Patents by Inventor Stephen Lewis

Stephen Lewis 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: 11918172
    Abstract: This document describes a mobile cleaning robot including a chassis having a forward portion and an aft portion; a blower affixed to the chassis; a bin supported by the chassis and configured to receive airflow from the blower, the chassis enabling evacuation of the bin through a bottom of the robot. The bin includes a top, a bottom, a sidewall, and an internal barrier. The bin includes a first volume and a second volume separated by the internal barrier and a filter unit supported by the internal barrier and removably disposed in an airflow path between the first volume that includes an intake port in the bin and the second volume that includes an exhaust port in the bin.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: March 5, 2024
    Assignee: iRobot Corporation
    Inventors: Oliver Lewis, Stephen A. Hickey, Russell Walter Morin
  • Publication number: 20240050766
    Abstract: A system for subcutaneous photobiomodulation (PBM) is described. The system includes a light source that can generate light inside the body (subcutaneously) and a light transmission medium and an emitter that can deliver the light directly to a target location within tissue of the body to treat one or more medical conditions. For example, the light signal can be used to treat a medical condition, which can be controlled/regulated by at least one small nerve and the light signal can be configured for delivery to the at least one small nerve.
    Type: Application
    Filed: February 21, 2022
    Publication date: February 15, 2024
    Inventors: Michael MOFFITT, Stephen LEWIS, Michael JENKINS
  • Patent number: 11789166
    Abstract: An approach for counting particles suspended in a flow of gas or liquid in instruments that direct the flow through an illuminated region. Pulses are detected when the signal is below a threshold amplitude and moves above the threshold amplitude. This movement above the threshold creates a dead time during which only one pulse is detected until the signal amplitude moves sufficiently below the threshold such that a subsequent particle creates a distinct pulse. After counting the number of pulses, and determining the measured live time that the signal is below the threshold value, an initial particle concentration is calculated, and the calculation corrected for coincidence by calculating an actual live time as a measured live time minus a constant multiplied by the number of distinctly counted pulses, where the constant has the units of time. From this, particle concentrations in a volume can be determined.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: October 17, 2023
    Assignee: Aerosol Dynamics Inc.
    Inventors: Susanne Vera Hering, Gregory Stephen Lewis, Steven Russel Spielman, Mark R. Stolzenberg
  • Publication number: 20230278776
    Abstract: The present invention relates to a package (10) for an aerosol provision system component or an article. The package comprises a container (11) with an access (15), and an inner pack (20) located within the container such that the inner pack can be accessed via the access. The inner pack comprises a sheet material that is arranged to form the inner pack. The inner pack comprises a first end wall (22) proximate to the access and a second end wall (23) distal to the access longitudinally distant from the first end wall. The first end wall comprises first and second flaps (25, 26) of the sheet material which extend from opposing sides of the first end wall. The first and second end flaps of sheet material are secured in position by an adhesive (29) configured to seal the inner pack. The present invention also relates to a method of manufacture of a package.
    Type: Application
    Filed: June 30, 2021
    Publication date: September 7, 2023
    Inventors: Paul HODGES, Stephen LEWIS, Thomas ALLEN, Michael CHURCHER, Isaak MUSTAFA
  • Publication number: 20230271763
    Abstract: The present invention relates to a package (10) for an aerosol provision system component or article. The package comprises a container (11) with an access (15), and an inner pack (20) located within the container such that the inner pack can be accessed via the access. The inner pack comprises a sheet material (21) that is arranged to form the inner pack. The inner pack comprises a first end wall (22) proximate to the access and a second end wall (23) distal to the access. The first end wall comprises a first flap (25) and a second flap (26), which extend from opposing sides of the first end wall and are attached to each other and configured to seal the inner pack. The sheet material comprises a portion having the first flap of the first end wall. The portion is at least partially separable from a remainder of the sheet material to unseal the inner pack and allow access to the inside of the inner pack.
    Type: Application
    Filed: June 30, 2021
    Publication date: August 31, 2023
    Inventors: Paul HODGES, Stephen LEWIS, Thomas ALLEN, Michael CHURCHER, Isaak MUSTAFA
  • Publication number: 20230271772
    Abstract: The present invention relates to a package (1) for an aerosol provision system component or article. The package comprises a container, and an inner pack (2) located within the container. The inner pack comprises a sheet of material that is arranged to form the inner pack. The sheet material comprises at least 90% of a first material (by mass) and has a water vapour permeability of less than 6 g/m2/24 hr. The present invention also relates to a method of manufacture of a package.
