KR860003852U - Ball tip of drilling hammer bit - Google Patents

Ball tip of drilling hammer bit

Info

Publication number: KR860003852U
Authority: KR; South Korea
Prior art keywords: hammer bit; ball tip; drilling hammer; drilling; ball
Prior art date: 1984-09-28
Legal status (The legal status 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 status listed.): Granted

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.)

1984-09-28

Filing date

1984-09-28

Publication date

1986-04-25

1984-09-28 Application filed by 국제다이아몬드공업 주식회사 filed Critical 국제다이아몬드공업 주식회사

1984-09-28 Priority to KR2019840009569U priority Critical patent/KR880004072Y1/en

1986-04-25 Publication of KR860003852U publication Critical patent/KR860003852U/en

1988-11-18 Application granted granted Critical

1988-11-18 Publication of KR880004072Y1 publication Critical patent/KR880004072Y1/en

Status Expired legal-status Critical Current

Classifications

- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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

Landscapes

Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Mining & Mineral Resources (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Environmental & Geological Engineering (AREA)
Fluid Mechanics (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Pens And Brushes (AREA)

KR2019840009569U 1984-09-28 1984-09-28 Ball tip of hammer bit for excavator Expired 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 Expired KR880004072Y1 (en)	1984-09-28	1984-09-28	Ball tip of hammer bit for excavator

Country Status (1)

Country	Link
KR (1)	KR880004072Y1 (en)

1984
- 1984-09-28 KR KR2019840009569U patent/KR880004072Y1/en not_active Expired

Also Published As

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

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Legal Events

Date	Code	Title	Description
1984-09-28	A201	Request for examination
1984-09-28	UA0108	Application for utility model registration	Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19840928
1984-09-28	UA0201	Request for examination	Patent event date: 19840928 Patent event code: UA02012R01D Comment text: Request for Examination of Application
1986-04-25	UG1501	Laying open of application
1988-11-18	UG1604	Publication of application	Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19881018
1989-02-14	E701	Decision to grant or registration of patent right
1989-02-14	UE0701	Decision of registration	Patent event date: 19890214 Comment text: Decision to Grant Registration Patent event code: UE07011S01D
1989-05-03	REGI	Registration of establishment
1989-05-03	UR0701	Registration of establishment	Patent event date: 19890503 Patent event code: UR07011E01D Comment text: Registration of Establishment
1989-05-03	UR1002	Payment of registration fee	Start annual number: 1 End annual number: 3 Payment date: 19890503
1991-11-15	FPAY	Annual fee payment	Payment date: 19911115 Year of fee payment: 7
1991-11-15	UR1001	Payment of annual fee	Payment date: 19911115 Start annual number: 4 End annual number: 7
1995-11-19	LAPS	Lapse due to unpaid annual fee
1995-11-19	UC1903	Unpaid annual fee	Termination date: 19961125 Termination category: Default of registration fee