Heat exchanger

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Description

FIG. 1 is a perspective view of a heat exchanger, showing our design;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design.

Claims

We claim the ornamental design for a heat exchanger, as shown and described.

Referenced Cited
U.S. Patent Documents
1863056 June 1932 Kuenstler
2725726 December 1955 Swanson
3115757 December 1963 Day
D253067 October 2, 1979 Hartley
D264708 June 1, 1982 Lesyk
D264709 June 1, 1982 Lesyk
D276933 December 25, 1984 Welch et al.
D282870 March 4, 1986 Benning et al.
5159819 November 3, 1992 Wong
D360258 July 11, 1995 Shellenberger
6168765 January 2, 2001 Romatier et al.
6953081 October 11, 2005 Klingler et al.
20060021742 February 2, 2006 Lee et al.
Patent History
Patent number: D570988
Type: Grant
Filed: Jan 18, 2008
Date of Patent: Jun 10, 2008
Assignee: Bou-matic Technologies Corporation (Houston, TX)
Inventors: David M. Cink (Sun Prairie, WI), Vincent Yu (Madison, WI), Kenneth C. Gehring (Cottage Grove, WI)
Primary Examiner: Louis S Zarfas
Assistant Examiner: David G Muller
Attorney: Andrus, Sceales, Starke & Sawall, LLP
Application Number: 29/302,572
Classifications
Current U.S. Class: Element Or Attachment, Not Elsewhere Specified (D23/386)