Государственное высшее учебное заведение "НАЦИОНАЛЬНЫЙ ГОРНЫЙ УНИВЕРСИТЕТ"
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Priority to UAU201109632UpriorityCriticalpatent/UA68319U/en
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A drill head in which the rock cutting elements are arranged as chains and pairs of outer and inner discs fixed in the legs with possibility of rotation and connected, respectively, by means of toothed chains as main breaking tools of the head into a single kinematic system.
UAU201109632U2011-08-022011-08-02Drill head
UA68319U
(en)
Cutting elements for earth-boring tools,earth-boring tools including such cutting elements ,and methods of forming such cutting elements for earth-boring tools
Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming cutting elements for earth-boring tools