Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-02-21
1998-02-03
Cummings, Scott
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277227, 251 12, F16J 1502
Patent
active
057135819
ABSTRACT:
A high pressure seal material, such as for a lateral "T" seal of a shear ram blowout preventer, is disclosed wherein the seal material is preferably nitrile rubber and includes uniformly dispersed synthetic, non-cellulosic fibers in parallel alignment to resist rollover action occurring transverse to the applied compressive force by orienting the aligned fibers parallel to the axis of the applied force. The material is made in a milling process that aligns and maintains the alignment of the fibers. The milled sheet is then cut into appropriately shaped pieces. The pieces are rotated 90.degree., plied and cured to make the final material, which curing can be done in a suitable mold so that the final product is in its desired final shape.
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Hydril Engineering Bulletin 93008, Hydril 18 3/4--10,000 & 15,000 Shear Ram Lateral T-Seal, 21 Jul. 1993.
Breach William D.
Carlson Douglas W.
Simons Stephen P.
Cummings Scott
Hydril Company
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