Christopher J Pierce

US Patent:

6902316, Jun 7, 2005

Filed:

Feb 5, 2004

Appl. No.:

10/774649

Inventors:

Christopher T. Pierce - Bedford IN, US
Daniel S. Ellison - Bloomington IN, US
Steve R. Turpen - Shoals IN, US
Clayton A. Williams - Bedford IN, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

G01N025/72
G01N017/00

US Classification:

374 7, 374 4, 374 45, 374 57, 374 5, 374 1

Abstract:

The non-invasive corrosion sensor includes a heat sink, at least two peltiers, a reference standard and a data acquisition device. Each peltier has a negative side and a positive side, and each peltier communicates with the heat sink such that the negative side of each peltier is maintained at a common temperature. The reference standard communicates with the positive side of one of the peltiers while the test piece communicates with the positive side of the other peltier; and the data acquisition devise is able to record and compare the differences in temperatures between the test piece and the reference standard. A higher temperature in the test piece than in the reference standard indicates the presence of corrosion. The differences in temperatures of the test piece and the reference standard are obtained via electrical currents in the peltiers.

US Patent:

20060240764, Oct 26, 2006

Filed:

Apr 22, 2005

Appl. No.:

11/112582

Inventors:

Christopher Pierce - Franklin IN, US
Bernard Pierce - Indianapolis IN, US
Larry Elkins - Columbus IN, US

International Classification:

F24F 13/06

US Classification:

454329000

Abstract:

An air vent insert for boosting circulation and/or purifying the air in the room in a safe and cost effective manner is disclosed. The insert includes a housing configured to be inserted into an air duct and covered by a face plate. The housing has a flange portion that rests on the wall or floor surrounding the duct opening and a body portion recessed in the duct to achieve a low profile design. The body portion contains one or more fans and/or air purification units coupled to an electronic control unit. For increased safety, the entire unit operates on low voltage DC power supplied from an AC/DC converter plugged into a standard 3 prong wall outlet.

US Patent:

20110045580, Feb 24, 2011

Filed:

Feb 16, 2010

Appl. No.:

12/706385

Inventors:

Gary R. Hater - Cincinnati OH, US
Roger B. Green - Cincinnati OH, US
Christopher J. Pierce - Franklin IN, US
Kevin M. Mieczkowski - Goshen KY, US
Gregory C. Cekander - The Woodlands TX, US

International Classification:

C12M 1/107

US Classification:

4352904

Abstract:

An in-situ dry anaerobic composter containing 40% to 75% by weight solids and located in a section of ground including a pit having side walls and a bottom, an essentially impervious liner located in the pit such that the liner abuts the pit side walls and bottom to form a lined pit, a compostable material located in the lined pit and a gas management system for extracting a gaseous anaerobic decomposition product from the compostable material as well as methods for operating the anaerobic composter.

US Patent:

20120264198, Oct 18, 2012

Filed:

Feb 17, 2012

Appl. No.:

13/399302

Inventors:

Gary R. Hater - Cincinnati OH, US
Roger B. Green - Cincinnati OH, US
Christopher J. Pierce - Franklin IN, US
Kevin Mieczkowski - Goshen KY, US
Gregory C. Cekander - The Woodlands TX, US

Assignee:

WASTE MANAGEMENT, INC. - Houston TX

International Classification:

C12M 1/107
C12S 3/00

US Classification:

435267

Abstract:

An in-situ dry anaerobic composter containing 40% to 75% by weight solids and located in a section of ground including a pit having side walls and a bottom, an essentially impervious liner located in the pit such that the liner abuts the pit side walls and bottom to form a lined pit, a compostable material located in the lined pit and a gas management system for extracting a gaseous anaerobic decomposition product from the compostable material as well as methods for operating the anaerobic composter.