This sounds very similar to the Schlage \'Securekey\' system: http://securekey.schlage.com/Pages/Home.aspx

Already available for quite a while with Kwikset\'s SmartKey system. www.kwikset.com/smartkey

I recently had two new keys cut at a cost of £4.00 each, therefore locksmiths in Oz should be happy to sell a 6 key system for say, twenty-odd pounds plus cylinder. No worries!

that\'s kinda dumb then anyone could change the keys to your house????

The inventor has rediscovered what was invented in this country (US) in 1909. The discs were originally balls. In fact It was called \"lost ball\" technology. In fact it is now called \"builders or construction keying\" . This technology is used in just about every residential lock sold in America today. The builder has a construction master that is cancelled by the homeowners key. Dexter began using donut shaped discs just like this in the 1960 and 1970. I think Medeco even uses them. There are three major problems: 1) The donuts can drop unexpectedly locking out whom ever has a key. 2) the donuts can collapse jamming up the lock 3) Stacking donuts decreases lock security and allows for lock picking and key bumping. 4) You can\'t reuse old keys. For a brief period we incorporated donuts into our lock with disastrous consequences. FYI: Kwikset, Master Lock and Schlage now all have a rekeyable locks for residential applications.
- ViprLock

The Kwikset and Schlage locks require special tools & cylinder designs. Matrix is adaptable into any existing standard everyday cylinder; requires no end-user tools or training.
Carl... There are 4.8 million different key combinations (per keyway). Each set of locks uses a select few of these combinations.
ViprLock... 1) Hasn\'t happened to the hundreds we\'ve sold, nor the R&D cylinders that are still being cycle-tested from 2 years ago.
2) See 1.
3) Correct, in theory. To overcome this, Matrix uses highly accurate and pick/bump-resistant pins, plus if we\'re replacing 5-pin cylinders, we use 6-pin cylinders; and if we\'re replacing 6-pin cylinders we (will) use 7-pin cylinders.
4) Exactly!

That\'s why I have a fingerprint lock..you\'ll never get locked out of your house!

Fingerprint locks are great (if you can afford the good ones), but not very compatible with padlocks, sliding doors, screen doors, rollerdoors, etc.
Matrix Key Systems is compatible with all.

USAUSAUSAUSA!!!!

Like the invention do you have anybody representing your company on Guam. Please contact me with the possibilities ananich_jose@yahoo.com .