Ronald J Rezac

US Patent:

7887974, Feb 15, 2011

Filed:

Apr 10, 2007

Appl. No.:

11/784941

Inventors:

Paul Osenar - Southborough MA, US
Thomas Vitella - Franklin MA, US
Nick Lauder - Newton MA, US
Seth Avis - Chestnut Hill MA, US
David Ferreira - North Scituate RI, US
Ronald Rezac - Bolton MA, US

Assignee:

Protonex Technology Corporation - Southborough MA

International Classification:

H01M 8/04

US Classification:

429513, 429512

Abstract:

The present invention provides, among other things, membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more external manifolds which deliver reagents and/or coolant to one or more reactant or coolant flow fields of the membrane cassettes. In particular, the present invention describes the insert molding method, whereby the plenums of the external manifolds are created during the stack encapsulation step. The invention describes several methods for creating the manifold runner geometry via insert-molding, machining, or with separate components.

US Patent:

7914947, Mar 29, 2011

Filed:

Apr 10, 2007

Appl. No.:

11/786082

Inventors:

Paul Osenar - Southborough MA, US
Thomas Vitella - Franklin MA, US
Nick Lauder - Newton MA, US
Seth Avis - Chestnut Hill MA, US
David Ferreira - North Scituate RI, US
Ronald Rezac - Bolton MA, US

Assignee:

Protonex Technology Corporation - Southborough MA

International Classification:

H01M 8/00
H01M 8/04

US Classification:

429535, 429512, 429513

Abstract:

The present invention provides, among other things, membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more external manifolds which deliver reagents and/or coolant to one or more reactant or coolant flow fields of the membrane cassettes. In particular, the present invention describes the insert molding method, whereby the plenums of the external manifolds are created during the stack encapsulation step. The invention describes several methods for creating the manifold runner geometry via insert-molding, machining, or with separate components.

US Patent:

8124292, Feb 28, 2012

Filed:

Jun 28, 2007

Appl. No.:

11/823743

Inventors:

Thomas Vitella - Franklin MA, US
Jeff Baldic - Milford MA, US
Ronald Rezac - Bolton MA, US
Nick Lauder - Newton MA, US
Seth Avis - Chestnut Hill MA, US
Paul Osenar - Southborough MA, US

Assignee:

Protonex Technology Corporation - Southborough MA

International Classification:

H01M 2/38
H01M 2/40

US Classification:

429457, 429452, 429456, 429518

Abstract:

The invention provides a fuel cell stack including a layer of encapsulating material disposed about the separator plate, MEA, and reactant manifold, wherein the reactant manifold is bounded at least in part by the encapsulating material. The fuel cell stack also includes a first opening through the plate body to the first face from the second face, and an open channel in the second face extending from the opening toward a periphery of the plate. The invention also provides a fuel cell stack having a first face including an opening for passage of a reactant therethrough, a first reactant flow field defined thereon, and a first raised surface formed thereon substantially surrounding the opening. The first raised surface is configured and adapted to mate with a second surface on a face of an adjacent plate to create a flow obstruction for encapsulating material.

US Patent:

8465569, Jun 18, 2013

Filed:

Sep 16, 2008

Appl. No.:

12/283807

Inventors:

David Edlund - Hopkinton MA, US
Paul Osenar - Westford MA, US
Nathan Palumbo - West Boylston MA, US
Ronald Rezac - Bolton MA, US
Matt Steinbroner - Grafton MA, US

Assignee:

Protonex Technology Corporation - Southborough MA

International Classification:

B01D 53/22

US Classification:

95 11, 96 7, 96 4, 95 55, 95 45, 95 56, 95 43, 2103216, 21032184

Abstract:

A gas separation unit for permeating a gas out from a pressurized feed mixture includes an input manifold , an exhaust manifold, and a permeate assembly. The permeate assembly supports one or more permselective foils over a hollow cavity supported by a microscreen element. The microscreen element includes non-porous perimeter walls supported on a frame surface and a porous central area supported over the hollow cavity. A porous spacer disposed inside the hollow cavity structurally supports the entire microscreen surface spanning the hollow cavity while also providing a void volume for receiving fluid passing through the porous central area and for conveying the fluid through the hollow cavity.

