push botton

[vinyard knifes]

looking around for drawings or ideas on a push button release after the blade is engaged and lock into the open posishion .

 

[Lagrange]

Look at the Benchmade page of locking mech's http://www.benchmade.com/products/mechanisms.aspx
or check out this patent http://images2.freshpatents.com/pdf/US20100299934A1.pdf page.
I'm sure there's more.