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2 020 309

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C1

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IPC

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Application

5040479/28, 1992-04-29

(22)

Actual filing date

1992-04-29

(45)

Published

1994-09-30

(72)

Inventor

Аlikin V.N.Vakulevich V.D.Кuz'Mitskij G.Еh.Sechin S.N.Тsygankov Ju.N.Jumadilov V.N.

(73)

Holder

Рermskij Zavod Im.S.М.Кirova

POLYMER RETURN SPRING FOR STAMPING PRESS Russian patent published in 1994 - IPC

Abstract RU 2020309 C1

FIELD: domestic and foreign press equipment as cylindrical return springs made of flexible polymer materials. SUBSTANCE: polymer return spring of stamping press with central passage has circular grooves on outer cylindrical surface of spring at end zones with depth of H = (0.02 - 0.1)D. Maximum depth of grooves is located at distance L = (0.04 - 0.25)D from the ends, where D is diameter of spring. EFFECT: enhanced reliability. 3 dwg

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RU 2 020 309 C1

Authors

Аlikin V.N.

Vakulevich V.D.

Кuz'Mitskij G.Еh.

Sechin S.N.

Тsygankov Ju.N.

Jumadilov V.N.

Dates

1994-09-30—Published

1992-04-29—Filed

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