Pall Corporation

Paul C Koehler

Stephen A Geibel

Michael B Whitlock

Christophe A Malbrel

Reza Hashemi

John L Hurley

Ralph B Di Palma

Vijay Y Rajadhyaksha

George C Jenkins

Lawrence J Noble

Ezekiel E Westfall

A porous metal filter possessing enhanced anticorrosive properties is provided including sintered metal particles composed of an alloy composition of iron aluminide having a range in concentration corresponding to Fe Al to FeAl phases and having a Bubble Point ratio of about 1.6 or less.

Metal filter for high temperature applications

A damage-resistant filter for use in subterranean wells has at least one layer of a filter medium, such as a sintered supported porous membrane, coaxially disposed about a perforated support member. The filter may also include a drainage layer disposed between the inner support member and the filter medium, and a protective covering, such as a perforated cage, surrounding the filter medium. The filter is particularly suitable for removal of sand and other particulates from fluids produced in a well.

Method of repairing a damaged well

Filter for subterranean wells

A filter assembly and a method of making a filter assembly is described wherein a filter pack is seated in an end cap and contacted with a particulate material and a settling liquid of low viscosity to form a filter assemblage. The filter assemblage is sintered to form a strong, virtually impermeable bond therebetween.

Filter assembly and method of making a filter assembly

A battery electrode is provided comprising a porous, pleated metal structure, preferably comprising nickel as its substrate.

Apparatus for use in a battery

A method of making a filter assembly is described wherein a filter pack is seated in an end cap and contacted with a mixture comprising a binder and a particulate material including a low temperature component and a high temperature component. The filter pack, the end cap, and the particulate material are heat treated to form a strong, effective bond.

Method of making a filter assembly

Metal filter sheet is made by a method in which metal particulates are suspended in a fluid medium containing a stabilizing agent. The stable suspension is then filtered to leave a wet cake of the metal particulate which is then dried, compressed, and sintered to produce the metal filter sheet.

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Cortland, NY, United States of America

Paul C Koehler