I had seen this list before of “inventions” by black Americans. I needed a good laugh again. The biggest hoax of all was George Washington Carver, who the liberals like to say invented peanut butter. Truth of the matter is he invented nothing.
http://whitelocust.wordpress.com/black-invention-myths/
Invention is a matter of many people coming up with different versions and improvements. So, for example, Morgan's gas mask was a major improvement on Stenhouse's or Tyndall's, as Miles's elevator doors were an improvement on Meaker's.
I don't get the rage to dismiss another people's culture or achievements and pronounce them nothing. I hope it's just momentary anger and not a sign of some deeper hatred.
Oh, contrary to that racist site, the Jenny coupler and the Janney coupler are two different kinds of railroad coupler, one invented by the Confederate, the other by the African-American.