Patents by Inventor David Stephenson

David Stephenson 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).

  • Publication number: 20210085819
    Abstract: Antimicrobial material which is a composite of a matrix component comprising a flexible hydrophilic polymer foam or fiber matrix comprising two matrix faces providing a release face and a reverse face or two release faces, and therebetween a structural matrix framework defining a network of cells having a cell network surface and therein a network of pores or cell openings, and a powder charge component comprising antimicrobial additive or wound care additive, wherein said powder charge is comprised at one said release face or both said faces and/or within said cell network wherein said composite is an assembly of preformed matrix component and powder charge component; and asymmetric material which is asymmetric having regard to distribution of said powder charge therein; and material wherein said power charge comprises flowing agent and/or bulking agent and/or binder and wherein said additive and/or flowing agent is co-located with said bulking agent and/or said binder; devices comprising said composite, met
    Type: Application
    Filed: July 12, 2018
    Publication date: March 25, 2021
    Inventors: Amy Brewster, Robert Crump, Helene Anne Lecomte, David Stephenson, Matthew Wray
  • Patent number: 10907439
    Abstract: A flotation device for a wellbore tubular has a flotation disk having a tapered exterior profile. A maximum external diameter of the flotation disk is such to enable free longitudinal movement within the wellbore tubular. A plurality of locking segments each has a tapered interior profile cooperatively engageable with the tapered exterior profile. Each locking segment has gripping elements on an exterior surface thereof to engage an inner wall of the wellbore tubular. The tapered exterior profile and the tapered interior profile cooperate to expand a diameter of the locking segments as profile engagement increases.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: February 2, 2021
    Assignee: Deep Casing Tools, Ltd.
    Inventors: David Stephenson, Tomasz Jozef Walerianczyk
  • Publication number: 20200376577
    Abstract: A thread tap includes a shaft and teeth. The shaft includes helical passages from the threading end to the base end of the shaft. Each passage opens through an aperture in the threading end. A second tap includes a cap and the shaft includes an axially extending passage. The cap is coupled to the threading end and at least partially defines apertures in fluid communication with the passage and the exterior of the tap. A third tap includes teeth spaced apart by a plurality of linear flutes. The shaft includes a central passage and a plurality of flute passages. Each flute passage extends radially outward from a common location in the central passage to a corresponding one of the flutes. The central passage is closed to a terminal end of the threading end.
    Type: Application
    Filed: August 17, 2020
    Publication date: December 3, 2020
    Applicant: Ford Motor Company
    Inventors: Michael Habel, Ethan Hughey, Shibu Philipose, David Stephenson
  • Patent number: 10773323
    Abstract: A thread tap includes a shaft and teeth. The shaft includes helical passages from the threading end to the base end of the shaft. Each passage opens through an aperture in the threading end. A second tap includes a cap and the shaft includes an axially extending passage. The cap is coupled to the threading end and at least partially defines apertures in fluid communication with the passage and the exterior of the tap. A third tap includes teeth spaced apart by a plurality of linear flutes. The shaft includes a central passage and a plurality of flute passages. Each flute passage extends radially outward from a common location in the central passage to a corresponding one of the flutes. The central passage is closed to a terminal end of the threading end.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 15, 2020
    Assignee: Ford Motor Company
    Inventors: Michael Habel, Ethan Hughey, Shibu Philipose, David Stephenson
  • Patent number: 10766080
    Abstract: A cutting tool and method of manufacturing a tool including determining desired flowrates to cutting edges. The method includes calculating pressure drop and passage dimensions for each of an nth-number of passages to the cutting edges based on In=(Pn*Ann)/(?n*Ln), wherein In is nth-passage flow rate, Pn is nth-passage pressure drop, Ann is nth-passage cross-sectional area raised to a power n, the power n being equal to 1 or 0.5, ?n is nth-passage resistivity, and Ln is nth-passage length. The method includes forming the nth-passages in the tool open to each cutting edge based on the nth-passage dimensions.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: September 8, 2020
    Assignee: Ford Motor Company
    Inventors: Ethan Hughey, David Stephenson
  • Patent number: 10753823
    Abstract: The present disclosure relates to a system for measuring a dynamic response of a machine. The system includes a vibration mechanism, an accelerometer, a controller and a casing. The vibration mechanism is operable to generate an excitation signal, and the accelerometer is operable to measure dynamic energy in response to the excitation signal and output a dynamic response signal indicative of the dynamic energy. The controller includes a communication interface and operates the vibration mechanism to output the excitation signal and transmit a vibration input signal based on the excitation signal by way of the communication interface. The casing houses the vibration mechanism and the controller.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: August 25, 2020
