F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/63
F16L 15/00 (2006.01)
Patent
CA 1280456
ALL METAL SEAL FOR PRESSURE SEALING ABSTRACT A sealing connection (10) is disclosed which incorporates a metal-to-metal seal. The pin (22) extends to an end or snout having an outer annular frusto-conical primary sealing surface (36) and an inner frusto-conical secondary sealing surface (38). The line of intersection between the cones on which primary and secondary sealing surfaces lie on the pin define a hypothetical male sealing circle (40) of predetermined diameter. The box (24) defines a sealing pocket (32). The sealing pocket also includes an outer annular frusto-conical primary sealing surface (44) and an inner frusto-conical secondary sealing surface (46). The line of intersection between the cones on which the sealing surfaces of the box lie defines a hypothetical female sealing circle (48) having a diameter slightly less than the male sealing circle (40). This insures that the primary sealing surface on the male pin contacts the primary sealing surface on the female box and deflects the male end inward to form an effective metal-to-metal seal between the primary sealing surfaces when the pin engages the pocket. The primary sealing surface of the male member forms an angle relative to the center line less than the angle between the primary sealing surface of the female member and center line.
516292
Dresser Industries Inc.
Macrae & Co.
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