Patents Examined by Nathaniel J Kolb
  • Patent number: 11067470
    Abstract: Systems, devices, and methods for leak testing surgical conduit grafts or valved conduits such as aortic-valved conduits with a pressurized gas such as air. Air is non-destructive and especially useful for leak testing conduits that have coatings or sealants that may be functionally impacted when exposed to fluids such as water or saline. Open ends of the conduit are clamped and sealed, and a pressurized gas introduced into an inner lumen thereof. A change in mass flow rate is measured to quantify the leakage. One end of a tubular conduit may be clamped to a fixed manifold, and the opposite end to a manifold slidably mounted to accommodate any conduit elongation when pressurized. The clamping and sealing structure may be pneumatic and/or mechanical, and complementary contoured clamp members may be used to seal a scalloped external sealing ring of an aortic conduit.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 20, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Van Nest, Alyssa E. Kornswiet, Jackie P. Lau
  • Patent number: 11067490
    Abstract: A bracket, a support system, and a thrombelastography device and use method thereof are disclosed. The bracket comprises: a first support part (1001), a second support part (1003), and a connection part (1002), wherein the first support part (1001) supports the second support part (1003) by means of the connection part (1002), so that the second support part (1003) can rotate relative to the first support part (1001) under a first action force.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: July 20, 2021
    Assignee: NEOTEK BIOSCIENCE CO., LTD.
    Inventors: Feng Jiang, Jian Xiao, Gong Liu, Aiqin Chen, Bangzhong Yu
  • Patent number: 11041780
    Abstract: Systems and methodologies are disclosed to detect a leak in a duct system or other closed loop system. The system and methodologies use a light source to detect a leak in a duct system, e.g., the ductwork of a HVAC/R system.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 22, 2021
    Inventor: John Johnson
  • Patent number: 11035669
    Abstract: Disclosed herein are systems and methods for profiling a surface. In some embodiments, the systems and methods perform profiling using a robotic vehicle. The vehicle can include a drive system, one or more wheel encoders, and one or more distance sensors and/or inertial measurement units for capturing measurement data, such as the slope of the surface or the angle of the robotic vehicle relative to the surface or the gravity vector. A control computing system is included having one or more processors that execute instructions stored in software modules to process movement data. In some embodiments, the processed movement data determines a plurality of snapshots of the surface at different times and positions as the robotic vehicle traverses the surface. These snapshots are combined to generate a profile of the surface.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 15, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Sahejad Patel, Fadl Abdellatif, Brian Parrott
  • Patent number: 11029238
    Abstract: The present invention relates to a device for determining the correct viscosity of a liquid, comprising member which either remains in or assumes a substantially upright or pre-determined position when placed in a fluid having at least the desired or specified viscosity and is unable to remain in a substantially upright or pre-determined position if a fluid has less than the desired or specified viscosity. The invention also relates to methods and uses of particular devices and is particularly suited to assisting patients suffering from dysphasia (or similar conditions) and who wish to thicken liquids to enable them to allow safe swallowing without aspiration to take place.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: June 8, 2021
    Inventors: Steven Bookbinder, Elizabeth Boaden
  • Patent number: 11029187
    Abstract: A fill level radar device for fill level measurement in accordance with the reflectometer method is provided, including a control circuit that is designed for changing the number of steps, the frequency spacings between the individual steps, the durations of the individual steps, the width of the frequency band, the frequency of the lowest step and/or the frequency of the highest step. The operating sequence can be optimised thereby.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: June 8, 2021
    Assignee: VEGA GRIESHABER KG
    Inventors: Roland Welle, Karl Griessbaum
  • Patent number: 11021656
    Abstract: Described herein are systems and methods for evaluating and mitigating the fouling potential of a given crude oil. The system and methods enable the refiner to rapidly and readily identify the particular mechanisms by which a crude oil may foul, and to select the optimal chemical treatment and/or crude blend to mitigate fouling potential.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: June 1, 2021
    Assignee: BL TECHNOLOGIES, INC.
