Emd Millipore Corporation

Entegris, Inc.

Millipore Corporation

Gregory Straeffer

Joseph M Almasian

James Ormond

Bailey Vaillancourt

Mikhail Kozlov

Joseph Geringer

Stephen G Hunt

Stephen Proulx

Ralph J Stankowski

Kevin Rautio

George T Perivolotis

Matthew Natale

George A Gagne, Jr

Nathan Landry

Kenneth King

Zhenwu Lin

David P Yavorsky

Leonard DJr Decoste

Leonard D Decoste

A spiral wound membrane module, comprising a perforated core having an axially extending internal bore; at least one membrane packet comprising a folded membrane sheet defining a first outer face, a first inner face, a second outer face and a second inner face, the fold of the folded membrane sheet being a leading end of the membrane packet; a feed sheet positioned between the first and second inner faces so as to be sandwiched by the folded membrane sheet; a first permeate screen adjacent the first outer face of the membrane sheet defining a first permeate channel; a second permeate screen adjacent the second outer face of the membrane sheet defining a second permeate channel; and a fluid impermeable support coupled to the leading edge of the membrane packet. Also disclosed is a method of manufacturing the spiral wound membrane module.

Spiral wound filtration device and methods of manufacture

Filter assembly stand

Filter assembly bracket

Filter assembly holder

Capsule stand

A filtration apparatus is provided comprising a housing having an inlet and an outlet and a plurality of spirally wound filtration cartridges. The filtration cartridges include two filter layers, a feed spacer layer and a permeate spacer layer. Seals are provided to prevent admixtures of feed and permeate and to permit recovery of permeate.

Multifiltration cartridge filtration apparatus

A depth filter design is disclosed which has little if any open void area upstream of the media. Preferably, it also has little if any open void area downstream of the media as well. A preferred embodiment uses layers of stacked, fibrous media with several of the layers being separated from the others by spacers which serve to compress the media and to prevent the bypass of fluid around the media adjacent the inner wall of the housing. Several designs for attaching the end caps which allow for the compression of the media are also disclosed.

Filtration cartridge and process for filtering a slurry

Growing community of inventors

North Chelmsford, MA, United States of America

Gregory Straeffer