Patent ID: 8813968
Filing Date: 2014-08-26
Classification: B07B

Abstract:
1. A wood pellet screen apparatus comprising: a housing having a pair of legs for the support thereof; the housing comprised of a series of interconnected walls that form a collection chamber; an elongated screen disposed in the housing over the collection chamber; the screen constructed and arranged to received wood pellets deposited thereon; the screen further constructed and arranged to be tilted at an angle to the horizontal so that as wood pellets are deposited at a top of the screen the wood pellets progress along the screen under gravity control; wherein the interconnected walls are comprised of a bottom wall, a pair of side walls, and a rear wall that together define the collection chamber; wherein the screen has top and bottom ends and opposed sides; wherein the screen has a length greater than its width, including a center longitudinal axis that extends between the top and bottom ends of the screen and wherein the opposed sides of the screen connect between the respective sidewalls of the housing; wherein the screen has an arcuate concave curvature in a single curvature with the longitudinal axis disposed at a low point of the curvature; wherein the screen has a series of adjacent apertures over which the wood pellets progress; wherein each of the apertures are diamond shaped and each has a set of upwardly facing sharp edges in a V-shape; wherein each of the upwardly facing edges defining the diamond shaped apertures is sharp so that as each wood pellet progresses down the screen the optimum screening process occurs by virtue of the individual wood pellets contacting these sharp edges to remove any excess particles or dust from the wood pellet; further including legs for supporting the housing above a ground level including respective front and rear legs respectively supported closer to bottom and rear walls of the housing, the rear leg being longer than the front leg so as to tilt the screen at the angle to the horizontal so that as wood pellets are deposited at a top of the screen the wood pellets progress along the screen under gravity control; wherein the screen tilt angle is in a range of 30-45 degrees so as to control the rate that the particles progress as they travel down the screen under gravity control.