Patents Assigned to MFD Enterprises, Inc.
  • Headband magnifier
    Patent number: 5727251
    Abstract: A headband magnifier comprises a one-piece polypropylene headband having a front portion, a back portion and two opposed sides where the back portion is disengageable so that the headband is movable between an at rest position and a compression position for the headband to provide a compressive force. This headband compressive force provides a comfortable tension for all head sizes. The headband magnifier further provides a flexible holding member having a continuous groove that facilitates interchangeability of lenses.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: March 17, 1998
    Assignee: MFD Enterprises, Inc.
    Inventors: Mary Frances Sherlock, Marnie C. Averitt
  • Headband magnifier
    Patent number: 5548841
    Abstract: A headband magnifier comprises a one-piece polypropylene headband having a front portion, a back portion and two opposed sides where the back portion is disengageable so that the headband is movable between an at rest position and a compression position for the headband to provide a compressive force. This headband compressive force provides a comfortable tension for all head sizes. The headband magnifier further provides a flexible holding member having a continuous groove that facilitates interchangeability of lenses.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: August 27, 1996
    Assignee: MFD Enterprises, Inc.
    Inventors: Mary F. Sherlock, Marnie C. Averitt, Thomas W. Dowling
  • Headband magnifier
    Patent number: D359060
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: June 6, 1995
    Assignee: MFD Enterprises, Inc.
    Inventors: Mary F. Sherlock, Marnie C. Averitt