FR2042136A5 - - Google Patents

Info

Publication number
FR2042136A5
FR2042136A5 FR7009897A FR7009897A FR2042136A5 FR 2042136 A5 FR2042136 A5 FR 2042136A5 FR 7009897 A FR7009897 A FR 7009897A FR 7009897 A FR7009897 A FR 7009897A FR 2042136 A5 FR2042136 A5 FR 2042136A5
Authority
FR
France
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
FR7009897A
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.)
Hilti AG
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
Application granted granted Critical
Publication of FR2042136A5 publication Critical patent/FR2042136A5/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21B10/44—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 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
FR7009897A 1969-04-28 1970-03-19 Expired FR2042136A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691921677 DE1921677B2 (de) 1969-04-28 1969-04-28 Drehschlag-wendelbohrer

Publications (1)

Publication Number Publication Date
FR2042136A5 true FR2042136A5 (fr) 1971-02-05

Family

ID=5732675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7009897A Expired FR2042136A5 (fr) 1969-04-28 1970-03-19

Country Status (6)

Country Link
US (1) US3674101A (fr)
AT (1) AT301424B (fr)
CH (1) CH508461A (fr)
DE (1) DE1921677B2 (fr)
FR (1) FR2042136A5 (fr)
GB (1) GB1270347A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143723A (en) * 1977-10-04 1979-03-13 Schmotzer Norman H Carbide tipped drill bit for boring holes in concrete and steel
US4503920A (en) * 1981-08-10 1985-03-12 Burke Clement Masonry bit
DE3538191C2 (de) * 1985-10-26 1996-09-19 Hilti Ag Gesteinsbohrer
DE3540355C2 (de) * 1985-11-14 1996-01-11 Duss Maschf Bohrer zum drehschlagenden Bohren
US5288183A (en) * 1986-08-18 1994-02-22 Black & Decker Inc. Self-centering drill bit with pilot tip
GB8624430D0 (en) * 1986-10-11 1986-11-12 Waddell G Piloted drill bit
DE3742661A1 (de) * 1987-12-16 1989-07-13 Hawera Probst Kg Hartmetall Gesteinsbohrer
US5011342A (en) * 1988-03-14 1991-04-30 501 Greenfield Industries, Inc. Twist drill
DE3825107C2 (de) * 1988-07-23 1996-07-11 Hilti Ag Gesteinsbohrer mit Schneidplatte
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
GB2303810A (en) * 1995-07-29 1997-03-05 Black & Decker Inc Masonry drill bit
US5641028A (en) * 1995-08-10 1997-06-24 Black & Decker Inc. Drill bit with debris conveying flute
GB2318072A (en) * 1996-09-21 1998-04-15 Plansee Tizit Gmbh Masonry bit
US5967712A (en) * 1998-11-03 1999-10-19 Kennametal Inc. Cutting tool for machining bores in materials having spring-back
DE29902665U1 (de) * 1999-02-15 1999-04-29 Drebo Werkzeugfab Gmbh Steinbohrer
DE10024433A1 (de) 2000-05-19 2001-11-29 Hawera Probst Gmbh Gesteinsbohrer
DE10351183A1 (de) * 2003-11-03 2005-06-02 Illinois Tool Works Inc., Glenview Gesteinsbohrer
US7237986B2 (en) 2004-08-09 2007-07-03 Black & Decker Inc. High speed metal drill bit
DE102007000848A1 (de) * 2007-10-11 2009-04-23 Hilti Aktiengesellschaft Selbstbohrschraube
US10507534B2 (en) 2016-03-17 2019-12-17 O-Tags, Inc. Systems, methods, and apparatus for reliably installing survey tags

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1007037A (en) * 1911-02-25 1911-10-24 Allan J Macdonald Drill.
DE584358C (de) * 1932-10-19 1933-09-18 Siemens Schuckertwerke Akt Ges Gesteinsdrehbohrer
US2230645A (en) * 1938-02-01 1941-02-04 Western Electric Co Drill
US2646701A (en) * 1949-12-27 1953-07-28 Peter A Letien Stepped edge cutting tool
US2673714A (en) * 1950-08-05 1954-03-30 John M Hargrave Rock or masonry drill
US2879036A (en) * 1956-06-25 1959-03-24 Philip T Wheeler Masonry drill
US3447616A (en) * 1966-12-29 1969-06-03 Zigmund E Granat Drills
US3460409A (en) * 1967-05-10 1969-08-12 Allied Machine & Eng Corp Chip breaker for spade drill

Also Published As

Publication number Publication date
US3674101A (en) 1972-07-04
CH508461A (de) 1971-06-15
DE1921677B2 (de) 1977-09-29
DE1921677A1 (de) 1970-11-05
AT301424B (de) 1972-09-11
GB1270347A (en) 1972-04-12

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Legal Events

Date Code Title Description
ST Notification of lapse