US 9,808,834 B2
Mobile screening apparatus
John Andersen, Runaway Bay (AU)
Assigned to AAA Screens Pty Ltd, Oxenford (AU)
Appl. No. 14/383,917
Filed by AAA SCREENS PTY LTD, Oxenford, QLD (AU)
PCT Filed Mar. 11, 2013, PCT No. PCT/AU2013/000230
§ 371(c)(1), (2) Date Sep. 9, 2014,
PCT Pub. No. WO2013/131145, PCT Pub. Date Sep. 12, 2013.
Claims priority of application No. 2012900959 (AU), filed on Mar. 9, 2012.
Prior Publication US 2015/0027932 A1, Jan. 29, 2015
Int. Cl. B07B 13/16 (2006.01); B07B 1/00 (2006.01); B07B 15/00 (2006.01)
CPC B07B 13/16 (2013.01) [B07B 1/005 (2013.01); B07B 15/00 (2013.01); B07B 2201/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A mobile screening apparatus that comprises:
a support chassis;
a screening assembly carried on the support chassis, the screening assembly having a plurality of screen decks, said plurality of screen decks including a top screen deck, a first intermediate screen deck, a second intermediate screen deck, and a bottom screen deck; and
a primary feed conveyor and at least one secondary feed conveyor; wherein:
the primary conveyor and the at least one secondary conveyor are configured for arrangement in communication with a feed end of at least one of the screen decks to feed material to be screened onto the at least one of the screen decks at a feed end of the screening assembly; and
the apparatus includes a transfer conveyor assembly that is configured for arrangement in communication with a discharge end of the screening assembly and that includes:
a first set of two transfer conveyors that are transversely oriented with respect to a feed direction and
configured to receive product from the top screen deck and the first intermediate screen deck, respectively;
a second set of two transfer conveyors that are configured to receive product from the second intermediate deck and the bottom screen deck, respectively; and
two intermediate conveyors that are configured for transferring product from the second intermediate screen deck and the bottom screen deck, respectively, to the transfer conveyors of the second set of two transfer conveyors.