Gas-containing surface cover, arrangement, and use
AssigneeBaden-Württemberg Stiftung gGmbH
InventorThomas Schimmel
Life of this patent
Estimating the term…
Abstract
The present invention relates to a surface cover for a body which can be brought into contact with a liquid, comprising: a layer which at least partly contains gas and which is designed and arranged such that at least some sections of a layer face facing the liquid contacts the liquid; a gas-permeable layer which is arranged on the gas-containing layer on a face that faces the body and is opposite the face facing the liquid or which is integrally formed with the gas-containing layer; and a gas-supplying device which is connected to the gas-permeable layer such that gas can flow from the gas-supplying device to the gas-containing layer through the gas-permeable layer. The invention also relates to an arrangement and a use.
Claims20
A watercraft comprising:
- a wall which is immersed, at least regionally, in water when the watercraft is in an operating position, and an at least partially gas-retaining layer arranged on a side of the wall facing toward the water, the gas-retaining layer having on a water-facing side protruding elements whose surfaces are hydrophobic, at least regionally, wherein the protruding elements have a central surface region which is hydrophilic and which is surrounded by a hydrophobic surface region of the protruding elements;
- and either further comprising:
- a gas-permeable ply which is arranged on a wall-facing side, situated opposite the water-facing side, between the gas-retaining layer and the wall;
- and
- a gas feed device which is connected to the gas-permeable ply such that gas can flow from the gas feed device to the gas-retaining layer through the gas-permeable ply;
- or further comprising:
- at least one gas discharge device which has a gas discharge opening at the water-facing side of the gas-retaining layer;
- and
- a gas feed device which is connected to the gas discharge device, wherein gas provided by the gas feed device can flow out of the gas discharge device and can be at least partially received by the gas-retaining layer.
A liquid vessel comprising:
- a vessel wall which can be wetted, at least regionally, with a liquid, and an at least partially gas-retaining layer arranged on a side of the vessel wall facing toward the liquid, the gas-retaining layer having on a liquid-facing side protruding elements whose surfaces are hydrophobic at least regionally, wherein the protruding elements have a central surface region which is hydrophilic and which is surrounded by a hydrophobic surface region of the protruding elements;
- and either
- further comprising:
- a gas-permeable ply which is arranged on a wall-facing side, situated opposite the liquid-facing side, between the gas-retaining layer and the vessel wall;
- and
- a gas feed device which is connected to the gas-permeable ply such that gas can flow from the gas feed device to the gas-retaining layer through the gas-permeable ply,
- or further comprising:
- at least one gas discharge device which has a gas discharge opening at the liquid-facing side of the gas-retaining layer;
- and
- a gas feed device which is connected to the gas discharge device, wherein gas provided by the gas feed device can flow out of the gas discharge device and can be at least partially received by the gas-retaining layer.
A surface covering for a body that can be placed in contact with a liquid, the surface covering comprising:
- an at least partially gas-retaining layer which is designed and arranged so as to make contact at least regionally by way of a liquid-facing side with the liquid, the gas-retaining layer having on the liquid-facing side protruding elements whose surfaces are hydrophobic at least regionally, wherein the protruding elements have a central surface region which is hydrophilic and which is surrounded by a hydrophobic surface region of the protruding elements;
- and either further comprising:
- a gas-permeable ply which is arranged on a body-facing side, situated opposite the liquid-facing side, on the gas-retaining layer or which is formed integrally with the gas-retaining layer;
- and
- a gas feed device which is connected to the gas-permeable ply such that gas can flow from the gas feed device to the gas-retaining layer through the gas-permeable ply;
- or further comprising:
- at least one gas discharge device which has a gas discharge opening at the liquid-facing side of the gas-retaining layer;
- and
- a gas feed device which is connected to the gas discharge device, wherein gas is provided by the gas feed device can flow out of the gas discharge device and can be at least partially received by the gas-retaining layer.
Dependencies are inferred from the claim text.