Patents by Inventor Bruce K. Campbell

Bruce K. Campbell 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: 10684220
    Abstract: A process of in-situ detection of hollow fiber formation includes immersing a plurality of individual glass fibers in an index-matching material. The index-matching material has a first refractive index that substantially matches a second refractive index of the glass fibers. The process also includes exposing the individual glass fibers to a light source during immersion in the index-matching material. The process further includes utilizing one or more optical components to collect optical data for the individual glass fibers during immersion in the index-matching material. The process also includes determining, based on the optical data, that a particular glass fiber of the plurality of individual glass fibers includes a hollow fiber.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 16, 2020
    Assignee: International Business Machines Corporation
    Inventors: Eric J. Campbell, Bruce J. Chamberlin, Sarah K. Czaplewski, Scott B. King, Joseph Kuczynski
  • Patent number: 10578551
    Abstract: A process of in-situ detection of hollow fiber formation includes immersing a plurality of individual glass fibers in an index-matching material. The index-matching material has a first refractive index that substantially matches a second refractive index of the glass fibers. The process also includes exposing the individual glass fibers to a light source during immersion in the index-matching material. The process further includes utilizing one or more optical components to collect optical data for the individual glass fibers during immersion in the index-matching material. The process also includes determining, based on the optical data, that a particular glass fiber of the plurality of individual glass fibers includes a hollow fiber.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: March 3, 2020
    Assignee: International Business Machines Corporation
    Inventors: Eric J. Campbell, Bruce J. Chamberlin, Sarah K. Czaplewski, Scott B. King, Joseph Kuczynski
  • Patent number: 6994819
    Abstract: An apparatus for rerounding plastic pipe includes a housing having a pipe passage extending therethrough. The housing has a moveable outer frame top positionable between an open position and a closed position to enclose a pipe to be rerounded. A pair of opposing jaws are positioned within the housing and on opposite sides of the pipe passage and have a generally symmetrical configuration with respect to one another. A drive mechanism is connected with respect to at least one of the jaws for compressing the jaws with respect to each other resulting in compression of the pipe to be rerounded.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: February 7, 2006
    Assignee: Gas Research Institute
    Inventors: William F. Rush, Jr., Stephen Reyes, Bruce K. Campbell
  • Publication number: 20040061259
    Abstract: An apparatus for rerounding plastic pipe includes a housing having a pipe passage extending therethrough. The housing has a moveable outer frame top positionable between an open position and a closed position to enclose a pipe to be rerounded. A pair of opposing jaws are positioned within the housing and on opposite sides of the pipe passage and have a generally symmetrical configuration with respect to one another. A drive mechanism is connected with respect to at least one of the jaws for compressing the jaws with respect to each other resulting in compression of the pipe to be rerounded.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 1, 2004
    Inventors: William F. Rush, Stephen Reyes, Bruce K. Campbell
  • Patent number: 5660202
    Abstract: A hot tap apparatus for insertion of a controllable device into an in-service pipeline comprising a housing adapted to be sealably secured to a pipe and enclose a portion of the pipe. The housing forms a chamber which is partitioned into an insertion chamber and a discharge chamber, the insertion chamber being disposed adjacent to an insertion end of the housing and the discharge chamber being disposed adjacent the discharge end of said housing. The insertion end of the housing is sealable. The apparatus further comprises a cutting apparatus for cutting an opening in the pipe sized to receive the controllable device disposed in the housing.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: August 26, 1997
    Assignee: Institute of Gas Technology
    Inventors: William F. Rush, Jr., Bruce K. Campbell, Kenneth C. Hardy, Lynn A. Sweetwood
  • Patent number: 5127267
    Abstract: A method for determining the location of a concealed pipe is disclosed. An identifiable acoustic signal is injected into the concealed pipe. The signal propagates along the interior length of the pipe. The signal is detected by an array of detectors positioned at varying distances from the pipe. The detected signal generates voltage outputs from the detectors to a signal processor. The "time-of-flight" of the acoustic signal from the point of generation to the point of detection is measured by the signal processor. The detector measuring the shortest "time-of-flight" is closest to the concealed pipe.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: July 7, 1992
    Assignee: Southern California Gas Company
    Inventors: James E. Huebler, Bruce K. Campbell