Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Open fire convector










Image Number 3 for United States Patent #4429680.

A hot air generator is constituted by cast iron plates assembled together and sheets of steel cut out and bent in order to rest on elongated plane elements with which the plates are provided, perpendicularly to their surface, in such a manner as to form a closed shallow conduit.A first horizontal portion of the conduit, provided with a drawer which serves as an ash pan and as an adjustable member for leading in external air, forms the hearth and a chamber for preheating of the air. Two vertical portions serve as chambers for slowing down and for heating the air. The second vertical portion is constituted by the rear face of a throat of moulded cast iron which permits the conventional operation of the fireplace.








 
 
  Recently Added Patents
Semiconductor unit having a power semiconductor and semiconductor apparatus using the same
Interface circuit and interface system
Portable communication terminal, communication method and control program
Lubricant composition and antioxident composition
Self assembly of elements for displays
System and method for managing investment funds
Relative pose estimation of non-overlapping cameras using the motion of subjects in the camera fields of view
  Randomly Featured Patents
System and method for communication media management
Method of manufacturing a golf ball
Method for purification of silicon tetrachloride
Compositions containing kurroll's salt
Communication control apparatus for a printing system
Nonvolatile semiconductor memory device and writing method of the same
Valve device for silencer
Foam mixture for carbon dioxide drive oil recovery method
Encryption and decryption devices for public-key cryptosystems and recording medium with their processing programs recorded thereon
Wrapping device with a circular track structure, and a film feeding device