Patents Assigned to Tape-Licator, Inc.
  • Filter mask
    Patent number: 3985132
    Abstract: An improved filter mask having a laterally pleated filter medium and a stiffening member parallel to and in the vicinity of the pleats. Lateral opening of the pleats causes the stiffening members to bow outwardly and support the filter medium away from the nose and mouth of the wearer thereby providing greater filtering efficiency and wearer comfort.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: October 12, 1976
    Assignee: Tape-Licator, Inc.
    Inventors: Elvin L. Boyce, William Keith Robinson