Patent Number: 7,421,757

Title: Pump valve mechanism

Abstract: A method for cleaning tubes and heat exchangers provides an oscillating pump/valve mechanism to provide a periodic waveform of shocks to fouled tubes. Preferably, a pair of pneumatic control valves operates an actuator to oscillate a valve within a valve block, and isolation of a fluid within a manifold in the block creates a pumping action from the valve, to create an intense fluid shock wave to clean interior surfaces tubes.

Inventors: Garcia, Jr.; Ralph (Houston, TX)

Assignee: AIMM Technologies, Inc.

International Classification: A47L 15/00 (20060101)

Expiration Date: 2020-09-09 0:00:00