Patents by Inventor Svend Christensen
Svend Christensen 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).
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Patent number: 7286952Abstract: A method for testing subscriber access lines wherein the test is carried out locally, online and virtually all the time with the assistance of the digital signal processor for the subscriber line. The test results are gathered at a central point and are signaled from there; when required, to specific locations in the subscriber access network, for example, to a distribution node where maintenance work is currently being carried out.Type: GrantFiled: September 27, 1999Date of Patent: October 23, 2007Assignee: Siemens AktiengesellschaftInventors: Svend Christensen, Ludwig Dirscherl, Ulrich Liefländer, Hans-Werner Rudolf, Franz Schmöller
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Patent number: 6795568Abstract: The present invention relates to a method and an apparatus capable of severing or damaging unwanted plants without using herbicides. The present invention relates in particular to an apparatus and a method for differentiating between different types of plants to allow identification of, and thus selective elimination or treatment of, individual plants. According to the present invention, the positioning of and the output power of at least one light generating means is controlled on the basis of information from an image recognition system which is capable of differentiating beween different plants.Type: GrantFiled: March 14, 2001Date of Patent: September 21, 2004Assignee: Torsana Laser Technologies A/SInventors: Svend Christensen, Joergen Schou, Torben Heisel
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Patent number: 6511617Abstract: An automated method and apparatus is provided to mold, cure and package soft contact lenses. A conveyor system transports an array of molds through a plurality of automated work stations. The front curve mold halves are partially filled with a polymerizable monomer or monomer mixture and assembled and clamped to displace any excess hydrogel from the mold cavity. The assembly is precured and then transported through a cure station using UV radiation to complete polymerization, The assemblies are then pried apart in an automated station, with any excess monomer adhering to the removed mold half. The newly molded lens is then hydrated and separated from the front curve mold half in a hydration station. Following hydration the array of lens is automatically deposited into a plurality of packages with a robotic transfer device having a plurality of figures which transfer the lenses.Type: GrantFiled: December 7, 1999Date of Patent: January 28, 2003Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Wallace Anthony Martin, Jonathan Patrick Adams, Finn Thrige Andersen, Stephen Robert Beaton, Svend Christensen, Allan G. Jensen, Ture Kindt-Larsen, Victor Lust, Craig William Walker, Daniel Tsu-Fang Wang
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Patent number: 6220845Abstract: An apparatus and method for partially curing a polymerizable monomer or monomer mixture to form a soft contact lens includes a transport device for transporting a plurality of contact lens molds to a precure station in a low oxygen environment, each contact lens mold including a first and second mold half with a polymerizable monomer or monomer mixture therebetween. A clamping member having a plurality of mold engagement members clamps a first contact lens mold half against a second contact lens mold half for a predetermined pressure and time. While the mold halves of the contact lens mold are clamped, the polymerizable monomer or monomer mixture is exposed to a radiant energy source for polymerizing the polymerizable monomer or monomer mixture contained in each contact lens mold.Type: GrantFiled: May 26, 1999Date of Patent: April 24, 2001Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Wallace Anthony Martin, Jonathan Patrick Adams, Kaj Bjerre, Svend Christensen, Ture Kindt-Larsen, Craig William Walker, Daniel Tsu-Fang Wang, Michael Francis Widman, Stephen Craig Pegram
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Patent number: 6071440Abstract: A contact lens production line pallet system transports contact lens mold materials throughout a facility for producing ophthalmic lenses. Specifically, the contact lens production line pallet system includes a pallet for carrying one or more contact lens mold assemblies throughout a contact lens production line, the pallet having one or more first recesses formed in a surface thereof for receiving either a first mold half or a complementary second mold half, the first and second mold halves when placed together constitute an individual contact lens mold assembly. A conveyor device for transporting the pallet from station to station throughout the production line facility is provided, as is a locating device formed in the pallet surface for enabling precise positioning of the pallet at one or more manufacturing stations in the production line facility.Type: GrantFiled: December 9, 1998Date of Patent: June 6, 2000Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Daniel Tsu-Fang Wang, Kaj Bjerre, Svend Christensen, Ture Kindt-Larsen, Wallace Anthony Martin, Craig William Walker, Michael Francis Widman
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Patent number: 6039899Abstract: An automated method and apparatus is provided to mold and cure soft contact lenses. A molding station injection molds first and second mold parts for the production of the lenses and these mold parts are transferred to an inert gas or low oxygen environment wherein a series of automated stations receive the mold parts, deposit a polymerizable hydrogel within the first mold part, assemble and clamp the first and second mold parts together, apply radiant energy for polymerizing the hydrogel and subsequently separate the mold parts.Type: GrantFiled: January 9, 1998Date of Patent: March 21, 2000Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Wallace Anthony Martin, Jonathan Patrick Adams, Finn Thrige Andersen, Stephen Robert Beaton, Svend Christensen, Allan G. Jensen, Ture Kindt-Larsen, Victor Lust, Craig William Walker, Daniel Tsu-Fang Wang
