Patents by Inventor Uwe Schleinkofer

Uwe Schleinkofer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6170917
    Abstract: A pick-style tool that includes an elongate tool body with an axially forward end and an axially rearward end, and a hard insert affixed to the tool body at the axially forward end is disclosed. The hard insert comprises a WC-cermet comprising tungsten carbide and about 5 wt. % to 27 wt. % Co—Ni—Fe-binder. The Co—Ni—Fe-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: January 9, 2001
    Assignee: Kennametal Inc.
    Inventors: Hans-Wilm Heinrich, Manfred Wolf, Dieter Schmidt, Uwe Schleinkofer
  • Patent number: 6024776
    Abstract: Cermets having a Co--Ni--Fe-binder are described. The Co--Ni--Fe-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic crystal structure and avoids stress and/or strain induced phase transformations. Stated differently, the Co--Ni--Fe-binder exhibits reduced work hardening.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: February 15, 2000
    Assignee: Kennametal Inc.
    Inventors: Hans-Wilm Heinrich, Manfred Wolf, Dieter Schmidt, Uwe Schleinkofer
  • Patent number: 6022175
    Abstract: An elongate rotary tool including at least one cutting edge that is useful in the machining of workpiece materials is disclosed. The elongate rotary tool comprises a cermet comprising at least one hard component and about 0.2 wt. % to 19 wt. % Co--Ni--Fe-binder. The Co--Ni--Fe-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: February 8, 2000
    Assignee: Kennametal Inc.
    Inventors: Hans-Wilm Heinrich, Manfred Wolf, Dieter Schmidt, Uwe Schleinkofer
  • Patent number: 6010283
    Abstract: A cutting insert including a flank face, a rake face, and a cutting edge at the intersection of the flank and rake faces that is useful in the chip forming machining of workpiece materials is disclosed. The cutting insert comprises a cermet comprising at least one hard component and about 2 wt % to 19 wt % Co--Ni--FE-binder. The Co--Ni--FE-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: January 4, 2000
    Assignee: Kennametal Inc.
    Inventors: Hans-Wilm Henrich, Manfred Wolf, Dieter Schmidt, Uwe Schleinkofer
  • Patent number: 5992546
    Abstract: A rotary tool that includes an elongate tool body and a hard insert affixed to the tool body is disclosed. The hard insert includes a WC-cermet including tungsten carbide and about 5 wt. % to 19 wt. % Co--Ni--Fe-binder. The Co--Ni--Fe-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: November 30, 1999
    Assignee: Kennametal Inc.
    Inventors: Hans-Wilm Heinrich, Manfred Wolf, Dieter Schmidt, Uwe Schleinkofer