Flowline clamp connector

Details Flowline clamp connector Flowline clamp connector

2006-05-01

2009-06-23

Dunwoody, Aaron M (Department: 3679)

Pipe joints or couplings

Packed

Flanged pipe

C285S917000, C285S373000

Reexamination Certificate

active

07549681

ABSTRACT:
A flowline connection assembly connects first and second tubular members to each other. Each tubular member has an external flange on its end. A recess is formed in the bore at the end of each of the tubular members. A seal ring extends into each of the conical recesses. A clamp with two halves, each with cam surfaces that engage the flanges and pull the tubular members axially toward each other. Bolts extend from one clamp half into the other. A retainer ring on each bolt retains the bolts with one of the clamp halves.

REFERENCES:
patent: 2766999 (1956-10-01), Watts et al.
patent: 3216746 (1965-11-01), Watts
patent: 3403931 (1968-10-01), Crain et al.
patent: 3554581 (1971-01-01), Mason et al.
patent: 3680188 (1972-08-01), Mason et al.
patent: 4218080 (1980-08-01), Kendrick
patent: 6290237 (2001-09-01), Graupner
patent: 7401819 (2008-07-01), Gibb et al.
Two-pages of Grayloc Products, Houston, Texas 77252 showing Grayloc Connectors in Extreme Service.
One page showing 4″ Halliburton Big Inch Clamp Connection.

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