Patents by Inventor WERNER BRUNO PENKERT

WERNER BRUNO PENKERT 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).

  • Publication number: 20200180048
    Abstract: A tool body (12) for a shell end mill (10) is described with at least one helical chip guiding groove (24) arranged at the circumference of the tool body (12) for chip dissipation and at least two receptacles (28) for indexable cutting inserts (26) arranged at the chip guiding groove (24). In this case, the receptacles (28) each comprise a base surface having a bore for receiving an indexable cutting insert fastening screw (34) and at least one first abutment surface adjacent to the base surface. The transition between the base surface and the first contact surface is a groove. In addition, a cutting tool is described with such a tool body, wherein a two-sided indexable cutting insert (26) is attached in each receptacle (28).
    Type: Application
    Filed: February 10, 2020
    Publication date: June 11, 2020
    Applicant: Kennametal Inc.
    Inventors: Alex Fraese, Mark Alan Francis, Werner Bruno Penkert, Michael Kreuzer
  • Patent number: 10556278
    Abstract: A tool body (12) for a shell end mill (10) is described with at least one helical chip guiding groove (24) arranged at the circumference of the tool body (12) for chip dissipation and at least two receptacles (28) for indexable cutting inserts (26) arranged at the chip guiding groove (24). In this case, the receptacles (28) each include a base surface having a bore for receiving an indexable cutting insert fastening screw (34) and at least one first abutment surface adjacent to the base surface. The transition between the base surface and the first contact surface is a groove. In addition, a cutting tool is described with such a tool body, wherein a two-sided indexable cutting insert (26) is attached in each receptacle (28).
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: February 11, 2020
    Assignee: KENNAMETAL INC.
    Inventors: Alex Fraese, Mark Alan Francis, Werner Bruno Penkert, Michael Kreuzer
  • Publication number: 20180050397
    Abstract: A tool body (12) for a shell end mill (10) is described with at least one helical chip guiding groove (24) arranged at the circumference of the tool body (12) for chip dissipation and at least two receptacles (28) for indexable cutting inserts (26) arranged at the chip guiding groove (24). In this case, the receptacles (28) each comprise a base surface having a bore for receiving an indexable cutting insert fastening screw (34) and at least one first abutment surface adjacent to the base surface. The transition between the base surface and the first contact surface is a groove. In addition, a cutting tool is described with such a tool body, wherein a two-sided indexable cutting insert (26) is attached in each receptacle (28).
    Type: Application
    Filed: August 16, 2016
    Publication date: February 22, 2018
    Applicant: Kennametal Inc.
    Inventors: Alex Fraese, Mark Alan Francis, Werner Bruno Penkert, Michael Kreuzer
  • Patent number: 9387537
    Abstract: A wedge clamp includes a top wall, a bottom wall, a front wall, a rear wall opposite the front wall, and a fluid port traversing from the front wall to the rear wall. The fluid port has a front opening and a rear opening to allow cooling fluid to pass therethrough. In one embodiment, the front opening is a rounded isosceles trapezoid in shape with a pair of parallel substantially planar side walls of different length and a pair of arcuate side walls connecting the pair of planar side walls. The rear opening has a greater surface area proximate the rear wall and a smaller surface area proximate the front opening, resulting in a funnel-shaped opening to cause an increase in velocity of the cooling fluid passing through the fluid port.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: July 12, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Brad Daniel Hoffer, Michael Glenn Morrison, Werner Bruno Penkert
  • Publication number: 20150273589
    Abstract: A wedge clamp includes a top wall, a bottom wall, a front wall, a rear wall opposite the front wall, and a fluid port traversing from the front wall to the rear wall. The fluid port has a front opening and a rear opening to allow cooling fluid to pass therethrough. In one embodiment, the front opening is a rounded isosceles trapezoid in shape with a pair of parallel substantially planar side walls of different length and a pair of arcuate side walls connecting the pair of planar side walls. The rear opening has a greater surface area proximate the rear wall and a smaller surface area proximate the front opening, resulting in a funnel-shaped opening to cause an increase in velocity of the cooling fluid passing through the fluid port.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 1, 2015
    Applicant: Kennametal Inc.
    Inventors: Brad Daniel Hoffer, Michael Glenn Morrison, Werner Bruno Penkert
  • Patent number: 9085034
    Abstract: A method for milling a blank in the production of a turbine blade which in the final state has at least one blade root for fastening to a carrier and also an adjoining blade body extending in the longitudinal direction includes clamping the blank on its root side in a mount and machining the blank with a milling cutter. Machining the blank includes moving the milling cutter in an advancing direction for roughing machining while superimposing a circular movement as per a trochoidal milling method.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: July 21, 2015
    Assignee: KENNAMETAL INC
    Inventors: Uwe Hobohm, Mario Stromeyer, Werner Bruno Penkert
  • Publication number: 20130051949
    Abstract: A method for milling a blank in the production of a turbine blade which in the final state has at least one blade root for fastening to a carrier and also an adjoining blade body extending in the longitudinal direction includes clamping the blank on its root side in a mount and machining the blank with a milling cutter. Machining the blank includes moving the milling cutter in an advancing direction for roughing machining while superimposing a circular movement as per a trochoidal milling method.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 28, 2013
    Applicant: KENNAMETAL, INC.
    Inventors: UWE HOBOHM, MARIO STROMEYER, WERNER BRUNO PENKERT