KR860003852U - Ball tip of drilling hammer bit - Google Patents

Ball tip of drilling hammer bit

Info

Publication number
KR860003852U
KR860003852U KR2019840009569U KR840009569U KR860003852U KR 860003852 U KR860003852 U KR 860003852U KR 2019840009569 U KR2019840009569 U KR 2019840009569U KR 840009569 U KR840009569 U KR 840009569U KR 860003852 U KR860003852 U KR 860003852U
Authority
KR
South Korea
Prior art keywords
hammer bit
ball tip
drilling hammer
drilling
ball
Prior art date
Application number
KR2019840009569U
Other languages
Korean (ko)
Other versions
KR880004072Y1 (en
Inventor
김정환
Original Assignee
국제다이아몬드공업 주식회사
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 국제다이아몬드공업 주식회사 filed Critical 국제다이아몬드공업 주식회사
Priority to KR2019840009569U priority Critical patent/KR880004072Y1/en
Publication of KR860003852U publication Critical patent/KR860003852U/en
Application granted granted Critical
Publication of KR880004072Y1 publication Critical patent/KR880004072Y1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
KR2019840009569U 1984-09-28 1984-09-28 Ball tip of hammer bit for excavator KR880004072Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019840009569U KR880004072Y1 (en) 1984-09-28 1984-09-28 Ball tip of hammer bit for excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019840009569U KR880004072Y1 (en) 1984-09-28 1984-09-28 Ball tip of hammer bit for excavator

Publications (2)

Publication Number Publication Date
KR860003852U true KR860003852U (en) 1986-04-25
KR880004072Y1 KR880004072Y1 (en) 1988-11-18

Family

ID=19237338

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019840009569U KR880004072Y1 (en) 1984-09-28 1984-09-28 Ball tip of hammer bit for excavator

Country Status (1)

Country Link
KR (1) KR880004072Y1 (en)

Also Published As

Publication number Publication date
KR880004072Y1 (en) 1988-11-18

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19911115

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee