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IPC

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Application

97114362/13, 1997-08-21

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Actual filing date

1997-08-21

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Published

1999-04-27

(72)

Inventor

Strelkov N.G.Nagajtsev V.F.Nagajtsev P.V.Luk'Janova E.A.Udovichenko S.G.

(73)

Holder

Munitsipal'Noe PredprijatiePrivolzhskaja Malaja Nauchnaja Obshchestvennaja Firma Patentnykh Uslug I RabotNauchno-Proizvodstvennyj Kontsern

COCK-BOX HANDWHEEL Russian patent published in 1999 - IPC

Abstract RU 2129683 C1

FIELD: devices for locking liquids and viscous materials. SUBSTANCE: handwheel has hollow body with projection provided with polyhedral hole which is used for receiving the tail-piece of shut-off member. projection is reinforced with stiffening member for localization of fatigue cracks caused by mechanothermal loads. Stiffening member has section made in form of truncated cone with flexible lobes with curvilinear ends and knurls of surfaces. Upper base of cone has section in form of hole in projection. Lower base of cone extends to end surface of projection. Such construction of stiffening member redistributes direction and form of curves of stresses arising in handwheel used by operator. EFFECT: enhanced reliability. 3 dwg

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RU 2 129 683 C1

Authors

Strelkov N.G.

Nagajtsev V.F.

Nagajtsev P.V.

Luk'Janova E.A.

Udovichenko S.G.

Dates

1999-04-27—Published

1997-08-21—Filed

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