The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2015
Filed:
Mar. 14, 2012
Charles Flansburg, Andover, MN (US);
Chad Mrazek, Ramsey, MN (US);
Michael Ekholm, Minneapolis, MN (US);
David Mattsen, Ramsey, MN (US);
Charles Flansburg, Andover, MN (US);
Chad Mrazek, Ramsey, MN (US);
Michael Ekholm, Minneapolis, MN (US);
David Mattsen, Ramsey, MN (US);
Bilfinger Water Technologies, Inc., New Brighton, MN (US);
Abstract
A screen has a plurality of rods arranged longitudinally around a central axis. The rods have first and second edges (e.g., inner and outer edges). Each of the first edges defines a profile that varies in lateral distances from the central axis along a longitudinal length of the rod. For example, the first edges can have an undulating profile of crests and troughs. With the plurality of rods disposed around the central axis, the profile produces a varied surface on the screen when a plurality of wraps from one or more wires is disposed laterally around rods. These one or more wires attach to the first edges of the rods and form a plurality of gaps.