초록 ▼

A pressure vessel capable of withstanding elevated external hydrostatic pressures is provided, comprising a tubular casing capable of withstanding hydrostatic pressures having an internal cavity and at least one end opening permitting entry into the cavity. An end closure seals the end opening and d

A pressure vessel capable of withstanding elevated external hydrostatic pressures is provided, comprising a tubular casing capable of withstanding hydrostatic pressures having an internal cavity and at least one end opening permitting entry into the cavity. An end closure seals the end opening and defines an external joint between the closure and the pressure vessel casing upon sealing of the opening. The end closure has an outer circumferential surface which is coextensive, that is flush, with the adjacent circumferential surface of the pressure vessel casing. At least a portion of the pressure vessel casing and closure are encapsulated by a seamless tubular sleeve of heat or air-shrinkable material which covers the entire extent of the external joint and is heat or air-shrunk about the vessel to seal the external joint. There is a layer of sealant in the form of an adhesive or a mastic, between the shrunk sleeve and the vessel.

대표청구항 ▼

A pressure vessel capable of withstanding elevated external hydrostatic pressures, said pressure vessel comprising a tubular casing capable of withstanding extreme hydrostatic pressures having an internal cavity and an opening in at least one end permitting access to said cavity, an end cap sealing

A pressure vessel capable of withstanding elevated external hydrostatic pressures, said pressure vessel comprising a tubular casing capable of withstanding extreme hydrostatic pressures having an internal cavity and an opening in at least one end permitting access to said cavity, an end cap sealing said end opening and defining an external joint between adjacent portions of said closure means and said pressure vessel casing upon sealing of said opening, said end cap having an outer circumferential surface which is flush with an adjacent circumferential surface of said pressure vessel casing, at least a portion of said pressure vessel casing and said end cap being encapsulated by a seamless tubular sleeve of heat or air-shrinkable material which covers the entire circumferential extent of said external joint and is heat or air-shrunk about said portions to seal said external joint.