AT313220B - Rock drill bits for impact drills - Google Patents

Rock drill bits for impact drills

Info

Publication number
AT313220B
AT313220B AT819771A AT819771A AT313220B AT 313220 B AT313220 B AT 313220B AT 819771 A AT819771 A AT 819771A AT 819771 A AT819771 A AT 819771A AT 313220 B AT313220 B AT 313220B
Authority
AT
Austria
Prior art keywords
drill bits
rock drill
impact drills
drills
impact
Prior art date
Application number
AT819771A
Other languages
German (de)
Original Assignee
Reinholdt As H
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 Reinholdt As H filed Critical Reinholdt As H
Application granted granted Critical
Publication of AT313220B publication Critical patent/AT313220B/en

Links

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
    • E21B10/44—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
AT819771A 1970-11-25 1971-09-22 Rock drill bits for impact drills AT313220B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702057892 DE2057892A1 (en) 1970-11-25 1970-11-25 Rock drill bits for impact drills

Publications (1)

Publication Number Publication Date
AT313220B true AT313220B (en) 1974-02-11

Family

ID=5789029

Family Applications (1)

Application Number Title Priority Date Filing Date
AT819771A AT313220B (en) 1970-11-25 1971-09-22 Rock drill bits for impact drills

Country Status (7)

Country Link
AT (1) AT313220B (en)
CH (1) CH525753A (en)
DE (1) DE2057892A1 (en)
FR (1) FR2115828A5 (en)
GB (1) GB1362292A (en)
IT (1) IT941107B (en)
NL (1) NL7114401A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH626557A5 (en) * 1978-09-28 1981-11-30 Guex Philippe & Fils Sa
DE3014693A1 (en) * 1980-04-16 1981-10-22 Hilti AG, 9494 Schaan ROCK DRILL
DE4338667A1 (en) * 1993-11-12 1995-05-18 Hilti Ag Drilling tool
US5641028A (en) * 1995-08-10 1997-06-24 Black & Decker Inc. Drill bit with debris conveying flute
GB2393681A (en) 2002-10-03 2004-04-07 Black & Decker Inc Masonry drilling tool

Also Published As

Publication number Publication date
DE2057892A1 (en) 1972-06-08
FR2115828A5 (en) 1972-07-07
NL7114401A (en) 1972-05-29
IT941107B (en) 1973-03-01
CH525753A (en) 1972-07-31
GB1362292A (en) 1974-08-07

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee