25 results found displaying 22-24
    
 Lebanon
Remote Controlled Door (RCD) Printer Friendly Version
Parts of this idea are being used for other purpose but here it is.
Suppose you are in you bedroom or working on something interesting and you don't want to be interrupted when suddenly someone knocks on your door.
The idea is to build or assemble from already present device a transmitter and reciever than can control the lock in the door thru a powerful magnet coil (or an alreday present mechanism can be found i the market-by mechanism i do mean the hole door mechanism).
The block diagram or sequence goes like this.
1)transmitter
2)reciever
3)switch (could be a sucession of a transistor and a timer to make sure the signal is present for enough time)
4)12v, 9v, 6v realy to control the coil mounted on the door or the door mechanism it self.
5)... (if any other steps required).
Apart from the bedroom door the device can be used mounted on any door whether the main gates or any another (don't know if the wireless accessed car work following the same or similar principle).
Reward: a prototype of the device would be given to the most helpful prs, post, comment(s). 

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19°

    
sebin
 India
Sweater with heating coils inside Printer Friendly Version
If somebody got trapped in ice after an avalanche they probably be affected by hypothermia... this jacket or sweater helps the victim by heating their body to an optimum temperature so hypothermia doesn't set in. Probably if anybody wants to make this jacket will require mini coils and batteries (rechargable ones).
Reward: just tell me this idea is already present or not 

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16°

    
sebin
 India
Detachable toothbrush bristles Printer Friendly Version
Most of us change our toothbrush when the bristles get damaged after lot of brushing. So here is the idea - in this toothbrush we can detach the old bristle head and attach a new bristle head to the stem of the toothbrush. When somebody want to market this here is how to do it--this whole case consits of toothbrush along with two or three detachable bristle head. So how is it? If it's already present before then somebody market it in India got a huge market for it.
Reward: put a low price tags for this toothbrush so everyone can buy 

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16°

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