Patent ID: 9580196
Date: 2017-02-28
CPC Classifications: B65B,B65D

Claim:
1. A system for packing bituminous product, the system comprising: trays, with each tray having one or more bitumen-receiving cavities; a conveyor system for transportation of the trays, one at a time, to a plurality of workstations, wherein the plurality of workstations comprises: a workstation comprising a polymer extruder for extruding a polymer film for coating each of the trays, wherein the bitumen-receiving cavities of the trays are in an empty condition; a workstation comprising a bituminous film extruder for extruding a bituminous film for further coating each of the trays as the trays are being conveyed to the workstation comprising the bituminous film extruder from the workstation comprising the polymer extruder; a workstation comprising a bitumen dispenser for filling bitumen into the bitumen-receiving cavities of each of the trays as the trays are being conveyed to the workstation comprising the bitumen dispenser from the workstation comprising the bituminous film extruder; a workstation comprising a second bituminous film extruder for extruding a second bituminous film for covering each of the filled trays as the filled trays are being conveyed to the workstation comprising the second bituminous film extruder from the bitumen dispenser; a workstation comprising a second polymer film extruder for extruding a second polymer film for further covering each of the filled trays as the filled trays are being conveyed to the workstation comprising the second polymer film extruder from the workstation comprising the second bituminous film extruder, thereby forming a bitumen package in each tray; a workstation comprising a knife blade to cut joined polymer and bituminous films between two filled trays; a workstation comprising a chilled-water bath for hardening the bitumen packages contained in the filled trays; and a workstation comprising a conveyor return leg for tilting the filled trays upside down to release the hardened bitumen packages from the trays.