Patent ID: 6435849
Filing Date: 2002-08-20
Classification: F04B

Abstract:
A pump for pumping a fluid by action of a moving liquid which imposes a repetitive driving force on the pump, the pump comprising:a flexure plate sufficiently flexible to bend and recover in response to the repetitive driving force; at least one bladder connected to the flexure plate; at least one fluid input connector operably connected to the bladder and having a one-way valve therein to admit fluid into the bladder upon expansion of the bladder; and at least one fluid output connector operably connected to the bladder and having a one-way valve therein to pass fluid out of the bladder upon compression of the bladder; the bladder and flexure plate being configured so that repetitive bending and recovery of the flexure plate causes the bladder to be repetitively expanded and contracted to pump fluid.