IT1219838B - Placchetta riportata su una punta di trapano per calcestruzzo con spigoli di taglio robusti e smussati - Google Patents

Placchetta riportata su una punta di trapano per calcestruzzo con spigoli di taglio robusti e smussati

Info

Publication number
IT1219838B
IT1219838B IT47603/88A IT4760388A IT1219838B IT 1219838 B IT1219838 B IT 1219838B IT 47603/88 A IT47603/88 A IT 47603/88A IT 4760388 A IT4760388 A IT 4760388A IT 1219838 B IT1219838 B IT 1219838B
Authority
IT
Italy
Prior art keywords
sturdy
drill
concrete
plate
cutting edges
Prior art date
Application number
IT47603/88A
Other languages
English (en)
Italian (it)
Other versions
IT8847603A0 (it
Inventor
Donald C Pennington Jr
Original Assignee
Vermont American Corp
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 Vermont American Corp filed Critical Vermont American Corp
Publication of IT8847603A0 publication Critical patent/IT8847603A0/it
Application granted granted Critical
Publication of IT1219838B publication Critical patent/IT1219838B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • 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
    • E21B10/58—Chisel-type inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/75—Stone, rock or concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/50—Drilling tools comprising cutting 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)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
IT47603/88A 1987-02-09 1988-02-04 Placchetta riportata su una punta di trapano per calcestruzzo con spigoli di taglio robusti e smussati IT1219838B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1242887A 1987-02-09 1987-02-09

Publications (2)

Publication Number Publication Date
IT8847603A0 IT8847603A0 (it) 1988-02-04
IT1219838B true IT1219838B (it) 1990-05-24

Family

ID=21754932

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47603/88A IT1219838B (it) 1987-02-09 1988-02-04 Placchetta riportata su una punta di trapano per calcestruzzo con spigoli di taglio robusti e smussati

Country Status (9)

Country Link
JP (1) JPS63239007A (enrdf_load_stackoverflow)
CN (1) CN1016949B (enrdf_load_stackoverflow)
BR (1) BR8800464A (enrdf_load_stackoverflow)
CA (1) CA1324013C (enrdf_load_stackoverflow)
CH (1) CH674335A5 (enrdf_load_stackoverflow)
DE (1) DE3803910A1 (enrdf_load_stackoverflow)
DK (1) DK61888A (enrdf_load_stackoverflow)
FR (1) FR2610553B1 (enrdf_load_stackoverflow)
IT (1) IT1219838B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW299385B (en) 1994-12-12 1997-03-01 Black & Decker Inc Cutting tools for drilling concrete, aggregate, masonry or the like materials
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
DE19720589A1 (de) * 1997-05-16 1998-11-19 Hilti Ag Bohrwerkzeug
GB0201197D0 (en) * 2002-01-19 2002-03-06 Armeg Ltd Tile cutting attachment
JP7380813B1 (ja) * 2022-11-29 2023-11-15 株式会社タンガロイ 穴あけ工具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE698003C (de) * 1938-06-29 1940-10-30 Spiralbohrer Werkzeug Und Masc Spiralbohrer fuer zaehharte Werkstoffe
DE2807197A1 (de) * 1978-02-20 1979-08-30 Heller Verwaltungsges Bohrkopf eines drehschlagbohrers
DE8215364U1 (de) * 1982-05-24 1982-10-14 Weissenfeld, Günther, 5630 Remscheid Spitzbohrwerkzeug
DE3544433C2 (de) * 1985-12-16 1995-12-14 Hilti Ag Gesteinsbohrer

Also Published As

Publication number Publication date
DE3803910A1 (de) 1988-08-18
IT8847603A0 (it) 1988-02-04
CN1016949B (zh) 1992-06-10
CA1324013C (en) 1993-11-09
JPS63239007A (ja) 1988-10-05
CH674335A5 (enrdf_load_stackoverflow) 1990-05-31
FR2610553B1 (fr) 1993-05-07
BR8800464A (pt) 1988-09-20
FR2610553A1 (fr) 1988-08-12
DK61888A (da) 1988-08-10
CN1032131A (zh) 1989-04-05
DK61888D0 (da) 1988-02-08

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