CYLINDRICAL-PSEUODOSPHERICAL HAMMER Russian patent published in 2013 - IPC B25D17/02 E21B1/38 

Abstract RU 2486049 C1

FIELD: process engineering.

SUBSTANCE: invention relates to hammers of percussion-type machines. Proposed hammer consists of interconnected cylinder and coaxial rod. Rod side surface makes the surface of permanent negative curvature surface formed by rotation of equitangential curve about its asymptote.

EFFECT: better transfer of impact pulse.

1 dwg

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RU 2 486 049 C1

Authors

Dvornikov Leonid Trofimovich

Zhukov Ivan Alekseevich

Dates

2013-06-27Published

2012-01-11Filed