Weird Patent of the Day
Method of swinging on a swing
A method of swinging on a swing in which a user 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.
Source: United States Patent and Trademark Office, www.uspto.gov. Official PDF: USPTO patent PDF. Also at Google Patents. The drawing on this page is a reduced copy of the official figure; see the original drawing.
