Patents Assigned to Bernard L. Dalsin Co.
  • Cap-type flue damper
    Patent number: 4020754
    Abstract: A cap-type flue damper mountable in the flue opening, the cap position relative to the flue opening being controllable from controls located at the hearth, the damper having a built-in brake which prevents the cap from closing in the event of a malfunction in the spring urging the cap in the open position.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: May 3, 1977
    Assignee: Bernard L. Dalsin Co.
    Inventors: Bernard L. Dalsin, George J. Dalsin, Lawrence T. Schwaab