Fred M Martin

US Patent:

39349063, Jan 27, 1976

Filed:

Feb 15, 1974

Appl. No.:

5/442788

Inventors:

Frank R. Shippey - Thousand Oaks CA
Timothy C. Vance - Los Angeles CA
Fred E. Martin - Newbury Park CA

Assignee:

Raypak, Inc. - Westlake Village CA

International Classification:

B01D 2910

US Classification:

285371

Abstract:

Porous, tubular core sections coated with a semipermeable membrane are joined at their ends by a simplified coupling member. Each coupling member or connector comprises a cylindrical flange member having circularly barbed or serrated nipples which fit tightly into the ends of bores of adjacent core sections. The ends of the cores abut against the circular part of the coupling member. Surrounding the joint thus formed is a flexible, elastomeric sealing sleeve. The nipples on the coupling member are axially slotted and have neck parts of a smaller diameter adjacent the body part of the coupling member providing annular openings between these neck parts and the bores of core members permitting continuous flow of permeate and cleaning solution without there being appendages, cavities, or pockets in which permeate or cleaning solution could be trapped.

US Patent:

39923010, Nov 16, 1976

Filed:

Mar 5, 1975

Appl. No.:

5/555640

Inventors:

Frank R. Shippey - Thousand Oaks CA
Timothy C. Vance - Los Angeles CA
Fred E. Martin - Newbury Park CA

Assignee:

Raypak, Inc. - Westlake Village CA

International Classification:

B01D 3100
B01D 1300

US Classification:

210 23H

Abstract:

An automatic flushing and cleaning system for membrane separation machines such as reverse osmosis machines having plural modules or membranes. Cleaning may be by way of reducing the pressure to allow the membrane to relax, by the injection of air or inert gas to provide turbulence, and/or by injection of flushing liquid which may include chemical cleaning additives. Pumps, automatic valving, and pressure controls are provided, along with a complete timer operated electrical sequencing system whereby desired purging, flushing and cleaning cycles are automatically undertaken at periodic intervals or in response to one or more preferred conditions.