Robert V. Neuhoff;Robert V. Neuhoff, JR.;Joseph H. Murdler; JR.
发明人:
Robert V. Neuhoff, JR.,Joseph H. Murdler
申请号：
US15166266
公开号：
US20170055461A1
申请日:
2016.05.27
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A method is provided. In this method, a first tray positioned at a first end of a trough assembly at a selected tier is engaged. The first tray is then lifted and removed. A second tray is then engaged and moved vertically to the selected tiers. It is placed in the trough assembly at a second end. Other trays—which are positioned within the trough assembly between the first and second ends of the selected tier—are moved toward the first end of the trough assembly.
