DK125989A - STENBORSKRONE - Google Patents

STENBORSKRONE

Info

Publication number
DK125989A
DK125989A DK125989A DK125989A DK125989A DK 125989 A DK125989 A DK 125989A DK 125989 A DK125989 A DK 125989A DK 125989 A DK125989 A DK 125989A DK 125989 A DK125989 A DK 125989A
Authority
DK
Denmark
Prior art keywords
core bit
conical area
adjoining
area
conical
Prior art date
Application number
DK125989A
Other languages
Danish (da)
Other versions
DK125989D0 (en
Inventor
Josef Obermeier
Original Assignee
Hilti Ag
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 Hilti Ag filed Critical Hilti Ag
Publication of DK125989D0 publication Critical patent/DK125989D0/en
Publication of DK125989A publication Critical patent/DK125989A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion

Abstract

The rock drilling tool has a conical area (3) adjoining the shank (1) in the feed direction and a cylindrical area (4) adjoining the conical area (3) in the same direction. The conical area (3) is provided with passage openings (6) which serve to pass the drillings from the inside through to the outside of the core bit. In addition, the core bit has pin-shaped cutting bodies (9) as well as a centre drill (8) projecting axially beyond the core bit. <IMAGE>
DK125989A 1988-03-21 1989-03-15 STENBORSKRONE DK125989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3809428A DE3809428A1 (en) 1988-03-21 1988-03-21 STONE DRILL BIT

Publications (2)

Publication Number Publication Date
DK125989D0 DK125989D0 (en) 1989-03-15
DK125989A true DK125989A (en) 1989-09-22

Family

ID=6350274

Family Applications (1)

Application Number Title Priority Date Filing Date
DK125989A DK125989A (en) 1988-03-21 1989-03-15 STENBORSKRONE

Country Status (5)

Country Link
EP (1) EP0334806B1 (en)
JP (1) JPH01284690A (en)
AT (1) ATE95888T1 (en)
DE (2) DE3809428A1 (en)
DK (1) DK125989A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279607A (en) * 1991-05-30 1994-01-18 The State University Of New York Telemetry capsule and process
DE4236553A1 (en) * 1992-10-29 1994-05-05 Hawera Probst Kg Hartmetall Rock drill
DE4301191A1 (en) * 1993-01-19 1994-07-21 Hawera Probst Kg Hartmetall Rock drilling tool
CN102134850A (en) * 2011-01-08 2011-07-27 洪子云 Soil-sucking hole-forming bit of diamond drill
DE102011090063A1 (en) * 2011-10-13 2013-04-18 Robert Bosch Gmbh Hammer hollow
CN103383319A (en) * 2012-05-03 2013-11-06 中国石油化工股份有限公司 Sealed shape-retaining coring fresh-keeping processing mechanism for rock core, and fresh-keeping processing method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334453A (en) * 1942-04-30 1943-11-16 Peter J Swofford Speed rock bit
DE2602238A1 (en) * 1976-01-22 1977-08-04 Bosch Gmbh Robert DRILL BIT
DE2807198A1 (en) * 1978-02-20 1979-08-30 Heller Verwaltungsges Cup-shaped boring tool mfr. - in which cutters are welded onto rim of cup and end of central drill
DE2856205A1 (en) * 1978-12-27 1980-07-10 Hilti Ag Rock drill head assembly - has protruding steel insets in ring segments with axial grooves and central recess
DE2913501A1 (en) * 1979-04-04 1980-10-16 Bosch Gmbh Robert Trepanning drill bit assembly - has passage to flushing seat from end face between cutters through shank
CH640304A5 (en) * 1979-06-13 1983-12-30 Inst Gornogo Dela Sibirskogo O DRILLING TOOL FOR DRILLING HOLES, ESPECIALLY FOR A SELF-DRIVING IMPACT MACHINE.
AT360734B (en) * 1979-08-17 1981-01-26 Swarovski Tyrolit Schleif HOLLOW DRILL
DE3049135A1 (en) * 1980-12-24 1982-07-15 Hawera Probst Gmbh + Co, 7980 Ravensburg DRILLS, ESPECIALLY DRILLING DRILLS
DE3515735C1 (en) * 1985-05-02 1987-01-15 Jaroslav Dvorak Boring head for a percussion boring device
DE3619334A1 (en) * 1986-06-09 1987-12-10 Erich Wezel Hollow drill bit crown

Also Published As

Publication number Publication date
EP0334806A1 (en) 1989-09-27
DK125989D0 (en) 1989-03-15
DE3809428A1 (en) 1989-10-12
JPH01284690A (en) 1989-11-15
EP0334806B1 (en) 1993-10-13
ATE95888T1 (en) 1993-10-15
DE58905867D1 (en) 1993-11-18

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment