Isaac L Langley

US Patent:

49216074, May 1, 1990

Filed:

Feb 25, 1988

Appl. No.:

7/160029

Inventors:

Isaac L. Langley - Greenville SC

Assignee:

Hoeganaes Corporation - Riverton NJ

International Classification:

B01D 2926

US Classification:

210266

Abstract:

The prefilter assembly is provided with a central cavity in which a plurality of tubular porous tubular elements are provided with the remaining space being filled by a mass of shattered metal particles. During filtration, the shattered metal particles eliminate dead space within the filter while also filtering out micro gels which may be in the polymeric material. The shattered metal particles also reduce the possibility of gel formation due to cross-linking of the polymer mass therethrough.

US Patent:

46612491, Apr 28, 1987

Filed:

Jan 28, 1985

Appl. No.:

6/695618

Inventors:

Isaac L. Langley - Greenville SC

Assignee:

Metallurgical Industries, Inc. - Tinton Falls NJ

International Classification:

B01D 2926

US Classification:

210266

Abstract:

The filter assembly is constructed of outer sleeves of wire screen, a mass of shattered metal particles within the sleeves and at least one tubular filter element within the shattered metal particles. The mass of shattered metal particles serves to remove micro-gels from the polymeric material flowing through the filter assembly while the inner filter element serves to remove particulate matter.