Patents by Inventor Christopher J. Hunt

Christopher J. Hunt 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: 10520957
    Abstract: A pressure regulating device including a valve body, an actuator assembly coupled to the valve body and including a diaphragm, a valve seat disposed in the valve body, a control assembly operatively connected to the diaphragm to move responsive to movement of the diaphragm, and a travel stop. The control assembly includes a control element that is movable, relative to the valve seat, between an open position, wherein the control element is spaced from the valve seat, and a closed position, wherein the control element sealingly engages the valve seat. The travel stop is configured to engage the control element to stop movement of the control element upon reaching the open position. The travel stop is adjustable to change the open position of the control element, such that a wide open flow capacity of the pressure regulating device can be adjusted.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: December 31, 2019
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Jeff Welch, II, Jake Buford, Matthew D. Reynolds, Christopher J. Hunt
  • Patent number: 10254772
    Abstract: A balanced port pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway, an orifice being disposed between the fluid inlet and the fluid outlet. A valve seat is disposed within the fluid passageway. A valve plug is also disposed within the fluid passageway. A piston is disposed within the valve body, the piston separating the fluid passageway from a balancing chamber. A sleeve extends away from the piston, the sleeve forming a balancing passage that fluidly connects the fluid passageway with the balancing chamber. The sleeve includes an open end that terminates within the orifice. By terminating within the orifice, the open end of the sleeve generates boost only towards the end of a valve opening cycle when the valve plug approaches a fully open position, which is where boost is most needed.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: April 9, 2019
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventor: Christopher J. Hunt
  • Patent number: 10046501
    Abstract: Techniques are provided for polymer extrusion. A polyolefin extrusion system may include an extrusion gear pump configured to receive a narrow molecular weight distribution polyolefin from a polyolefin manufacturing system. The polyolefin extrusion system may also include a motor of the extrusion gear pump configured to drive the extrusion gear pump, a pressure sensor configured to generate a pressure signal indicative of a suction pressure into the extrusion gear pump, an automation controller configured to generate an output signal based on the pressure signal, and a variable speed drive configured to control operation of the motor.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 14, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Chih-An Hwang, Keith A. Bravenec, Christopher J. Hunt
  • Publication number: 20170108881
    Abstract: A pressure regulating device including a valve body, an actuator assembly coupled to the valve body and including a diaphragm, a valve seat disposed in the valve body, a control assembly operatively connected to the diaphragm to move responsive to movement of the diaphragm, and a travel stop. The control assembly includes a control element that is movable, relative to the valve seat, between an open position, wherein the control element is spaced from the valve seat, and a closed position, wherein the control element sealingly engages the valve seat. The travel stop is configured to engage the control element to stop movement of the control element upon reaching the open position. The travel stop is adjustable to change the open position of the control element, such that a wide open flow capacity of the pressure regulating device can be adjusted.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Jeff Welch, II, Jake Buford, Matthew D. Reynolds, Christopher J. Hunt
  • Publication number: 20170102096
    Abstract: A balanced port pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway, an orifice being disposed between the fluid inlet and the fluid outlet. A valve seat is disposed within the fluid passageway. A valve plug is also disposed within the fluid passageway. A piston is disposed within the valve body, the piston separating the fluid passageway from a balancing chamber. A sleeve extends away from the piston, the sleeve forming a balancing passage that fluidly connects the fluid passageway with the balancing chamber. The sleeve includes an open end that terminates within the orifice. By terminating within the orifice, the open end of the sleeve generates boost only towards the end of a valve opening cycle when the valve plug approaches a fully open position, which is where boost is most needed.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 13, 2017
    Inventor: Christopher J. Hunt
  • Publication number: 20140264991
    Abstract: Techniques are provided for polymer extrusion. A polyolefin extrusion system may include an extrusion gear pump configured to receive a narrow molecular weight distribution polyolefin from a polyolefin manufacturing system. The polyolefin extrusion system may also include a motor of the extrusion gear pump configured to drive the extrusion gear pump, a pressure sensor configured to generate a pressure signal indicative of a suction pressure into the extrusion gear pump, an automation controller configured to generate an output signal based on the pressure signal, and a variable speed drive configured to control operation of the motor.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Chih-An Hwang, Keith A. Bravenec, Christopher J. Hunt
  • Publication number: 20040042843
    Abstract: A caulking gun includes a cartridge-holding component, a trigger assembly, a telescoping extension assembly, and a telescoping actuator rod assembly. The telescoping extension assembly includes an outer tube, an inner tube extending telescopingly within the outer tube, and a compression fitting on the outer tube that is adapted to function as means for securing the inner tube in a desired position relative to the outer tube. The telescoping actuator rod assembly includes a tubular member, a rod extending telescopingly within the tubular member, and a plurality of locking components at spaced apart locations on the tubular member that are adapted to be screwed into engagement of the rod for purposes of securing the rod in a desired position relative to the tube. The outer and inner tubes of the telescoping extension assembly define a plurality of openings at spaced apart locations on the outer and inner tubes that enable access by a user to the plurality of locking components for length-adjustment purposes.
    Type: Application
    Filed: August 28, 2002
    Publication date: March 4, 2004
    Inventors: Christopher J. Hunt, Juan F. Salas
  • Patent number: 5539881
    Abstract: In a telecommunications management network including a network element provisioned as a so-called Directory Services Network Element (DSNE) and at least one sub-network intended to include one or more network elements, automatic registration network element identity information is realized by employing a routing exchange protocol to dynamically maintain identity information of network elements reachable within the network, enhancing the routing exchange protocol interface to automatically supply an indication of detection of a newly reachable network element to an applications layer protocol, and using the indentity information of a newly reachable network element in the applications layer protocol of the DSNE to establish communications with the newly reachable network element. Then, the newly reachable network element supplies additional identity information (e.g., its name, network address and the like) to the DSNE.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: July 23, 1996
    Assignee: AT&T Corp.
