Patents Assigned to Williamsburg Steel Products Co. Inc.
  • Elevator cab construction
    Patent number: 4357993
    Abstract: Laminated panels of thin construction form the sidewalls for an elevator cab. A channel caps the panels and prevents delamination and splitting when fasteners for ceiling panels are inserted into the wall edges. Walls connect using dado joints and hook and latch elements which are formed from identical blanks.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: November 9, 1982
    Assignee: Williamsburg Steel Products Co. Inc.
    Inventors: Ernst Halpern, Morris Kline, Waldemar Guslawski, Gopal S. Kukke