COMPOSITE SCREEN FRAME WITH SEMI-FLEXIBLE MECHANICAL STRAIN RELIEF

摘要

An apparatus and a method filters particles using a screen assembly with an inner section, an outer section and a screen material. The inner section and the outer section form an opening. The screen material is stretched across the opening and is supported by the inner section. The inner section is flexible relative to the outer section. When particles are introduced to the screen material, the inner section flexes to reduce strain on the screen material.

主权项

1. An apparatus comprising:
a screen frame having an inner section and an outer section, the inner section and the outer section defining an opening, the outer section having an inner edge defining at least a portion of the opening wherein the inner section extends inwardly beyond the inner edge of the outer section, the inner section and the outer section being integrally formed from a polymeric material wherein a portion of the inner section flexes downwardly with respect to the outer section; and a screen material stretched across the opening and secured to the outer section of the screen frame wherein the inner section supports the screen material at least partially around the opening.