Patent ID: 8230869

Claim:
An umbrella comprising: a pole; a pair of yokes mounted on said pole for relative movement to each other; a plurality of radially disposed ribs, each said rib being pivotally connected at one end to a first yoke of said pair of yokes to pivot between a lowered position adjacent said pole and a raised position outwardly splayed from said pole during relative movement of the yokes; a plurality of radially disposed struts, each strut being pivotally connected at one end to a second yoke of said pair of yokes for moving between a lowered position adjacent said pole and a raised position outwardly splayed from said pole during relative movement of the yokes; each said strut being pivotally connected to a respective one of said ribs for movement therewith; and a cover mounted at a central area on said pole and secured at a plurality of peripherally disposed points to one of said ribs and said struts for movement between a collapsed condition about said pole corresponding to said lowered position of said ribs and a raised tensioned position splayed outwardly of said pole corresponding to said raised position of said ribs during relative movement of the yokes; whereby pivoting of one of said ribs from said lowered position thereof towards said raised position thereof causes said pair of yokes to move relative to each other and a corresponding movement of the remaining ribs and said cover to splay outwardly of said pole and whereby a downward deflection of said cover between a pair of said ribs in said raised position thereof causes said ribs to simultaneously move from said raised positions thereof to said lowered position thereof and a corresponding movement of said cover to said collapsed condition thereof and a corresponding movement of said yokes relative to each other.