Patent ID: 7033304

Claim:
A wrist exerciser comprising: a casing formed by an upper casing member coupled to a lower casing member for relative movement of one with respect to the other, each of the upper and lower casing members having a plurality of slotted openings formed therethrough in angularly spaced relationship, the plurality of slotted openings of the upper casing member being alignable with the plurality of slotted openings of the lower casing member; a rotor received in the casing and encompassed thereby, the rotor having axially aligned rotation shafts respectively and rotatably received in holes defined in the casing for rotatably supporting the rotor inside the casing; a drive roller fixedly mounted to one of the rotation shafts; and a drive bar partially and movably received in the casing through a respective one of the plurality of slotted openings of the upper and lower casing members, the drive bar having a portion drivingly engageable with the drive roller whereby by forcibly pulling the drive bar out of the casing, the roller is caused to drive an initial rotation of the rotor inside the casing.