Weird Patent of the Day
Headband with multipositioned lenspiece
A multiposition lens piece removably attached to an absorbent headband. A spring member exerts a rotation-resisting force against the connecting member between the lenses to prevent unwanted rotation of the lenses during use.
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.
