Pair of step bar elements for an inclined walking beam-type bar screen employed in wastewater filtration
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Description
FIG. 1 is a top, front and left side perspective view of a pair of step bar elements for an inclined walking beam-type bar screen employed in wastewater filtration showing my new design;
FIG. 2 is a front elevational view thereof, the rear being generally similar in appearance;
FIG. 3 is a top, front and left side perspective view of one element thereof, the side opposite being a mirror image;
FIG. 4 is a front elevational view of the element of FIG. 3;
FIG. 5 is a top, front and left side elevational view of the adjacent element thereof, the side opposite being a mirror image; and
FIG. 6 is a front elevational view of the element of FIG. 5.
Referenced Cited
Patent History
Patent number: D299155
Type: Grant
Filed: Nov 19, 1985
Date of Patent: Dec 27, 1988
Assignee: Hydropress Wallander & Co. AB (Goteborg)
Inventor: Carl O. Wallander (Vastra Frolunda)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Cushman, Darby & Cushman
Application Number: 6/805,925
Type: Grant
Filed: Nov 19, 1985
Date of Patent: Dec 27, 1988
Assignee: Hydropress Wallander & Co. AB (Goteborg)
Inventor: Carl O. Wallander (Vastra Frolunda)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Cushman, Darby & Cushman
Application Number: 6/805,925
Classifications
Current U.S. Class:
Treatment (D23/207)