    Type: Application
    Filed: June 30, 2021
    Publication date: August 31, 2023
    Inventors: Paul HODGES, Stephen LEWIS, Thomas ALLEN, Michael CHURCHER, Isaak MUSTAFA
  • Publication number: 20230150744
    Abstract: Packaging for tobacco industry products is disclosed. The packaging comprises a pack for holding tobacco industry products, and an outer wrapper enveloping the pack. The outer wrapper comprises a removable portion arranged to prevent opening of the pack until the removable portion has been removed. One of the pack and the removable portion comprises a tamper evident feature that remains attached to the other of the pack or the removable portion after the removable portion is removed from the pack. A method of packaging tobacco industry products is also disclosed.
    Type: Application
    Filed: January 5, 2023
    Publication date: May 18, 2023
    Inventors: Stephen LEWIS, Paul MATTHEWS, Mustafa, Isaak GHULAM
  • Publication number: 20230055946
    Abstract: A technique facilitates reducing or eliminating the risk of premature actuation of a liner hanger system and/or premature release of a miming tool. According to an embodiment, the technique utilizes a running string for deploying a liner hanger assembly having a liner hanger which may be actuated at a desired location to suspend a liner/casing from a surrounding casing string. An anti-preset module may be used in cooperation with the liner hanger to prevent premature actuation of the liner hanger. By way of example, the anti-preset module may use pressure equalization between a region within the miming string and a region between the miming string and the liner hanger to prevent pressure imbalances which could actuate the liner hanger. Additionally, a locking mechanism, e.g. releasable lock dogs, may be used to temporarily lock the liner hanger against premature actuation.
    Type: Application
    Filed: January 18, 2021
    Publication date: February 23, 2023
    Inventors: Juan Pablo Macin Moreno, Jose Hurtado, Mikhail Gotlib, George Telfer, Stephen Lewis
  • Patent number: 11565865
    Abstract: Packaging for tobacco industry products is disclosed. The packaging comprises a pack (2) for holding tobacco industry products, and an outer wrapper (3) enveloping the pack. The outer wrapper comprises a removable portion (17) arranged to prevent opening of the pack until the removable portion has been removed. One of the pack and the removable portion comprises a tamper evident feature that remains attached to the other of the pack or the removable portion after the removable portion is removed from the pack. A method of packaging tobacco industry products is also disclosed.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: January 31, 2023
    Assignee: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
    Inventors: Stephen Lewis, Paul Matthews, Mustafa Isaak Ghulam
  • Publication number: 20220265918
    Abstract: A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 25, 2022
    Inventors: Dean Kamen, Larry Brian Gray, Richard J. Lanigan, John Matthew Kerwin, Stephen Lewis Fichera
  • Publication number: 20220211937
    Abstract: A wearable infusion pump assembly includes a reusable housing assembly, and a disposable housing assembly including a reservoir for receiving an infusible fluid. A releasable engagement assembly is configured to allow the reusable housing assembly to releasably engage the disposable housing assembly. A detachable external infusion set is configured to deliver the infusible fluid to a user.
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Inventors: Dean Kamen, Larry B. Gray, Richard J. Lanigan, John Matthew Kerwin, Stephen Lewis Fichera
  • Patent number: 11318249
    Abstract: A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 3, 2022
    Assignee: DEKA PRODUCTS LIMITED PARTNERSHIP
    Inventors: Dean Kamen, Larry Brian Gray, Richard J. Lanigan, John Matthew Kerwin, Stephen Lewis Fichera
  • Publication number: 20220128445
    Abstract: A method and apparatus to create water vapor supersaturation and particulate counts from an air sample. The method and apparatus include introducing an air sample into a chamber connected to an optical detector and an outlet by pumping at the outlet. The method further includes passing air through the chamber and optical detector in a steady flow, and subsequently closing the inlet while continuing the pumping to expand the air sample and exhaust a portion of the air sample through the optical detector. The walls of the particle chamber are wetted with a fluid such as water, and one portion of the wall is warmer than the other portions such that there is some condensational growth prior to the expansion, and yet more condensational growth during the expansion. The cycles are repeated by continuously repeating the introducing, passing and closing.
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Applicant: Aerosol Dynamics Inc.
    Inventors: Susanne Vera Hering, Gregory Stephen Lewis, Steven Russel Spielman
  • Patent number: 11305138
    Abstract: A system includes a first and second condensation particle counter, each counter having an inlet port, a growth column, and an optical element for counting particles detected at the respective inlet ports. The counters are configured to include a wick in which the wick is wetted by water. A differential pressure sensor is coupled to the first inlet port and coupled to the second inlet port. The sensor is configured to provide a pressure signal. A processor is coupled to memory and configured to receive the first signal, the second signal, and the pressure signal and generate an output corresponding to a ratio of the first signal and the second signal and correlate the ratio with the pressure signal. A housing is configured to receive the first counter, the second counter, the differential pressure sensor, the processor, and the memory.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: April 19, 2022
    Assignees: TSI Incorporated, Aerosol Dynamics Inc.
