Injection molded screening apparatuses and methods
AssigneeDerrick Corporation
InventorKeith Wojciechowski
Life of this patent
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Abstract
Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.
Claims30
A screening surface, comprising:
- multiple independent screen elements that each have a synthetic surface having openings with sizes in a range from approximately 35 microns to approximately 4,000 microns,
- wherein the screen elements are configured to be secured to a support structure to thereby form a continuous screening surface, and
- wherein the synthetic surface has an open screening area of approximately 5% to approximately 35% of a total area of the screening surface.
A screen element configured to separate particulate solids based on particulate size, the screen element comprising:
- a synthetic surface having openings with sizes in a range from approximately 35 microns to approximately 4,000 microns, the screen openings configured to block particulates having sizes larger than the smallest dimension,
- wherein the screen element has an open screening area in a range from approximately 5% to approximately 35% of a total area of the continuous screening surface.
A method of fabricating a screening surface, comprising:
- generating multiple independent screen elements that each have a synthetic surface having openings with sizes in a range from approximately 35 microns to approximately 4,000 microns,
- generating a support structure;
- and
- securing the screen elements to the support structure to thereby form a continuous screening surface,
- wherein the synthetic surface has an open screening area of approximately 5% to approximately 35% of a total area of the screening surface.
Dependencies are inferred from the claim text.