Single tank water softener

- Ecowater Systems, Inc.
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Description

FIG. 1 is a right front perspective view of the single tank water softener;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Claims

The ornamental design for the single tank water softener, as shown.

Referenced Cited
U.S. Patent Documents
D221075 July 1971 Marsh
D224708 September 1972 Marsh
D231456 April 1974 Marsh
D245786 September 13, 1977 Marsh
D332480 January 12, 1993 Sieren
Patent History
Patent number: D439950
Type: Grant
Filed: Mar 24, 2000
Date of Patent: Apr 3, 2001
Assignee: Ecowater Systems, Inc. (St. Paul, MN)
Inventors: Christine Fletcher (Elk River, MN), Christopher I. Hilgers (Eagan, MN), Kurt Taylor (Burnsville, MN), David Bardwell (Woodbury, MN)
Primary Examiner: Robin V. Taylor
Attorney, Agent or Law Firm: Piper, Marbury, Rudnick & Wolfe
Application Number: 29/120,751
Classifications
Current U.S. Class: Treatment (D23/207)
International Classification: 2301;