Patents by Inventor Hagen W. Dost

Hagen W. Dost 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: 9724764
    Abstract: A spade bit includes a shaft defining an axis about which the spade bit is configured to be rotated. The space bit also includes a blade attached to the shaft and having a first paddle portion and a second paddle portion. In addition, the spade bit includes a tip portion attached to the blade and aligned with the axis. The first paddle portion includes (i) a first leading end portion positioned on a first side of the axis and configured to define a first cutting edge portion, and (ii) a first lateral extension portion configured to define a first sloping surface. The first paddle portion defines a first relief space positioned adjacent to both the first sloping portion and the first leading end portion. The second paddle portion includes (i) a second leading end portion positioned on an opposite second side of the axis and configured to define a second cutting edge portion, and (ii) a second lateral extension portion configured to define a second sloping surface.
    Type: Grant
    Filed: February 3, 2013
    Date of Patent: August 8, 2017
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventors: Hagen W. Dost, Javier I. Sandoval
  • Patent number: 8979444
    Abstract: A cutting bit adapted to cut wood or metal is disclosed.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: March 17, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Hagen W. Dost
  • Patent number: 8366357
    Abstract: A spade bit includes a shaft defining an axis about which the spade bit is configured to be rotated. The space bit also includes a blade attached to the shaft and having a first paddle portion and a second paddle portion. In addition, the spade bit includes a tip portion attached to the blade and aligned with the axis. The first paddle portion includes (i) a first leading end portion positioned on a first side of the axis and configured to define a first cutting edge portion, and (ii) a first lateral extension portion configured to define a first sloping surface. The first paddle portion defines a first relief space positioned adjacent to both the first sloping portion and the first leading end portion. The second paddle portion includes (i) a second leading end portion positioned on an opposite second side of the axis and configured to define a second cutting edge portion, and (ii) a second lateral extension portion configured to define a second sloping surface.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: February 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Hagen W. Dost, Javier I. Sandoval
  • Patent number: 8262325
    Abstract: A bit including a shaft defining an axis about which the bit is configured to be rotated. The bit further includes a blade having a first end attached to the shaft and an opposite second end, the blade further having (i) a first blade portion including a first shoulder defining a first cutting edge portion at the second end of the blade, and (ii) a second blade portion including a second shoulder defining a second cutting edge portion at the second end of the blade. The bit additionally includes a frusto-conically-shaped tip portion having an apex and being attached to the second end of the blade. The frusto-conically-shaped tip portion includes threads extending from the apex to a location adjacent to the first cutting edge portion and the second cutting edge portion.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: September 11, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Hagen W. Dost, Javier I. Sandoval, Patrick M. McAuliffe, Creighton W. Nachtigall, Kenneth C. Osberg
  • Patent number: 7871224
    Abstract: A tool bit providing a combined drill bit and reamer is disclosed herein. The tool bit comprises an axial bit shaft including a bore end and a shank end. At least one helical land portion is provided on the bit shaft. The at least one helical land portion includes a cutting edge and a trailing edge. At least one reamer blade is provided on the helical land portion at the bore end of the bit shaft. The at least one reamer blade includes a substantially axial cutting edge. A tip arrangement is also included on the bore end of the bit shaft. The tip arrangement includes a center blade positioned between peripheral cutting blades.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: January 18, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Hagen W. Dost, Patrick M. McAuliffe, Javier Ibarra, Alexander D. Socha
  • Publication number: 20090116918
    Abstract: A spade bit includes a shaft defining an axis about which the spade bit is configured to be rotated. The space bit also includes a blade attached to the shaft and having a first paddle portion and a second paddle portion. In addition, the spade bit includes a tip portion attached to the blade and aligned with the axis. The first paddle portion includes (i) a first leading end portion positioned on a first side of the axis and configured to define a first cutting edge portion, and (ii) a first lateral extension portion configured to define a first sloping surface. The first paddle portion defines a first relief space positioned adjacent to both the first sloping portion and the first leading end portion. The second paddle portion includes (i) a second leading end portion positioned on an opposite second side of the axis and configured to define a second cutting edge portion, and (ii) a second lateral extension portion configured to define a second sloping surface.
