James Michael Houck

US Patent:

6602306, Aug 5, 2003

Filed:

Apr 18, 2001

Appl. No.:

09/837144

Inventors:

Andrew T. Scott - Portland OR
Eric D. Barford - Stockton CA
James E. Houck - Portland OR

Assignee:

Duraflame, Inc. - Stockton CA

International Classification:

C10L 500

US Classification:

44535, 44591, 44607, 44589

Abstract:

An artificial firelog comprising a mixture of combustible materials and a combustible binder further contains particulate coke comprising about 1% to about 35% by weight of the firelog, the coke particles having a size less than about 4 mm, to create a realistic crackling sound that mimics the sounds produced during the burning of natural logs. The particulate coke has a preferred moisture content between about 2% and about 20% by weight. The particulate coke may be combined in predetermined ratios with other established crackle additives including natural additives such as coriander seed to extend the time period during which the burning artificial firelog crackles. Preferably, the particulate coke comprises metallurgical coke.