Universal tubular connection having a variable metal-to-metal se

Details Universal tubular connection having a variable metal-to-metal se Universal tubular connection having a variable metal-to-metal se

1987-12-28

1989-04-04

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277236, 2853344, F16J 1508, F16L 1500

Patent

active

048179620

ABSTRACT:
The same size and weight of tubular products, but in different grades of material, are made for universal connection but with seal areas that differ appropriately for adequate sealing without overstressing the connection members for the pressures encountered where each tubular length is put in service. The angle of the conically tapered seal on all box members is made the same for all grades of the products. The pin member of medium grade is made with an equal length seal area and adjacent contracting area on its forward end. The pin member of lower grade is made with a shorter length seal area than its adjacent contacting area, thereby also placing the seal area further from the pin member distal end. This stiffens the pin member. The pin member of higher grade is made with a longer length seal area than its adjacent contacting area.

REFERENCES:
patent: Re6067 (1874-09-01), Lighthall
patent: 2893759 (1959-07-01), Blose
patent: 2992019 (1961-07-01), MacArthur
patent: 3007721 (1961-11-01), Schmohl et al.
patent: 3224799 (1965-12-01), Blose et al.
patent: 3353850 (1967-11-01), Butz et al.
patent: 3468566 (1969-09-01), Nietzel
patent: 3567258 (1971-03-01), Scaramucci
patent: 4349203 (1982-09-01), Schulke
patent: 4623173 (1986-11-01), Handa et al.
Machine Data Handbook, 3rd Edition, vol. 2, Machinability Data Center, copyright 1980, pp. 18-3 through 18-19.

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