Christopher N Larsen

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:

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:

7735480, Jun 15, 2010

Filed:

Aug 18, 2005

Appl. No.:

11/206218

Inventors:

Christopher A. Larsen - Cleveland TN, US
David E. Levi - Ringgold GA, US

Assignee:

Maytag Corporation - Benton Harbor MI

International Classification:

F23M 7/00

US Classification:

126197, 126190, 126192, 126273 R, 292 24, 292 35, 292 45

Abstract:

A cooking appliance having first and second oven doors that combine to extend across and close off a frontal opening of a cooking chamber includes a latching mechanism for locking the first and second oven doors in a closed position. The latching mechanism includes a fixed support plate and a motor having an output shaft to which is rotatably mounted an eccentric drive member. Preferably, the motor is fixedly mounted to the support plate. The latching mechanism further includes first and second latch members each having a first end portion pivotally attached to the eccentric drive member extending to a second end portion defining a hook element. When the motor is activated, a guide mechanism directs the second end portions of the first and second latch members to a locking position leading the hook members into engagement with the first and second doors.

US Patent:

7814897, Oct 19, 2010

Filed:

Aug 18, 2005

Appl. No.:

11/206219

Inventors:

Christopher A. Larsen - Cleveland TN, US

Assignee:

Maytag Corporation - Benton Harbor MI

International Classification:

F24C 15/04

US Classification:

126191, 126190, 126197, 49366, 49367, 49368, 110173, 292201

Abstract:

A cooking appliance includes first and second French-style doors connected through a door linkage system. The door linkage system includes first and second control arms, each including a first end linked to a corresponding one of the first and second doors and a second end. The second ends of the first and second control arms are interconnected and mounted so as to travel in an arcuate path when one of the doors is operated. Shifting one of the first and second doors in an open or closed direction results in a corresponding movement in the other door. The first and second control arms are actually interconnected to a linkage control arm that establishes a particular timing of the doors. The door linkage system also employs a camming surface, cam follower and spring element that provides a biasing force to the doors.

US Patent:

8136517, Mar 20, 2012

Filed:

Dec 15, 2008

Appl. No.:

12/334975

Inventors:

Wade A. Atkinson - Ooltewah TN, US
Christopher A. Larsen - Cleveland TN, US

Assignee:

Whirlpool Corporation - Benton Harbor MI

International Classification:

F24C 3/12

US Classification:

126 39R, 126 39 E, 126 39 G, 126 42, 431 91, 431255, 137 66, 251231, 251233

Abstract:

A gas cooking range includes a housing having an upper half section and a lower half section. A gas control valve is operable to control the flow of gas to a burner. The gas control valve is positioned in the lower half section of a housing of the gas cooking range. A handle extending from the gas control valve to the upper half section of the housing is operable to control the gas control valve.

US Patent:

8327835, Dec 11, 2012

Filed:

May 3, 2010

Appl. No.:

12/772292

Inventors:

Christopher A. Larsen - Cleveland TN, US
David E. Levi - Ringgold GA, US

Assignee:

Whirlpool Corporation - Benton Harbor MI

International Classification:

F24C 15/02

US Classification:

126197, 126273 R, 126190, 126192, 49108, 49113

Abstract:

A cooking appliance having first and second oven doors that combine to extend across and close off a frontal opening of a cooking chamber includes a latching mechanism for locking the first and second oven doors in a closed position. The latching mechanism includes a fixed support plate and a motor having an output shaft to which is rotatably mounted an eccentric drive member. Preferably, the motor is fixedly mounted to the support plate. The latching mechanism further includes first and second latch members each having a first end portion pivotally attached to the eccentric drive member extending to a second end portion defining a hook element. When the motor is activated, a guide mechanism directs the second end portions of the first and second latch members to a locking position leading the hook members into engagement with the first and second doors.

US Patent:

8336535, Dec 25, 2012

Filed:

Jul 13, 2006

Appl. No.:

11/485474

Inventors:

Christopher A. Larsen - Cleveland TN, US
David E. Levi - Ringgold GA, US
Mark A. Pickering - Cleveland TN, US

Assignee:

Whirlpool Corporation - Benton Harbor MI

International Classification:

F23M 7/00

US Classification:

126190, 126192, 494751, 494831, 494841, 110173 R

Abstract:

A cooking appliance includes an oven cavity accessed through first and second French-style doors that are connected to the appliance through a door linkage system. The door linkage system establishes a particular timing of door openings and closings to minimize potential wear of a door gasket. That is, each of the doors has an associated gasket for use in sealing the oven cavity when the doors are closed. One of the doors is provided with an annular gasket, while the other door essentially incorporates a less that fully annular, preferably 3-sided or a three-quarter gasket. With this arrangement, each of the gaskets has three sides adapted to seal against a cabinet shell portion of the appliance, while the fourth side of the first gasket is adapted to seal against an extension provided on the other door.

US Patent:

20130260521, Oct 3, 2013

Filed:

May 24, 2013

Appl. No.:

13/902052

Inventors:

Christopher J. Larsen - Boise ID, US

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

H01L 29/66

US Classification:

438264

Abstract:

A method of forming a memory array includes forming a dielectric over a semiconductor, forming a charge-storage structure over the dielectric, forming an isolation region through the dielectric and the charge-storage structure and extending into the semiconductor, recessing the isolation region to a level below a level of an upper surface of the dielectric and at or above a level of an upper surface of the semiconductor, forming an access line over the charge-storage structure and the recessed isolation region, and forming an air gap over the recessed isolation region so that the air gap passes through the charge-storage structure, so that the air gap extends to and terminates at a bottom surface of the access line, and so that the entire air gap is between the bottom surface of the access line and the upper surface of the semiconductor.