SELF-ALIGNING SCRAPER CUP Russian patent published in 1994 - IPC

Abstract RU 2020342 C1

FIELD: sealing of drill pump rod coming out of oil bath. SUBSTANCE: horizontal web with end slots is connected with vertical wall merging into flexible sponge along inside diameter. Internal hole of vertical wall is cylindrical. Scraper cup is ┴-shaped. Thickness of vertical wall is equal to that of horizontal web. EFFECT: improved design. 1 dwg

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RU 2 020 342 C1

Authors

Goronovich L.N.

Рrishchepa S.А.

Рerevalova L.Р.

Dates

1994-09-30—Published

1992-06-15—Filed