David S Burkhart

US Patent:

20100065287, Mar 18, 2010

Filed:

Sep 15, 2008

Appl. No.:

12/210555

Inventors:

David J. Burkhart - Wentzville MO, US
Jeffrey T. Kochelek - Creve Coeur MO, US
Kenneth Jones - Chesterfield MO, US
Thorstein Holt - Glencoe MO, US

Assignee:

Fire Protection Systems Corrosion Management, Inc. - St. Louis MO
Holtec Gas Systems - Chesterfield MO

International Classification:

A62C 35/62
A62C 35/58

US Classification:

169 17, 169 16, 169 43

Abstract:

A fire protection system comprising at least one sprinkler, a source of pressurized water, a piping network connecting at least one sprinkler to the source of pressurized water, and a nitrogen generator coupled to the sprinkler system. The nitrogen generator may be a nitrogen membrane system or a nitrogen pressure swing adsorption system. The present systems and methods reduce or nearly eliminate corrosion that typically affects conventional fire protection systems, such as caused by oxygen and microbial systems, which can deteriorate or compromise function. Initial, repeated, or continuous displacement of oxygen with nitrogen in the fire protection system significantly reduces or eliminates corrosion.

US Patent:

20110094758, Apr 28, 2011

Filed:

Oct 27, 2009

Appl. No.:

12/606287

Inventors:

David J. Burkhart - Wentzville MO, US
Jeffrey T. Kochelek - Creve Coeur MO, US
Kenneth Jones - Chesterfield MO, US
Thorstein Holt - Glencoe MO, US

Assignee:

Fire Protection Systems Corrosion Management, Inc. - St. Louis MO
Holtec Gas Systems - Chesterfield MO

International Classification:

A62C 35/62
A62C 35/64
A62C 35/68

US Classification:

169 17, 169 20

Abstract:

A fire protection system includes a dry pipe system and a controlled discharge gas vent. The dry pipe system and controlled discharge gas vent operate using a breathing cycle to displace oxygen and/or water vapor from within the piping network of the dry pipe system. The controlled gas discharge vent allows displacement of pressurized air with nitrogen, for example, using manual or automated processes that can employ one or more sensors. Corrosion resulting from oxygen, water, and/or microbial growth is reduced or nearly eliminated.

US Patent:

20160008644, Jan 14, 2016

Filed:

Sep 18, 2015

Appl. No.:

14/858662

Inventors:

- St. Louis MO, US
David J. BURKHART - Wentzville MO, US
Thorstein HOLT - Glencoe MO, US
Kenneth JONES - Chesterfield MO, US

International Classification:

A62C 35/64
A62C 35/68
A62C 35/60
A62C 35/62

Abstract:

A fire protection system comprising at least one sprinkler, a source of pressurized water, a piping network connecting at least one sprinkler to the source of pressurized water, and a nitrogen generator coupled to the sprinkler system. The nitrogen generator may be a nitrogen membrane system or a nitrogen pressure swing adsorption system. The present systems and methods reduce or nearly eliminate corrosion that typically affects conventional fire protection systems, such as caused by oxygen and microbial systems, which can deteriorate or compromise function. Initial, repeated, or continuous displacement of oxygen with nitrogen in the fire protection system significantly reduces or eliminates corrosion.

US Patent:

20140202714, Jul 24, 2014

Filed:

Mar 26, 2014

Appl. No.:

14/225819

Inventors:

David J. Burkhart - Wentzville MO, US
Jeffrey T. Kochelek - Creve Coeur MO, US
Kenneth Jones - Chesterfield MN, US
Thorstein Holt - Glencoe MO, US

Assignee:

HOLTEC GAS SYSTEMS, LLC - Chesterfield MO
ENGINEERED CORROSION SOLUTIONS, LLC - St. Louis MO

International Classification:

A62C 35/68
A62C 35/64

US Classification:

169 9, 137198

Abstract:

A fire protection system includes a dry pipe system and a controlled discharge gas vent. The dry pipe system and controlled discharge gas vent operate using a breathing cycle to displace oxygen and/or water vapor from within the piping network of the dry pipe system. The controlled gas discharge vent allows displacement of pressurized air with nitrogen, for example, using manual or automated processes that can employ one or more sensors. Corrosion resulting from oxygen, water, and/or microbial growth is reduced or nearly eliminated.