Patents by Inventor Daniel P. Barrows

Daniel P. Barrows 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: 7935280
    Abstract: An apparatus and method is provided for injection molding an ophthalmic lens mold section having an optical surface and a non-optical surface opposite the optical surface. The apparatus includes a non-optical tool assembly for forming the non-optical surface of the ophthalmic lens mold section. An optical tool assembly is in opposed relation to the non-optical tool assembly and together therewith forms a mold cavity for forming the ophthalmic lens mold section. In the preferred embodiment, the optical tool assembly includes a rotatably mounted core member and an optical insert removably secured the core member. The optical insert has an optical molding surface for forming an optical surface of the ophthalmic lens mold section opposite the non-optical surface thereof. A locking mechanism having, in a preferred embodiment, a locking pin selectively movable between a first position wherein the pin allows rotation of the core member and a second position wherein the pin prevents the core member from rotation.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: May 3, 2011
    Inventors: Bruce E. Lawton, Daniel P. Barrows
  • Publication number: 20090289383
    Abstract: An apparatus and method is provided for injection molding an ophthalmic lens mold section having an optical surface and a non-optical surface opposite the optical surface. The apparatus includes a non-optical tool assembly for forming the non-optical surface of the ophthalmic lens mold section. An optical tool assembly is in opposed relation to the non-optical tool assembly and together therewith forms a mold cavity for forming the ophthalmic lens mold section. In the preferred embodiment, the optical tool assembly includes a rotatably mounted core member and an optical insert removably secured the core member. The optical insert has an optical molding surface for forming an optical surface of the ophthalmic lens mold section opposite the non-optical surface thereof. A locking mechanism having, in a preferred embodiment, a locking pin selectively movable between a first position wherein the pin allows rotation of the core member and a second position wherein the pin prevents the core member from rotation.
    Type: Application
    Filed: July 30, 2009
    Publication date: November 26, 2009
    Inventors: Bruce E. Lawton, Daniel P. Barrows
  • Patent number: 7585167
    Abstract: An apparatus and method is provided for injection molding an ophthalmic lens mold section having an optical surface and a non-optical surface opposite the optical surface. The apparatus includes a non-optical tool assembly for forming the non-optical surface of the ophthalmic lens mold section. An optical tool assembly is in opposed relation to the non-optical tool assembly and together therewith forms a mold cavity for forming the ophthalmic lens mold section. In the preferred embodiment, the optical tool assembly includes a rotatably mounted core member and an optical insert removably secured the core member. The optical insert has an optical molding surface for forming an optical surface of the ophthalmic lens mold section opposite the non-optical surface thereof. A locking mechanism having, in a preferred embodiment, a locking pin selectively movable between a first position wherein the pin allows rotation of the core member and a second position wherein the pin prevents the core member from rotation.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: September 8, 2009
    Assignee: Bausch + Lomb Incorporated
    Inventors: Bruce E. Lawton, Daniel P. Barrows
  • Publication number: 20090127725
    Abstract: Systems and methods for making intraocular lenses (IOLs) are disclosed. The system for making an intraocular lens comprises a paddle core comprising at least a portion of a channel, and a two-cavity mold frame constructed and arranged to support the paddle core. A method of making an IOL is also provided comprising inserting the paddle core within a two-cavity mold frame, injecting a lens forming material into the two-cavity mold frame through the channel of the paddle core, and curing the lens forming material.
    Type: Application
    Filed: November 21, 2007
    Publication date: May 21, 2009
    Inventors: Graham W. Biddle, Anita M. Graney, Daniel P. Barrows
  • Publication number: 20090127726
    Abstract: Systems and methods for molding an intraocular lens (IOL) are disclosed. The system for making an intraocular lens comprises a mold insert and a spacer adapted to be positioned between the first and second portions of the mold insert. The method of making a dual-element intraocular lens comprises providing a mold insert including a spacer.
    Type: Application
    Filed: November 21, 2007
    Publication date: May 21, 2009
    Inventors: John C. Spalding, Daniel P. Barrows
  • Publication number: 20090121370
    Abstract: A mold assembly for the manufacture of at least one ophthalmic device used in or on the eye is disclosed, the mold assembly comprising a mateable pair of mold parts wherein at least one of the mold parts is made from a polymeric resin comprising a polymer backbone and one or more pendent groups having peroxide functionality and covalently linked to the polymer backbone.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 14, 2009
    Applicant: Bausch & Lomb Incorporated
    Inventors: Daniel P. Barrows, Edward A. Vaquero
  • Publication number: 20090112222
    Abstract: An apparatus for inserting an intraocular lens through a small incision into an eye is disclosed comprising a hollow tube including an interior wall defining a hollow space through which an intraocular lens may be passed and an outlet through which the intraocular lens may be passed from the hollow space into the eye, wherein at least the hollow tube of the apparatus is obtained from at least a polymeric resin comprising a polymer backbone and one or more pendent groups having peroxide functionality and covalently linked to the polymer backbone.
    Type: Application
    Filed: October 25, 2007
    Publication date: April 30, 2009
    Applicant: BAUSCH & LOMB INCORPORATED
    Inventors: Daniel P. Barrows, Edward A. Vaquero