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2 042 502

(13)

(51)

IPC

(21) (22)

Application

4949041/28, 1991-06-25

(22)

Actual filing date

1991-06-25

(45)

Published

1995-08-27

(72)

Inventor

Peshkov L.P.Shestov A.G.Korneeva V.A.

(73)

Holder

Peshkov Leonid PetrovichShestov Anatolij GeorgievichKorneeva Valentina Alekseevna

MECHANICAL PIPE WRENCH Russian patent published in 1995 - IPC

Abstract RU 2042502 C1

FIELD: drilling operations. SUBSTANCE: drive 1 rotates gear 5. Jaws 3 come to contact with section 6 or 7 of template by means of rollers. Dies 4 bite pipe 8 due to certain inclination angle of rise of sections, further on they rotate together. EFFECT: enhanced reliability of joining of pipes. 3 dwg

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RU 2 042 502 C1

Authors

Peshkov L.P.

Shestov A.G.

Korneeva V.A.

Dates

1995-08-27—Published

1991-06-25—Filed