Patent ID: 11969748
Assignee: NORDSON CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC B  F | IPC B  F

Claim 48:
49. A method of dispensing a liquid from a dispensing assembly, the method comprising:
introducing liquid to be dispensed into a liquid chamber, the liquid chamber including a movable valve stem configured to move between a first position, in which liquid is precluded from being discharged out of the liquid chamber, and a second position, in which liquid is permitted to be discharged from the liquid chamber;
introducing pressurized air into a first chamber via a control valve, when the control valve is in a first position, so as to cause the movable valve stem to move from the first position to the second position due to the pressurized air, wherein the pressurized air is introduced into a first channel configured to fluidly communicate with the control valve and with the first chamber;
ceasing introduction of the pressurized air into the first chamber; and
moving the pressurized air out of the dispensing assembly when the control valve is in a second position, wherein when the control valve is in the second position the pressurized air is moved from the first chamber to a second chamber separated from the first chamber, and the pressurized air is moved into a second channel configured to fluidly communicate with the control valve and the second chamber.