Water purification unit

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FIG. 1 is a front perspective view of a water purification unit, showing our new design therefor;

FIG. 2 is a frontal view therefor;

FIG. 3 is a rear view therefor;

FIG. 4 is a side view therefor, showing the left side;

FIG. 5 is a side view therefor, showing the right side;

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

FIG. 7 is a bottom plan view therefor.

Referenced Cited
U.S. Patent Documents
D236829 September 1975 Berry et al.
D306754 March 20, 1990 Petrucci et al.
D377677 January 28, 1997 Robbins
4713175 December 15, 1987 Bray
5143601 September 1, 1992 Slovak et al.
5407571 April 18, 1995 Rothwell
5662792 September 2, 1997 Suh
Patent History
Patent number: D407462
Type: Grant
Filed: Jul 9, 1997
Date of Patent: Mar 30, 1999
Assignee: Water Resources International Inc. (Phoenix, AZ)
Inventors: Jerry M. Bishop (Tempe, AZ), Douglas M. Horn (Phoenix, AZ)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Robin V. Taylor
Attorneys: Meschkow & Gresham, P.L., Meschkow & Gresham, P.L.
Application Number: 0/73,475
Current U.S. Class: Treatment (D23/207); Filter Or Strainer (2) (D23/209)
International Classification: 2301;