Patents by Inventor Ralph A. Winn

Ralph A. Winn 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: 5539020
    Abstract: A soft, tacky polysiloxane elastomer characterized as having: a tackiness of 10-450 grams as determined by a polyken probe tack tester or 0-10 cm (0-4 inches) as determined by a rolling ball tack tester and a tensile strength of 0.14-5.52 mega Pascals (20-800 pounds/square inch), a minimum elongation of 250-1100 percent and a tear strength of 0.88-35.2 kN/m (5-200 pound/square inch) The soft, tacky elastomer can be made into various cushioning devices, with or without a topcover. Representative cushioning devices include an arch support pad, a metatarsal pad, a heel cushion, sheet padding, a full-length insole, a three quarter length insole, a half insole, a toe-crest pad, a heel liner, an elbow pad, a corn pad, a callus pad, a blister pad, a bunion pad or a toe pad.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: July 23, 1996
    Assignee: Schering-Plough HealthCare Products, Inc.
    Inventors: Ronald L. Bracken, Ralph A. Winn, Norman L. Riley