From what I've heard, the slingshot did have a patent. If you change the item by only 10% you can make it. Both the Titan RAM and Womack's Bench Daddy are different from the slingshot. In my opinion, both are improvements of the Slingshot. Bell is just bitter because they are making money too. To bad.
"I can't wait 'til tomorrow, 'cause I get stronger every day!"