Filter media for water treatment systems

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Description

FIG. 1 is a front elevational view of the filter media for water treatment systems showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right-side elevational view thereof;

FIG. 4 is a left-side elevational view thereof;

FIG. 5 is a top plan view thereof;

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

FIG. 7 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
D232236 July 1974 La Borde
D232239 July 1974 La Borde
2212932 August 1940 Fairlie
3364656 January 1968 Whiton et al.
3823924 July 1974 Moon, Jr.
4581299 April 8, 1986 Jager
4668442 May 26, 1987 Lang
4842920 June 27, 1989 Banai et al.
Patent History
Patent number: D331793
Type: Grant
Filed: Jun 26, 1990
Date of Patent: Dec 15, 1992
Inventor: Rudolf Erwes (D-5950 Finnentrop)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Attorneys: Herbert Dubno, Ronald Lianides
Application Number: 7/543,952
Classifications
Current U.S. Class: Filter Or Strainer (2) (D23/209)