Patent ID: 8267254
Filing Date: 2012-09-18
Classification: B07B

Abstract:
1. A separator for separating light weight products, such as, paper from heavier products by air pressure and the force of gravity, said heavier products have some of a first weight and some of a greater weight, comprising: an input conduit to receive light weight products mixed with heavier products and having an opening to external air; a first expansion chamber in fluid communication with said input conduit to receive from said input conduit external air and said light weight products mixed with said heavier products allowing said light weight products and said heavier products to move apart; a source of air pressure in fluid communication with said first expansion chamber and drawing external air through said input conduit; a first outlet conduit in fluid communication with said first expansion chamber to receive said light weight products from said expansion chamber as said source of air pressure forces said light weight products to move from said first expansion chamber into said first outlet; a second conduit extending beneath said chamber to receive heavier products falling from said chamber under the force of gravity, said second conduit having a second outlet through which said heavier products exit said separator under the force of gravity, said second outlet allowing external air to be pulled by said source of air pressure upwardly carrying along any of said light weight products in said second conduit that have moved past said expansion chamber and to move upwardly back into said expansion chamber while allowing said heavier products to continue falling downwardly; an intermediate conduit leading downwardly from said first expansion chamber to receive said heavier products falling therefrom; a third conduit; and, a second expansion chamber in fluid communication with said intermediate conduit, said third conduit and said source of air pressure to receive from said intermediate conduit said heavier products allowing some of said heavier products having a first weight to move apart from some of said heavier products having a greater weight as said source of air pressure forces some of said heavier products of said first weight to move into said third conduit while some of said heavier products of a weight greater than said first weight to fall into said second conduit.