UA29719A - Roller cutter drill bit - Google Patents

Roller cutter drill bit

Info

Publication number
UA29719A
UA29719A UA97020575A UA97020575A UA29719A UA 29719 A UA29719 A UA 29719A UA 97020575 A UA97020575 A UA 97020575A UA 97020575 A UA97020575 A UA 97020575A UA 29719 A UA29719 A UA 29719A
Authority
UA
Ukraine
Prior art keywords
drill bit
cutter drill
roller cutter
roller
gaskets
Prior art date
Application number
UA97020575A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Ромуальд Донатович Мартулевич
Original Assignee
Ромуальд Донатович Мартулевич
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ромуальд Донатович Мартулевич filed Critical Ромуальд Донатович Мартулевич
Priority to UA97020575A priority Critical patent/UA29719A/en
Publication of UA29719A publication Critical patent/UA29719A/en

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

The invention relates to drill instrument, in particular to roller-cutter drill bits for drilling very hard and abrasive rocks and to bearing units with gaskets of those.
UA97020575A 1997-02-11 1997-02-11 Roller cutter drill bit UA29719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
UA97020575A UA29719A (en) 1997-02-11 1997-02-11 Roller cutter drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
UA97020575A UA29719A (en) 1997-02-11 1997-02-11 Roller cutter drill bit

Publications (1)

Publication Number Publication Date
UA29719A true UA29719A (en) 2000-11-15

Family

ID=74196183

Family Applications (1)

Application Number Title Priority Date Filing Date
UA97020575A UA29719A (en) 1997-02-11 1997-02-11 Roller cutter drill bit

Country Status (1)

Country Link
UA (1) UA29719A (en)

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