Patents Assigned to Ben Bernstein & Associates
  • Knife sharpener
    Patent number: 4528777
    Abstract: A knife sharpening device having a grinding element adapted to be moved into the knife edge in a spiral path through a 180.degree. traverse and reverse, simultaneously moving longitudinally throughout the length of the knife's edge. A blade stropping element may be contained as an insert in the grinding element to strop the knife's edge during the reverse traverse.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: July 16, 1985
    Assignee: Ben Bernstein & Associates
    Inventors: Benjamin T. Bernstein, George M. Toman