Allen D ref your post -- allendaves@xxxxxxxxxxxxxx Wed Jan 30 18:55:19 2008 Does this meet your definition of a quantem accelerometer? Quantum accelerometer - Title:Quantum tunneling cantilever accelerometer Document Type and Number:United States Patent 4638669 Link to this page:http://www.freepatentsonline.com/4638669.html Paul D Get the name you always wanted with the new y7mail email address. www.yahoo7.com.au/y7mail