External heat exchanger for upholstery and carpet cleaning equipment

- U. S. Products, Inc.
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Description

FIG. 1 is a front perspective view of an external heat exchanger showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan 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; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of the hoses is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D241266 August 1976 Dillon
D311723 October 30, 1990 Eggleston et al.
2585132 February 1952 Kazmadge
3188503 June 1965 Hendry
4724824 February 16, 1988 McCoy et al.
4764660 August 16, 1988 Swiatosz
Patent History
Patent number: D326545
Type: Grant
Filed: Jan 31, 1989
Date of Patent: May 26, 1992
Assignee: U. S. Products, Inc. (Hayden, IN)
Inventors: Bernard Gurstein (Agoura Hills, CA), Russell Gurstein (Agoura Hills, CA)
Primary Examiner: James R. Largen
Assistant Examiner: Paula Allen Mortimer
Law Firm: Browdy and Neimark
Application Number: 7/304,254
Classifications
Current U.S. Class: Control Or Panel Therefor (D32/28)