    Inventors: Daniel C. Bjorkquist, Arantzazu Eiguren Fernandez, Kenneth Farmer, Melissa Grose, Susanne Vera Hering, Gregory Stephen Lewis, Steven Russel Spielman, David Workman
  • Patent number: 11295053
    Abstract: Various implementations described herein are directed to an integrated circuit (IC) having a design that is severable into multiple sub-circuits having input-output (IO) ports. The integrated circuit (IC) may include multiple physical electrical connections that are adapted to electrically interconnect the IO ports of the multiple sub-circuits to operate as the IC, and the IO ports have three-dimensional (3D) geometric position information associated therewith.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: April 5, 2022
    Assignee: Arm Limited
    Inventors: Xiaoqing Xu, Brian Tracy Cline, Saurabh Pijuskumar Sinha, Stephen Lewis Moore, Mudit Bhargava
  • Patent number: 11285259
    Abstract: A wearable infusion pump assembly includes a reusable housing assembly, and a disposable housing assembly including a reservoir for receiving an infusible fluid. A releasable engagement assembly is configured to allow the reusable housing assembly to releasably engage the disposable housing assembly. A detachable external infusion set is configured to deliver the infusible fluid to a user.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 29, 2022
    Assignee: DEKA PRODUCTS LIMITED PARTNERSHIP
    Inventors: Dean Kamen, Larry B. Gray, Richard J. Lanigan, John Matthew Kerwin, Stephen Lewis Fichera
  • Patent number: 11237091
    Abstract: A particle growth apparatus includes a temperature-controlled humidifier coupled to a water-based condensation growth system. The humidifier may include a tube of sulfonated tetrafluoroethylene-based fluoropolymer-copolymer and surrounded by a region containing water or water vapor. The apparatus includes a wetted wick and wick sensor in the condensation growth system, configured such that the gas sample flows through the sulfonated tetrafluoroethylene-based fluoropolymer-copolymer tube into the condensation growth system.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: February 1, 2022
    Assignee: Aerosol Dynamics Inc.
    Inventors: Susanne Vera Hering, Arantzazu Eiguren Fernandez, Gregory Stephen Lewis, Steven Russel Spielman, Philip Bourgeois
  • Publication number: 20220026332
    Abstract: A method and apparatus to create water vapor supersaturation and particulate counts from an air sample. The method and apparatus include introducing an air sample into a chamber by passing a flow into the chamber through the inlet by pumping at the outlet. The method further includes closing the inlet while continuing the pumping to exhaust the air sample from the chamber through the outlet. The pumping is performed at a rate operable to reduce pressure inside the chamber such that the air sample in the central portion of the chamber cools, and water vapor from walls of the chamber has time to diffuse into the air sample in the chamber from the walls. The cycles are repeated by continuously repeating the introducing and closing. The walls of the chamber may be wet or dry.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Applicant: Aerosol Dynamics Inc.
    Inventors: Susanne Vera Hering, Gregory Stephen Lewis, Steven Russel Spielman
  • Publication number: 20220026333
    Abstract: A method and apparatus to create water vapor supersaturation and particulate counts from an air sample. The method and apparatus include introducing an air sample into a chamber by passing a flow into the chamber through the inlet by pumping at the outlet. The method further includes closing the inlet while continuing the pumping to exhaust the air sample from the chamber through the outlet. The pumping is performed at a rate operable to reduce pressure inside the chamber such that the air sample in the central portion of the chamber cools, and water vapor from walls of the chamber has time to diffuse into the air sample in the chamber from the walls. The cycles are repeated by continuously repeating the introducing and closing. The walls of the chamber may be wet or dry.
    Type: Application
    Filed: October 5, 2021
    Publication date: January 27, 2022
    Applicant: Aerosol Dynamics Inc.
    Inventors: Susanne Vera Hering, Gregory Stephen Lewis, Steven Russel Spielman
  • Publication number: 20210361245
    Abstract: Systems and methods of reducing false alarms associated with a vital-sign monitor are disclosed. One or more data samples of a vital sign of a patient are generated at a first sampling rate in a normal mode of operation. Whether the one or more data samples satisfy an alert condition is determined. An alert mode of operation is entered into if the alert condition is satisfied. One or more additional data samples of the vital sign are generated at a second sampling rate higher than the first sampling rate in the alert mode.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Inventors: Pierre PAQUET, Stephen LEWIS