| 摘要 |
<p>A plug retainer (10) for a tube plug (16) comprises a locking cup (12) and cap screw (14) that capture a head and inboard end of the plug. The locking cup (12) is threadably engaged in an open end (26) of the tube plug (16). A shank (52) of the cap screw (14) extends through a bore (36) in the locking cup (12) and is threadably engaged with a mandrel (20) in the tube plug (16). Compression rings (46, 48) on the locking cup (12) and cap screw (14) seal the locking cup (12) to the tube plug (16) and the cap screw (14) to the locking cup (12) to prevent leakage. The locking cup (12) is crimped on the cap screw (14) by the use of flutes (58) on a head (50) of the cap screw (14).</p> |
