Fireplace heat exchanger
Hartley October 2, 1
U.S. patent number D253,067 [Application Number 05/824,567] was granted by the patent office on 1979-10-02 for fireplace heat exchanger. Invention is credited to Ronald C. Hartley.
| United States Patent | D253,067 |
| Hartley | October 2, 1979 |
Fireplace heat exchanger
Claims
The ornamental design for a fireplace heat exchanger, as shown and described.
| Inventors: | Hartley; Ronald C. (Eugene, OR) |
|---|---|
| Appl. No.: | 05/824,567 |
| Filed: | August 15, 1977 |
| Current U.S. Class: | D23/399; D23/405 |
| Current International Class: | D2303; D0708 |
| Field of Search: | ;126/120,121,163R,163A,164,165 ;237/51 ;D7/206 ;D23/93,97,127,95 |
References Cited [Referenced By]
U.S. Patent Documents
| 4010729 | March 1977 | Egli |
| 4049196 | September 1977 | Bergami, Jr. et al. |
| 4060196 | November 1977 | Goldsby et al. |
Assistant Examiner: Kemper; Catherine
Attorney, Agent or Firm: Klarquist; Kenneth S.
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.
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