Patents by Inventor Michael P. O'Grady

Michael P. O'Grady 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).

  • Co-injection apparatus for injection molding
    Patent number: 6974556
    Abstract: A co-injection nozzle pin (20) having downstream and upstream ends. The nozzle pin has therein a central bore (30) including an upstream end (32) adapted to communicate with a first material and a downstream end (34) exiting at the downstream end of the pin. The nozzle pin also has an outer surface (36) including a first portion (38) having a diameter D1, a second portion (40) having a diameter D2, wherein D2 is less than D1 and the first portion is rearward of the second portion. The pin further includes a channel (46) spiralling around the outer surface and being adapted to communicate with a second material. The channel (46) includes a first segment (52) defined in the first portion (38) of the outer surface and increasing in depth as it travels in a downstream direction and a second segment (54) defined in the second portion (40) of the outer surface and decreasing in depth as it travels in a downstream direction.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 13, 2005
    Assignee: Bemis Manufacturing Company
    Inventors: Peter F. Bemis, Steven J. Kolste, Daniel Cykana, Stephen R. Fiacchino, Michael P. O'Grady
  • Co-injection apparatus for injection molding
    Publication number: 20030209833
    Abstract: A co-injection nozzle pin (20) having downstream and upstream ends. The nozzle pin has therein a central bore (30) including an upstream end (32) adapted to communicate with a first material and a downstream end (34) exiting at the downstream end of the pin. The nozzle pin also has an outer surface (36) including a first portion (38) having a diameter D1, a second portion (40) having a diameter D2, wherein D2 is less than D1 and the first portion is rearward of the second portion. The pin further includes a channel (46) spiralling around the outer surface and being adapted to communicate with a second material. The channel (46) includes a first segment (52) defined in the first portion (38) of the outer surface and increasing in depth as it travels in a downstream direction and a second segment (54) defined in the second portion (40) of the outer surface and decreasing in depth as it travels in a downstream direction.
    Type: Application
    Filed: November 1, 2002
    Publication date: November 13, 2003
    Inventors: Peter F. Bemis, Steven J. Kolste, Daniel Cykana, Stephen R. Fiacchino, Michael P. O'Grady