MDC,

I don't have any Torkelson (or Sullivan, Wadsworth, Forehand, etc) single trigger patents...that's not to say that Torkelson didn't have one, but I don't have anything on it...

One of Torkelson's associates, F W Hood, had a single trigger patent that's not applicable, but worth a look.

If I have interpreted correctly.... it's for hammerguns, where you cock the desired first hammer only. When you pull the trigger, the cocked hammer falls....if you continue to pull the second hammer is dual action...

DRAWING
http://patimg1.uspto.gov/.piw?docid=US00...26RS=PN/0316622

TEXT
http://patimg1.uspto.gov/.piw?docid=US00...26RS=PN/0316622


Can you describe the the trigger any better? Where is the selector?
From the description that you gave, I remenbered a single trigger patent were the spring loaded trigger travelled left/right in a V pattern...back and to the right for the right barrel, then release, and back and to the left for the left barrel...or left first...you can decide on the fly...

But I'm not sure which patent that is....and with 197 single trigger patents in my US file, it would take some looking to find it.