Resources Contact Us Home
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
Information processing apparatus, method for controlling information processing apparatus, and storage medium
Handover signaling in wireless networks
Fast base station switching method and system, and hierarchical zone-based fast handoff approach
Systems and methods for tracking mobile terrestrial terminals for satellite communications
Warm air generating apparatus, sheet feeding apparatus, and image forming apparatus including warm air generating apparatus and sheet feeding apparatus
DL control channel structure enhancement
  Randomly Featured Patents
Method for determining mimotopes
Enhancing protein activity through nanoencapsulation
Projectile brake for a weaving machine
Pneumatic member and related attachment elements for cushions, seats, foundations and the like
Emergency braking brake booster comprising soundproofing means
Method and apparatus for the production of perforated films, particularly perforated films of plastics material for sanitary articles
Portal for implementation of multiple software components
Apparatus for freezing cooked rice
Rotary indexing positioning system