Patent Number: 6,305,913

Title: Pressure processing a pumpable substance with a flexible membrane

Abstract: An apparatus and method for pressure processing a pumpable substance, such as a pumpable food product or slurry. In one embodiment, the apparatus includes a pressure vessel having an inlet valve toward one end and outlet valve toward the other end. A flexible bladder is coupled between the inlet and outlet valves for receiving the pumpable substance. The pressure vessel can further include a high-pressure inlet port for receiving high-pressure fluid that biases the membrane inwardly to pressure process the pumpable substance. The pumpable substance is then removed from the vessel through the outlet valve.

Inventors: Hashish; Mohamed A. (Bellevue, WA), Raghavan; Chidambaram (Kent, WA), Tremoulet, Jr.; Olivier L. (Edmonds, WA), Schuman; Bruce M. (Kent, WA)

Assignee: Flow International Corporation

International Classification: A23L 3/015 (20060101); F04B 7/02 (20060101); F04B 43/00 (20060101); F04B 43/08 (20060101); F04B 7/00 (20060101); F04B 043/10 (); F04B 017/00 (); F04B 043/08 (); F01B 019/00 ()

Expiration Date: 10/23/2018