Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Hot air device for thermowelding bitumen membranes










Image Number 2 for United States Patent #7631678.

The invention concerns a hot air device for thermowelding membranes to surfaces. It includes an air inlet, a casing in fluid communication therewith, a combustion chamber mounted within the casing and spaced apart therefrom. The chamber has perforations allowing air to flow therein. The perforations allow some air to flow into the upstream section of the chamber producing an air-fuel mixture, and let the remaining air into the downstream section, thus shortening the flame within the chamber and producing hot air. The device includes an outlet portion for expelling hot air and not allowing a flame out therefrom, and a blower to force airflow from the air inlet through the chamber and out from the nozzle. The chamber may be pyramid or cone shaped and have a deflector to help direct air into the upstream section.








 
 
  Recently Added Patents
Graphical user interfaces and occlusion prevention for fisheye lenses with line segment foci
Novelty headband
Substrate processing apparatus and display method of substrate processing apparatus
Changing a system clock rate synchronously
Mobile communication terminal provided with handsfree function and controlling method thereof
Nonaqueous secondary battery with nitrile group-containing compound
Imidazo[1,2-B]pyridazine and pyrazolo[1 .5-A]pyrimidine derivatives and their use as protein kinase inhibitors
  Randomly Featured Patents
Picture frame
Method of providing clear water for beaches
Executing programs for a first computer architecture on a computer of a second architecture
Apparatus and method for determining a road-wheel vibration of automotive vehicle, and apparatus and method for anti-skid control using the same
Stimulable phosphor radiation image storage screen having an anti-reflection layer
Methods and apparatus for treatment of patent foramen ovale
Method of sealing an electrical feedthrough in a semiconductor device
Combination eyeglass case and eyeglass strap
Molded surfaces of a concrete product
Wafer support system