Patents by Inventor Robert J. Andrews

Robert J. Andrews 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: 8258738
    Abstract: A low cost motor starter is shown having a PTC resistor 12 serially connected to a triac 14 and a bias resistor in turn adapted to be connected to the start winding of a single phase motor. A reed relay 16 having a sense coil 16a serially connected to the main winding in one preferred embodiment and in parallel with the main and start windings in a second preferred embodiment, is magnetically coupled to reed contacts 16b, 16c. Reed contact 16b is connected to a location intermediate the PTC resistor 12 and the triac 14 while reed contact 16c is connected to the gate of the triac. A gate signal phase shifting network comprising capacitor C1-R2 is also connected to reed contact 16c and the gate.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: September 4, 2012
    Assignee: Sensata Technologies Massachusetts, Inc.
    Inventors: Robert J. Andrews, Jr., Russell P. Brodeur, Kevin J. Dropps
  • Publication number: 20100134063
    Abstract: A low cost motor starter is shown having a PTC resistor 12 serially connected to a triac 14 and a bias resistor in turn adapted to be connected to the start winding of a single phase motor. A reed relay 16 having a sense coil 16a serially connected to the main winding in one preferred embodiment and in parallel with the main and start windings in a second preferred embodiment, is magnetically coupled to reed contacts 16b, 16c. Reed contact 16b is connected to a location intermediate the PTC resistor 12 and the triac 14 while reed contact 16c is connected to the gate of the triac. A gate signal phase shifting network comprising capacitor C1-R2 is also connected to reed contact 16c and the gate.
    Type: Application
    Filed: November 3, 2009
    Publication date: June 3, 2010
    Inventors: Robert J. Andrews, JR., Russell P. Brodeur, Kevin J. Dropps
  • Patent number: 7653277
    Abstract: An optical fiber cable having a locating element and extending from a distribution enclosure to a premise is provided. The optic fiber cable includes a core having at least one optical fiber transmission medium disposed within a tubular member that has a jacket system disposed thereabout. A longitudinally extending detectable element is provided that does not function as a communications cable and that is detachably connected to said tubular member by the jacket system which is also disposed about the detectable element so as to define a web between the tubular member and the detectable element. The detectable element terminates before at least one of the distribution enclosure or the premise. The web defines a notch between the tubular member and the detectable element which serves as a shear plane to facilitate the propagation of a tear between the tubular member and the detectable element.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 26, 2010
    Assignee: Sumitomo Electric Lightwave Corp.
    Inventors: Robert J. Andrews, Scott M. Chastain, Stephen R. Stokes, George A. Mackie
  • Publication number: 20080253723
    Abstract: A ribbon drop cable is provided. The ribbon drop cable includes a ribbon band of a plurality of communication medium. The ribbon band having a top flattened portion, a bottom flattened portion, a first side and a second side. At least one dielectric strength rod is disposed proximal to either the first side or second side of the ribbon band. The ribbon drop cable further includes a sheath which surrounds the ribbon band and the strength elements. The sheath is configured to hold the strength elements and the ribbon band in alignment.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 16, 2008
    Inventors: Stephen R. Stokes, Robert J. Andrews, Patrick S. Van Vickle
  • Patent number: 7313304
    Abstract: The present invention provides a dielectric optical fiber cable which is capable of being remotely detected while buried. Specifically, this invention incorporates a detectable and easily removable locating element which is attached to the optical fiber cable by a web defined by the jacket extending over both the optical fiber cable and the locating element. The web allows for the locating strand to be easily removed once separation of the locating element from the optical fiber cable is initiated. The web is designed to allow the initial tear to propagate into a precise longitudinal tear along a predetermined length of the optical fiber cable.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: December 25, 2007
    Assignee: Sumitomo Electric Lightwave Corp.
    Inventors: Robert J. Andrews, Scott M. Chastain, Stephen R. Stokes, George A. Mackie
  • Patent number: 5139105
    Abstract: A vehicle has at least two pairs of ground engaging wheels, which vehicle can alternatively be steered with two or four wheels, the vehicle comprising a chassis having first and second pairs of ground engaging wheels which are movable to effect steering of the vehicle, the wheels of each pair being mounted at opposite sides of the chassis and the second pair of wheels being lockable in a position such that simple steering is effected solely by the first pair of wheels, the first pair of wheels being movable to effect steering by a first fluid actuator to which fluid is fed from a steering valve, and the second pair of wheels being movable by a second fluid actuator to which fluid is fed via a steering mode selector valve from the steering valve means, the steering mode selector valve having a first operating condition when fluid from the steering valve is not fed to the second fluid actuator whereby simple steering is effected solely by the first pair of wheels and a second operating condition wherein fluid f
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: August 18, 1992
    Assignee: J. C. Bamford Excavators Limited
    Inventors: Roger A. Frost, Robert J. Andrew, Simon J. Langford
  • Patent number: 4917204
    Abstract: A materials handling vehicle having two pairs of ground wheels movable to effect steering of the vehicle, the wheels of each pair being mounted at opposite sides of the vehicle chassis, at least one pair of wheels being lockable in a position so that steering is effected solely by the other pair of wheels wherein sensor means are provided associated with each of the two pairs of wheels to provide an electrical signal to a control means when the respective wheels are in an aligned position in which their axes of rotation are perpendicular to a longitudinal axis of the vehicle, the control means including a selector means comprising electrical switch means to enable an operator to select simple steering mode in which only one of the pairs of wheels are movable to effect steering, or a compound steering mode in which both of the pairs of wheels are movable to effect steering, the control means further comprising means to maintain the selected steering mode until an alternative steering mode is selected by operat
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: April 17, 1990
    Assignee: J. C. Bamford Excavators Limited
    Inventors: Robert J. Andrew, Roger A. Frost, Paul F. Herbert