Liquid hand cleaner foam dispensing as spray and liquid stream
AssigneeOP-Hygiene IP GmbH
InventorsHeiner Ophardt, Andrew Jones, Zhenchun Shi
Life of this patent
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Abstract
Operating a hand cleaner dispenser for dispensing a cleaning liquid from a reservoir onto a person's hands in a cycle of operation wherein, during a first time interval during the cycle dispensing the liquid onto the hand as a spray, and during a second time interval during the cycle dispensing the liquid onto the hand as a liquid stream.
Claims14
A method of operating a hand cleaner dispenser to dispense a cleaning liquid from a reservoir onto a person's hands in a cycle of operation comprising the steps of:
- providing a spray nozzle and a stream nozzle,
- providing a pressurized liquid,
- during a first time interval during the cycle directing the pressurized liquid to the spray nozzle thereby dispensing the liquid onto the hand as a spray;
- and
- during a second time interval during the cycle directing the pressurized liquid to the stream nozzle thereby dispensing the liquid onto the hand as a liquid stream,
- including directing the spray toward fingertips of the hand and directing the liquid stream toward a palm of the hand.
A method of operating a hand cleaner dispenser to dispense a cleaning liquid onto a person's hand in a cycle of operation comprising:
- providing a spray nozzle and a stream nozzle;
- during a first time interval during the cycle dispensing the liquid from the stream nozzle as a liquid stream by pressurizing the liquid and directing the pressurized liquid to the stream nozzle,
- during a second time interval during the cycle dispensing the liquid from the spray nozzle as a spray by pressurizing the liquid and directing the pressurized liquid to the spray nozzle;
- providing the spray nozzle at a first location and the stream nozzle at a second location spaced from the first location such that when the hand is located with a palm of the hand underneath the stream nozzle and directed upwardly toward the stream nozzle, the stream nozzle directs the liquid stream downwardly onto the palm and the spray nozzle is above the fingertips of the hand in a position to direct the spray onto the fingertips,
- during the cycle of operation maintaining the hand located in a position in which:
- (a) the palm of the hand is underneath the stream nozzle directed upwardly toward the stream nozzle located to receive the liquid stream dispensed from the stream nozzle on the palm and
- (b) the fingertips of the hand are below the spray nozzle located to receive the spray dispensing from spray nozzle on the fingertips.
Dependencies are inferred from the claim text.