Patents by Inventor Robert Round

Robert Round 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).

  • Undercut split die
    Patent number: 6318986
    Abstract: This invention relates to a device to compact parts with an undercut out of powder material having an upper die moveable relative a lower die, at least one upper punch associated with the upper die for relative movement therebetween, at least two lower punches associated with the lower die for relative movement therebetween, the lower punches defining a lower cavity with the lower die for filling with the powder material when the dies are in an open position, the upper die contacting the lower die in a closed position for movement of one of the lower punches towards the upper die so as to transfer the powder material towards the upper die and then to compact the powder material between the upper and lower punches with said dies in the closed position so as to produce the part; the dies moveable to an eject position for ejection of the compacted part.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: November 20, 2001
    Assignee: Stackpole Limited
    Inventors: Gerd Hinzmann, Mark Haiko, Frank Ma, Allan Wilson, Keith Buckley-Golder, Robert Round
  • Method of making a component using a phased split die
    Patent number: 6120728
    Abstract: This invention relates to a device to compact parts with an undercut out of powder metal, including a pair of dies linearly moveable relative to one another and then phased, and an associated linearly displaceable pair of punches to produce said parts with said undercut.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: September 19, 2000
    Assignee: Stackpole Limited
    Inventors: Gerd Hinzmann, Mark Haiko, Keith Bukley-Golder, Robert Round, Alan Wilson, Frank Ma
  • Undercut split die
    Patent number: 6099772
    Abstract: This invention relates to a device to compact parts with an undercut out of powder material having an upper die moveable relative a lower die, at least one upper punch associated with the upper die for relative movement therebetween, at least two lower punches associated with said lower die for relative movement therebetween, the lower punches defining a lower cavity with the lower die for filling with the powder material when the dies are in an open position, the upper die contacting the lower die in a closed position for movement of one of the lower punches towards the upper die so as to transfer the powder material towards the upper die and then to compact the powder material between the upper and lower punches with said dies in the closed position so as to produce said part; said dies moveable to an eject position for ejection of the compacted part.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: August 8, 2000
    Assignee: Stackpole Limited
    Inventors: Gerd Hinzmann, Mark Haiko, Frank Ma, Allan Wilson, Keith Buckley-Golder, Robert Round
  • Phased split die
    Patent number: 5698149
    Abstract: This invention relates to a device to compact parts with an undercut out of powder metal, including a pair of dies linearly moveable relative to one another and then phased, and an associated linearly displaceable pair of punches to produce said parts with said undercut.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: December 16, 1997
    Assignee: Stackpole Limited
    Inventors: Gerd Hinzmann, Mark Haiko, Frank Ma, Allan Wilson, Keith Buckley-Golder, Robert Round