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Patent number: 5981618Abstract: An apparatus and method for partially curing a polymerizable monomer or monomer mixture to form a soft contact lens includes a transport device for transporting a plurality of contact lens molds to a precure station in a low oxygen environment, each contact lens mold including a first and second mold half with a polymerizable monomer or monomer mixture therebetween. A clamping member having a plurality of mold engagement members clamps a first contact lens mold half against a second contact lens mold half for a predetermined pressure and time. While the mold halves of the contact lens mold are clamped, the polymerizable monomer or monomer mixture is exposed to a radiant energy source for polymerizing the polymerizable monomer or monomer mixture contained in each contact lens mold.Type: GrantFiled: March 27, 1997Date of Patent: November 9, 1999Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Wallace Anthony Martin, Jonathan Patrick Adams, Kaj Bjerre, Svend Christensen, Ture Kindt-Larsen, Craig William Walker, Daniel Tsu-Fang Wang, Michael Francis Widman, Stephen Craig Pegram
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Patent number: 5965172Abstract: A contact lens production line pallet system transports contact lens mold materials throughout a facility for producing ophthalmic lenses. Specifically, the contact lens production line pallet system includes a pallet for carrying one or more contact lens mold assemblies throughout a contact lens production line, the pallet having one or more first recesses formed in a surface thereof for receiving either a first mold half or a complementary second mold half, the first and second mold halves when placed together constitute an individual contact lens mold assembly. A conveyor device for transporting the pallet from station to station throughout the production line facility is provided, as is a locating device formed in the pallet surface for enabling precise positioning of the pallet at one or more manufacturing stations in the production line facility.Type: GrantFiled: September 22, 1997Date of Patent: October 12, 1999Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Daniel Tsu-Fang Wang, Kaj Bjerre, Svend Christensen, Ture Kindt-Larsen, Wallace Anthony Martin, Craig William Walker, Michael Francis Widman
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Patent number: 5914074Abstract: An apparatus and method for curing a polymerizable monomer or monomer mixture to form a soft contact lens includes a transport device for transporting a plurality of contact lens molds to a precure station in a low oxygen environment, each contact lens mold including a first and second mold half with a polymerizable monomer or monomer mixture therebetween. A clamping member clamps a first contact lens mold half against a second contact lens mold half for a predetermined pressure and time. While the mold halves of the contact lens mold are clamped, the polymerizable monomer or monomer mixture is exposed to a radiant energy source for partially polymerizing the polymerizable monomer or monomer mixture contained in each contact lens mold.Type: GrantFiled: November 12, 1997Date of Patent: June 22, 1999Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Wallace Anthony Martin, Jonathan Patrick Adams, Kaj Bjerre, Svend Christensen, Ture Kindt-Larsen, Craig William Walker, Daniel Tsu-Fang Wang, Michael Francis Widman
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Patent number: 5855104Abstract: 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, thType: GrantFiled: March 3, 1997Date of Patent: January 5, 1999Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Mark Schlagel, Russell J. Edwards, Mary L. Dolan, Svend Christensen, Borge P. Gundersen, John M. Lepper, Daniel Tsu-Fang Wang, Richard W. Abrams, Thomas C. Ravin
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Patent number: 5836323Abstract: An automated means for hydrating a molded hydrophilic contact lens is provided in which a first robotic assembly removes a plurality of contact lens molds from a production line carrier, each of the lens molds having a contact lens adhered therein. The first robotic assembly transports the molds to a first staging area where the lens molds are sandwiched between a lens mold carrier and a top chamber plate to form a first hydration carrier. A first rotary transfer device then hands the first hydration carrier to a second robotic assembly which immerses the first hydration carrier in a hydration bath to hydrate the lens and to release the lens from the lens mold. While the lens is immersed in the hydration bath, each lens is transferred from its respective mold to a lens transfer means found within the top chamber plate.Type: GrantFiled: May 7, 1996Date of Patent: November 17, 1998Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Darren Scott Keene, Timothy Patrick Newton, Daniel Tsu-Fang Wang, David Dolan, Kiyoshi Imai, Katsuaki Yoshida, Svend Christensen, Finn Thrige Andersen, Ture Kindt-Larsen, Kaj Bjerre, Junichi Fukuchi, David Byram, Gary Hall
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Patent number: 5829222Abstract: 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, thType: GrantFiled: February 27, 1997Date of Patent: November 3, 1998Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Mark Schlagel, Russell J. Edwards, Mary L. Dolan, Svend Christensen, Borge P. Gundersen, John M. Lepper, Daniel Tsu-Fang Wang, Richard W. Abrams, Thomas C. Ravin
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Patent number: 5804107Abstract: An automated method and apparatus is provided to mold and cure soft contact lenses. At a first station, front curve mold halves are partially filled with a polymerizable monomer. At a second station, a surfactant coating may be applied to a flange on the front curve mold half to provide subsequent preferential adhesion of any excess hydrogel to a back curve mold half at the time the mold halves are separated. At a third station, the mold halves are assembled under vacuum, and clamped to displace any excess hydrogel from the mold cavity. This clamping step firmly seats the back curve mold half, severs any excess monomer from the monomer in the cavity, defines the lens edge, and seals the cavity in a vacuum. Following assembly of the mold halves, the assembly is transported to a precure station and reclamped, and the monomer is precured with actinic radiation, such as UV, to partially cure the monomer to a gel like consistency.Type: GrantFiled: June 10, 1994Date of Patent: September 8, 1998Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Wallace Anthony Martin, Jonathan Patrick Adams, Finn Thrige Andersen, Stephen Robert Beaton, Svend Christensen, Allan G. Jensen, Ture Kindt-Larsen, Victor Lust, Craig William Walker, Daniel Tsu-Fang Wang
