DE8633091U1 - - Google Patents

Info

Publication number
DE8633091U1
DE8633091U1 DE8633091U DE8633091U DE8633091U1 DE 8633091 U1 DE8633091 U1 DE 8633091U1 DE 8633091 U DE8633091 U DE 8633091U DE 8633091 U DE8633091 U DE 8633091U DE 8633091 U1 DE8633091 U1 DE 8633091U1
Authority
DE
Germany
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.)
Expired
Application number
DE8633091U
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FA HERBERT HAPPE 5600 WUPPERTAL DE
Original Assignee
FA HERBERT HAPPE 5600 WUPPERTAL DE
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 FA HERBERT HAPPE 5600 WUPPERTAL DE filed Critical FA HERBERT HAPPE 5600 WUPPERTAL DE
Priority to DE8633091U priority Critical patent/DE8633091U1/de
Publication of DE8633091U1 publication Critical patent/DE8633091U1/de
Priority to DE8715431U priority patent/DE8715431U1/de
Expired legal-status Critical Current

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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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 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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
DE8633091U 1986-12-10 1986-12-10 Expired DE8633091U1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8633091U DE8633091U1 (de) 1986-12-10 1986-12-10
DE8715431U DE8715431U1 (de) 1986-12-10 1987-11-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8633091U DE8633091U1 (de) 1986-12-10 1986-12-10

Publications (1)

Publication Number Publication Date
DE8633091U1 true DE8633091U1 (de) 1987-03-12

Family

ID=6801022

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8633091U Expired DE8633091U1 (de) 1986-12-10 1986-12-10

Country Status (1)

Country Link
DE (1) DE8633091U1 (de)

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