Patents by Inventor Edwin van Doorn

Edwin van Doorn 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: 6708397
    Abstract: In a soft contact lens manufacturing process, an injection molding machine (IMM) produces many thermoplastic injection molded front curve (FC) and back curve (BC) mold parts, each of which mold parts is subsequently used only once to mold a single soft contact lens. An inlay station with alignment assemblies and transfer tubes provide for the precise transfer to and alignment of the FC and BC molds in pallets during their transfer from the IMM to pallets on an assembly line in a high speed automated commercial production operation. A rotatable FC transfer arm and a rotatable BC transfer arm transfer the FC and BC molds from the IMM machine to the pallets in an inlay station. The precisely aligned transfer is provided by two alignment rods of an alignment assembly which pass through two alignment apertures in the pallet and then pass through two alignment apertures in one of the FC or BC alignment arms.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: March 23, 2004
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Phillip K. Parnell, Sr., David Dolan, Richard W. Abrams, Michael F. Widman, Ronaldus Joannes Cornelis Maria Kok, Edwin van Doorn
  • Publication number: 20030041449
    Abstract: This invention provides an arrangement for moving an item from a first station to a transfer tube comprising a transfer tube, a transfer arm for placement of the item on the transfer tube, and alignment means for aligning the item with the transfer tube.
    Type: Application
    Filed: August 9, 2002
    Publication date: March 6, 2003
    Inventors: Phillip K. Parnell, David Dolan, Richard W. Abrams, Michael F. Widman, Ronaldus Joannes Cornelis Maria Kok, Edwin van Doorn
  • Publication number: 20030029030
    Abstract: In a soft contact lens manufacturing process, an injection molding machine (IMM) produces many thermoplastic injection molded front curve (FC) and back curve (BC) mold parts, each of which mold parts is subsequently used only once to mold a single soft contact lens. An inlay station with alignment assemblies and transfer tubes provide for the precise transfer to and alignment of the FC and BC molds in pallets during their transfer from the IMM to pallets on an assembly line in a high speed automated commercial production operation. A rotatable FC transfer arm and a rotatable BC transfer arm transfer the FC and BC molds from the IMM machine to the pallets in an inlay station. The precisely aligned transfer is provided by two alignment rods of an alignment assembly which pass through two alignment apertures in the pallet and then pass through two alignment apertures in one of the FC or BC alignment arms.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 13, 2003
    Inventors: Phillip K. Parnell,, David Dolan, Richard W. Abrams, Michael F. Widman, Ronaldus Joannes Cornelis Maria Kok, Edwin van Doorn
  • Patent number: 6439870
    Abstract: An apparatus for the automated production of ophthalmic lenses, particularly compound lenses having a plastic coating on a plastic lens is described. A mold, after rotational orientation, is placed in a gimbal assembly to provide for the proper tilt. This gimbal assembly forms part of a fixture attached to an indexing means which moves for complete assembly of a molding fixture and then moves the molding fixture through a chamber to cure the resin. A preform, after rotational orientation, is held, by a preform gripper placed above the mold, and with sufficient clearance between the mold and the preform to allow the correct resin thickness during the curing portion of the process. The fixture is also provided with members to firmly grip the preform gripper so as to maintain its orientation throughout the curing process.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: August 27, 2002
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Gary Marceau, Dan Boulay, Ivan Nunez, Charles Foster, Eric Dogan, Joseph A. Bishop, Amitava Gupta, Steven Hamblin, Edgar Menezes, Venkat Sekharipuram, Ron Kok, Michael Hompus, Jack van Nunen, Marc Evers, Edwin van Doorn