Device for biological purification of waste water

- Biowater Technology AS
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Description

FIG. 1 is a perspective view of a device for biological purification of waste water in accordance with my design;

FIG. 2 is a first side view of the device for biological purification of waste water in accordance with my design;

FIG. 3 is a second side view of the device for biological purification of waste water in accordance with my design;

FIG. 4 is a third side view of the device for biological purification of waste water in accordance with my design;

FIG. 5 is a fourth side view of the device for biological purification of waste water in accordance with my design;

FIG. 6 is a top plan view of the device for biological purification of waste water in accordance with my design; and,

FIG. 7 is a bottom plan view of the device for biological purification of waste water in accordance with my design.

Claims

The ornamental design for device for biological purification of waste water, as shown and described.

Referenced Cited
U.S. Patent Documents
D253273 October 30, 1979 Matzdorff
4925561 May 15, 1990 Ishii et al.
6889963 May 10, 2005 Niknafs et al.
7189323 March 13, 2007 Lofqvist et al.
Foreign Patent Documents
20080109 August 2008 NO
Patent History
Patent number: D619201
Type: Grant
Filed: Jul 16, 2009
Date of Patent: Jul 6, 2010
Assignee: Biowater Technology AS (Tonsberg)
Inventor: Thorbjørn Westrum (Kongsberg)
Primary Examiner: Robin V Webster
Attorney: Winstead PC
Application Number: 29/315,704
Classifications
Current U.S. Class: Treatment (D23/207)