Robert Allen Carroll

US Patent:

51695294, Dec 8, 1992

Filed:

Apr 22, 1991

Appl. No.:

7/688180

Inventors:

Robert H. Carroll - Rock Hill SC
Terry A. Barber - Charlotte NC
Bradley W. Reed - Gastonia NC

Assignee:

Hoechst Celanese Corporation - Charlotte NC

International Classification:

B01D 6138

US Classification:

21032178

Abstract:

Modules for use in fluid separations, especially contained liquid membrane separations, exhibit minimal effective membrane thickness. The modules have a module case and bundle of a dense plurality of hollow fiber membranes contained in the case. One set of the fiber membranes in the bundle constitutes feed-fibers while another set of the fiber membranes in the bundle constitutes strip-fibers for use in contained liquid membrane separations. The feed-fibers and strip-fibers are disposed within the elongate module case in opposite generally wave-like paths such that the feed-fibers and strip-fibers converge at generally lengthwise-separated crossing regions within the module. This disposition of the feed-fibers and the strip-fibers minimizes the effective membrane thickness value of the module as compared to conventional contained liquid membrane modules thereby enhancing the efficacy of fluid separations.

US Patent:

62070533, Mar 27, 2001

Filed:

Dec 7, 1998

Appl. No.:

9/206351

Inventors:

Robert H. Carroll - Rock Hill SC
Linus I. Holstein - Pineville NC
Charles J. Runkle - Charlotte NC
Richard A. Sodaro - Weddington NC
Tony R. Vido - Belmont NC
Martin J. Weinstein - Charlotte NC

Assignee:

Celgard Inc. - Charlotte NC

International Classification:

B01D39/00

US Classification:

21050023

Abstract:

The present invention is directed to a thermoplastic, unibody transfer device. This transfer device includes a membrane, and a housing surrounding the membrane. The housing includes a thermoplastic end cap and a thermoplastic shell. The end cap and shell are butt welded together. Additionally, there is a method of manufacturing with the aforementioned device. The method includes forming a bundle of a membrane, inserting the bundle into a shell, butt welding an end cap to the bundle and the shell so that the cap, bundle, and shell are fused together.