Combined grate and fireplace heat exchanger

- Arvin Industries, Inc.
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Description

FIG. 1 is a front perspective view of a combined grate and fireplace heat exchanger showing our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front perspective view of a second embodiment thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a left side elevational view thereof;

FIG. 13 is a right side elevational view thereof; and

FIG. 14 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D240536 July 1976 Christophel
D242542 November 1976 Betenbaugh, Jr.
4114590 September 19, 1978 Frahm
Patent History
Patent number: D254388
Type: Grant
Filed: Feb 21, 1978
Date of Patent: Mar 4, 1980
Assignee: Arvin Industries, Inc. (Columbus, IN)
Inventors: Amos E. Chesnut (Columbus, IN), Albert J. Parrigin (Scipio, IN)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Catherine Kemper
Attorney: Thomas P. Jenkins
Application Number: 5/879,099
Classifications
Current U.S. Class: D23/95; D/7208; D23/96
International Classification: D0708; D2303;