    Assignee: Ford Motor Company
    Inventors: Youssef Ziada, David Stephenson
  • Publication number: 20200188550
    Abstract: Flexible polyurethane (PU) material which comprises a flexible hydrophilic polyurethane foam porous matrix comprising two matrix faces and therebetween a structural matrix framework defining a network of cells, having a cell network surface and therein a network of pores and a powder charge comprising one or more additives loaded in said structural matrix framework wherein said material is a foamed polymer of a system comprising an isocyanate prepolymer or monomer phase and an aqueous phase, wherein said system comprises one or more slurry phases or solid concentrates of said powder charge, or an insoluble portion thereof, as said isocyanate phase or part thereof and/or as said aqueous phase or part thereof and/or in a carrier liquid phase; and/or comprising a powder charge of silver salt loaded in said structural matrix framework in a population of silver salt particles defined by particle size distribution about a mean particle size of greater than or equal to 1 micron, said material comprising silver salt
    Type: Application
    Filed: July 12, 2018
    Publication date: June 18, 2020
    Inventors: Anthony Dagger, Nicholas Fry, Helene Anne Lecomte, David Stephenson, Matthew Wray
  • Patent number: 10599231
    Abstract: A tilt command system for input peripherals is disclosed which allows for enhanced functionality for a peripheral device based on the peripheral's degree of tilt and direction of tilt.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: March 24, 2020
    Inventor: David A. Stephenson
  • Publication number: 20200061728
    Abstract: A thread tap includes a shaft and teeth. The shaft includes helical passages from the threading end to the base end of the shaft. Each passage opens through an aperture in the threading end. A second tap includes a cap and the shaft includes an axially extending passage. The cap is coupled to the threading end and at least partially defines apertures in fluid communication with the passage and the exterior of the tap. A third tap includes teeth spaced apart by a plurality of linear flutes. The shaft includes a central passage and a plurality of flute passages. Each flute passage extends radially outward from a common location in the central passage to a corresponding one of the flutes. The central passage is closed to a terminal end of the threading end.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Applicant: Ford Motor Company
    Inventors: Michael Habel, Ethan Hughey, Shibu Philipose, David Stephenson
  • Patent number: 10560348
    Abstract: A network access device for facilitating the troubleshooting of network connectivity problems on a directly connected client device is provided. In one embodiment, the network access device can receive, from the client device, a request directed to a preconfigured web address associated with the network access device. In response to the request, the network access device can generate a web page comprising a ticket number for the client device and a link or form element for submitting a support request and can transmit the web page to the client device. The network access device can subsequently receive a submission of the support request from the client device. In response to the submission, the network access device can automatically collect diagnostic information pertaining to the client device. The network access device can then transmit the diagnostic information and the ticket number to one or more remote servers.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 11, 2020
    Assignee: ARRIS Enterprises LLC
    Inventors: David Stephenson, Doron Givoni
  • Patent number: 10515391
    Abstract: In an example embodiment, an apparatus comprising a transceiver configured to send and receive data and logic coupled to the transceiver. The logic is configured to determine from a signal received by the transceiver whether an associated device sending the signal supports a protocol for advertising available services. The logic is configured to send a request for available services from the associated device via the transceiver responsive to determining the associated device supports the protocol. The logic is configured to receive a response to the request via the transceiver, the response comprising at least one service advertisement and a signature. The logic is configured to validate the response by confirming the signature.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: December 24, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: David Stephenson, Esteban Raul Torres, Joseph Salowey, Chetin Ersoy, Nancy Cam-Winget
  • Publication number: 20190337059
    Abstract: A cutting tool and method of manufacturing a tool including determining desired flowrates to cutting edges. The method includes calculating pressure drop and passage dimensions for each of an nth-number of passages to the cutting edges based on In=(Pn*Ann)/(?n*Ln), wherein In is nth-passage flow rate, Pn is nth-passage pressure drop, Ann is nth-passage cross-sectional area raised to a power n, the power n being equal to 1 or 0.5, ?n is nth-passage resistivity, and Ln is nth-passage length. The method includes forming the nth-passages in the tool open to each cutting edge based on the nth-passage dimensions.
