Fireplace heat exchange unit

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Description

FIG. 1 is a top front and right side perspective view of a fireplace heat exchange unit showing my new design;

FIG. 2 is a front elevational view thereof on a reduced scale;

FIG. 3 is a rear elevational view thereof on a reduced scale;

FIG. 4 is a left side elevational view thereof on a reduced scale;

FIG. 5 is a right side elevational view thereof on a reduced scale;

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

FIG. 7 is a bottom plan view thereof on a reduced scale.

Referenced Cited
U.S. Patent Documents
D253067 October 2, 1979 Hartley
4185612 January 29, 1980 Briner et al.
4286975 September 1, 1981 Whiteley
4295519 October 20, 1981 Bellaff
4390352 June 28, 1983 Griin
Other references
  • Atlanta Stove Works Birmingham, Stove & Range Co. ADv. Brochure, .COPYRGT.1984, p. 5, Heat Reclaimer, left bottom side of page. Woodstove, Coalstove, Fireplace and Equipment Directory, p. 290, Energizer-AHWC-10S, top right side of page. Miracle Heat Inc. ADV. Brochure, Miracle Neat Cat 2000, top of page.
Patent History
Patent number: D330076
Type: Grant
Filed: Mar 12, 1991
Date of Patent: Oct 6, 1992
Inventor: Dennis D. Evans (Virginia Beach, VA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorney: Terry M. Gernstein
Application Number: 7/668,451