US 11,731,149 B2 · Device for applying a viscous substance

Abstract

The invention relates to a device for applying a viscous substance, in particular for cosmetic, writing, painting, drawing and/or marking purposes, having a tank for the substance, an applicator and a conveyor designed to convey the substance from the tank to the applicator. According to the invention, the conveyor has a cylinder, a first and a second closing device, which are both arranged in the cylinder in an axially displaceable manner, a pump tappet for axially displacing the closing devices, a first connecting channel between the cylinder and the tank and a second connecting channel between the cylinder and the applicator, the first closing device opens or closes the first connecting channel depending on its position relative to the cylinder, and the second closing device is adjustable relative to the pump tappet, opens or closes the second connecting channel depending on the position relative to the pump tappet and, together with the cylinder, forms a pump in which it serves as a piston.

Claims20

Dependent claims

A device for applying a viscous substance, comprising

a tank configured to store the viscous substance;
an applicator;
and
a conveyor configured to convey the viscous substance from the tank to the applicator,
the conveyor including
a cylinder,
a first closing device,
a second closing device, the first and second closing devices axially displaceable in the cylinder,
a pump tappet adjustable relative to the second closing device and configured to axially displace the first and second closing devices,
a first connecting channel disposed between the cylinder and the tank, and
a second connecting channel disposed between the cylinder and the applicator,
wherein the first closing device opens or closes the first connecting channel depending on a position relative to the cylinder, and
wherein the second closing device opens or closes the second connecting channel depending on a position relative to the pump tappet.

10 more elements

A conveying device for a viscous substance application device having a tank and an application apparatus, the conveying device comprising:

a cylinder;
a first closing device;
a second closing device, the first and second closing devices axially displaceable in the cylinder;
a pump tappet adjustable relative to the second closing device and configured to axially displace the first and second closing devices;
a first connecting channel disposed between the cylinder and the tank;
and
a second connecting channel disposed between the cylinder and the applicator,
wherein the first closing device opens or closes the first connecting channel depending on a position relative to the cylinder, and
wherein the second closing device opens or closes the second connecting channel depending on a position relative to the pump tappet.

6 more elements

Dependencies are inferred from the claim text.

Device for applying a viscous substance

Life of this patent

Device for applying a viscous substance

Life of this patent

Abstract

Claims20