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Publication numberUS3476438 B1
Publication typeGrant
Publication dateAug 16, 1983
Filing dateDec 18, 1967
Priority dateDec 18, 1967
Publication numberUS 3476438 B1, US 3476438B1, US-B1-3476438, US3476438 B1, US3476438B1
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet

US 3476438 B1
Abstract  available in
Description  available in
Claims  available in
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3833265 *Nov 6, 1972Sep 3, 1974Elders GRotatable sleeve for self-sharpening bit
US4702525 *Mar 17, 1986Oct 27, 1987Sollami Phillip AFor mining coal
US5131725 *Sep 4, 1990Jul 21, 1992Kennametal Inc.Rotatable cutting tool having an insert with flanges
US5484191 *Sep 2, 1993Jan 16, 1996The Sollami CompanyInsert for tungsten carbide tool
US5551760 *Feb 13, 1995Sep 3, 1996The Sollami CompanyTungsten carbide insert for a cutting tool
US6019434 *Oct 7, 1997Feb 1, 2000Fansteel Inc.Point attack bit
US6341823May 22, 2000Jan 29, 2002The Sollami CompanyRotatable cutting tool with notched radial fins
US6354771Dec 2, 1999Mar 12, 2002Boart Longyear Gmbh & Co. KgCutting or breaking tool as well as cutting insert for the latter
US8210618Aug 15, 2008Jul 3, 2012Sandvik Intellectual Property AbReduced volume cutting tip and cutter bit assembly incorporating same
US8449041 *Oct 27, 2010May 28, 2013Sandvik Intellectual Property AbGrading pick with extended fins
US8678517Oct 20, 2010Mar 25, 2014Sandvik Intellectual Property AbReduced volume cutting tip and cutting bit incorporating same
US20120104830 *Oct 27, 2010May 3, 2012Sandvik Intellectual Property AbGrading Pick With Extended Fins
US20120301238 *Mar 21, 2012Nov 29, 2012Black & Decker Inc.Chisels
USRE30807 *Dec 17, 1979Dec 1, 1981 Point-attack bit
WO2012054199A1 *Sep 28, 2011Apr 26, 2012Sandvik Intellectual Property AbReduced volume cutting tip and cutting bit incorporating same
WO2012057957A1 *Sep 28, 2011May 3, 2012Sandvik Intellectual Property AbGrading pick with extended fins
Classifications
International ClassificationE21C35/00, E21C35/18
Cooperative ClassificationE21C35/18
European ClassificationE21C35/18
Legal Events
DateCodeEventDescription
Feb 19, 1985AS02Assignment of assignor's interest
Owner name: HUGHES TOOL COMPANY - USA, A CORP OF DE
Effective date: 19850205
Owner name: HUGHES TOOL COMPANY, A CORP OF DE
Feb 19, 1985ASAssignment
Owner name: HUGHES TOOL COMPANY - USA, A CORP OF DE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HUGHES TOOL COMPANY, A CORP OF DE;REEL/FRAME:004368/0605
Effective date: 19850205
Aug 16, 1983B1Reexamination certificate first reexamination
Mar 15, 1982ASAssignment
Owner name: HUGHES TOOL COMPANY A CORP OF DE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GENERAL ELECTRIC COMPANY;REEL/FRAME:003967/0068
Effective date: 19820216