Resources Contact Us Home
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
Method and apparatus for distributing promotional materials
Microfluidic system incorporating a metal impregnated nanoporous material in a microfluidic pathway thereof
Combination of a microorganism and a phytosphingosine derivative, composition, methods of use
Firewall-tolerant voice-over-internet-protocol (VoIP) emulating SSL or HTTP sessions embedding voice data in cookies
Processing circuitry for use with a position sensor
Location-based method to specify ratio frequency spectrum rights
Plural component proportioner
  Randomly Featured Patents
Real time voice quality statistics in audio teleconferencing
Anion-conducting polymer, composition, and membrane
Telephoto lens system
Dimorphotheca plant named `Rose`
Breath test device and method
Dual lower extremity MRI coil array with simultaneously independent MRI signal detection from both legs
Fold-away tow bar
In-package temporally modulated reference source for tunable optical filter system
Medical treatment endoscope
System and method for project designing and developing a procurement and accounts payable system