DEFORMED BAR Russian patent published in 1995 - IPC

Abstract RU 2031207 C1

FIELD: building materials. SUBSTANCE: deformed bar includes longitudinal ribs and projections and depressions located over helical line. Surface of depressions has shape of concave catenoid formed by rotation round longitudinal axis of curve X = C·ch(y/c), where and y are current coordinates of curve, and C is profile constant. EFFECT: higher efficiency. 2 dwg

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RU 2 031 207 C1

Authors

Bondar' V.A.

Dates

1995-03-20—Published

1990-08-20—Filed