http://www.triplepundit.com/2006/03/the-wasteful-door-unlocker-analysis/ Business, Better. Since 2005 Mon, 22 Mar 2010 03:58:43 -0700 http://wordpress.org/?v=2.9.2 hourly 1 http://www.triplepundit.com/2006/03/the-wasteful-door-unlocker-analysis/comment-page-1/#comment-13782 Simon Mon, 20 Mar 2006 19:22:53 +0000 http://www.triplepundit.com/wordpress/2006/03/the-wasteful-door-unlocker-analysis/#comment-13782 An Australian inventor has developed a system that uses compressed air for security windows and doors that does the same thing but once the air pressure to lock the door is established the compressor switches off saving power. An Australian inventor has developed a system that uses compressed air for security windows and doors that does the same thing but once the air pressure to lock the door is established the compressor switches off saving power.

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