Dual burner

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Description

FIG. 1 is a front isometric view of a dual burner showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The details shown in broken lines form no part of the claimed design.

Claims

The ornamental design for a dual burner, as shown and described.

Referenced Cited
U.S. Patent Documents
2383188 August 1945 Griswold
D196018 August 1963 Palmer
D214297 May 1969 Ihde
D229277 November 1973 Ming-Kong
3877458 April 1975 Allander
D235959 July 1975 Allander
D244664 June 14, 1977 Monnet
D244985 July 12, 1977 Folke
D249448 September 19, 1978 Vache
D254165 February 12, 1980 Woodward
D261347 October 20, 1981 Lutz
4471751 September 18, 1984 Hottenroth et al.
4512328 April 23, 1985 Arad
5024208 June 18, 1991 Hottenroth et al.
5197454 March 30, 1993 Lee
D350256 September 6, 1994 Wang
D355809 February 28, 1995 Kothrade
5480608 January 2, 1996 Tsuda et al.
D371716 July 16, 1996 Jo
5881709 March 16, 1999 Daoust
D424364 May 9, 2000 Persson
6138661 October 31, 2000 Cooper
D435191 December 19, 2000 Cooper
D444991 July 17, 2001 Measom
D445296 July 24, 2001 Kenyon
D447664 September 11, 2001 Stephens
D478771 August 26, 2003 Wu
D488023 April 6, 2004 Siegel
D491409 June 15, 2004 Siegel
D512264 December 6, 2005 May
D612662 March 30, 2010 Lorenz et al.
20070034198 February 15, 2007 Arad
20080168979 July 17, 2008 Goehring
20100258104 October 14, 2010 Defoort et al.
Other references
  • U.S. Appl. No. 29/335,240, filed Apr. 10, 2009, Lorenz et al.
  • Oorja (BP), “BioEnergy Lists: Biomass Cooking Stoves”, located at http://www.bioenergylists.org/taxonomy/term1339, retrieved at least as early as Mar. 2009, 3 pages.
  • Managala Stove, Gen. I, EnviroFit International, Ltd., Nov. 2007, 1 page.
  • Managala Stove Double, Gen. I, EnviroFit International, Ltd., Nov. 2007, 1 page.
  • “EnviroFit Clean Cookstoves”, Stove and Stove Double, Gen. II, Catalog, EnviroFit International, Ltd., at least as early as May 2008, 18 pages.
  • Still, “Larry Winiarski's Rocket Stove Principles”, located at http://www.bioenerqylists.org/stovesdoc/Still/Rocket%20Stove/Principles.htrnl, Apr. 2002, 3 pages.
  • Wikipedia, “Rocket Stove”, located at http://en.wikipedia.org/wiki/Rocketstove, retrieved at least as early as Mar. 11, 2009, 4 pages.
  • Koninklijke Philips Electronics N.V., “Philips Woodstove”, located at http://research.philips.com/newscenter/pictures/downloads/misc-sustainability, retrieved at least as early as Mar. 12, 2009, 1 page.
  • Hedon Household Energy Network, Insulative Ceramics For Improved Cooking Stores by Dean Still et al., located at http://www.hedon.info/InsulativeCeramicsForImprovedCookingStoves, retrieved at least as early as Mar. 12, 2009, 7 pages.
  • Anderson, Paul S., “The Origins of the Juntos Gasifier Stoves: Short Version”, Dept. of Geography-Geology, Illinois State Univ., Sep. 2002, 1 page.
  • Koninklijke Philips Electronics N.V., photographs of Cook Stove, obtained at least as early as Mar. 5, 2009, 5 pages.
  • British Petroleum p.l.c., photographs of Cook Stove, obtained at least as early as Mar. 5, 2009, 5 pages.
  • Reed et al., “The ‘Turbo’ Wood-Gas Stove”, located at http://www.bioenergylists.org/stovesdoc/Reed/Turbo2.htm, retrieved at least as early as Mar. 10, 2009, 5 pages.
  • Biomass Energy Foundation, “Woodgas”, located at http://www.woodgas.com, retrieved at least as early as Mar. 10, 2009, 4 pages.
  • Spautz et al., “Spreading innovative biomass stove technologies through China and beyond”, located at http://www.hedon.info/docs/BP52-3-spautz.pdf, retrieved at least as early as Mar. 2009, pp. 6-8.
  • Suvarnakuta et al., “Biomass Cooking Stove for Sustainable Energy and Environment”, The 2nd Joint International Conference on “Sustainable Energy and Environment (SEE 2006)”, located at http://www.jgsee.kmutt.ac.th/see1/cd/file/C-014.pdf, Nov. 21-23, 2006, 5 pages.
  • MacCarty et al., “Laboratory Comparison of the Global-Warming Potential of Six Categories of Biomass Cooking Stoves”, located at http://www.aprovecho.org/web-content/publications/assets/Globalwarmingfull9-6-07.pdf, Sep. 2007, 26 pages.
  • Notice of Allowance and Fee(s) Due, Notice of Allowability For A Design Application, and PTO-892, U.S. Appl. No. 29/335,240, filed Nov. 23, 2009, 7 pages.
  • U.S. Appl. No. 12/756,386, filed Apr. 8, 2010, DeFoort et al.
Patent History
Patent number: D640497
Type: Grant
Filed: Apr 10, 2009
Date of Patent: Jun 28, 2011
Assignee: Envirofit International, Ltd. (Fort Collins, CO)
Inventors: Nathan Lorenz (Fort Collins, CO), Jesse Walker (Fort Collins, CO), Eric Listenberger (Moorestown, NJ), Clark Mozer (Fort Collins, CO)
Primary Examiner: Ruth McInroy
Attorney: Dorsey & Whitney LLP
Application Number: 29/335,241
Classifications
Current U.S. Class: D7/337