Christopher W Larsen

US Patent:

6758206, Jul 6, 2004

Filed:

Mar 12, 2003

Appl. No.:

10/385633

Inventors:

Shelton T. Barnes - Chattanooga TN
Eddie Max Brock - Cleveland TN
Christopher A. Larsen - Dorchester MA
David C. Ometer - Cleveland TN

Assignee:

Maytag Corporation - Newton IA

International Classification:

A21B 100

US Classification:

126 21R, 126 15 R, 126 19 R, 126273 R, 126 41 R

Abstract:

A range includes a cabinet, defined by at least a front, side, bottom and top portions, as well as upper and lower oven cavities each having a respective gas burner assembly. At least one passageway is formed to create an airflow path enabling a portion of an ambient airflow introduced into the cabinet to reach the gas burner assemblies of the upper and lower oven cavities for combustion purposes, preferably through natural convection, while the remaining portion of the airflow passes over and cools portions of the range. In a preferred form of the invention, insulation is maintained in a desired position below a respective oven cavity by a holder through which the airflow passes to the burner assembly.

US Patent:

6761159, Jul 13, 2004

Filed:

Mar 12, 2003

Appl. No.:

10/385606

Inventors:

Shelton T. Barnes - Chattanooga TN
Eddie Max Brock - Cleveland TN
Christopher A. Larsen - Dorchester MA
Gerald R. Place - East Ridge TN

Assignee:

Maytag Corporation - Newton IA

International Classification:

A21B 100

US Classification:

126 21R, 126 15 R, 219757

Abstract:

A cook appliance in the form of a range having upper and lower oven is provided with an exhaust system including an exhaust duct for the lower oven which extends through an exhaust duct for the upper oven. Each of the exhaust ducts leads to an exhaust air box which defines an exhaust outlet for the appliance. Preferably, the exhaust duct for the lower oven has associated therewith an extension sleeve which divides the exhaust air box into separate exhaust zones for the upper and lower ovens. Provisions are made to dilute and/or cool exhaust gases flowing through the ducts prior to the exhaust gases existing the appliance.

US Patent:

6830045, Dec 14, 2004

Filed:

Mar 12, 2003

Appl. No.:

10/385649

Inventors:

Eddie Max Brock - Cleveland TN
Christopher A. Larsen - Dorchester MA
Gerald R. Place - East Ridge TN

Assignee:

Maytag Corporation - Newton IA

International Classification:

F24C 300

US Classification:

126 19R, 126 39 R, 126 39 K, 431354

Abstract:

A cooking appliance includes a gas burner module having a base structure upon which is secured at least a gas burner element and a gas orifice defining member in a predetermined alignment. The base structure is preferably formed from stamped steel. The burner module also preferably includes a gas igniter. The gas burner module is adapted to be mounted to heat an oven cavity of the cooking appliance. With this arrangement, tolerance build-up leading to misalignment between critical components is greatly reduced thereby improving manufacturing and combustion repeatability, as well as enhanced field replacement. In this manner, the cooking appliance will consistently operate within prescribed agency limitations.

US Patent:

6895953, May 24, 2005

Filed:

Mar 12, 2003

Appl. No.:

10/385651

Inventors:

Christopher A. Larsen - Dorchester MA, US
Gerald R. Place - East Ridge TN, US
Steven M. Swayne - Chattanooga TN, US
Dutch VanZandt - Cleveland TN, US

Assignee:

Maytag Corporation - Newton IA

International Classification:

F24C003/08

US Classification:

126 41R, 431264

Abstract:

A gas cooking appliance includes at least one oven cavity which is coated with a heat resistant material, preferably porcelain. The cooking appliance includes a gas broil element and an associated baffle, as well as a gas igniter, arranged atop the oven cavity. The baffle is provided with one or more openings above the igniter for ventilation purposes. Each opening is preferably defined by a louver. With the inclusion of the louvered opening, enhanced combustion is assured and any potential crazing zone of the oven cavity is shifted to a position wherein, should any heat resistant material chip off due to heat from the igniter, the material will be blocked from falling into any food support zone of the oven cavity.

