Patent ID: 7882958

Claim:
Trommel screen machine, comprising at least one revolving screening drum, at least one drive for the screening drum, a feeding hopper located on a side of the screening drum, at least one disc screen located upstream from the feeding hopper, directly vertically above the feeding hopper and completely covering the feeding hopper for dropping already screened product into the feeding hopper, said at least one disc screen being at a height vertically above the screening drum, and the at least one disc screen being at an angle with respect to a transport direction of goods through the screening drum and through the feeding hopper, said at least one disc screen having a first end and a second end, said first end being located adjacent to the screening drum, said second end being spaced from said screening drum and being at a higher elevation than said first end, said feeding hopper feeding goods screened by the at least one disc screen to the at least one screening drum, a first collecting and transport device for collecting and transporting screened undersized goods from the screening drum, a second collecting and transport device for collecting and transporting predetermined sized goods from the at least one screening drum, a third collecting and transport device for collecting and transporting screened oversize goods from the at least one disc screen.