Patent ID: 7637203

Claim:
An air pump, comprising: a cylinder; a piston reciprocably movable within the cylinder and defining a compression volume within the cylinder between the piston and a first end of the cylinder; a piston rod substantially rigidly secured to the piston and extending along the cylinder toward its second end; a first substantially rigid member pivotably connected at its first end to the cylinder; a second substantially rigid member pivotably connected at its first end to the piston rod and pivotably connected at its second end to the second end of the first member; a third substantially rigid member pivotably connected at its first end to the connected second ends of the first and second members; and a handle pivotably connected to the second end of the third member, wherein the third member is arranged to transmit, between the handle and the connected second ends of the first and second members, a force resulting from a force applied to the handle wherein the handle is reciprocably movable in a direction substantially parallel to an axis of the cylinder, wherein the first and second members are arranged substantially parallel to the cylinder when the piston is positioned substantially at the end of a pump stroke.