David L Faye

US Patent:

57165033, Feb 10, 1998

Filed:

Jul 31, 1996

Appl. No.:

8/688894

Inventors:

W. Clark Dean - Simsbury CT
David L. Faye - East Hartland CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C25B 900

US Classification:

204270

Abstract:

A center post electrochemical cell stack is disclosed for generating a product gas such as oxygen gas from a supply fluid such as water. The invention could be used to generate oxygen on board a space or aircraft and includes: a frame having a base plate and a wall affixed to the base plate so that the wall and base plate define a cell chamber for housing at least one electrochemical cell; and a T-cap having a top plate and a center post affixed to and projecting away from the top plate, wherein the top plate is secured to the wall of the frame to close the cell chamber and the center post passes through a central throughbore in an electrochemical cell within the chamber and is adjustably secured to the base plate of the frame. Consequently, the T-cap and frame cooperate to contain pressure generated by operation of the electrochemical cell. In a specific embodiment of the center post electrochemical cell stack, an exterior surface of the center post of the T-cap cooperates with a central throughbore vented electrochemical cell to define a high pressure manifold for venting of the product gas out of the cell, and an interior surface of the wall of the frame cooperates with the vented central throughbore cell to define a low pressure manifold for transmission of the supply fluid into and out of the cell.

US Patent:

54416213, Aug 15, 1995

Filed:

Dec 22, 1993

Appl. No.:

8/171730

Inventors:

Trent M. Molter - Enfield CT
David L. Faye - East Hartford CT
Wilford J. Armstrong - Bolton CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C25B 900
C25B 1302

US Classification:

204252

Abstract:

Fluid leakage restriction in multi-layered systems that contain fluids such as electrochemical cell devices with sealing surfaces defining patterns of ridges forming concentric rings surrounding through apertures within the surfaces require a new surface design for use of a potential through aperture site. A crossed-ridge sealing surface is comprised of a first plurality of aligned ridges and a second plurality of aligned ridges that crosses the first plurality of aligned ridges to define sealing cells that surround the existing through apertures and potential through aperture sites, so that one sealing surface design may enhance fluid leakage restriction for a variety of actual and potential through apertures.