Method and apparatus for making a joint for steel tubes

Details Method and apparatus for making a joint for steel tubes Method and apparatus for making a joint for steel tubes

1985-03-22

1987-02-10

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

With testing or indicating

33199R, B23Q 1700, G01B 348, G01B 340

Patent

active

046414100

ABSTRACT:
The present invention concerns a new threaded joint for steel tubes, usable in particular in the petroleum industry, which contains a female element equipped with conical threads having an internal screw stop mating and a male element correspondingly threaded with a screw stop having a form corresponding to the female element. The male element stop and the female element stop are each manufactured by cold working using a tool capable of engaging in or on the threads of the corresponding element.

REFERENCES:
patent: 1535098 (1925-04-01), Buckingham
patent: 1792936 (1931-02-01), Skarl
patent: 2387814 (1945-10-01), Straw
patent: 2680301 (1954-06-01), Steczynski
patent: 3047960 (1962-08-01), Mittensberg et al.
patent: 4479306 (1984-10-01), Klemnetich

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