Patents by Inventor Brian G. Risch

Brian G. Risch 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: 10451498
    Abstract: A cable includes a longitudinal structural element including at least one of an electrical conductor and an optical conductor, and a strain sensor arranged within a bending neutral region of the cable and mechanically coupled with the longitudinal structural element. The strain sensor includes an optical fiber coated with at least one coating layer, a release layer surrounding the coating layer, and a protective layer surrounding the release layer. The release layer includes a material selected from a silicone polymer, a fluoropolymer mixture or an extruded polymer containing a slip agent.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 22, 2019
    Assignee: PRYSMIAN S.p.A.
    Inventor: Brian G. Risch
  • Publication number: 20190250347
    Abstract: An optical-fiber ribbon having excellent flexibility, strength, and robustness includes optical fibers having a sacrificial, outer release layer that facilitates separation of an optical fiber from the optical-fiber ribbon without damaging the optical fiber's glass core, glass cladding, primary coating, secondary coating, and ink layer, if present.
    Type: Application
    Filed: January 14, 2019
    Publication date: August 15, 2019
    Inventors: Ehsan Fallahmohammadi, Clint Nicholaus Anderson, Brian G. Risch, Andrea Terry, John R. Sach, Jeffrey Scott Barker
  • Publication number: 20190056278
    Abstract: A cable includes a longitudinal structural element including at least one of an electrical conductor and an optical conductor, and a strain sensor arranged within a bending neutral region of the cable and mechanically coupled with the longitudinal structural element. The strain sensor includes an optical fiber coated with at least one coating layer, a release layer surrounding the coating layer, and a protective layer surrounding the release layer. The release layer includes a material selected from a silicone polymer, a fluoropolymer mixture or an extruded polymer containing a slip agent.
    Type: Application
    Filed: September 10, 2015
    Publication date: February 21, 2019
    Applicant: PRYSMIAN S.p.A.
    Inventor: Brian G. RISCH
  • Patent number: 10185105
    Abstract: The flexible optical-fiber ribbon can be reversibly adapted to both planar and non-planar shapes (e.g., packed via folding or rolling) without damaging the optical-fiber ribbon or its constituent optical fibers.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: January 22, 2019
    Assignee: Prysmian S.p.A.
    Inventors: Brian G. Risch, Erin Jean Bowman
  • Patent number: 9915799
    Abstract: The present invention relates to central loose optical-fiber cables. An exemplary optical-fiber cable includes a central buffer tube that encloses loose optical fibers. Stranded strength yarns surround the central buffer tube and the optical fibers positioned within the central buffer tube's annular space, and a cable jacket surrounds the stranded strength yarns.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: March 13, 2018
    Assignee: Prysmian S.p.A.
    Inventors: Brian G. Risch, Denise Collado
  • Publication number: 20180031792
    Abstract: The flexible optical-fiber ribbon can be reversibly adapted to both planar and non-planar shapes (e.g., packed via folding or rolling) without damaging the optical-fiber ribbon or its constituent optical fibers.
    Type: Application
    Filed: July 25, 2017
    Publication date: February 1, 2018
    Inventors: Brian G. Risch, Erin Jean Bowman
  • Publication number: 20170235069
    Abstract: The present invention relates to central loose optical-fiber cables. An exemplary optical-fiber cable includes a central buffer tube that encloses loose optical fibers. Stranded strength yarns surround the central buffer tube and the optical fibers positioned within the central buffer tube's annular space, and a cable jacket surrounds the stranded strength yarns.
    Type: Application
    Filed: October 14, 2014
    Publication date: August 17, 2017
    Inventors: Brian G. Risch, Denise Collado
  • Patent number: 9459428
    Abstract: Disclosed are buffer tubes of various colors having reduced stress whitening while retaining compliance with standard color requirements. In this regard, each buffer tube includes a polymeric tube that typically has a small amount of titanium dioxide. Each buffer tube typically demonstrates color compliance with the EIA Standard EIA-359-A.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: October 4, 2016
    Assignee: Draka Comteq, B.V.
    Inventor: Brian G. Risch
  • Patent number: 9360647
    Abstract: Disclosed is a novel central-tube cable with high-conductivity conductors. The novel central-tube cable according to the present invention yields a fiber optic cable with a smaller diameter than found in stranded-tube-cable designs. The central-tube cable features (i) a buffer tube containing optical conductors, (ii) radial strength members, and (iii) high-conductivity conductors coated with a dielectric material, such as polypropylene. The dielectric coating helps to prevent the high-conductivity conductors from shorting.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: June 7, 2016
    Assignee: Draka Comteq, B.V.
    Inventors: James Leonard Ryan, Denise Matthews, Brian G. Risch, Frank Edwards Davidson
  • Patent number: 9201204
    Abstract: An optical-fiber interconnect cable includes one or more optical fibers and one or more electrical conductors surrounded by an outer jacket. The optical fibers, such as multimode optical fibers, are typically enclosed within a flexible polymeric tube to form a flexible subunit.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 1, 2015
    Assignee: Draka Comteq, B.V.
