In-line heater for hot water carpet cleaning extractors

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Description

FIG. 1 is a front perspective view of an in-line heater for hot water carpet cleaning extractors showing my new design;

FIG. 2 is a rear perspective view thereof; and,

FIG. 3 is a side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D293711 January 12, 1988 Hart
D307017 April 3, 1990 Polk et al.
4910828 March 27, 1990 Blase et al.
Patent History
Patent number: D339434
Type: Grant
Filed: Jun 2, 1991
Date of Patent: Sep 14, 1993
Inventor: William K. Shero (Fountain Valley, CA)
Primary Examiner: Ruth McInroy
Law Firm: Stetina and Brunda
Application Number: 7/724,961
Classifications
Current U.S. Class: For Vacuum Cleaner (D32/31)