Patents Represented by Attorney, Agent or Law Firm Volker R. Ulrich, Esq.
  • Extruded monolithic foam earplug
    Patent number: 6408981
    Abstract: A monolithic earplug being compressible or deformable. The earplug is fabricated from an extruded, elastomeric thermoplastic in order that it may be rapidly and efficiently produced, and then the extrudate is cut at the die face, as it emerges therefrom, into discrete pieces to form earplugs having convex end portions and a skin extending over its entire outer surface.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: June 25, 2002
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: James C. Smith, Gary L. Wood