    Inventors: Guangzhe Yu, Nimeshkumar Kantilal Patel, Bryan Christopher Crom, Anthony Fields, Roberto Manuel Gutierez, Xiomara Price
  • Patent number: 10989620
    Abstract: Various embodiments include an offline leak detection system for a turbomachine fuel system. In some embodiments, the leak detection system includes: a fluid supply system fluidly connected to at least one fuel line of the turbomachine, the fluid supply system for delivering a non-flammable fluid to the combustor; a control system operably connected to the fluid supply system, the control system controlling a flow of the non-flammable fluid through the at least one fuel line, and controlling a pressure of the non-flammable fluid in the at least one fuel line to a pressure substantially equal to an operational fuel pressure of the turbomachine; and an optical monitor for determining a presence of the non-flammable fluid on an exterior of the at least one fuel line, the presence of the non-flammable fluid on the exterior of the at least one fuel line indicating a leak.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: April 27, 2021
    Assignee: General Electric Company
    Inventors: Rajarshi Saha, Mohamad-Maher Aboujaib, Bouria Faqihi, Sindhu Penna
  • Patent number: 10973457
    Abstract: A medical or dental device for determining a bone's quality by cutting a thread into the bone with a rotating threaded element comprises a control unit having a measurement circuit configured: (i) to determine values of the motor current via a first electrical contact device with which the motor drive is supplied for rotational drive of the threaded element that can be connected to the motor drive, the current values being a measure of the bone's quality; (ii) to monitor and/or to determine the penetration depth of the threaded element into the bone, and (iii) to generate measurement signals which show the relationship between the penetration depth and the determined current values or parameters derived therefrom, and to transmit these signals to a display unit, which displays the relationship between the determined current values or parameters derived therefrom, in particular the bone's quality, and the penetration depth.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: April 13, 2021
    Assignee: W&H Dentalwerk Bürmoos GmbH
    Inventors: Gernot Ploy, Wilhelm Brugger
  • Patent number: 10955329
    Abstract: A method and a system for measuring the pore structure of tight sandstone are provided. The method comprises the following steps: carrying out the desorption experiment of a core sample saturated by a specific gas containing isotope element to obtain the pressure of the specific gas and the total isotope ratio at each sampling moment; acquiring a single isotope ratio of each pore diameter at each sampling moment according to a physical model containing pore diameter parameter and the pressure of the specific gas at each sampling moment; and obtaining the proportion of a pore of each pore diameter in the core sample. The method and the system for measuring the pore structure of the tight sandstone provided by the disclosure can quickly obtain the pore distribution of the tight sandstone without damaging a sample.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: March 23, 2021
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES (IGGCAS)
    Inventors: Shujuan Kang, Yunfeng Yang, Yu Peng, Huafeng Qin, Ranran Liu, Yongxin Pan
  • Patent number: 10953709
    Abstract: A wheel comprising a rim carrying a tire that co-operates with the rim to define an inside volume, the wheel comprising a pressure measurement device comprising an electronic control circuit that is connected to a pressure sensor, to an absence-of-movement sensor for sensing that the wheel is not moving and to an electronic circuit for wireless communication, the pressure measurement device being arranged to cause pressure to be measured while the wheel is detected as not moving. A pressure measurement device and an associated measurement method.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 23, 2021
    Assignee: Safran Electronics & Defense
    Inventors: Thierry Bickard, Nicolas Fanton, Emmanuel Couturier
  • Patent number: 10942103
    Abstract: A method and a device for the measurement of one or more fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element which is mounted in a magnet bearing, and the delivery element of the fluid pump is excited into an oscillation by way of an excitation device, wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: March 9, 2021
    Assignee: BERLIN HEART GMBH
    Inventors: Kurt Graichen, Andreas Arndt, Peter Nuesser
  • Patent number: 10920729
    Abstract: There are described methods and systems for testing operation of a solenoid valve in a control system. A valve command is sent to successively open and close a solenoid valve. A flow command from a control system is monitored to detect a change in the flow command in response to the valve command. The flow command is associated with regulation of fluid flow in a process controlled by the control system. Operation of the solenoid valve is confirmed when the change in flow command is detected.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 16, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Michael Darby
  • Patent number: 10895146
