Patents by Inventor Michael William Litwin

Michael William Litwin 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).

  • Rigid vacuum tip
    Publication number: 20030031548
    Abstract: The invention is transfer tip, system and process for handling injection molded ophthalmic lens molds. The transfer tip is substantially rigid and in one embodiment has an outer surface that has a shape complementary to the shape of the lens mold being handled.
    Type: Application
    Filed: February 28, 2002
    Publication date: February 13, 2003
    Inventors: Phillip King Parell, Scott Frederick Ansell, Michael William Litwin, Gregory L. Berckmiller, Timothy Patrick Freeman, Richard John Fox
  • Rapid robotic handling of mold parts used to fabricate contact lenses
    Patent number: 6502009
    Abstract: A method for removing and transporting ophthalmic lens fabricating mold sections from a molding device to an inert chamber in a predetermined time, controlled by a central processor. The method includes starting a timer upon opening the molding device and exposing the mold sections; actuating a robotic arm to transport the mold sections from the molding device to an intermediate position using a compound movement; actuating a cam-controlled arm to transport the mold sections from the intermediate position to a pallet held on a conveyor belt at a cam-arm pre-part release location; and releasing the pallet to move on the conveyor belt to the inert chamber for continued transport of mold containing pallets to a treatment or processing facility for producing and/or packaging of the contact lenses.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: December 31, 2002
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Phillip King Parnell, Sr., Victor Lust, Michael William Litwin
  • Rapid robotic handling of mold parts used to fabricate contact lenses
    Patent number: 6007229
    Abstract: A method for removing and transporting ophthalmic lens fabricating mold sections from a molding device to an inert chamber in a predetermined time, controlled by a central processor, is disclosed. The method includes starting a timer upon opening the molding device and exposing the mold sections; actuating a robotic arm to transport the mold sections from the molding device to an intermediate position using a compound movement; actuating a cam-controlled arm to transport the mold sections from the intermediate position to a pallet held on a conveyor belt at a cam-arm pre-part release location; and releasing the pallet to move on the conveyor belt to the inert chamber for continued transport of mold containing pallets to a treatment or processing facility for producing and/or packaging of the contact lenses.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: December 28, 1999
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Phillip King Parnell, Sr., Victor Lust, Michael William Litwin