Steam generator tube repair method and assembly
Patent
·
OSTI ID:5337472
An assembly for plugging a defective tube is described comprising: stud means comprising a shaft having a threaded portion and a head portion, having a maximum diameter which exceeds the diameter of an intermediate shaft portion, the intermediate portion being disposed between the head portion and the threaded portion, the head portion defining a generally annular sealing surface; a driver wedge, a sealing sleeve, having an interior configuration complementary to the wedge exterior shape, the sleeve defining an exterior circumferentially extending sealing surface, an end of the sleeve being adapted for sealing engagement with the stud means head portion sealing surface; and a coupling assembly threadably engageable with the stud means threaded shaft portion so that upon mounting of the sleeve in the wedge and positioning of the stud means shaft in the wedge axial bore.
- Assignee:
- Combustion Engineering, Inc., Windsor, CT
- Patent Number(s):
- US 4723578
- OSTI ID:
- 5337472
- Country of Publication:
- United States
- Language:
- English
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