Threaded pipe joint having improved seal ring entrapment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 31, 1990
Grant Date -
N/A
app pub date -
Mar 8, 1989
filing date -
Mar 8, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The box end of a threaded joint has an interior profile of an inwardly tapered threaded section, followed by a smooth sealing surface parallel to the longitudinal axis of the threaded joint, followed by an increased diameter seal ring groove, followed by an inwardly tapered smooth sealing surface. The pin end of the joint has an external torque shoulder, followed by an inwardly tapered threaded section, followed by a reduced diameter pipe dope reservoir, followed by an extrusion hump used to extrude a deformable seal ring used in the seal ring groove, followed by an inwardly tapered smooth sealing surface. When the threaded joint is fully made up, the entrapped seal ring has a primary metal-to-metal seal on its one side, formed by the mated smooth, tapered surfaces, and a secondary metal-to-metal seal formed by the extrusion hump and the surface above the seal ring groove.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully