Patent ID: 6397867
Filing Date: 2002-06-04
Classification: A45B

Abstract:
A vented umbrella comprising:a frame including a shank; a hub fixedly mounted on top of said shank; an upper ring slidably mounted on said shank and including a plurality of equally spaced apart L-shaped channels extended from a top surface to a peripheral surface; a lower ring slidably mounted on said shank; a plurality of ribs each having one end linked to said hub; a plurality of stretchers each having one end pivotally linked to said lower ring and said other end pivotally linked to an intermediate portion of a corresponding one of said ribs; a canopy covered on said stretched frame including a lower canopy and an upper canopy each consisting of a plurality of sectors wherein said upper canopy is in a concentric partial covering relation with respect to said lower canopy with a predetermined overlapped peripheral area therebetween and a peripheral edge of said upper canopy is covered on an upper peripheral edge of said lower canopy; and a plurality of ropes each secured between said upper peripheral edge in each respective sector of said lower canopy and the corresponding L-shaped channel of the upper ring; whereby a plurality of openings are formed at said overlapped peripheral area between said sectors of said upper canopy and said corresponding sectors of said lower canopy in a fully extended condition.