Lawn umbrella
AssigneeThe Sherwood Corporation
InventorThomas P. Dillman
Life of this patent
Estimating the term…
Abstract
A lawn umbrella having a shade of a rectangular configuration supported by four ribs, the free end of each rib being received in a pouch at a respective corner of the shade. The other ends of two of the ribs are pivotably connected to a collar slidable on the mast, the collar being lockable in operative position by a thumb screw. The other ends of the other ribs are pivotably connected to the top of the mast. A pair of struts are pivotably connected at one end to the second mentioned ribs and at the other end to a second slidable collar. Another pair of struts are pivotably connected at one end to the mast and at their other ends to the respective first mentioned ribs.
Claims6
A lawn umbrella comprising a mast, a flexible shade having a generally quadrilateral configuration disposed above the mast, first and second ribs each having a bowed configuration between its ends, means for fastening one end of each of the first and second ribs to a respective corner of a first pair of opposed corners of the shade, means for pivotably mounting the other end of each of the first and second ribs to the mast adjacent the upper end for pivotable movement in a vertical plane and with the ribs bowed such that the center of curvature of each rib is beneath the shade, a first slider disposed about the mast and slidable relatively thereto, means for selectively locking said slider to said mast, third and fourth ribs each having a bowed configuration between its ends, means for fastening one end of each of the third and fourth ribs to a respective corner of a second pair of opposed corners of the shade, and means for pivotably mounting the other end of each of the third and fourth ribs to the slider for pivotable movement in a vertical plane and with the third and fourth ribs bowed such that the center of curvature of each said third and fourth rib is above the rib, whereby said shade may be collapsed by lowering said slider and opened by raising said slider.
Dependencies are inferred from the claim text.