US Patent:

7052671, May 30, 2006

Filed:

Jan 11, 2002

Appl. No.:

10/044813

Inventors:

Andrew W. McClaine - Lexington MA, US
Jonathan L. Rolfe - N. Easton MA, US
Christopher A. Larsen - Dorchester MA, US
Ravi K. Konduri - Canton MA, US

Assignee:

Safe Hydrogen, LLC - Lexington MA

International Classification:

C01B 3/04

US Classification:

4236582, 25218825, 25218826

Abstract:

A composition comprising a carrier liquid; a dispersant; and a chemical hydride. The composition can be used in a hydrogen generator to generate hydrogen for use, e. g. , as a fuel. A regenerator recovers elemental metal from byproducts of the hydrogen generation process.

US Patent:

7210475, May 1, 2007

Filed:

Mar 12, 2003

Appl. No.:

10/385520

Inventors:

Shelton T. Barnes - Chattanooga TN, US
Eddie Max Brock - Cleveland TN, US
Christopher A. Larsen - Dorchester MA, US
Gerald R. Place - East Ridge TN, US

Assignee:

Maytag Corporation - Newton IA

International Classification:

F24C 15/00
F24C 15/32

US Classification:

126273R, 126 39 R, 126 19 R

Abstract:

A gas cooking appliance includes a low profile gas burner assembly positioned within an oven cavity. The low profile gas burner assembly, formed from a tubular member having a defined diameter, includes a first end, defining an inlet portion, interconnected with a second end, defining an outlet portion, through an intermediate portion. In accordance with the invention, the intermediate portion maintains a vertically spaced relationship between the inlet portion and outlet portion from about 1. 0 to 3. 33 times the diameter of the tubular member, preferably about 1. 33 to 2. 66 times the diameter and, most preferably, approximately twice the diameter of the tubular member.

US Patent:

7411160, Aug 12, 2008

Filed:

Jul 20, 2005

Appl. No.:

11/184849

Inventors:

Thu-Ha Duncan - Cleveland TN, US
Christopher A. Larsen - Dorchester MA, US
Steven M. Swayne - Chattanooga TN, US

Assignee:

Whirlpool Corporation - Benton Harbor MI

International Classification:

F27D 7/04
F27D 11/02
A21B 1/26

US Classification:

219400, 99476, 219409, 219410, 126 21 A

Abstract:

A convection cooking appliance includes a convection fan for establishing a convection airflow which is heated by a heating element including first and second sections that are symmetrically disposed about the convection fan substantially parallel to and downstream of the convection fan. Each of the first and second sections is formed so as to include at least three lobes and four 180 turns, while establishing a thin profile heating element. A convection fan cover extends across the convection fan and includes a main body portion having an outlet portion for directing the convection airflow into a cooking chamber of the appliance. The outlet portion includes an angled louver and a trip edge portion. The angled louver and trip edge portion cooperate to alter a direction of the convection airflow from being substantially parallel to the main body portion to being substantially perpendicular the main body portion.

US Patent:

7743762, Jun 29, 2010

Filed:

Mar 22, 2005

Appl. No.:

11/085083

Inventors:

Christopher A. Larsen - Dorchester MA, US

Assignee:

Maytag Corporation - Benton Harbor MI

International Classification:

F24C 15/30

US Classification:

126190, 126273 R

Abstract:

A cooking appliance includes an oven cavity, a trim element and a door designed to pivot about a substantially vertical axis. The door is mounted for pivotal movement relative to the oven cavity about a substantially vertical axis. The door includes a main body portion having a front surface, a rear surface and a peripheral edge portion. The peripheral edge portion includes top, bottom and opposing side edge sections, with each of the opposing side edge sections leading to an extended region that overlaps, at least in part, the trim element. The extended region includes a generally rounded portion directly adjacent to the trim element. The generally rounded portion provides clearance necessary to enable the door to shift between open and closed positions, while simultaneously allowing the use of an extremely thin or low profile door.