Michael S Swanson

US Patent:

6652268, Nov 25, 2003

Filed:

Jan 31, 2003

Appl. No.:

10/356288

Inventors:

Bruce C. Irwin - Chattanooga TN
Russell Fountain - Chattanooga TN
Malcolm Swanson - Chattanooga TN
Joseph Unjakoti - Chattanooga TN
Michael Swanson - Chattanooga TN

Assignee:

Astec, Inc. - Chattanooga TN

International Classification:

F23Q 900

US Classification:

431284, 431115, 431182, 431188, 431285

Abstract:

A burner assembly including a housing having an air inlet and a burner end. An impeller that is mounted in the housing is in communication with the air inlet and adapted to direct air toward the burner end of the housing. The burner assembly also includes an inner air tube that is mounted in the burner end of the housing so as to define an inner combustion zone and an outer combustion zone. The assembly further includes a plurality of radiation plates that are mounted in the burner end of the housing adjacent to the outer combustion zone, an inner air spin vane that is mounted on the inner air tube so as to direct some of the air from the impeller into the inner combustion zone, an inner gas injection nozzle mounted on the inner air tube so as to direct gaseous fuel into the inner combustion zone, an outer air spin vane that is mounted in the burner end of the housing so as to direct some of the air from the impeller into the outer combustion zone, and a plurality of outer gas injection nozzles that are mounted in the burner end of the housing so as to direct gaseous fuel into the outer combustion zone. A first castellated ring is mounted around the periphery of the inner air tube, and a second castellated ring is mounted around the periphery of the burner end of the housing.

US Patent:

7785100, Aug 31, 2010

Filed:

May 26, 2006

Appl. No.:

11/441903

Inventors:

Malcolm Swanson - Chickamauga GA, US
Michael Swanson - Chickamauga GA, US

International Classification:

F23C 5/08

US Classification:

431181, 431 8, 431278

Abstract:

A burner assembly including a housing having an air inlet and a burner end, a motor, and an impeller mounted in the housing. The impeller is in fluid communication with the air inlet, in mechanical communication with the motor, and adapted to direct air from the air inlet towards the burner end of the housing. The burner assembly also includes a plurality of gas injection tubes that are disposed substantially parallel to each other. Each of the plurality of gas injection tubes includes a tube inlet end, a tube outlet end and at least one aperture. In addition, the burner assembly includes a first tube sheet disposed near the tube inlet ends of the plurality of gas injection tubes and a second tube sheet disposed near the tube outlet ends of the plurality of gas injection tubes. The burner assembly further includes a spin vane having at least one spin vane blade. The spin vane is mounted in the burner end of the housing and adapted to direct the flow of air in the burner end.

US Patent:

7810441, Oct 12, 2010

Filed:

Jul 20, 2007

Appl. No.:

11/880316

Inventors:

Malcolm L. Swanson - Chickamauga GA, US
Michael S. Swanson - Chickamauga GA, US
Russell W. Fountain - East Ridge TN, US
William Eric Wattenbarger - Attalla AL, US
Andrew Hobbs - Sheffield, GB
Kelly Knight - Ringgold GA, US

Assignee:

Astec, Inc. - Chattanooga TN

International Classification:

F23K 3/02
F23D 1/00

US Classification:

110104B, 110263, 110260

Abstract:

A burner assembly including a housing having an air inlet, a burner end having an opening, a longitudinal axis extending generally from the air inlet toward the burner end, a motor, an impeller mounted in the housing and being in fluid communication with the air inlet, operatively connected to the motor and adapted to direct air from the air inlet toward the burner end, a coal tube adapted to convey coal toward the burner end, a coal inlet adapted to convey coal to the coal tube, a first bluff body ring, a second bluff body ring and a third bluff body ring mounted at the burner end, a flame bridge disposed between the first bluff body ring and the second bluff body ring, and an igniter mounted in the burner end and being adapted to ignite the air and fuel mixture in the burner end to produce a main flame.

US Patent:

7878797, Feb 1, 2011

Filed:

May 18, 2006

Appl. No.:

11/436332

Inventors:

Malcolm Swanson - Chickamauga GA, US
Michael Swanson - Chickamauga GA, US

Assignee:

Astec, Inc. - Chattanooga TN

International Classification:

F23C 5/08

US Classification:

431181, 431183, 431187, 431284

Abstract:

A burner assembly including a housing having an air inlet and a burner end, a motor, and an impeller mounted in the housing. The impeller is in fluid communication with the air inlet, in mechanical communication with the motor, and adapted to direct air from the air inlet towards the burner end of the housing. The burner assembly also includes at least one pre-mix gas injection nozzle mounted in the housing. Each of the at least one pre-mix gas injection nozzle has at least one orifice adapted to direct gaseous fuel into the housing. The burner assembly further includes a spin vane comprising at least one spin vane blade. The spin vane is mounted in the burner end of the housing and adapted to direct the flow of air in the burner end. The burner assembly still further includes a flattening screen located in the housing downstream from the impeller and an igniter mounted in the burner end of the housing. The igniter is adapted to ignite the air and fuel mixture in the burner end of the housing to produce a main flame.

US Patent:

20080280243, Nov 13, 2008

Filed:

Jul 3, 2007

Appl. No.:

11/824930

Inventors:

Malcolm Swanson - Chickamauga GA, US
Michael Swanson - Chickamauga GA, US
Andrew Hobbs - Sheffield, GB
Russell Fountain - East Ridge TN, US
Kelly Knight - Ringgold GA, US
Eric Wattenbarger - Flat Rock AL, US

International Classification:

F23Q 2/00

US Classification:

431254

Abstract:

A burner assembly including a housing having an air inlet and a burner end, a motor, and an impeller mounted in the housing. The impeller is in fluid communication with the air inlet, in mechanical communication with the motor, and adapted to direct air from the air inlet towards the burner end of the housing. The burner assembly also includes at least one pre-mix gas injection nozzle mounted in the housing. Each of the at least one pre-mix gas injection nozzle has at least one orifice adapted to direct gaseous fuel into the housing. The burner assembly further includes a spin vane comprising at least one spin vane blade. The spin vane is mounted in the burner end of the housing and adapted to direct the flow of air in the burner end. The burner assembly still further includes an igniter mounted in the burner end of the housing. The igniter is adapted to ignite the air and fuel mixture in the burner end of the housing to produce a main flame.

US Patent:

20170227214, Aug 10, 2017

Filed:

Feb 9, 2017

Appl. No.:

15/428602

Inventors:

- Chattanooga TN, US
Joseph Unjakoti - Rock Spring GA, US
Michael Swanson - Chickamauga GA, US
Malcolm Swanson - Chickamauga GA, US
Andrew Hobbs - Sheffield, GB

Assignee:

Astec, Inc. - Chattanooga TN

International Classification:

F23C 7/00
F23D 11/00

Abstract:

A burner nozzle assembly comprising a nozzle body having a body inlet end, a body outlet end spaced apart from the body inlet end, a body air inlet adapted to convey a quantity of air, and a body fuel inlet adapted to convey a quantity of fuel, a nozzle mixer having a mixer inlet end, a mixer outlet end spaced apart from the mixer inlet end, a mixer air inlet adapted to convey the quantity of air, a mixer fuel inlet adapted to convey the quantity of fuel, and a mixing zone, a nozzle cap which is disposed adjacent to the body outlet end and the nozzle mixer, and a pintle which is partially disposed in the nozzle mixer. The mixer air inlet forms a substantially conical shape. A method for producing a burner flame.