Maintenance device, and method for introducing a maintenance tool into an elongate hollow member
AssigneeRosen Swiss AG
InventorHermann Rosen
Life of this patent
Estimating the term…
Abstract
Disclosed is a maintenance device for an elongate, tubular hollow member (2) designed to conduct a fluid. Said maintenance device comprises a sealing mechanism (4) which is to seal a working zone (9) relative to surroundings (30) of the hollow member (2) and can be moved in one direction along the hollow member (2). A side of the sealing mechanism (4) that faces the hollow member (2) forms an at least partially curved surface and can be moved in the longitudinal direction of the hollow member (2), especially in order to be placed in the sealing position. A method for servicing an elongate, tubular hollow member (2) is also claimed.
Claims42
Maintenance device for an elongated, tubular hollow body (2) which is configured for conducting a fluid, with a sealing device (4) which provides a sealing action for sealing a working region (9) from an environment (30) of the hollow body (2) and can be moved along the hollow body (2), wherein a side of the sealing device (4) that is to be turned toward the hollow body (2) forms an at least partly curved surface and can be moved along the hollow body (2), wherein the sealing device (4) comprises an adapter (3), wherein the adapter (3) is adapted to be attached to the hollow body (2) in a sealing manner, wherein the adapter (3) has a surface (7) facing away from the hollow body (2), wherein the adapter (3) forms the working region (9) allowing access to the hollow body (2), and wherein moveable parts of the sealing device (4) rest on the surface (7) of the adapter (3), wherein the moveable parts are adapted to move relative to the hollow body (2) in a first direction (A) and a second direction (B) extending transversely to the first direction (A) and are adapted to move across the working region (9) while maintaining said sealing action.
Maintenance device for an elongated, tubular hollow body (2) which is configured for conducting a fluid, with an adapter (3) as part of a sealing device (4), which adapter can be attached to the hollow body (2) in a sealing manner, has a surface (7) pointing away from the hollow body (2) and jointly forms a working region (9) allowing access to the hollow body (2), and with a sealing device (4) which is provided for sealing the working region (9) from an environment (30) of the hollow body (2), comprising a housing (19) which is provided to form at least one chamber (25, 28), which can be separated from the working region (9) by means of the sealing device (4), and which comprises a displaceable insert (27) which is configured for introducing a maintenance tool into the hollow body (2).
Method for maintaining an elongated, tubular hollow body (2) which is configured for conducting a fluid, the method comprising:
- providing a sealing device adapted to be attached to the hollow body (2), wherein the sealing device (4) comprises an adapter (3), wherein the adapter (3) has a surface (7) facing away from the hollow body (2), wherein the adapter (3) forms a working region (9) allowing access to the hollow body (2) for forming an opening in the hollow body (2), the working region (9) being sealed by a sealing action with the sealing device (4) from an environment of the hollow body (2), wherein the sealing device (4) has moveable parts resting on the surface (7) of the adapter (3) and adapted to move relative to the hollow body (2) in a first direction (A) and a second direction (B) extending transversely to the first direction (A);
- attaching the adapter (3) to the hollow body (2) in a sealing manner, accessing the working region (9) by displacing at least one of the moveable parts that is a curved part (11) along the hollow body (2) across the working region (9) while maintaining said sealing action.
Dependencies are inferred from the claim text.