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Patent number: 5762081Abstract: An automated means for hydrating a molded hydrophilic contact lens is provided in which a first robotic assembly removes a plurality of contact lens molds from a production line carrier, each of the lens molds having a contact lens adhered therein. The first robotic assembly transports the molds to a first staging area where the lens molds are sandwiched between a lens mold carrier and a top chamber plate to form a first hydration carrier. A first rotary transfer device then hands the first hydration carrier to a second robotic assembly which immerses the first hydration carrier in a hydration bath to hydrate the lens and to release the lens from the lens mold. While the lens is immersed in the hydration bath, each lens is transferred from its respective mold to a lens transfer means found within the top chamber plate.Type: GrantFiled: March 25, 1997Date of Patent: June 9, 1998Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Darren Scott Keene, Timothy Patrick Newton, Daniel Tsu-Fang Wang, David Dolan, Kiyoshi Imai, Katsuaki Yoshida, Svend Christensen, Finn Thrige Andersen, Ture Kindt-Larsen, Kaj Bjerre, Junichi Fukuchi, David Byram, Gary Hall
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Patent number: 5749205Abstract: 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 staring 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, thType: GrantFiled: June 5, 1995Date of Patent: May 12, 1998Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Russell James Edwards, Mary Louis Dolan, Svend Christensen, Borge Peter Gundersen, John Mark Lepper, Daniel Tsu-Fang Wang, Richard Wayne Abrams, Thomas Christian Ravn
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Patent number: 5744357Abstract: A contact lens production line pallet system transports contact lens mold materials throughout a facility for producing ophthalmic lenses. Specifically, the contact lens production line pallet system includes a pallet for carrying one or more contact lens mold assemblies throughout a contact lens production line, the pallet having one or more first recesses formed in a surface thereof for receiving either a first mold half or a complementary second mold half, the first and second mold halves when placed together constitute an individual contact lens mold assembly. A conveyor device for transporting the pallet from station to station throughout the production line facility is provided, as is a locating device formed in the pallet surface for enabling precise positioning of the pallet at one or more manufacturing stations in the production line facility.Type: GrantFiled: October 7, 1996Date of Patent: April 28, 1998Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Daniel Tsu-Fang Wang, Kaj Bjerre, Svend Christensen, Ture Kindt-Larsen, Wallace Anthony Martin, Craig William Walker, Michael Francis Widman
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Patent number: 5690866Abstract: An automated method for high speed production rates in the hydration of soft contact lenses. The method includes the use of robotic transfer equipment to transfer contact lens molds containing contact lenses to and from a hydration station and a flushing station.Type: GrantFiled: June 5, 1995Date of Patent: November 25, 1997Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Finn Thrige Andersen, Kaj Bjerre, Svend Christensen, Darren Scott Keene, Ture Kindt-Larsen, Timothy Patrick Newton, Daniel Tsu-Fang Wang, Michael Francis Widman
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Patent number: 5640980Abstract: An automated means for hydrating a molded hydrophilic contact lens is provided in which a first robotic assembly removes a plurality of contact lens molds from a production line carrier, each of the lens molds having a contact lens adhered therein. The first robotic assembly transports the molds to a first staging area where the lens molds are sandwiched between a lens mold carrier and a top chamber plate to form a first hydration carrier. A first rotary transfer device then hands the first hydration carrier to a second robotic assembly which immerses the first hydration carrier in a hydration bath to hydrate the lens and to release the lens from the lens mold. While the lens is immersed in the hydration bath, each lens is transferred from its respective mold to a lens transfer means found within the top chamber plate.Type: GrantFiled: May 1, 1995Date of Patent: June 24, 1997Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Darren Scott Keene, Timothy Patrick Newton, Daniel Tsu-Fang Wang, David Dolan, Kiyoshi Imai, Katsuaki Yoshida, Svend Christensen, Finn Thrige Andersen, Ture Kindt-Larsen, Kaj Bjerre
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Patent number: 5528878Abstract: 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, thType: GrantFiled: June 10, 1994Date of Patent: June 25, 1996Assignee: 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
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Patent number: 5476111Abstract: A device and method for high speed production rates in the hydration of soft contact lenses. Such device and method includes the use robotic transfer equipment to transfer contact lens molds containing contact lenses to and from a hydration station and a flushing station.Type: GrantFiled: June 10, 1994Date of Patent: December 19, 1995Assignee: Johnson & Johnson Vision Products, Inc.Inventors: Finn T. Andersen, Kaj Bjerre, Svend Christensen, Darren S. Keene, Ture Kindt-Larsen, Timothy P. Newton, Daniel T. Wang, Michael F. Widman