WEDGE SHAPED SHUTTER Russian patent published in 2002 - IPC

Abstract RU 2191941 C1

FIELD: fitting manufacture, namely reliable closing of pipelines. SUBSTANCE: shutter includes housing with sealing faces and discs arranged in housing. Discs are mounted on movable rod. Cylindrical boss is arranged between discs; said boss has spherical end surfaces. Boss forms together with wedge-shaped discs wedge having changing angle relative to rotation axis of movable rod in dependance upon motion of wedge-shaped discs in housing. EFFECT: enhanced manufacturability of shutter with improved capability for restoration. 2 dwg

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RU 2 191 941 C1

Authors

Moskalenko A.V.

Khitrov G.M.

Dates

2002-10-27—Published

2001-05-04—Filed