AU587141B2 - 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
AU587141B2
AU587141B2 AU77179/87A AU7717987A AU587141B2 AU 587141 B2 AU587141 B2 AU 587141B2 AU 77179/87 A AU77179/87 A AU 77179/87A AU 7717987 A AU7717987 A AU 7717987A AU 587141 B2 AU587141 B2 AU 587141B2
Authority
AU
Australia
Prior art keywords
revolution
concave surface
middle section
cutter bit
section defined
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
AU77179/87A
Other versions
AU7717987A (en
AU587141C (en
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=AU587141(B2) "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 AU7717987A publication Critical patent/AU7717987A/en
Application granted granted Critical
Publication of AU587141B2 publication Critical patent/AU587141B2/en
Publication of AU587141C publication Critical patent/AU587141C/en
Anticipated expiration legal-status Critical
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
AU77179/87A 1986-09-09 1987-08-18 Cutter bit having hard tip with middle section defined by concave surface of revolution Expired AU587141C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90573086A 1986-09-09 1986-09-09
US905730 1986-09-09

Publications (3)

Publication Number Publication Date
AU7717987A AU7717987A (en) 1988-03-17
AU587141B2 true AU587141B2 (en) 1989-08-03
AU587141C AU587141C (en) 1993-02-04

Family

ID=

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749449A (en) * 1971-10-13 1973-07-31 Cincinnati Mine Machinery Co Means for removably affixing cutter bit and lug assemblies to driven elements of a mining machine or the like
AU505463B2 (en) * 1975-11-06 1979-11-22 Dresser Industries, Inc A rotary road planer cutter
AU570238B2 (en) * 1983-03-23 1988-03-10 Santrade Limited Cutting tool insert with circumferentially extending concave intermediate portion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749449A (en) * 1971-10-13 1973-07-31 Cincinnati Mine Machinery Co Means for removably affixing cutter bit and lug assemblies to driven elements of a mining machine or the like
AU505463B2 (en) * 1975-11-06 1979-11-22 Dresser Industries, Inc A rotary road planer cutter
AU570238B2 (en) * 1983-03-23 1988-03-10 Santrade Limited Cutting tool insert with circumferentially extending concave intermediate portion

Also Published As

Publication number Publication date
EP0259620A1 (en) 1988-03-16
DK467587D0 (en) 1987-09-08
JPH0672515B2 (en) 1994-09-14
ZA876082B (en) 1988-02-25
ES2005287A6 (en) 1989-03-01
DK467587A (en) 1989-03-09
AU7717987A (en) 1988-03-17
JPS6378993A (en) 1988-04-09
BR8704556A (en) 1988-04-26
CA1279336C (en) 1991-01-22
AR243251A1 (en) 1993-07-30

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