Vacuum Cleaners Discussions

Just came across an article regarding resonance charging.  This is a method for recharging electrinic devices by way of magnetic waves.  This may one day be the supply of power to batteries in electric cars, robotic vacuums and laptops.  Link follows.

http://searchmobilecomputing.techtarget.com/sDefinition/0,,sid40_gci1307234,00.html

Best,

Venson

I know what you mean. The old artwork has a certain 3-dimensional character that seems to be missing from modern drawings. They seemed to take care with attention to detail.

I could spend weeks trawling through the archives.

Until recently (the past 4-5 months), I never realised that Hoover had several early agitator designs. I presumed, wrongly, that there was a simple cylindrical wooden brushroll that was fitted to cleaners predating 1926, thereafter followed by the famous metal "Beats as it Sweeps" agitator.

I have since seen photos of a metal, narrow diameter Hoover brushroll, that had tufts of bristles on opposing sides. Now I discover patents that describe a ribbon-shaped agitator.

Then there is the 1979 Hoover "Kinetic" agitator that had the beater bars immediately behind the sweeping brushes; to give an extra flick to the brushes, and to allow the sweeping brushes to cushion the beater bars on hard floors. Very interesting.

I'll have to see if I can find info on the "Activator" agitator, as fitted to UK "Turbopowers" & "Turbomasters", US "Innovations" and the commercial "Conquest" models.

Good to read your posts.  Razors, electric and manual, with the battery charged vibrating blades and heads can utilize this technology too.

Carmine D.