Water heater burner clogging detection and shutdown system

Details Water heater burner clogging detection and shutdown system Water heater burner clogging detection and shutdown system

2006-09-27

2009-10-27

Wilson, Gregory A (Department: 3749)

Liquid heaters and vaporizers

Stand boiler

And condition responsive feature

C122S014100, C122S014310, C431S278000

Reexamination Certificate

active

07607408

ABSTRACT:
A fuel-fired water heater has main and pilot burners disposed in its combustion chamber. Illustratively, all of the primary combustion air utilized by the main and pilot burners during firing thereof is supplied thereto via an enclosed path extending to the burners from outside of the combustion chamber. A burner clogging detection system is operative to shut down further combustion, upon sensing a condition of the pilot burner flame indicative of a predetermined degree of pilot burner clogging, prior to the main burner being clogged to an unacceptable degree by particulate matter entrained in incoming combustion air being delivered to the main burner.

REFERENCES:
patent: 1302914 (1919-05-01), Goreau
patent: 2112655 (1938-03-01), Morrow
patent: 2885150 (1959-05-01), Douglas
patent: 3122195 (1964-02-01), Kimmel et al.
patent: 3561896 (1971-02-01), Riehl
patent: 3622257 (1971-11-01), Hein et al.
patent: 3692016 (1972-09-01), Stikkers et al.
patent: 3834856 (1974-09-01), James
patent: 3992137 (1976-11-01), Streisel
patent: 4059386 (1977-11-01), Eising
patent: 4125356 (1978-11-01), Ohashi et al.
patent: 4413976 (1983-11-01), Scherer
patent: 4597733 (1986-07-01), Dean et al.
patent: 4613300 (1986-09-01), Simpson
patent: 4919084 (1990-04-01), Maurice
patent: 4976609 (1990-12-01), Grob et al.
patent: 5165887 (1992-11-01), Ahmady
patent: 5197665 (1993-03-01), Jenson et al.
patent: 5240411 (1993-08-01), Abalos
patent: 5318436 (1994-06-01), Colket, III et al.
patent: 5520536 (1996-05-01), Rodgers et al.
patent: 5554021 (1996-09-01), Robertson et al.
patent: 5575273 (1996-11-01), Moore, Jr.
patent: 5630517 (1997-05-01), Maznik
patent: 5797355 (1998-08-01), Bourke et al.
patent: 5979673 (1999-11-01), Dooley
patent: 6031209 (2000-02-01), Wiesman
patent: 6085699 (2000-07-01), Valcic et al.
patent: 6113384 (2000-09-01), Sebastiani
patent: 6139311 (2000-10-01), Bowman et al.
patent: 6295951 (2001-10-01), Valcic et al.
patent: 6340298 (2002-01-01), Vandrak et al.
patent: 6497200 (2002-12-01), Stretch et al.
patent: 6508056 (2003-01-01), Brandon
patent: 6520771 (2003-02-01), Berry
patent: 6540504 (2003-04-01), Kobayashi et al.
patent: 6546897 (2003-04-01), Edds et al.
patent: 6554608 (2003-04-01), Bowman et al.
patent: 6561138 (2003-05-01), Kobayashi et al.
patent: 6648627 (2003-11-01), Dane
patent: 6743010 (2004-06-01), Bridgeman et al.
patent: 6761134 (2004-07-01), Trant
patent: 6814031 (2004-11-01), Stretch et al.
patent: 7028642 (2006-04-01), Peart
patent: 7051530 (2006-05-01), Blomeyer
patent: 7261061 (2007-08-01), Shellenberger et al.
patent: 2001/0029905 (2001-10-01), Kobayashi et al.
patent: 2002/0152971 (2002-10-01), Kobayashi et al.
patent: 2003/0183177 (2003-10-01), Kobayashi et al.
patent: 2003/0188699 (2003-10-01), Valcic et al.
patent: 2005/0092262 (2005-05-01), Lesage
patent: 2006/0105281 (2006-05-01), Peart
patent: 2006/0118063 (2006-06-01), Shellenberger et al.
patent: 7035341 (1995-02-01), None
patent: 9196361 (1997-07-01), None
patent: 2002106838 (2002-04-01), None
patent: 2002106838 (2002-04-01), None
patent: 2002106838 (2002-10-01), None
May 26, 2005 New Zealand Examination Report.
United States Patent and Trademark Office, Office Action mailed May 28, 2008, U.S. Appl. No. 11/534,720, 12 pages, Alexandria, Virginia.
United States Patent and Trademark Office, Office Action mailed Oct. 1, 2008, U.S. Appl. No. 11/534,720, 11 pages, Alexandria, Virginia.
United States Patent and Trademark Office, Advisory Action Before the Filing of an Appeal Brief mailed Oct. 28, 2008, U.S. Appl. No. 11/534,720, 3 pages, Alexandria, Virginia.
United States Patent and Trademark Office, Office Action mailed Feb. 10, 2009, U.S. Appl. No. 11/534,720, 10 pages, Alexandria, Virginia.

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