Patents Assigned to Chinook Manufacturing Co.
  • Prefabricated fireplace for permanent installation
    Patent number: 4271815
    Abstract: A prefabricated fireplace, largely made of metal, is provided for permanent installation in a house or similar structure. The fireplace is completely self-insulated so that it does not require any special materials of construction for installation and furthermore, combustion air is supplied for secondary combustion to prevent creosote buildup. Additionally, the fireplace does not use room air for combustion and is substantially airtight so that no room heat is lost up the chimney.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: June 9, 1981
    Assignee: Chinook Manufacturing Co.
    Inventor: William R. Johnson
  • Apollo model fireplace
    Patent number: 4182305
    Abstract: A metal fireplace unit suitable for use in mobile homes or the like is formed in the configuration of an eight-sided space capsule. Heat resistant windows are placed on three of the eight sides so that the fireplace presents an attractive appearance when viewed from almost any angle. An efficient heat circulating system is employed so that a maximum amount of heat is extracted from the fuel.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: January 8, 1980
    Assignee: Chinook Manufacturing Co.
    Inventor: William R. Johnson
  • Freestanding fireplace stove with heated air circulation
    Patent number: 4177793
    Abstract: A freestanding fireplace stove is provided with an air space surrounding the firebox with air circulation means for circulating air between the firebox and the outer walls of the fireplace. The air circulation may be forced.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: December 11, 1979
    Assignee: Chinook Manufacturing Co.
    Inventor: William R. Johnson
  • Freestanding fireplace stove with cooking means
    Patent number: 4159016
    Abstract: A freestanding fireplace stove is provided with an air space surrounding the firebox which is heated by the fireplace and is provided with doors and shelves so that the fireplace may be used as an oven. Further, the top of the fireplace has a large flat area which may be used as a cooking stove.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: June 26, 1979
    Assignee: Chinook Manufacturing Co.
    Inventor: Michael Johnson