Patent ID: 7517306

Claim:
An ergonomic hip pump apparatus, comprising: a base; a valve box assembly disposed adjacent to the base, the valve box assembly comprising: a valve chamber having an inlet side and an outlet side, an inlet pipe connected to the inlet side of the valve chamber, an outlet pipe connected to the outlet side of the valve chamber, an inlet suction valve disposed within the valve chamber and adapted for controlling fluid flow through the inlet side, and an outlet pressure valve disposed within the valve chamber and proximate to the inlet side of the valve chamber and adapted for controlling fluid flow through the outlet side and arranged in a v-shaped configuration with the suction valve; a cylinder assembly hinged off the base, the cylinder assembly comprising: a removable cylinder coupled at one end to the valve box assembly, a cylinder cap having a replaceable inner liner and disposed within a top portion of the removable cylinder, and a splash cap positioned over the cylinder cap and the removable cylinder; and a piston disposed within the cylinder assembly, the piston comprising: a pressure seal and a suction seal disposed at a lower end of the piston, the pressure seal being spaced apart and mounted above the suction seal, and a leak valve comprising an opening in the pressure seal adapted to enable fluid flow above the suction seal on a suction stroke, wherein the cylinder cap surrounds the piston, and the base is pivotably connected to the inlet and outlet pipes of the valve box assembly to form a pivot axle between the cylinder assembly and the base.