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
Catalyst composition with nanometer crystallites for slurry hydrocracking
Touch-sensitive device and communication device
Methods and systems for dynamic spectrum arbitrage
Extensible, filtered lists for mobile device user interface
Notebook computer
Image forming apparatus and method of translating virtual memory address into physical memory address
Mono-body defibrillation probe
  Randomly Featured Patents
Electricity measuring instrument
Method for high speed data transfer
Laser thermal management system
Ligands, complexes and their use for the polymerization of olefins
Syringe flange
Soap dispenser
Semiconductor device having multi-bit nonvolatile memory cell and methods of fabricating the same
Detecting the endpoint of chem-mech polishing and resulting semiconductor device
Image reduction conversion method
Water remover for an air compressor system