Assigned to Vynalam, Ltd.
  • Air-trapping insoles
    Patent number: 4590689
    Abstract: A cushion-like, shock-absorbent insole for footwear comprises two vinyl sheets forming an airtight compartment and sealing therein one or more sheets of resilient foam. Vent holes arranged in at least one of the vinyl sheets, preferably at the heel and metatarsal areas, act as metering valves in conjunction with the inside surface of the shoe sole so that air trapped in the foam material cannot instantaneously escape and both cushioning and massaging are provided.
    Type: Grant
    Filed: August 30, 1984
    Date of Patent: May 27, 1986
    Assignee: Vynalam, Ltd.
    Inventor: David Rosenberg