NO932968L - DRILL CROWN WITH IMPROVED CUTTING PATTERN - Google Patents
DRILL CROWN WITH IMPROVED CUTTING PATTERNInfo
- Publication number
- NO932968L NO932968L NO93932968A NO932968A NO932968L NO 932968 L NO932968 L NO 932968L NO 93932968 A NO93932968 A NO 93932968A NO 932968 A NO932968 A NO 932968A NO 932968 L NO932968 L NO 932968L
- Authority
- NO
- Norway
- Prior art keywords
- cutting pattern
- improved cutting
- drill bit
- drill crown
- cutting elements
- Prior art date
Links
Abstract
En borkrone (29) med faste skjære-elementer er forsynt med primære skjære-elementer (24) som er radialt adskilt fra hverandre over borkronens frontflate (25). Under boring bevirker spalten mellom skjære-elementene at det dannes en rygg (37) i bunnen av brannen, og toppen av ryggen fjernes far den når borkronens frontflate. Ved en utførelse av oppfinnel- sen består innretningen for å fjerne toppen i å anvende sidene av bæreorganene for de primære skjære- elementer.A fixed cutting element drill bit (29) is provided with primary cutting elements (24) radially spaced apart from each other over the front face (25) of the drill bit. During drilling, the gap between the cutting elements causes a ridge (37) to form at the bottom of the fire and the top of the ridge is removed if it reaches the front surface of the drill bit. In one embodiment of the invention, the device for removing the top consists of using the sides of the carriers for the primary cutting elements.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/815,289 US5265685A (en) | 1991-12-30 | 1991-12-30 | Drill bit with improved insert cutter pattern |
PCT/US1992/011140 WO1993013290A1 (en) | 1991-12-30 | 1992-12-21 | Drill bit with improved insert cutter pattern |
Publications (2)
Publication Number | Publication Date |
---|---|
NO932968D0 NO932968D0 (en) | 1993-08-20 |
NO932968L true NO932968L (en) | 1993-08-20 |
Family
ID=26785253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO93932968A NO932968L (en) | 1991-12-30 | 1993-08-20 | DRILL CROWN WITH IMPROVED CUTTING PATTERN |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO932968L (en) |
-
1993
- 1993-08-20 NO NO93932968A patent/NO932968L/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO932968D0 (en) | 1993-08-20 |
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