Andrew C Mackie

US Patent:

6824752, Nov 30, 2004

Filed:

Jun 20, 2002

Appl. No.:

10/175293

Inventors:

Charles Edward Terbot - Tonawanda NY
Andrew Christopher Mackie - Orchard Park NY

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B01D 4700

US Classification:

423210, 423659

Abstract:

This invention is directed to a system and a process for protecting a gas purification system from damage comprising passing a stream of impure gas through a catalyst bed and measuring the temperature difference before and after the catalyzed bed reaction through a data analyzer to determine the impurity of the gas prior to controlling the feed of impure gas into or out of a reactor for producing a purified gas. In a preferred embodiment, the catalytic beds may be in parallel form, and the plurality of temperature measurements before and after the catalytic beds is considered by a data analyzer for controlling the impure gas for feeding into the purification reactor.

US Patent:

54120624, May 2, 1995

Filed:

May 19, 1994

Appl. No.:

8/199302

Inventors:

Gerald A. Power - Levenshulme, GB
Alison M. Wagland - Oxford, GB
Andrew C. Mackie - Madison NJ

Assignee:

Cookson Group plc - London

International Classification:

C08G 6302

US Classification:

528272

Abstract:

Thermally depolymerizable polyoxalate and polymalonate polymers which contain hydrocarbon groups having from 6 to 30 carbon atoms and a tertiary carbon atom attached to at least one of the bridging oxygen atoms in the structure are usable as binders for powdered glass ceramic or metallic materials, and as rheological control agents in paste formulations.