Tieback connector with two point interference fit

Details Tieback connector with two point interference fit Tieback connector with two point interference fit

1988-12-28

1990-02-27

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

Guide and support

285115, 2853344, 285370, F16L 5500

Patent

active

049039938

ABSTRACT:
A tieback connector for connecting a conductor to a subsea wellhead mandrel utilizes two points of interference fit. The tieback connector has a tubular body from which depends a downward opening funnel. The mandrel has an upper bearing surface and a lower bearing surface, spaced apart by a cylindrical wall section. The lower bearing surface protrudes outward and is a frusto-conical surface. The mandrel has upper and lower bearing surfaces that are dimensioned to frictionally engage the upper and lower bearing surfaces of the mandrel as the funnel makes the final seat on the mandrel.

REFERENCES:
patent: 198035 (1877-12-01), Matheson
patent: 1927656 (1933-09-01), Eaton et al.
patent: 2406478 (1946-08-01), Snyder
patent: 2574081 (1951-11-01), Abegg
patent: 2580818 (1952-01-01), Mundy et al.
patent: 4343495 (1982-08-01), Nobileau et al.
patent: 4408784 (1983-10-01), Reimert
patent: 4429904 (1984-02-01), Reimert
patent: 4609046 (1986-09-01), Schawann et al.
patent: 4659116 (1987-04-01), Cameron
patent: 4696493 (1987-09-01), Brammer

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