Patents Assigned to Joseph J. Petlak
  • Air heater
    Patent number: 4286943
    Abstract: Air heater having an outer manifold and an inner combustion chamber with a common longitudinal axis, and a burner in the rear end of the chamber, of which the manifold has an air inlet in its rear end and a constricted air outlet in its front end, and the combustion chamber has in its peripheral wall a plurality of ports through which to divert part of the air from the manifold into the chamber for its heat-up by the burner flame therein and discharge through the open end of the chamber.
    Type: Grant
    Filed: August 21, 1979
    Date of Patent: September 1, 1981
    Assignee: Joseph J. Petlak
    Inventors: Joseph J. Petlak, Joseph M. Salafia