29-04-2021 дата публикации
Номер: US20210121902A1
Принадлежит:
The invention relates to a dev ice for applying a viscous substance, in particular for the purposes of cosmetics, writing, painting, drawing, and/or marking, with a tank () for tire substance, an application apparatus (), and a conveying device (), which is configured such as to convey the substance out of the tank () to the application device. According to the invention, provision is made for the conveying device () to comprise a cylinder (), a piston () arranged such as to be axially displaceable in the cylinder, a pump plunger () for the axial displacement of the piston (), a first connection channel () between the cylinder () and the tank (), and a second connection channel () between the cylinder () and the application apparatus (), the piston () to be adjustable in relation to the pump plunger (), for the piston () to open or close the first connection channel () depending on the setting in relation to the cylinder (), and for the piston (), depending on the position in relation to the pump plunger (), to open or close the second connection channel (). 1. A device for applying a viscous substance , comprising:a tank configured to store substance,an application apparatus,a conveying device is configured to convey the substance out of the tank to the application apparatus, wherein a cylinder,', 'a piston axially displaceable in the cylinder,', 'a pump plunger for axial displacement of the piston,', 'a first connection channel between the cylinder and the tank, and', 'a second connection channel between the cylinder and the application apparatus,', 'wherein the piston is adjustable in relation to the pump plunger,', 'wherein the piston opens or closes the first connection channel depending on a position in relation to the cylinder, and', 'wherein the piston, depending on a position in relation to the pump plunger, opens or closes the second connection channel., 'the conveying device comprises'}2. The device according to claim 1 , wherein the piston is configured ...
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