PCT Notable Inventions: Bagless Vacuum Cleaner

A vacuum cleaner without a bag. Developed by James Dyson, this vacuum cleaner uses centrifugal force to trap dirt, expel air and maximize suction.

Chosen as one of Time Magazine's "coolest inventions of 2002."

Bagless Vacuum Cleaner
Image: Bagless Vacuum Cleaner
Selection of PCT applications:

  • (WO 00/24519) Cyclonic Separating Apparatus 
  • (WO 96/19937)  Shroud and Cyclonic Cleaning Apparatus Incorporating Same 
  • (WO 96/19293) Improved Dust Separation Apparatus
  • (WO 98/02080) Apparatus For Separating Particles From A Fluid Flow And A Valve For Introducing Bled Fluid To A Mainstream Fluid 
  • (WO 99/56609) A Tool And Tool Holder Assembly For A Vacuum Cleaner Or Other Cleaning Appliance 
  • (WO 99/49978) Cyclonic Separation Apparatus 
  • (WO 00/21424) Vacuum Cleaner 
  • (WO 01/28400) Cyclonic Vacuum Cleaner 
Selection of references:
Links: Official Dyson web site