Michael P Delaney

US Patent:

7427449, Sep 23, 2008

Filed:

Oct 22, 2002

Appl. No.:

10/493481

Inventors:

Michael E. Delaney - Columbia MD, US

Assignee:

General Dynamics Information Technology, Inc. - Fairfax VA

International Classification:

C01B 13/02
C01B 31/24
H01M 8/18

US Classification:

429 19, 60721, 422122, 4234191, 423579

Abstract:

A method for producing oxygen and absorbing carbon dioxide in a single operation using a solution that contains an oxygen source and a redox partner that can react to form oxygen and a chemical species that can form an insoluble carbonate to precipitate and chemically store carbon dioxide. Carbon dioxide is introduced into the solution and the carbonate precipitates as the oxygen is generated. In particular, the invention uses an aqueous solution of permanganate and hydrogen peroxide that react in the presence of a catalyst to produce oxygen and manganese (II) ions. Carbon dioxide gas introduced into the solution reacts with the manganese (II) ions to precipitate manganese carbonate. Other cations capable of reacting with carbon dioxide to form an insoluble carbonate, for example calcium, barium and magnesium, may also be added to the solution to precipitate carbonate salts. Calcium permanganate may used as a source of both calcium and permanganate.

US Patent:

56898428, Nov 25, 1997

Filed:

Sep 27, 1996

Appl. No.:

8/720047

Inventors:

Michael A. Delaney - Greenbelt MD
Jeffries Arnez Jones - Greenbelt MD

International Classification:

E03D 1102

US Classification:

4661

Abstract:

A new Bowl Glow System for providing toilet illumination by way of a phosphorescent member affixed to a toilet bowl rim. The device includes a phosphorescent member affixed to a toilet bowl rim.