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1. (WO2018053236) AMASSING PICK AND/OR STORAGE TASK DENSITY FOR INTER-FLOOR TRANSFER

Pub. No.:    WO/2018/053236    International Application No.:    PCT/US2017/051731
Publication Date: Fri Mar 23 00:59:59 CET 2018 International Filing Date: Sat Sep 16 01:59:59 CEST 2017
IPC: B65G 1/137
G05B 19/418
G06Q 10/08
B25J 9/00
Applicants: AMAZON TECHNOLOGIES, INC.
Inventors: DURHAM, Joseph W.
DRESSER, Scott
LONGTINE, John Gregory
MILLS, Diane Grieselhuber
WELLMAN, Parris S.
WILSON, Steven Augustine
Title: AMASSING PICK AND/OR STORAGE TASK DENSITY FOR INTER-FLOOR TRANSFER
Abstract:
A transfer rack (1038) on one floor of an inventory system can receive multiple containers (60) each carrying an inventory item retireved from a storage rack (1030) in a storage area, and designated for an operation on a different floor (1050, 1052) of the inventory system. A vertical lift (1012) can move the transfer rack carrying the multiple containers from the one floor to the different floor. On the different floor, the multiple containers may be swapped for different multiple containers stored in a shuttle rack (1032), each carrying an inventory item designated for an operation on the one floor. The vertical lift may return the transfer rack carrying the different multiple containers to the one floor.