Patents Assigned to Bristol and Williams
  • Hand-held, battery-operated rotary blade saw
    Patent number: 5012582
    Abstract: A hand-held, battery-operated rotary blade saw useful for cutting plastic clips or straps which secure a face mask to a football helmet. Several configurations, having differing safety shields, are disclosed. The device is an emergency/rescue tool to quickly remove a face mask from a football helmet allowing access to the face of a football player without removal of the helmet with its concomitant risk of cervical injury.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: May 7, 1991
    Assignee: Bristol and Williams
    Inventors: Steven L. Bristol, Joseph D. Casanueva