DE3562725D1 - Trepaning cutter - Google Patents

Trepaning cutter

Info

Publication number
DE3562725D1
DE3562725D1 DE8585810026T DE3562725T DE3562725D1 DE 3562725 D1 DE3562725 D1 DE 3562725D1 DE 8585810026 T DE8585810026 T DE 8585810026T DE 3562725 T DE3562725 T DE 3562725T DE 3562725 D1 DE3562725 D1 DE 3562725D1
Authority
DE
Germany
Prior art keywords
drilling
support segments
segments
circumference
supporting body
Prior art date
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
DE8585810026T
Other languages
German (de)
Inventor
Karl-Heinz Ing Gartner
Franz Hoyss
Heinrich Pauli
Dieter Dipl Ing Scholz
Horst-Detlef Ing Gassmann
Ernst Wohlwend
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6229642&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3562725(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hilti AG filed Critical Hilti AG
Priority to DE8585810026T priority Critical patent/DE3562725D1/en
Application granted granted Critical
Publication of DE3562725D1 publication Critical patent/DE3562725D1/en
Expired legal-status Critical Current

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
    • E21B10/46—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

Abstract

1. A hollow drill bit comprising a metallic hollow cylindrical supporting body (2) having an open end in the direction of drilling with positively secured equally shaped support segments (5, 11, 21, 31) spaced apart from each other around the circumference in which cutting teeth of diamond grain are embeded where the support segments protrude beyond the end face of the supporting body (2) in the direction of drilling, characterized in that the end section of the supporting segments (5, 11, 21, 31) at the drilling end tapers over at least a part of its length in the direction of drilling and the free end face forms a line (8, 13, 23, 33) running in the direction of the circumference over at least a part of the tapered end section of the support segments.
DE8585810026T 1984-03-05 1985-01-25 Trepaning cutter Expired DE3562725D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8585810026T DE3562725D1 (en) 1984-03-05 1985-01-25 Trepaning cutter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843408092 DE3408092A1 (en) 1984-03-05 1984-03-05 HOLLOW DRILL
DE8585810026T DE3562725D1 (en) 1984-03-05 1985-01-25 Trepaning cutter

Publications (1)

Publication Number Publication Date
DE3562725D1 true DE3562725D1 (en) 1988-06-23

Family

ID=6229642

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19843408092 Withdrawn DE3408092A1 (en) 1984-03-05 1984-03-05 HOLLOW DRILL
DE8585810026T Expired DE3562725D1 (en) 1984-03-05 1985-01-25 Trepaning cutter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19843408092 Withdrawn DE3408092A1 (en) 1984-03-05 1984-03-05 HOLLOW DRILL

Country Status (3)

Country Link
EP (1) EP0156762B1 (en)
AT (1) ATE34329T1 (en)
DE (2) DE3408092A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533929A1 (en) * 1985-05-07 1986-11-13 Geißler & Kuper GmbH Diamantwerkzeug - Wiederaufbereitung, 3100 Celle Diamond bit with shank tube and threaded tube connection
DE3603499A1 (en) * 1985-05-07 1986-11-13 Geißler & Kuper GmbH Diamantwerkzeug - Wiederaufbereitung, 3100 Celle Diamond bit with shank tube and threaded tube connection
JPS62107909A (en) * 1985-11-05 1987-05-19 Disco Abrasive Sys Ltd Two-blade core drill and manufacture thereof
DE8715431U1 (en) * 1986-12-10 1988-04-07 Fa. Herbert Happe, 5600 Wuppertal, De
DE3706641A1 (en) * 1987-03-02 1988-09-15 Hilti Ag HOLLOW DRILL
DE8805449U1 (en) * 1988-04-25 1988-06-09 Maier, Wolfgang, 5630 Remscheid, De
DE4226363C2 (en) * 1992-08-10 1995-07-06 Bauer Spezialtiefbau Drill bit with widely distributed, detachably arranged tooth bodies
DE19650480A1 (en) * 1996-12-05 1998-06-10 Ofra Struhalla Diamond tool
DE59800309D1 (en) * 1997-01-27 2000-11-30 Swarovski Tyrolit Schleif Stone processing tool with improved gating behavior
US6203416B1 (en) * 1998-09-10 2001-03-20 Atock Co., Ltd. Outer-diameter blade, inner-diameter blade, core drill and processing machines using same ones
DE202004010916U1 (en) * 2004-07-12 2005-11-24 Diewe Diamantwerkzeuge Gmbh Drill bit has body which in head or cutting region has in longitudinal or circumferential direction toothed profile with apex line which in side view has height-variable course, especially curvature
GB2423537A (en) * 2005-02-24 2006-08-30 Marcrist Internat Ltd Core drills
GB2423538A (en) * 2005-02-24 2006-08-30 Marcrist Internat Ltd Core drilling segments with side protection
GB2423536A (en) * 2005-02-24 2006-08-30 Marcrist Internat Ltd Diamond core drill
RU168413U1 (en) * 2016-05-18 2017-02-02 Акционерная Компания "АЛРОСА" (публичное акционерное общество) (АК "АЛРОСА" (ПАО)) DRILL BIT
CN114183079A (en) * 2021-11-15 2022-03-15 河南黄河旋风股份有限公司 Drill barrel with water adding and slag discharging functions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1583845A1 (en) * 1968-02-19 1970-09-24 Zentrales Reparatur Und Ausrue Drill bit for deep, digging, exploration and other drilling
US3537538A (en) * 1969-05-21 1970-11-03 Christensen Diamond Prod Co Impregnated diamond bit
BE874985A (en) * 1979-03-21 1979-07-16 Diamant Boart Sa SURVEY CROWN
US4267814A (en) * 1979-12-06 1981-05-19 Federal-Mogul Corporation Abrasive saw blade for trapezoidal grooving
AT373196B (en) * 1980-11-11 1983-12-27 Swarovski Tyrolit Schleif HOLLOW DRILL

Also Published As

Publication number Publication date
ATE34329T1 (en) 1988-06-15
EP0156762A1 (en) 1985-10-02
DE3408092A1 (en) 1985-09-19
EP0156762B1 (en) 1988-05-18

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Legal Events

Date Code Title Description
8363 Opposition against the patent