    Type: Application
    Filed: October 9, 2008
    Publication date: May 7, 2009
    Applicants: Credo Technology Corporation, Robert Bosch GmbH
    Inventors: Hagen W. Dost, Javier I. Sandoval
  • Publication number: 20090097931
    Abstract: A bit including a shaft defining an axis about which the bit is configured to be rotated. The bit further includes a blade having a first end attached to the shaft and an opposite second end, the blade further having (i) a first blade portion including a first shoulder defining a first cutting edge portion at the second end of the blade, and (ii) a second blade portion including a second shoulder defining a second cutting edge portion at the second end of the blade. The bit additionally includes a frusto-conically-shaped tip portion having an apex and being attached to the second end of the blade. The frusto-conically-shaped tip portion includes threads extending from the apex to a location adjacent to the first cutting edge portion and the second cutting edge portion.
    Type: Application
    Filed: October 9, 2008
    Publication date: April 16, 2009
    Applicants: Credo Technology Corporation, Robert Bosch GmbH
    Inventors: Hagen W. Dost, Javier I. Sandoval, Patrick M. McAuliffe, Creighton W. Nachtigall
  • Publication number: 20090080989
    Abstract: A tool bit providing a combined drill bit and reamer is disclosed herein. The tool bit comprises an axial bit shaft including a bore end and a shank end. At least one helical land portion is provided on the bit shaft. The at least one helical land portion includes a cutting edge and a trailing edge. At least one reamer blade is provided on the helical land portion at the bore end of the bit shaft. The at least one reamer blade includes a substantially axial cutting edge. A tip arrangement is also included on the bore end of the bit shaft. The tip arrangement includes a center blade positioned between peripheral cutting blades.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Applicants: Credo Technology Corporation, Robert Bosch GmbH
    Inventors: Hagen W. Dost, Patrick M. McAuliffe, Javier Ibarra, Alexander D. Socha
  • Publication number: 20080304927
    Abstract: A cutting bit adapted to cut wood or metal is disclosed.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Applicants: Credo Technology Corporation, Robert Bosch GmbH
    Inventor: Hagen W. Dost
  • Patent number: 7401700
    Abstract: The present invention is directed to a tool accessory case having a first and a second housing member pivotally connected to each other along a hinge portion and forming a tool holding cavity. The tool accessory case also has at least one index configured for receiving at least one elongated tool accessory disposed in one of the housing members. The index has an upper guide for contacting an upper portion of the tool accessory, and a lower guide for contacting a lower portion of the tool accessory. Further, a flexible arm is included on either the index or one of the first and second housing members. The flexible arm is configured for deforming and applying a lateral pressure to the lower portion of the tool accessory for the purpose of positively retaining the tool accessory in the index. The tool accessory is slidingly received by the index, and the lateral pressure is applied by the flexible arm when the tool accessory is generally entirely received by the index.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: July 22, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Hagen W. Dost, Melvin A. Pendergraph, Brian M. Chiaruttini, Patrick M. McAuliffe, Javier Ibarra-Sandoval
  • Patent number: 7401698
    Abstract: A preferred embodiment of the present invention is directed to a tool accessory case having first and second housing members pivotally connected to each other along a hinge portion and forming a tool holding cavity. A latch is connected to the first housing member and is moveable between latched and unlatched positions. The latch has a gripping structure configured for gripping the second housing member, and at least one flexure member configured to contact the first housing member and bias the latch toward the latched position. The latch also has at least one fixed hinge guide for pivoting with respect to the first housing member and with respect to the flexure member. The tool accessory case also has a receiving structure disposed on the second housing member and is configured to receive the gripping structure of the latch when the latch is in the latched position.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: July 22, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Hagen W. Dost, Creighton Wade Nachtigall
  • Patent number: D523634
    Type: Grant
    Filed: April 30, 2005
    Date of Patent: June 27, 2006
    Assignee: Credo Technology Corporation
    Inventors: Hagen W. Dost, Harry Wales, Melvin A. Pendergraph, Douglas Collins, Patrick M. McAuliffe, Margaret Butler, Paul D. Hatch
  • Patent number: D553857
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: October 30, 2007
    Assignee: Credo Technology Corporation
    Inventors: Melvin A. Pendergraph, Douglas L. Collins, Hagen W. Dost, Paul D. Hatch, Kristian Buschmann
  • Patent number: D555902
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: November 27, 2007
    Assignee: Credo Technology Corporation
    Inventors: Melvin A. Pendergraph, Douglas L. Collins, Hagen W. Dost, Paul D. Hatch, Kristian Buschmann