    Abstract: A water level and well depth measuring device includes a measuring probe, a control switch, a processing unit, an external power source, and a housing. The measuring probe is inserted into a well to determine a depth to a water level and a depth to a well bottom. An insulated cable, which connects the measuring probe and the housing, is used to lower the measuring probe into the well. The control switch, preferably a three-way switch, the processing unit, and the external power source are integrated into the housing. The control switch may be used to alternate between a level-measuring module and a base-measuring module of the measuring probe. The measuring probe is communicably coupled with the processing unit. Therefore, when the level-measuring module detects a water level and when the base-measuring module is at a well bottom, the processing unit activates a visual indicator and an audible alarm.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: January 19, 2021
    Assignee: King Abdulaziz University
    Inventor: Mohamed Ahmed Ahmed Rashed
  • Patent number: 10859481
    Abstract: The present disclosure relates to systems and methods for determining a fluid characteristic of a fluid flowing within a flow region.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 8, 2020
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Eric van Oort, Ali Karimi Vajargah
  • Patent number: 10852170
    Abstract: A method determines a fluid quantity relating to a fluid flowing in a measuring device. The measuring device has a measuring tube which receives the fluid, and first and second oscillation transducers. An excitation of a total wave, which is conducted through a wall of the measuring tube, by the first and/or second oscillation transducer, by wave components which are conducted in the wall being excited by the oscillation transducers in a plurality of excitation regions. These wave components are superposed to form the total wave. A distance between the centers of the excitation regions and the excitation frequency are selected such that an oscillation mode to be attenuated is quenched by destructive interference of the wave components in a propagation direction. Excitation of a compression oscillation of the fluid by the total wave occurs. Measurement data relating to the compression oscillation is used to determine the fluid quantity.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: December 1, 2020
    Assignee: Diehl Metering GmbH
    Inventors: Michael Mayle, Peter Ploss
  • Patent number: 10852278
    Abstract: The present invention provides a detector and method for detecting substances in complex mixtures. The detector includes a microfabricated preconcentrator, a separation column with an on-chip thermal conductivity detector, a controller for controlling flow and thermal management and a user interface. The thermal conductivity detector includes a first resistor located at an inlet of the separation column and a second resistor located at an outlet of the separation column.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: December 1, 2020
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Masoud Agah, Muhammad Akbar, Apoorva Garg, Leyla Nazhandali, Hamza Shakeel
  • Patent number: 10837776
    Abstract: A method for operating a micromechanical component (a rotation rate sensor), in which a first AC electrical voltage, having a first frequency, is applied to a drive-electrode so that an oscillation apparatus is deflected parallel to a deflection direction by the drive-electrode; a second AC electrical voltage, having a second frequency, is applied to a detection-electrode so that a force effect on the oscillation apparatus perpendicularly to the detection direction is detected by the drive-electrode, a third AC electrical voltage, having a third frequency differing from the first, is applied to the drive-electrode so that a deflection of the oscillation apparatus parallel to the deflection direction is detected by the drive-electrode; and/or that a fourth AC electrical voltage, having a fourth frequency differing from the second, is applied to the detection-electrode to exert a further force effect, opposite to the force effect, on the oscillation apparatus.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: November 17, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Michael Curcic
  • Patent number: 10830660
    Abstract: A leak detection system comprising a substantially sealed accumulation chamber adapted to accommodate a single gas container, the accumulation chamber being sealed so that when a gas container is in the accumulation chamber gas leaked from that container accumulates. An optical detector is provided for detecting leaked gas, the detector including an optical cell. A controller directs a reference sample to the optical cell and subsequently directs a sample from the from the accumulation chamber to the optical cell. The optical detector is operable use both the reference sample and the accumulation chamber sample to detect leaked gas.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: November 10, 2020
    Assignee: Cascade Technologies Holdings Limited
    Inventors: Paul Miller, Graeme Walker, Iain Howieson, Ruth Lindley
  • Patent number: 10832887
    Abstract: A cryotransfer holder for mounting a specimen held at cryogenic temperature in an electron microscope is described. The holder includes a cylindrical dewar configured to maintain a constant center of mass about the holder axis regardless of orientation of the dewar. The holder further includes a sample shutter control mechanism that can be decoupled from the shutter to reduce vibration during imaging. There is also described a workstation for mounting specimens into the cryotransfer holder at cryogenic temperature. The workstation allows rotation about the cryotransfer holder axis to improve access to the sample placement area on the holder and to facilitate easy removal and retrieval of the sample after imaging.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: November 10, 2020
    Assignee: Gatan, Inc.
    Inventors: Alexander Jozef Gubbens, John Andrew Hunt, Masoud Azimi, Radosav Pantelic, Ron Zolkowski, Chris Booth