Water softener

- Ecowater Systems, Inc.
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Description

FIG. 1 is a front perspective view of a water softener showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The broken lines show a display or control panel for illustrative purposes only, and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D175019 June 1955 Ferar
D205922 October 1966 Moon
D224707 September 1972 Marsh
D231456 April 1974 Marsh
D235062 May 1975 Mayer
D300279 March 14, 1989 Umehara et al.
Patent History
Patent number: D328331
Type: Grant
Filed: Nov 30, 1990
Date of Patent: Jul 28, 1992
Assignee: Ecowater Systems, Inc. (Woodbury, MN)
Inventors: Michael E. Drager (St. Paul, MN), Edward J. Tischler (St. Paul, MN), Dennis G. Winberg (Cottage Grove, MN)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Attorneys: Jon Carl Gealow, James M. Wetzel
Application Number: 7/621,556
Classifications
Current U.S. Class: Treatment (D23/207)