Patents by Inventor Thomas C. Ravn

Thomas C. Ravn 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: 5626000
    Abstract: A packaging arrangement for packaging products, such as contact lenses, in packages such as blister packs. The packaging arrangement includes a rotary index table defining on its upper surface a plurality of identical, radially-oriented support pallets, equally spaced apart around the rotary index table. Each support pallet is designed to support an array of individual package bases thereon, and is sequentially rotated to stop at angularly spaced radial positions in the rotary packaging machine. At a first radial position, the rotary packaging station receives blister package bases, each having a product deposited therein, and places the package bases in the support pallet then at the first radial position.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: May 6, 1997
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Russell J. Edwards, Richard W. Abrams, William E. Holley, Borge P. Gundersen, Thomas C. Ravn
  • Patent number: 5623816
    Abstract: A packaging arrangement for packaging products, such as contact lenses, in packages such as blister packs. The packaging arrangement includes a rotary index table defining on its upper surface a plurality of identical, radially-oriented support pallets, equally spaced apart around the rotary index table. Each support pallet is designed to support an array of individual package bases thereon, and is sequentially rotated to stop at angularly spaced radial positions in the rotary packaging machine. At a first radial position, the rotary packaging station receives blister package bases, each having a product deposited therein, and places the package bases in the support pallet then at the first radial position.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 29, 1997
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Russell J. Edwards, Richard W. Abrams, William E. Holley, Borge P. Gundersen, Thomas C. Ravn
  • Patent number: 5578331
    Abstract: An apparatus is provided for removing and transporting articles, such as contact lens sections from a manufacturing line to inspection and packaging stations. The lenses are deposited in a transparent plastic primary package which carries the lenses through the inspection station and becomes part of the primary package when a cover is sealed thereto. The invention includes various assemblies, including lens transfer assemblies, deionized water filling and removal assemblies, a water degassing assembly, a lens inspection assembly, and a lens package sealing assembly. The lenses are removed from pallets at a post hydration station, transported and spatially redistributed, and deposited in the primary packages disposed on a second set of pallets. The packages on the second set of pallets are filled with degassed deionized water. The contact lenses and packages are then transported to an inspection station.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: November 26, 1996
    Assignee: Vision Products, Inc.
    Inventors: Wallace A. Martin, Russell J. Edwards, Borge P. Gundersen, Darren S. Keene, Ture Kindt-Larsen, John M. Lepper, Niels J. Madsen, Thomas C. Ravn, Daniel T. Wang, William E. Holley
  • Patent number: 5565059
    Abstract: An apparatus for the processing and segmenting of a cover-forming laminate web or sheeting structure which is adapted to interconnect a plurality of containers, such as the base members of blister packages each of which is designed to contain a hydrophilic contact lens in a sterile aqueous solution. More specifically disclosed is an apparatus for the imprinting, perforating, slitting and cutting the laminated web structure such that the severed laminate segments constitute printed covering label for an array of such containers, and whereby the laminated web or sheeting segment may be severed along weakening or perforation lines so as to provide a separable packaging arrangement for individual of the containers which are subsequently adhered thereto.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: October 15, 1996
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Russell J. Edwards, Richard W. Abrams, Borge P. Gundersen, William E. Holley, Thomas C. Ravn, Mark E. Schlagel, Daniel T. Wang
  • Patent number: 5528878
    Abstract: An automated apparatus for controlling the automatic packaging of contact lenses in a contact lens fabrication facility includes: a first robotic transfer device for periodically transferring a first predetermined amount of individual packages from an inspection station to an intermediate consolidation buffer and depositing the packages on the consolidation buffer; a control device for tracking and identifying each individual contact lens conveyed from the inspection station to the consolidation buffer and including memory and logic circuits for storing the identity of individual packages containing contact lenses that have been previously determined at the inspection station as being out of specification, and, generating a signal to enable the first robotic device to discard any individual package identified as out of specification; and, a second robotic assembly for periodically transferring a second predetermined amount of individual packages from the consolidation buffer to a second processing station, th
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: June 25, 1996
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Russell J. Edwards, Mary L. Dolan, Svend Christensen, Borge P. Gundersen, John M. Lepper, Daniel T. Wang, Richard W. Abrams, Thomas C. Ravn
  • Patent number: 5394988
    Abstract: An ophthalmic lens pallet having wells for receiving one or more lens containers at the receiving point achieves the requisite uniformity of motion in the direction of motion, and stability when transporting the lens in the orthogonal, non-translating directions by restraining the pallet between rails. A spring-loaded roller ball located on the side walls of the pallet body cooperate with guide rails on the conveyor to compress the spring-loaded roller ball when the pallet is between the guide rails. Blind holes on the pallet engage a drive which transports the pallet from the lens receiving point to an inspection station then to a lens disposition mechanism. The pallet wells comprise holes that pass through the pallet. These holes along with the rail and transport system make possible an arrangement of a lamp and camera for capturing an image of a lens.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: March 7, 1995
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Russell J. Edwards, James A. Ebel, Borge P. Gundersen, Thomas C. Ravn