Combined guiding support and air swirl inducing unit for a burner nozzle and electrode subassembly unit of a waste oil burner

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Description

FIG. 1 is a top, right side, and left end perspective view of a combined guiding support and air swirl inducing unit for a burner nozzle and electrode subassembly unit of a waste oil burner, showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right end elevational view thereof; and,

FIG. 7 is a left end elevational view thereof.

Referenced Cited
U.S. Patent Documents
2655209 October 1953 Newton
4147498 April 3, 1979 Clarke
4397631 August 9, 1983 Fisher
Foreign Patent Documents
75405 March 1991 JPX
308677 July 1955 CHX
Other references
  • Loughborough Oil Co. Brochure, p. 1, bottom left side of page, Luffboro Thrifti-Fier. Fueloil & Oil Heat, Jan. 1964, p. 19, Unit A of the Carlin Flame Retention Head in the "N" Series burner, top left side of page. Heating & Air Conditioner Contractor, Jan. 1964, p. 15, Non-Linting Burner, top right side of page.
Patent History
Patent number: D331105
Type: Grant
Filed: Oct 10, 1990
Date of Patent: Nov 17, 1992
Assignee: Shenandoah Manufacturing Co., Inc. (Harrisonburg, VA)
Inventors: Glenn Bender (Princeton, MO), William H. Johnson (Harrisonburg, VA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Mason, Fenwick & Lawrence
Application Number: 7/596,582
Classifications
Current U.S. Class: Element (D23/418)