Headwear in the form of a cap has a hemispherical crown, a crescent-shaped visor and a shield connecting the outer surface of the crown to the upper surface of the visor to form a pocket which opens onto the underside of the visor. The shield has an upper edge extending along a semi-circular section...http://www.google.de/patents/US4827384?utm_source=gb-gplus-sharePatent US4827384 - Pocketed headwear
