Furnace Patents (Class D23/329)

Door panel for a residential gas furnace

Patent number: D501544

Type: Grant

Filed: February 12, 2004

Date of Patent: February 1, 2005

Assignee: York International Corporation

Inventors: Mickey S. Smith, Daniel James Arnold, Thomas Dale Chase, Bryan Keith Rocky, Mark Allen Ritz, Doug James Widenmann
Door panel for a residential gas furnace

Patent number: D502254

Type: Grant

Filed: February 12, 2004

Date of Patent: February 22, 2005

Assignee: York International Corporation

Inventors: Mickey S. Smith, Daniel J. Arnold, Thomas D. Chase, Byron R. Davidson, Bryan K. Rocky, Mark A. Ritz, Doug J. Widenmann
Roller hearth reheat furnace tire

Patent number: D466597

Type: Grant

Filed: November 10, 2000

Date of Patent: December 3, 2002

Assignee: Bricmont, Inc.

Inventor: Hugh B. Carr
Down discharge heating and cooling unit

Patent number: D292228

Type: Grant

Filed: November 28, 1984

Date of Patent: October 6, 1987

Inventor: Leonard A. Framalin
Friction furnace

Patent number: D297045

Type: Grant

Filed: September 16, 1985

Date of Patent: August 2, 1988

Inventor: Louis D. Powell
Friction furnace

Patent number: D300772

Type: Grant

Filed: September 4, 1986

Date of Patent: April 18, 1989

Inventor: Louis D. Powell
Double door unit for a firebox

Patent number: D345203

Type: Grant

Filed: July 2, 1991

Date of Patent: March 15, 1994

Inventor: Leslie Blevins, Jr.
Front and side panels of a firebox with automatic feed hopper

Patent number: D350189

Type: Grant

Filed: April 29, 1992

Date of Patent: August 30, 1994

Inventor: Leslie Blevins, Jr.
Furnace enclosure with double doors unit for a firebox

Patent number: D357063

Type: Grant

Filed: July 2, 1991

Date of Patent: April 4, 1995

Inventor: Leslie Blevins, Jr.
Heat exchanger for fuel fired furnaces

Patent number: D360258

Type: Grant

Filed: December 10, 1993

Date of Patent: July 11, 1995

Assignee: Rheem Manufacturing Company

Inventor: Timothy J. Shellenberger
Assembly of cast refractory segments of an annealing furnace base

Patent number: D371836

Type: Grant

Filed: December 21, 1994

Date of Patent: July 16, 1996

Inventor: Gary L. Coble
Cast refractory corner segment of an annealing furnace base

Patent number: D371837

Type: Grant

Filed: December 21, 1994

Date of Patent: July 16, 1996

Inventor: Gary L. Coble
Assembly of arcuate cast refractory and steel segments of an annealing furnace base

Patent number: D374072

Type: Grant

Filed: December 21, 1994

Date of Patent: September 24, 1996

Inventor: Gary L. Coble
Cast refractory side segment of an annealing furnace base

Patent number: D374073

Type: Grant

Filed: December 21, 1994

Date of Patent: September 24, 1996

Inventor: Gary L. Coble
Pellet hopper for a pellet-burning grill

Patent number: D377391

Type: Grant

Filed: May 30, 1995

Date of Patent: January 14, 1997

Inventor: Richard E. Whitehurst, Sr.
Arcuate cast refractory and steel segment of an annealing furnace base

Patent number: D382339

Type: Grant

Filed: December 21, 1994

Date of Patent: August 12, 1997

Inventor: Gary L. Coble
Support base

Patent number: D407479

Type: Grant

Filed: June 10, 1997

Date of Patent: March 30, 1999

Inventor: Carl F. Sternberg, Sr.
Burner

Patent number: D421296

Type: Grant

Filed: December 19, 1997

Date of Patent: February 29, 2000

Assignee: Limpsfield Combustion Ltd.

Inventor: Brendan Kemp

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