Title at the link:
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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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Steven Olson
Ignore the links under the OVERVIEW....will just give you a 404.
Great, some dork got a silly patent. We call those paper patents because it is about all they are worth. The issue isn’t obtaining crap from the PTO but what is done with it. Are kids being sued in playgrounds to stop swinging? No, becasue this is a patent that could not be enforced.