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US 2017/0304882 A1Published application
A seal for use in cryogenic applications
AssigneePrimetals Technologies Austria GmbH
InventorMichael Trevor CLARK
Life of this patent
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Abstract
A sealing device includes a flexible seal (10), a source of gas (15), a gas inlet (14) into the seal, and a gas outlet (17) from the seal 10, 17 whereby gas flows through the seal. A cryogenic source cools the seal and the gas from the cryogen helps seal the seal to the roll and to keep the seal flexible as the gas flows.
Claims12
A sealing device comprising:
- a flexible seal;
- a gas inlet leading gas from a source of gas to the seal, and a gas outlet for the gas from the seal, wherein the gas inlet and gas outlet are adapted for continuous flow of a heated gas from the gas inlet, through the seal to the gas outlet;
- the flexible seal comprises a first sealing member comprising a flexible gas chamber and a second sealing member comprising a solid, flexible body;
- and
- the flexible gas chamber being configured and operable to apply pressure to the solid body with a continuous flow of warm gas from the gas inlet to the gas outlet to press the seal against an object.
2 more elements
A method of sealing a chamber adjacent to a work roll of a rolling mill stand, during rolling, the method comprising:
- providing a seal located toward each lateral edge of the work roll;
- and
- supplying a continuous flow of heated gas warm enough to cause the seal to be flexible and through a flexible gas chamber which is in contact with the seal for causing the flexible gas chamber to apply pressure to the seal by using the continuous flow of warm gas through the flexible gas chamber from a gas inlet of the gas chamber through a gas outlet from the gas chamber.
Dependencies are inferred from the claim text.