Patent ID: 11896996
Assignee: THE BOEING COMPANY
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 18:
19. The method according to claim 1, wherein:
the step of selectively controlling the flow-bypass assembly to purge air from the extrudable substance before the extrudable substance enters the delivery tube comprises actuating a ball valve to position the ball valve at a selected first rotational orientation to communicatively couple a flow-bypass purging port of the flow-bypass assembly with a flow-bypass inlet port of the flow-bypass assembly, communicatively coupled with the cartridge;
the step of selectively controlling the flow-bypass assembly to deliver the extrudable substance from the flow-bypass assembly to the valve assembly via the delivery tube comprises actuating the ball valve to position the ball valve at a selected second rotational orientation to communicatively couple a flow-bypass dispensing port of the flow-bypass assembly with the flow-bypass inlet port of the flow-bypass assembly; and
the step of controlling flow of the extrudable substance from the valve assembly to the nozzle comprises actuating a linear actuator of the valve assembly, coupled to a valve body of the valve assembly, to move a valve of the valve assembly into one of an open position, in which the valve does not sealingly engage a valve seat of the valve body, or a closed position, in which the valve sealingly engages the valve seat.