    Inventors: Christopher J. Hunt, Christopher S. Welles
  • Patent number: 5537547
    Abstract: In a telecommunications management network including a network element provisioned as a so-called Directory Services Network Element (DSNE) and at least one sub-network intended to include one or more network elements, the DSNE automatically distributes the identity information of all network elements in a sub-network to all the network elements in that sub-network. Specifically, the DSNE automatically distributes all the identity information for all network elements within a sub-network to a newly registered network element and also supplies the identity information for the newly registered network element to all the other network elements within the sub-network. Since, each sub-network can be defined as a set of network elements that require significant communications with each other, distribution of the identity information for all the network elements in the sub-network to all the network elements in that sub-network significantly reduces the number of queries made to the DSNE.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: July 16, 1996
    Assignee: AT&T Corp.
    Inventors: Douglas W. Chan, Christopher J. Hunt, C. Daniel Vanevic, Christopher S. Welles
  • Patent number: 5335229
    Abstract: Development cost and time required to support new transmission interfaces is reduced in a digital communication system including a network element provisioned as a Directory Services Network Element (DSNE) by partitioning the telecommunications management network in such a manner that permits the integration of the DSNE with other network elements, or portions thereof, to present an external appearance of it being a single, integrated network element from an OAM&P perspective. This is realized by provisioning the integrated network element, or portions thereof, such that it can only provide its identity information to the DSNE and can only receive the DSNE identity information. The DSNE will not provide the identity information of the integrated network element, or portions thereof, to any network elements in a sub-network interfaced to the integrated network element.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: August 2, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Christopher J. Hunt, C. Daniel Vanevic
  • Patent number: 5303235
    Abstract: In a telecommunications management network indications of newly reachable network elements and indications that existing network elements cease to be reachable are maintained automatically and the need for manually inputting such information is eliminated by employing a routing exchange protocol to dynamically maintain identity information of network elements reachable within the network, and by enhancing the routing exchange protocol interface to automatically supply an indication that a newly reachable network element has been detected or an indication that an existing network element has ceased to be reachable to an applications layer protocol.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: April 12, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Douglas W. Chan, Christopher J. Hunt, C. Daniel Vanevic, Christopher S. Welles
  • Patent number: 4758790
    Abstract: An adaptor for use in conjunction with an internal combustion engine having a capacitor discharge ignition system provides a substitute high voltage pulse coincident with the high tension pulse of the engine ignition system but having a period which is sufficiently prolonged to enable a conventional engine analyzer to be used to measure the usual engine parameters.
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: July 19, 1988
    Assignee: FKI Crypton Limited
    Inventor: Christopher J. Hunt
  • Patent number: 4742306
    Abstract: An apparatus for generating a synchronizing signal for a selected cylinder of a multi-cylinder engine having a double ended coil ignition system, including a comparator for identifying a real ignition pulse on the ignition device associated with the selected cylinder and a discriminator for identifying a real ignition signal on the coil energizing that ignition device and circuitry to produce a synchronizing signal only when the two coincide.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: May 3, 1988
    Assignee: FKI Crypton Limited
    Inventors: Geoffrey J. Everett, Christopher J. Hunt
  • Patent number: 4708121
    Abstract: A method or apparatus whereby the primary windings of a multi-coil ignition system may be connected to a common terminal to provide a composite signal identifying the start of each cylinder ignition sequence. Means may also be provided for inhibiting the generation of ignition pulses by selected coils.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: November 24, 1987
    Assignee: FKI Crypton Limited
    Inventors: Geoffrey J. Everett, Christopher J. Hunt
  • Patent number: 4396888
    Abstract: An engine analyzer, to analyze a parameter of a spark ignition internal combustion engine, has a separate probe for connection to each spark plug or lead feeding only that spark plug, so that engines in which ignition pulses pass to the plugs only along separate leads, can be analyzed.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: August 2, 1983
    Assignee: TI Crypton Limited
    Inventors: Geoffrey J. Everett, Christopher J. Hunt
  • Patent number: 4379263
    Abstract: An engine analyzer, for analyzing ignition voltage or current signals in an engine of the kind in which each spark plug is fed with a succession of pulses, alternate pulses producing real sparks to ignite the petrol/air mixture, the other pulses producing wasted sparks at a point of the engine operating cycle remote from ignition, the analyzer including circuitry to pass the real spark pulse and inhibit passage of the wasted spark pulses.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: April 5, 1983
    Assignee: TI Crypton Limited
    Inventors: Geoffrey J. Everett, Christopher J. Hunt
  • Patent number: 4366436
    Abstract: An engine analyzer including a plurality of probes each connectable to one component of a different pair from a plurality of pairs of engine components, each pair comprising a spark plug and a lead connected direct to said spark plug, in which each probe will emit a succession of pulses during use, some or all of the pulses being of either one polarity or of the opposite polarity, wherein the invention comprises means to process said pulses and to emit coincident pulses all of one predetermined polarity, irrespective of the polarity of the pulses from the probe.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: December 28, 1982
    Assignee: TI Crypton Limited
    Inventors: Geoffrey J. Everett, Christopher J. Hunt