Opener Knife

What is the name of the knife that is opened and closed with the same button, it is not a switch blade.?
The knife opens straight out the top of the handle and locks into place after pushing the button and then when you push the button again the blade goes back into the handle. This knife is seen in the movie Romancing the Stone, the bad guy who is Columbian and is trying to kill Joan the whole time uses it throughout the movie. Any one know what it is called?
Double Action Automatic out-the-front knife
Double Action OTF knives automatically extend and retract by using a sliding button or lever. Double action OTF knives are considered easier to use, but are more expensive compare to a similar single action knife.
Swiss Army Knife Can Opener