    Inventors: Brian G. Risch, John C. Rosko, Olivier Tatat
  • Patent number: 9188754
    Abstract: A method for manufacturing an optical-fiber buffer tube uses a prewetting agent possessing excellent surface affinity, wetting, and interfacial adhesion with optical-fiber coatings. The prewetting agent does not pool within or leak from the resulting buffer tubes during storage or vertical installation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 17, 2015
    Assignee: Draka Comteq, B.V.
    Inventors: Brian G. Risch, Denise Lorraine Collado, Don Parris
  • Patent number: 8824845
    Abstract: Disclosed are buffer tubes of various colors having reduced stress whitening while retaining compliance with standard color requirements. In this regard, each buffer tube includes a polymeric tube that typically has a small amount of titanium dioxide. Each buffer tube typically demonstrates color compliance with the EIA Standard EIA-359-A.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 2, 2014
    Assignee: Draka Comteq, B.V.
    Inventor: Brian G. Risch
  • Patent number: 8625947
    Abstract: The present invention relates to flame-retardant fiber optic cables. The fiber optic cables include reinforcing materials that generate low smoke levels and exhibit improved performance during burn testing. The fiber optic cables are capable of meeting burn testing requirements without employing expensive, high-performance cable jacketing and buffering compounds.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: January 7, 2014
    Assignee: Draka Comteq, B.V.
    Inventors: Raymond G. Lovie, Brian G. Risch
  • Publication number: 20120213483
    Abstract: An optical-fiber interconnect cable includes one or more optical fibers and one or more electrical conductors surrounded by an outer jacket. The optical fibers, such a multimode optical fibers, are typically enclosed within a flexible polymeric tube to form a flexible subunit.
    Type: Application
    Filed: February 21, 2012
    Publication date: August 23, 2012
    Applicant: DRAKA COMTEQ B.V.
    Inventors: Brian G. Risch, John C. Rosko, Olivier Tatat
  • Publication number: 20110033660
    Abstract: An adhesive tape has an adhesive material including at least 28% vinyl acetate by weight disposed on a basefilm at a substantially uniform thickness of up to 18 microns. A method of fabricating an adhesive tape includes depositing an adhesive material including at least 28% vinyl acetate by weight on a basefilim at a substantially uniform thickness of up to 18 microns.
    Type: Application
    Filed: April 18, 2008
    Publication date: February 10, 2011
    Inventors: Yi Feng, Sterling Chaffins, Emmet Whittaker, Veronica A. Nelson, Brian G. Risch
  • Publication number: 20110026889
    Abstract: Disclosed are tight-buffered and semi-tight-buffered optical fiber units. The optical fiber unit includes an optical fiber that is surrounded by a polymeric buffering layer to define a fiber-buffer interface. The buffering layer includes an aliphatic amide slip agent in an amount sufficient for at least some of the aliphatic amide slip agent to migrate to the buffer-fiber interface to thereby promote easy stripping of the buffering layer. For example, at least about 15 centimeters of the polymeric buffering layer can be removed from the optical fiber in a single operation using a strip force of less than about 10 N.
    Type: Application
    Filed: July 26, 2010
    Publication date: February 3, 2011
    Applicant: DRAKA COMTEQ B.V.
    Inventors: Brian G. Risch, Timo Tapio Perttunen
  • Patent number: 7801004
    Abstract: A series of marks on an optical disc are sampled to yield a series of data pulses. The marks are at least substantially angularly equidistant to one another on the optical disc. A function is performed on the series of data pulses to yield an error-corrected series of data pulses. The function is one of: frequency domain filtering, signal averaging, and signal integration.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: September 21, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian G. Risch, William B. Connors
  • Publication number: 20100202741
    Abstract: Disclosed is a novel central-tube cable with high-conductivity conductors. The novel central-tube cable according to the present invention yields a fiber optic cable with a smaller diameter than found in stranded-tube-cable designs. The central-tube cable features (i) a buffer tube containing optical conductors, (ii) radial strength members, and (iii) high-conductivity conductors coated with a dielectric material, such as polypropylene. The dielectric coating helps to prevent the high-conductivity conductors from shorting.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 12, 2010
    Applicant: DRAKA COMTEQ B.V.
    Inventors: James Leonard Ryan, Denise Matthews, Brian G. Risch, Frank Edwards Davidson
  • Patent number: 7655275
    Abstract: A method of controlling flow includes treating a region of a surface to have a non-wettable surface characteristic or a wettable surface characteristic in the region.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: February 2, 2010
    Assignee: Hewlett-Packard Delopment Company, L.P.
    Inventors: Curtis L. Nelson, Brian G. Risch, Charles C. Haluzak, Christopher C. Aschoff
  • Patent number: 7011774
    Abstract: A process for producing an optical fiber cable composite structural component, such as reinforcing members, buffer tubes, filler rods, jackets, and slotted cores, is disclosed. The composite structural components are produced by co-extruding a thermotropic liquid crystalline polymer (TLCP) and a thermoplastic matrix material into the composite structural component so that TLCP reinforcing fibrils are dispersed in the thermoplastic matrix material. The TLCP reinforcing fibrils undergo a high level of process induced orientation, are provided with a high aspect ratio, and small diameters. The composite structural component has a high modulus. The TLCP reinforcing fibrils may be made continuous or discontinuous.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: March 14, 2006
    Assignee: Draka Comteq BV
    Inventor: Brian G. Risch