Gelman Sciences, Inc.

Pall Corporation

Kinetico Incorporated

Eric Sklar

William C Steere

John D Miller

Stuart L Park

Keith E Brown

Paul John Peterson

Peter L Graham

Ken Weight

Dean C Delben

Tod Borton

Ron Kindel

Daniel S Vitkuske

Jane Larson

A filter apparatus is provided which includes a first filter membrane element (), and a second bacterial filter membrane element. The first viral filter element () is capable of treating water at a first second flow rate and is adapted to remove contaminants which are larger than a first size, while the second bacterial filter element () is capable of treating water at a second higher flow rate and is adapted to remove contaminants which are larger than a second contaminant size. The first and second filter elements (), () may be commonly housed within a sealed housing. An accumulating vessel () is placed in fluid communication with an outlet of the first filter element () and an outlet of the second filter element (). The filter apparatus includes a duck bill type check valve () made of an antimicrobial material intermediate the second filter element () and a dispensing faucet ().

Multiple barrier filter apparatus

The description describes a test sample preparation device comprising a housing, a filter assembly disposed over an opening in the housing and including a plurality of wells, a sampler tray removably disposed in the housing, and a plurality of vials removably coupled to the sampler tray and being in liquid receiving relationship with the wells. A filter assembly is also disclosed and which comprises a cover defining an impervious wall and plurality of wells formed in the wall, each wall having first and second open ends, the second open end of the well comprising a tubular protrusion. A housing is also disclosed and comprises a generally cylindrical body, a vacuum channel providing fluid communication between the interior and the exterior of the cylindrical body, and a key mechanism including a post having first and second ends, the key mechanism being arranged to orient a sampler tray and vials with respect to the housing. A method for simultaneously preparing multiple test samples for automated liquid chromatography and a method for automated liquid chromatography are also disclosed and comprise depositing test samples into a plurality of wells, simultaneously passing the test samples through porous media disposed in the wells, and depositing the filter test samples directly into vials removably coupled to a sampler tray.

Devices and housings for test sample preparation

A filter device or apparatus is provided for the separation of materials, especially biomaterials from a fluid sample, under a force such as centrifugation, positive pressure, vacuum, or gravity. The device comprises two or more in-line tubular elements, one or more of which is a module that houses a filter media. The elements have complementary connection structures (e.g., elastomeric seal, O-ring, threads, Luer fittings, compression fittings, bayonet fittings, snap fittings, and the like) such that they can be assembled or reassembled in a train to form a conduit structure for leak-proof passage of a fluid sample volume. The assembly can be disassembled for collection and processing of retentate and filtrate material resulting from the filtration.

Selective separation filter device

A coreless filter comprises a pleated, spirally wound loop of material disposed in a housing. The loop includes a layer of filter material, such as a membrane filter, interposed between two support layers.

Self-supporting, pleated, spirally wound filter

Self-supporting, pleated, spirally wound filter and the corresponding

An in-line filter assembly is provided of a type having a housing divided into inlet and outlet chambers by a filter membrane having its periphery fluid-flow-sealed within the housing, the filter being readily disassemblable so that the filter membrane can be removed for identification or analysis of the material filtered from the fluid during use of the filter.

Microporous filtration funnel assembly

Growing community of inventors

Northville, MI, United States of America

Eric Sklar