Patent ID: 8640879
Filing Date: 2014-02-04
Classification: B29B,B29K,Y02W

Abstract:
1. A method of separating a mixture of solid materials, the method comprising: supplying a stream of a mixture of solid materials to a stationary inclined surface, said mixture including a plurality of particles, the plurality of particles including rubber particles and plastic particles, wherein the particles of said mixture contacts the stationary inclined surface and travel downward along the surface due to gravitational force; and collecting a plurality of particles at one or more collection ports spaced from and located along the axis of the inclined surface, wherein the collected particles comprise a higher percentage of the rubber particles than said mixture due to a greater degree of bouncing of the rubber particles due to their higher friction compared with plastic particles, wherein a dampening device is positioned at the top of the stationary inclined surface to change the trajectories of at least some particles supplied to the stationary inclined surface, wherein the dampening device comprises fabric, coated fabric or a flexible plastic or rubber sheet.