Auxiliary heat transfer attachment unit for an existing fireplace

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Description

FIG. 1 is a rear perspective view of an auxiliary heat transfer attachment unit for an existing fireplace showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3394697 July 1968 Lewis
4019677 April 26, 1977 Dotschkal et al.
4159801 July 3, 1979 Roland
4191163 March 4, 1980 Ballard
Patent History
Patent number: D262234
Type: Grant
Filed: Jul 24, 1978
Date of Patent: Dec 8, 1981
Inventor: Siegfried H. Brueschke (Fort Dodge, IA)
Primary Examiner: Catherine E. Kemper
Law Firm: McCaleb, Lucas & Brugman
Application Number: 5/927,675
Classifications
Current U.S. Class: D23/127
International Classification: D2303;