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
Polypeptide microparticles
Developing device
Method and apparatus for exercise monitoring combining exercise monitoring and visual data with wireless internet connectivity
Rim for a TV receiver
Fusing apparatus and image forming apparatus provided with the same, and heating apparatus
Configurable caged ball insert for a downhole tool
Blue box
  Randomly Featured Patents
Integrated sensor with capacitive coupling rejection to the mechanical ground
Magneto-optical recording medium with amorphous alloy film layers
Methods, systems and computer program products for kernel based transaction processing
Crosslinkable compositions comprising cyclic polycarbonates and glycidyl group-containing copolymers
Semiconductor packaging structure
Drawer-like cosmetic case
Method and apparatus for wireless electromagnetic communication within a contained electromagnetic field
Printer
Wristwatch strap
Electric fuse