Profiled Wire Screen for Process Flow and Other Applications
AssigneeJohnson Screens, Inc.
InventorsCharles Flansburg, Chad Mrazek, Michael Ekholm, David Mattsen
Life of this patent
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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.
Claims21
A screen, comprising:
- a plurality of rods having a longitudinal length and having first and second edges, the rods arranged longitudinally around a central axis, one or more of the first edges having a non-linear profile, the non-linear profile varying in lateral distances from the central axis along the longitudinal length of the rod;
- and
- one or more wires wrapped laterally in a plurality of wraps around the central axis and attached to the first edges of the rods, the plurality of wraps having a plurality of gaps between the wraps and forming a screen surface of the screen.
A screen, comprising:
- a plurality of rods arranged along a longitudinal length of the screen and circumscribing a central axis of the screen, each rod having first and second edges, one or more of the first edges having a non-circular profile, the non-circular profile varying in radial distances from the central axis around a perimeter of the screen;
- and
- a plurality of wires disposed longitudinally around the central axis and attached to the first edges of the rods, the plurality of wires defining a plurality of gaps therebetween and forming a screen surface of the screen.
A screen, comprising:
- a plurality of circular rods arranged along a longitudinal length of the screen and circumscribing a central axis of the screen, each circular rod having first and second edges, one or more of the circular rods having diameters different from other rods;
- and
- a plurality of wires disposed longitudinally around the central axis and attached to the first edges of the circular rods, the plurality of wires defining a plurality of gaps therebetween and forming a screen surface of the screen.
A method of forming a screen, comprising:
- arranging rods relative to an axis, the rods having first edges;
- disposing one or more of the first edges of one or more of the rods with one or more non-uniform profiles varying along the one or more first edges relative to the axis;
- and
- forming a screen surface by attaching one or more wires to the first edges of the rods.
Dependencies are inferred from the claim text.