Kurt M Critz

7955751, Jun 7, 2011

Mar 31, 2004

10/814019

Andrei Leonida - West Hartford CT, US
Robert J. Roy - West Springfield MA, US
Kurt Matthew Critz - Enfield CT, US

Hamilton Sundstrand Corporation - Windsor Locks CT

H01M 8/02
H01M 2/08

429510, 429508, 429509

An electrochemical cell has an anode cavity and a cathode cavity. The anode cavity and the cathode cavity sandwich an electrochemically conductive medium. The anode cavity and/or the cathode cavity have electrically conductive plates assembled using a solid bonding material. Each plate has nesting volumes and protrusions provided in the perimeter seal area. The protrusions of one plate fit into the volumes of an adjacent plate to eliminate the offset introduced by the bonding material thickness.

8114555, Feb 14, 2012

Apr 29, 2011

13/097161

Andrei Leonida - West Hartford CT, US
Robert J. Roy - West Springfield MA, US
Kurt Matthew Critz - Enfield CT, US

Hamilton Sundstrand Corporation - Windsor Locks CT

H01M 8/02
H01M 2/08

429535, 429510

A method of manufacture includes an electrochemical cell structure having a first conductive member and a second conductive member. The first conductive member is spaced from the second conductive member. An adhesive is disposed between the first conductive member and the second conductive member. The adhesive has a solid state and a liquid state. The adhesive is liquefied to form a seal between the first conductive member and the second conductive member.

53668235, Nov 22, 1994

Dec 17, 1992

7/991906

Andrei Leonida - West Hartford CT
Lawrence C. Moulthrop - Windsor CT
Kurt M. Critz - Enfield CT

United Technologies Corporation - Windsor Locks CT

H01M 802

429 34

Accumulated dimensional variations in fuel cells and electrolysis cell assemblies can reduce the efficiency of the assembly and provide leakage paths for fuel and oxidant. A metal compression pad comprised of a metal having an elastic strain of about 3% to about 40% at about 2,500 psig can compensate for component dimensional variations and improve inter-cell conductivity at pressures up to and exceeding about 10,000 psig.

60370750, Mar 14, 2000

Nov 26, 1996

8/753540

Kurt M. Critz - Enfield CT
Andrei Leonida - West Hartford CT
Robert J. Roy - West Springfield MA

United Technologies Corporation - Hartford CT

H01M 804

429 36

An electrically non-conductive plate structure, for use in high pressure electrochemical cells employing ion-exchange membranes that creep or flow under pressure, is provided. Such plate structures are provided with a means for impeding membrane creep or flow when the cells are subjected to high axial loadings. When two such structures are positioned on either side of an ion-exchange membrane, so as to forcibly contact the surfaces thereof, such structures serve to contain, and thereby form a fluid tight seal with, the membrane while maintaining the electrical integrity of the cell.

56519290, Jul 29, 1997

Aug 9, 1995

8/513081

Trent M. Molter - Enfield CT
Kurt M. Critz - Enfield CT

United Technologies Corporation - Hartford CT

C04B 3500
H01M 488
C25B 1304

264104

A high performance ionomer assisted electrolytic cell electrode structure is provided. Such structures operate effectively at catalyst loadings as low as 0. 10 mg/cm. sup. 2 and demonstrate increased structural integrity without ionomer degradation. The inventive structure comprises a hydrated ion exchange membrane having a first surface and a second surface and at least one catalyst ionomer layer bonded to the first and/or second surface of the membrane that comprises hydrated and swollen ionomer solids bonded to discrete catalyst particles.

55296831, Jun 25, 1996

Mar 20, 1995

8/407279

Kurt M. Critz - Enfield CT
Trent M. Molter - Enfield CT

United Technologies Corp. - Windsor Locks CT

C25B 1500

205350

Prevention of degradation of ion exchange membranes and/or system hardware in electrolytic systems, during system shutdown, is effected by applying a reverse potential to the electrolytic system during shutdown of operation.

54663547, Nov 14, 1995

Sep 20, 1994

8/309258

Andrei Leonida - West Hartford CT
Lawrence C. Moulthrop - Windsor CT
Kurt M. Critz - Enfield CT

United Technologies Corporation - Hartford CT

H01M 200

204252

Accumulated dimensional variations in fuel cells and electrolysis cell assemblies can reduce the efficiency of the assembly and provide leakage paths for fuel and oxidant. A metal compression pad comprised of a metal having an elastic strain of about 3% to about 40% at about 2,500 psig can compensate for component dimensional variations and improve inter-cell conductivity at pressures up to and exceeding about 10,000 psig.

61717193, Jan 9, 2001

Nov 13, 1997

8/969737

Robert J. Roy - West Springfield MA
Kurt M. Critz - Enfield CT
Andrei Leonida - West Hartford CT

United Technologies Corporation - Hartford CT

H01M 804

429 39

An electrochemical cell electrode plate structure, a high-pressure electrochemical cell device, and a method for preparing such devices, are provided. The inventive electrode plate structure comprises a laminar assembly of slotted plate-shaped components that provides more uniform openings or flow passages across the active areas thereof. The inventive high-pressure electrochemical cell device comprises at least one cell made up of both slotted and unslotted plate-shaped components that are free of material deformations typically resulting from the high compressive force employed during final cell assembly. The inventive method for preparing such devices basically involves preparing at least one laminated sub-assembly comprising unslotted component layers for the purpose of consolidating such weaker layers into stronger sub-assemblies prior to a final lamination step.