A pair of trousers has an HF induction coil woven into the seat, which picks up power from a corresponding coil integrated into an office chair. The frequency of operation would be about 5 KHz. The connections from the coil in the trousers run to either a waistband clip or a special pocket with a connector.
If you clip your cellphone onto the belt clip and sit on a PowerChair, your cellphone (security blanket, lifeline, best buddy) is automatically trickle charged as you work. No cables, no flat batteries.
You could also integrate this into car seats or armchairs.-- 8th of 7, Nov 28 2002 Power Spots http://www.halfbake.../idea/Power_20SpotsSame idea, less specific. [phoenix, Oct 04 2004, last modified Oct 05 2004] Excellent idea - you could also have chargers on public transport, for the civic good. Might be more practical as a belt, though, since you will at some point have to put your trousers in the laundry.
Plan B - how about a piezoelectric trouser seat charger? Recharge your mobile with butt-clenches! The image of an office full of workers squeezing up and relaxing down, amuses me greatly.-- friendlyfire, Nov 28 2002 // since you will at some point have to put your trousers in the laundry. //
I will ? Never have yet ...-- 8th of 7, Nov 28 2002 I can't comment, beyond the fact that I seem to be bleeding profusely from the region of my trouser turnups, and I can't hear myself think for the yowling.-- 8th of 7, Nov 28 2002 wouldn't you eventually irradiate your ass?-- urbanmatador, Apr 10 2003 Now you too can have a hot ass!-- egbert, Apr 11 2003 Great idea, except you'll have to fend off the EM field opponents. There seems to be a large number of them using cell phones...-- dougp01, Aug 23 2005 random, halfbakery