Andrew G Proulx

US Patent:

6391178, May 21, 2002

Filed:

Jul 13, 2000

Appl. No.:

09/616137

Inventors:

Benny Garcia - West Roxbury MA
Andrew Proulx - Concord MA

Assignee:

Millipore Corporation - Bedford MA

International Classification:

C02F 140

US Classification:

204628

Abstract:

An improved electrodeionization system for removing ions from liquids passed therethrough, comprising a flow-through electrodeionization module, and a power supply electrically connected to the electrodeionization module electrodes so as to establish a voltage gradient thereacross. The invention includes a monitoring device such as a resistivity sensor for monitoring the value of a property (e. g. resistivity) of the liquid output flow from the electrodeionization module, and a controller responsive to the monitoring device, for controlling the amount of time that the power supply is turned on, to maintain output quality within a predetermined range, while conserving power and simplifying power supply design.

US Patent:

6490777, Dec 10, 2002

Filed:

Mar 10, 2000

Appl. No.:

09/508412

Inventors:

Andrew G. Proulx - Concord MA
George M. Carmichael - Rindge NH

Assignee:

Millipore Corporation - Bedford MA

International Classification:

B21B 146

US Classification:

295271, 264 71, 264299, 62 66

Abstract:

The present invention provides methods and devices for producing a subassembly for devices designed to receive particulate matter in a compartment of predetermined shape.

US Patent:

6625863, Sep 30, 2003

Filed:

Jan 16, 2002

Appl. No.:

09/990944

Inventors:

Andrew G. Proulx - Concord MA
George M. Carmichael - Rindge NH

Assignee:

Millipore Corporation - Billerica MA

International Classification:

B21B 146

US Classification:

295271, 264 71, 264299, 62 66, 53437, 366110

Abstract:

The present invention provides methods and devices for producing a subassembly for devices designed to receive particulate matter in a compartment of predetermined shape.

US Patent:

6726822, Apr 27, 2004

Filed:

Jan 29, 2002

Appl. No.:

10/059573

Inventors:

Benny Garcia - West Roxbury MA
Andrew Proulx - Concord MA

Assignee:

Millipore Corporation - Bedford MA

International Classification:

B01D 6148

US Classification:

204519, 204524, 204533, 204536

Abstract:

An improved electrodeionization system for removing ions from liquids passed therethrough, comprising a flow-through electrodeionization module, and a power supply electrically connected to the electrodeionization module electrodes so as to establish a voltage gradient thereacross. The invention includes a monitoring device such as a resistivity sensor for monitoring the value of a property (e. g. resistivity) of the liquid output flow from the electrodeionization module, and a controller responsive to the monitoring device, for controlling the amount of time that the power supply is turned on, to maintain output quality within a predetermined range, while conserving power and simplifying power supply design.

US Patent:

20030189002, Oct 9, 2003

Filed:

Apr 3, 2003

Appl. No.:

10/406548

Inventors:

Andrew Proulx - Concord MA, US
Kitty Siu - Westford MA, US
Gary O'Neill - Tyngsborough MA, US

International Classification:

B01D024/00

US Classification:

210/284000

Abstract:

The present invention is a composite filter for use with recycling gray water. The filter is comprised of a housing containing a series of filters, a first depth filter, preferably made of cellulose fibers for removing particles and turbidity causing materials, a second depth filter, preferably made of cellulose and diatomaceous earth for removing additional particles and turbidity causing materials, an organics filter, preferably a carbon filter to remove organic material and an ion exchange material to remove dissolved ionic species such as salts, acids and the like.

US Patent:

51768283, Jan 5, 1993

Filed:

Oct 3, 1991

Appl. No.:

7/770796

Inventors:

Andrew Proulx - Westford MA

Assignee:

Millipore Corporation - Bedford MA

International Classification:

B01D 2400

US Classification:

210341

Abstract:

A tangential flow filtration apparatus which utilizes a single manifold formed of a stack of manifold segments to introduce liquid to be filtered into the apparatus and to remove a filtrate stream and a retentate stream from the apparatus is provided. A plurality of filtration modules are stacked between the manifold and a plate. Holes and sealing means are provided within the filtration modules to effect flow of the filtrate, retentate and feed liquid through the stack and manifold while preventing admixture of the filtrate with the retentate or the feed liquid. A feed manifold is positioned at an intermediate position within the stack of manifold segments. All manifold segments with the exception of the most downstream manifold segment or most upstream manifold segment from the point of introducing incoming liquid must have a filtrate exit from both ends of the manifold segment. The most downstream or the most upstream manifold segment also can have filtrate exits from both of its ends.

US Patent:

55994474, Feb 4, 1997

Filed:

Jun 6, 1995

Appl. No.:

8/468177

Inventors:

Steven R. Pearl - Nashua NH
Andrew G. Proulx - Concord MA
Brian Hillier - Chelmsford MA

Assignee:

Millipore Investment Holdings Limited - Wilmington DE

International Classification:

B01D 6300

US Classification:

21032175

Abstract:

A manifold segment is provided for tangential flow filtration apparatus. The manifold segment includes a fluid feed conduit, a retentate conduit, a filtrate inlet and a filtrate outlet. An adaptor manifold is provided which directs filtrate from the manifold segment into a tangential flow filtration module and directs filtrate from the module into the manifold segment. Filtrate introduced into the tangential flow filtrate module reduces pressure drop across a filter layer in the module.

US Patent:

56814380, Oct 28, 1997

Filed:

May 31, 1996

Appl. No.:

8/656138

Inventors:

Andrew G. Proulx - Concord MA

Assignee:

Millipore Corporation - Bedford MA

International Classification:

B01D 6144
B01D 6148

US Classification:

204627

Abstract:

A membrane module in which non-porous membranes are bonded to spacer elements, which elements are in turn bonded to each other to create a membrane support zone as a result of contact with the surface of the membrane opposite the surface to which the membrane is bonded. The membrane is restrained from peeling from the membrane bond by the support zone under opposing pressure as may be caused by fluid flowing past the membrane. The preferred use of such a membrane module is for continuous electrodeionization processes.