Pall Corporation

Leonard E Bensch

Kenneth M Williamson

Joseph G Adiletta

Scott A Whitney

Angela M Griffin

Ronald D Hundley

Conrad J Christel

Vijay Y Rajadhyaksha

Ian Reed

Robert G Simkins

William M Needleman

Fluid treatment elements substantially inhibit electrical charge imbalances and/or build-ups of electrical charges. A fluid treatment element may comprise a multilayer composite including an electrically conductive fibrous matrix, having an upstream side and a downstream side, disposed on a porous substrate, also having an upstream side and a downstream side, which supports the fibrous matrix. The fibrous matrix may include a combination of conductive and nonconductive fibers. The multilayer composite may also include a drainage layer positioned along one of the upstream side of the fibrous matrix and the downstream side of the porous substrate.

Electrically conductive fluid treatment elements

Fluid treatment elements and assemblies include a spring-biased electrical contact arrangement to dissipate electrical charge from the fluid treatment pack and/or the end caps to the housing.

Fluid treatment elements and assemblies

Fluid treatment elements substantially inhibit electrical charge imbalances and/or build-ups of electrical charges. A fluid treatment element may comprise a multilayer composite including an electrically conductive fibrous matrix, having an upstream side and a downstream side, disposed on a porous substrate, also having an upstream side and a downstream side, which supports the fibrous matrix. The fibrous matrix may include a combination of conductive and nonconductive fibers, wherein the conductive fibers include metal, carbon, or conductive polymer fibers and substantially inhibit an electrical charge and/or build-up of electrical charge. The conductive fibers of the electrically conductive fibrous matrix may comprise less than about 50% by weight of the conductive and nonconductive fibers and may have diameters in the range from about 1 &#x3bc;m or less to about 10 &#x3bc;m. The multilayer composite may also include a drainage layer positioned along one of the upstream side of the fibrous matrix and the downstream side of the porous substrate.

Fluid treatment elements

A system () for sampling a non-aqueous liquid comprises an optical particle counter () and a water sensor ().

Methods and systems for counting particles and sensing water

A fluid treatment element for treating a fluid flowing through the element comprises a first conductive layer and a second conductive layer electrically connected to the first conductive layer. The element further comprises a nonconductive porous treatment medium between the first and second conductive layers. The first and second conductive layers are positioned to offset electrical imbalances caused by fluid flowing through the nonconductive porous treatment medium.

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Glen Cove, NY, United States of America

Leonard E Bensch