    Type: Application
    Filed: May 7, 2018
    Publication date: November 7, 2019
    Applicant: Ford Motor Company
    Inventors: Ethan Hughey, David Stephenson
  • Publication number: 20190309600
    Abstract: A flotation device for a wellbore tubular has a flotation disk having a tapered exterior profile. A maximum external diameter of the flotation disk is such to enable free longitudinal movement within the wellbore tubular. A plurality of locking segments each has a tapered interior profile cooperatively engageable with the tapered exterior profile. Each locking segment has gripping elements on an exterior surface thereof to engage an inner wall of the wellbore tubular. The tapered exterior profile and the tapered interior profile cooperate to expand a diameter of the locking segments as profile engagement increases.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 10, 2019
    Inventors: David Stephenson, Tomasz Jozef Walerianczyk
  • Publication number: 20190210174
    Abstract: The present disclosure is directed toward a tooling assembly for a machine having an automatic tool changing system. The tooling assembly includes a holder, a tool body, and an internal passage defined within and extending through the holder and the tool body. The holder includes a machine interface configured to engage with a spindle of the machine. The internal passage is operable to have a coolant fluid flow within, and has a stem channel and a curved channel extending from the stem channel.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 11, 2019
    Applicant: Ford Motor Company
    Inventors: David Stephenson, Timothy G. Beyer, Michael A. Kopmanis, David Ozog, William E. Dowling, JR.
  • Publication number: 20190107461
    Abstract: The present disclosure relates to a system for measuring a dynamic response of a machine. The system includes a vibration mechanism, an accelerometer, a controller and a casing. The vibration mechanism is operable to generate an excitation signal, and the accelerometer is operable to measure dynamic energy in response to the excitation signal and output a dynamic response signal indicative of the dynamic energy. The controller includes a communication interface and operates the vibration mechanism to output the excitation signal and transmit a vibration input signal based on the excitation signal by way of the communication interface. The casing houses the vibration mechanism and the controller.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 11, 2019
    Applicant: Ford Motor Company
    Inventors: Youssef Ziada, David Stephenson
  • Publication number: 20180176101
    Abstract: A network access device for facilitating the troubleshooting of network connectivity problems on a directly connected client device is provided. In one embodiment, the network access device can receive, from the client device, a request directed to a preconfigured web address associated with the network access device. In response to the request, the network access device can generate a web page comprising a ticket number for the client device and a link or form element for submitting a support request and can transmit the web page to the client device. The network access device can subsequently receive a submission of the support request from the client device. In response to the submission, the network access device can automatically collect diagnostic information pertaining to the client device. The network access device can then transmit the diagnostic information and the ticket number to one or more remote servers.
    Type: Application
    Filed: June 13, 2017
    Publication date: June 21, 2018
    Inventors: David Stephenson, Doron Givoni
  • Patent number: 9763140
    Abstract: Described in an example embodiment is an end-to-end admission control system that allows any rich media application to secure admission control in an environment where there are mixed wireless and wired segments in the network. In particular embodiments, the system includes the integration of Add Traffic Stream (ADDTS) and Resource Reservation Protocol (RSVP) admission control mechanisms, the mapping of parameters between these two mechanisms, the admission control policies, and failure handling for the end-to-end resource control.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: September 12, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Michael McBride, Subhasri Dhesikan, Neil Diener, David Stephenson, Rajneesh Kumar
  • Publication number: 20160364018
    Abstract: A tilt command system for input peripherals is disclosed which allows for enhanced functionality for a peripheral device based on the peripheral's degree of tilt and direction of tilt.
    Type: Application
    Filed: August 29, 2016
    Publication date: December 15, 2016
    Inventor: David A. STEPHENSON
  • Publication number: 20160259433
    Abstract: A tilt command system for input peripherals is disclosed which allows for enhanced functionality for a peripheral device based on the peripheral's degree of tilt and direction of tilt.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 8, 2016
    Inventor: David Stephenson
  • Patent number: 9236928
    Abstract: An apparatus and method for operating a Multiple Input Multiple Output (MIMO)-capable subscriber node are disclosed. In one embodiment, an apparatus includes a MIMO-capable physical layer transceiver and a Medium Access Control (MAC) layer block that measures a received transmission to determine channel conditions. Upon receiving a transmission wherein said channel conditions meet specified conditions, the MAC layer block transmits a message to an access point indicating that the apparatus wants to switch between a non-MIMO mode and a MIMO mode, and upon receiving an acknowledgement, the MAC layer block switches between the non-MIMO mode and the MIMO mode. An apparatus for operating an access node is also disclosed.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: January 12, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Ozgur Gurbuz, David Pignatelli, David Stephenson, Eldad Perahia, Bretton Douglas, Ender Ayanoglu