Patents by Inventor Norman R. Legge

Norman R. Legge 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).

  • Elastomeric triblock copolymer compositions and articles made therewith
    Patent number: 5407715
    Abstract: An elastomeric composition is formed of at least two, and preferably three, S-EB-S elastomeric triblock copolymers having different solution viscosity/copolymer concentration relationships, and a sufficient amount of a mineral oil plasticizer to achieve excellent tactility with acceptable strength. To prepare articles such as medical film protective devices, the elastomeric composition is dissolved in a sufficient amount of a solvent to permit dip forming. A form having the shape of the desired product is dipped into the solution to build up a film of the elastomeric composition on the form. The dip-formed elastomeric films are free of pinholes and resistant to oxidative and ozone attack. The films are particularly suitable for use in products such as gloves, condoms, external catheters, catheter balloons, cuffs, dilatation balloons, instrument covers, and drains.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: April 18, 1995
    Assignee: Tactyl Technologies, Inc.
    Inventors: Douglas A. Buddenhagen, Norman R. Legge, Gunter Zscheuschler
  • Elastomeric triblock copolymer compositions and articles made therewith
    Patent number: 5112900
    Abstract: An elastomeric composition is formed of at least two, and preferably three, S-EB-S elastomeric triblock copolymers having different solution viscosity/copolymer concentration relationships, and a sufficient amount of a mineral oil plasticizer to achieve excellent tactility with acceptable strength. To prepare articles such as medical film protective devices, the elastomeric composition is dissolved in a sufficient amount of a solvent to permit dip forming. A form having the shape of the desired product is dipped into the solution to build up a film of the elastomeric composition on the form. The dip-formed elastomeric films are free of pinholes and resistant to oxidative and ozone attack. The films are particularly suitable for use in products such as examination, surgical, and industrial gloves and condoms.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: May 12, 1992
    Assignee: Tactyl Technologies, Inc.
    Inventors: Douglas A. Buddenhagen, Norman R. Legge, Gunter Zscheuschler