ES2005287A6 - Cutter bit having hard tip with middle section defined by concave surface of revolution. - Google Patents

Cutter bit having hard tip with middle section defined by concave surface of revolution.

Info

Publication number
ES2005287A6
ES2005287A6 ES8702549A ES8702549A ES2005287A6 ES 2005287 A6 ES2005287 A6 ES 2005287A6 ES 8702549 A ES8702549 A ES 8702549A ES 8702549 A ES8702549 A ES 8702549A ES 2005287 A6 ES2005287 A6 ES 2005287A6
Authority
ES
Spain
Prior art keywords
section
tip
revolution
flange
concave surface
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
ES8702549A
Other languages
Spanish (es)
Inventor
Wayne H Beach
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.)
Kennametal Inc
Original Assignee
Kennametal Inc
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=25421369&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2005287(A6) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kennametal Inc filed Critical Kennametal Inc
Publication of ES2005287A6 publication Critical patent/ES2005287A6/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

A cutter bit hard tip (62) has an outer tip section (76), an inner flange section (78) , and a middle section (80) disposed between and merging at its opposite ends with the tip and flange sections and being defined by a continuous concave surface of revolution (82). The tip, flange and middle sections lie along a common longitudinal central axis (84). The tip section has a rounded-off end, and a frusto-conical surface of revolution (88) merging from the end. The flange section has a right cylindrical surface whose diameter is greater than the maximum diameter of the tip section. The middle section has a maximum diameter less than or equal to the diameter of the flange section and a minimum diameter substantially equal to the maximum diameter of the tip section. The concave surface of revolution of the middle section in profile has an outwardly and downwardly sloping configuration generally similar to that of the sides of a bell-shaped curve.
ES8702549A 1986-09-09 1987-09-02 Cutter bit having hard tip with middle section defined by concave surface of revolution. Expired ES2005287A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90573086A 1986-09-09 1986-09-09

Publications (1)

Publication Number Publication Date
ES2005287A6 true ES2005287A6 (en) 1989-03-01

Family

ID=25421369

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8702549A Expired ES2005287A6 (en) 1986-09-09 1987-09-02 Cutter bit having hard tip with middle section defined by concave surface of revolution.

Country Status (8)

Country Link
EP (1) EP0259620A1 (en)
JP (1) JPH0672515B2 (en)
AR (1) AR243251A1 (en)
BR (1) BR8704556A (en)
CA (1) CA1279336C (en)
DK (1) DK467587A (en)
ES (1) ES2005287A6 (en)
ZA (1) ZA876082B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019185587A1 (en) * 2018-03-28 2019-10-03 Thyssenkrupp Industrial Solutions Ag Excavating tooth for a bucket-wheel excavator

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893875A (en) * 1988-12-16 1990-01-16 Caterpillar Inc. Ground engaging bit having a hardened tip
US5131725A (en) * 1990-09-04 1992-07-21 Kennametal Inc. Rotatable cutting tool having an insert with flanges
DE29506469U1 (en) * 1995-04-15 1995-06-08 RDZ Dutzi GmbH, 76698 Ubstadt-Weiher Tines for a tillage implement
ES2162965T3 (en) * 1995-10-31 2002-01-16 Bitelli Spa ACTIVE ELEMENT FOR THE SUPPORT OF, AT MINIMUM, A MILLING TOOL, SUITABLE FOR APPLICATION TO MACHINE DRILLING DRUMS FOR SOIL LIFTING.
EA016278B1 (en) * 2007-07-02 2012-03-30 Дзе Юниверсити Оф Сидней Cutting tip and tool
CN102418523A (en) * 2011-12-14 2012-04-18 宁海县盛源激光科技有限公司 Highly abrasion-resistant sparkless knife-shaped pick
GB201320501D0 (en) * 2013-11-20 2014-01-01 Element Six Gmbh Strike constructions,picks comprising same and methods for making same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519309A (en) * 1965-08-12 1970-07-07 Kennametal Inc Rotary cone bit retained by captive keeper ring
US3442342A (en) * 1967-07-06 1969-05-06 Hughes Tool Co Specially shaped inserts for compact rock bits,and rolling cutters and rock bits using such inserts
GB1218308A (en) * 1969-08-11 1971-01-06 Kennametal Inc Mining tool
AT341978B (en) * 1976-04-14 1978-03-10 Voest Ag ROUND CHISEL
US4108260A (en) * 1977-04-01 1978-08-22 Hughes Tool Company Rock bit with specially shaped inserts
US4254840A (en) * 1978-10-05 1981-03-10 Reed Tool Company Drill bit insert
US4316636A (en) * 1979-02-01 1982-02-23 Kennametal Inc. Excavation and road maintenance bits and blocks
GB2087949B (en) * 1980-11-24 1984-11-14 Padley & Venables Ltd Cutting tools
GB2135716B (en) * 1983-03-02 1986-05-21 Padley & Venables Ltd Mineral-mining pick and holder assembly
GB8306641D0 (en) * 1983-03-10 1983-04-13 Wimet Mining Ltd Pick holding arrangements
SE450259C (en) * 1983-03-23 1996-07-22 Sandvik Ab Tools for breaking or cutting solid materials such as asphalt
US4497520A (en) * 1983-04-29 1985-02-05 Gte Products Corporation Rotatable cutting bit
GB8427392D0 (en) * 1984-10-30 1984-12-05 Peaks J F Cutting tooth
AT381985B (en) * 1984-12-19 1986-12-29 Voest Alpine Ag SPRAYING DEVICE FOR COOLANT FROM A NOZZLE OF A SCREW HEAD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019185587A1 (en) * 2018-03-28 2019-10-03 Thyssenkrupp Industrial Solutions Ag Excavating tooth for a bucket-wheel excavator

Also Published As

Publication number Publication date
JPS6378993A (en) 1988-04-09
EP0259620A1 (en) 1988-03-16
AR243251A1 (en) 1993-07-30
AU7717987A (en) 1988-03-17
ZA876082B (en) 1988-02-25
DK467587D0 (en) 1987-09-08
DK467587A (en) 1989-03-09
AU587141B2 (en) 1989-08-03
BR8704556A (en) 1988-04-26
CA1279336C (en) 1991-01-22
JPH0672515B2 (en) 1994-09-14

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2007-09-02

FD1A Patent lapsed

Effective date: 20070903