Device for restoration of pressure retaining items subject to material degradation
AssigneePMC Engineering Solutions, Inc.
InventorsPaul Stephen Manzon, Nicholas John Koseski
Life of this patent
Estimating the term…
Abstract
A device for restoration by encapsulation of a breached, leaking, or degraded pressure retention item. The apparatus may include multiple features for reducing loads on the pressure retention item, including a filler or liner plate, filler material, and an angled attachment point between the apparatus and the pressure retention item. The apparatus may include inspection ports for viewing, pressure, or leak detection. The apparatus may include a guide track for improved welding to fasten the apparatus to the pressure retaining item. The apparatus may include an expansion joint or bellows, allowing lateral and/or axial movement of the device and/or the pressure retaining item.
Claims17
A device for encapsulating at least a portion of a pressure retaining item, comprising:
- a shell having an inner surface and an outer surface;
- a hub proximate to a perimeter of the shell that extends substantially perpendicular from the inner surface, wherein the hub has an edge configured to be integrally attached to the pressure retaining item and surround a portion of the pressure retaining item;
- wherein the hub is configured to be integrally attached by complete joint penetration (CJP) fusion welding to form a complete coalescence of metal of the hub and the pressure retaining item and form a cavity between the pressure retaining item and the device when integrally attached;
- and
- a filler plate attached to the inner surface of the device.
A device for encapsulating at least a portion of a pressure retaining item on one side, comprising:
- a shell having an inner surface, an outer surface and an opening;
- and
- a hub proximate to a perimeter of the shell that extends substantially perpendicular from the inner surface, wherein the hub has an edge configured to be disposed integral with the pressure retaining item and surround a portion of the pressure retaining item;
- wherein the hub is configured to be integrally attached by complete joint penetration (CJP) fusion welding to form a complete coalescence of metal of the hub and the pressure retaining item and form a cavity between the pressure retaining item and the device when integrally attached;
- and wherein the shell has at least one opening extending from the inner surface to the outer surface.
A device for encapsulating at least a portion of a pressure retaining item on one side comprising:
- a shell having an inner surface and an outer surface;
- and
- a raised hub disposed proximate to a perimeter of the shell that extends from the inner surface to an outer surface of the pressure retaining item at an angle of incidence, wherein the hub has an edge configured to be integral with the pressure retaining item and surrounds a portion of the pressure retaining item;
- wherein the hub is configured to be integrally attached by complete penetration fusion welding to form a complete coalescence of metal of the hub and the pressure retaining item and form a cavity between the pressure retaining item and the device when integrally attached;
- and wherein the angle of incidence of the hub is not substantially perpendicular to the surface of the pressure retaining item.
A device for encapsulating at least a portion of a pressure retaining item on one side, comprising:
- a shell having an inner surface and an outer surface;
- a hub proximate to a perimeter of the shell that extends substantially perpendicular from the inner surface, wherein the hub has an edge configured to be integrated with the pressure retaining item and surround a portion of the pressure retaining item, wherein the hub is configured to be integrally attached by complete penetration fusion welding to form a complete coalescence of metal of the hub and the pressure retaining item and form a cavity between the pressure retaining item and the device;
- and
- a guide track disposed on the outer surface proximate to the perimeter of the pressure maintenance shell and configured to receive one of:
- an automated welding device and a semi-automated welding device.
A device for encapsulating at least a portion of a pressure retaining item on one side comprising:
- a shell having an inner surface and an outer surface;
- and
- a hub disposed proximate to a perimeter of the shell that extends substantially perpendicular from the inner surface, wherein the hub has an edge configured to be integrated with the pressure retaining item and surround a portion of the pressure retaining item;
- wherein the hub is configured to be integrally attached by complete joint penetration (CJP) fusion welding to form a complete coalescence of metal of the hub and the pressure retaining item and form a cavity between the pressure retaining item, the shell, and the hub;
- and
- an injectable filler material disposed in the cavity;
- at least two openings in the shell extending between the inner surface and the outer surface;
- and
- at least two caps disposed on the at least two openings.
A device for encapsulating a portion of a pressure retaining item on one side comprising:
- a shell having an inner surface and an outer surface with a port between the inner surface and the outer surface;
- and
- a hub proximate to a perimeter of the shell that extends substantially perpendicular from the inner surface, wherein the hub has an edge configured to be integral with the pressure retaining item and surround the portion of the pressure retaining item;
- wherein the hub is configured to be integrally attached by complete joint penetration (CJP) fusion welding to form a complete coalescence of metal of the hub and the pressure retaining item and form a cavity between the pressure retaining item and the device;
- and
- a monitoring device disposed in the at least one port.
A device for encapsulating at least a portion of a pressure retaining item on one side, comprising:
- a shell having an inner surface and an outer surface;
- and
- a hub proximate to a perimeter of the shell that extends substantially perpendicular from the inner surface, wherein the hub has an edge configured to be integral with the pressure retaining item and surround the portion of the pressure retaining item;
- wherein the hub is configured to be integrally attached by complete joint penetration (CJP) fusion welding to form a complete coalescence of metal of the hub and the pressure retaining item and form a cavity between the pressure retaining item and the pressure maintenance device;
- and
- wherein at least a portion of the shell includes an expansion joint.
Dependencies are inferred from the claim text.