Patent ID: 7011608

Claim:
A high performance pogo stick adapted for use by an adult user, comprising: an elongate housing comprising a pneumatic cylinder, the housing having a proximal section and a distal section; a handle mounted on the housing near the proximal section; a foot support mounted on the housing near the distal section, the housing having a length configured such that the user can comfortably stand on the foot support and grasp the handle; the cylinder constructed from lightweight, high strength material selected from the group comprising: PVC, polycarbonate, or cellulose acetate butyrate; a piston slidable within the cylinder and having a proximal end and a distal end, the proximal end configured to form a substantially air tight chamber with said cylinder, said cylinder having an initial internal pressure; a piston shaft coupled to the piston, the distal end of the piston shaft contacting the ground and configured to allow the user to bounce on the pogo stick; the shaft and piston having a combined length which is less than that of the cylinder and configured such that when the piston is completely compressed within the cylinder by the user, a dead space is formed within the proximal section of said cylinder, the dead space containing only pressurized air and not occupied by said piston; the length of the cylinder being in the range of about 2.5 to about 4.5 times that of the dead space; and an air release device mounted on the housing and configured to allow the user to adjust the internal pressure of the cylinder during use.