US Patent:

8580457, Nov 12, 2013

Filed:

Jun 28, 2007

Appl. No.:

11/823759

Inventors:

Thomas Vitella - Franklin MA, US
Jeff Baldic - Milford MA, US
Ronald Rezac - Bolton MA, US
Nick Lauder - Newton MA, US
Seth Avis - Chestnut Hill MA, US
Paul Osenar - Southborough MA, US

Assignee:

Protonex Technology Corporation - Southborough MA

International Classification:

H01M 2/08
H01M 2/14
H01M 8/00
H01M 8/04

US Classification:

429510, 429508, 429514, 429535

Abstract:

The invention provides a fuel cell stack including a layer of encapsulating material disposed about the separator plate, MEA, and reactant manifold, wherein the reactant manifold is bounded at least in part by the encapsulating material. The fuel cell stack also includes a first opening through the plate body to the first face from the second face, and an open channel in the second face extending from the opening toward a periphery of the plate. The invention also provides a fuel cell stack having a first face including an opening for passage of a reactant therethrough, a first reactant flow field defined thereon, and a first raised surface formed thereon substantially surrounding the opening. The first raised surface is configured and adapted to mate with a second surface on a face of an adjacent plate to create a flow obstruction for encapsulating material.

US Patent:

8603219, Dec 10, 2013

Filed:

May 20, 2013

Appl. No.:

13/897914

Inventors:

Paul Osenar - Groton MA, US
Nathan Palumbo - West Boylston MA, US
Ronald Rezac - Bolton MA, US
Matthew P. Steinbroner - Sandy Hook CT, US

Assignee:

Protonex Technology Corporation - Southborough MA

International Classification:

B01D 53/22

US Classification:

95 45, 95 43, 95 55, 95 56, 96 4, 96 7, 96 11, 210650, 2103216, 21032184

Abstract:

A gas separation unit for permeating a gas out from a pressurized feed mixture includes an input manifold , an exhaust manifold, and a permeate assembly. The permeate assembly supports one or more permselective foils over a hollow cavity supported by a microscreen element. The microscreen element includes non-porous perimeter walls supported on a frame surface and a porous central area supported over the hollow cavity. A porous spacer disposed inside the hollow cavity structurally supports the entire microscreen surface spanning the hollow cavity while also providing a void volume for receiving fluid passing through the porous central area and for conveying the fluid through the hollow cavity.

US Patent:

20070148508, Jun 28, 2007

Filed:

Nov 13, 2006

Appl. No.:

11/598091

Inventors:

Peter Rezac - Marlborough MA, US
Oren Bernstein - Swampscott MA, US
Jeff Baldic - Milford MA, US
Richard Mohring - East Brunswick NJ, US
William Skrivan - Boston MA, US
Ronald Rezac - Bolton MA, US

International Classification:

H01M 8/06
B01J 19/00

US Classification:

429019000, 429034000, 422129000

Abstract:

Purge systems and methods are disclosed for flushing unreacted materials and byproducts from a reactor. In one embodiment, the reactor houses a hydrogen generation catalyst and the system comprises a hydrogen generation fuel cartridge containing a reservoir that stores water which may be recovered from the exhaust of a fuel cell. The reservoir may comprise a flexible bladder or a piston-type configuration. Water is delivered from the reservoir to flush the reactor of any residual fuel and/or byproducts.

US Patent:

20070238004, Oct 11, 2007

Filed:

Apr 10, 2006

Appl. No.:

11/401785

Inventors:

Paul Osenar - Westford MA, US
Thomas Vitella - Franklin MA, US
Nick Lauder - Newton MA, US
Seth Avis - Chestnut Hill MA, US
David Ferreira - North Scituate RI, US
Ronald Rezac - Bolton MA, US

Assignee:

Protonex Technology Corporation - Southborough MA

International Classification:

H01M 8/02
H01M 2/08
H01M 8/10

US Classification:

429035000, 429038000, 429032000

Abstract:

The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more external manifolds which deliver reagents and/or coolant to one or more reactant or coolant flow fields of the membrane cassettes. In particular, the present invention describes the insert molding method, whereby the plenums of the external manifolds are created during the stack encapsulation step. The invention describes several methods for creating the manifold runner geometry via insert-molding, machining, or with separate components.

Address:

185 Century Ml Rd, Bolton, MA 01740

Phone:

978 502-2237

VIN:

5FNYF4H99BB096663

Make:

HONDA

Model:

PILOT

Year:

2011