Fireplace heat exchanger

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Description

FIG. 1 is a perspective view of a fireplace heat exchanger showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a front elevation view thereof;

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

FIG. 7 is a bottom plan view thereof.

The conventional cord has been shown fragmentarily in FIGS. 1 and 2 for ease of illustration.

Referenced Cited
U.S. Patent Documents
4010729 March 8, 1977 Egli
4049196 September 20, 1977 Bergami, Jr. et al.
4060196 November 29, 1977 Goldsby et al.
Patent History
Patent number: D253067
Type: Grant
Filed: Aug 15, 1977
Date of Patent: Oct 2, 1979
Inventor: Ronald C. Hartley (Eugene, OR)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Catherine Kemper
Attorney: Kenneth S. Klarquist
Application Number: 5/824,567
Classifications
Current U.S. Class: D23/95; D/7206
International Classification: D2303; D0708;