Temporary Flexible Ventilation Duct Hose

Basics

• The Hose / Ducting used for Ventillation of a Confined Space or Construction Site etc
  • Especially those that cannot have your Copus Fan or Venturi Horn mounted directly on the Door / Manway etc

Existing Designs

• AMERIC Ventilation Duct: 12 in Dia, 15 ft Lg, For Use With VAF3000P, Yellow, PVC Coated Polyester

Main Problems

• Crappy Seal
• Dry Rotting

Potential Routes for Development

• Novel Materials
  • Less Prone to Dry Rotting / Rubber Reversion
  • If feeling REALLY fancy too could have some of that Passive Antimicrobial Additive / Antimicrobial Treatment (like the Silver stuff) so that mildew etc CANNOT form
    • ALTHOUGH proper storage makes this not needed
  • Material Compatibility may be a bit of an issue
    • Given venting Fuel Tanks and whatnot while people work inside them is the main use case, you need something VERY hydrocarbon-resistant, also may have some Acid/Base/High Temperature issues for the few jobs that aren’t some sort of Fuel / Petroleum Product
• Better means of connection
  • Having something like a Cam Lock fitting would be nice
  • The current form typically consists of a janky/dry rotted Nylon Strap+Metal Buckle system, and you somehow put one hose / the Drawstring Bag like section over the other, cinch it down, then somehow magically make that a seal that can handle blower fan pressure
  • With enough Duct Tape + Time ANYTHINGS POSSIBLE, but some sort of fitting would be a much cleaner, faster, and elegant solution
    • A Cam Lock fitting, although potentially made of Plastic / FRP ( “ ESD Safe Forged Carbon Fiber “ if you wanted to be VERY fancy) to save weight, especially for 15 inch ducting etc
    • ALTERNATELY even if no fitting is used, having a rigid section at each end to allow for an easy to hold together and tape area would aid in sealing as well