Patents Examined by Truong D Phan
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Patent number: 11692904Abstract: A boss structure sealing experiment device for an IV type hydrogen storage cylinder. The device includes a high-pressure chamber, a sealing leakage structure, a cylinder mouth valve, and a low-pressure chamber, where the high-pressure chamber, the sealing leakage structure, and the low-pressure chamber are tightly connected to one another through flange bolts, and the cylinder mouth valve is tightly connected to the high-pressure chamber through threads. Further disclosed is a sealing experiment system. The system includes a boss structure sealing experiment device, a high-pressure gas supply device, and a leaked gas detection device. The high-pressure gas supply device consists of a hydrogen source, a compressor, a buffer tank, a valve, and a pressure gauge; and the leaked gas detection device consists of a gas mixing chamber, a carrier gas, and a gas leakage detector. Further disclosed is a test method for a boss structure sealing experiment.Type: GrantFiled: October 14, 2022Date of Patent: July 4, 2023Assignee: ZHEJIANG UNIVERSITY OF TECHNOLOGYInventors: Yuebing Li, Zhouxin Pan, Jiqi Zhu, Zengliang Gao, Weiya Jin, Xing He
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Patent number: 11680866Abstract: The present invention is a bleeding air regulator control pneumatic circuit for supplying air to a leakage detection system for testing a device under test for leakage.Type: GrantFiled: November 12, 2021Date of Patent: June 20, 2023Assignee: Leakmaster, Inc.Inventor: Barry Money
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Patent number: 11681076Abstract: Snow sensors, mechanisms, and methods for snow sensor reading, assemblies for use with snow sensors, such as snow removal systems and assemblies and related components, as well as component combinations and related methods.Type: GrantFiled: May 2, 2022Date of Patent: June 20, 2023Assignee: CEM Products, LLCInventor: Charles Edgar Pierce
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Patent number: 11679383Abstract: Multivolume liquid pipettes with nested plunger and vacuum chamber configurations and methods of using such pipettes are disclosed herein. These pipettes typically include a body and a fluid displacement assembly with a small plunger element slideably received within a larger plunger element, each movable within a vacuum chamber for the precise and accurate control of the displacement of fluid, such as air. In turn, this allows for a single device to aspirate and dispense a broad range of liquids in a dynamic, accurate, and precise manner. In addition, the devices disclosed herein may also include a multi-tiered spring-loaded ejection mechanism to allow the user to use and eject pipette tips of different sizes.Type: GrantFiled: July 27, 2022Date of Patent: June 20, 2023Assignee: DeNovix, IncInventors: Daniel A. Schieffer, David L. Ash, David B. Ward
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Patent number: 11674869Abstract: Devices and methods for analyzing a sample are disclosed. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample and conducting sample analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device. The reader instrument device receives, operates, and/or actuates the cartridge device to prepare a serial dilution of a sample and conduct sample analysis.Type: GrantFiled: February 26, 2019Date of Patent: June 13, 2023Assignee: CYTOCHIP, INC.Inventors: Wendian Shi, Yuan Gao, Yuzhe Ding
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Patent number: 11668687Abstract: A combustion analyzer configured to simultaneously detect the concentrations of oxygen, carbon monoxide and methane in a combustion process is provided. The combustion analyzer includes an oxygen sensor configured to detect the oxygen in the combustion process and generate a first sensor signal indicative of the concentration of oxygen in the combustion process. The combustion analyzer further includes a dual carbon monoxide-methane sensor configured to operate at approximately 600° C. and provide a second sensor signal indicative of methane concentration and at approximately 300° C. to selectively provide a third sensor signal indicative of carbon monoxide concentration. The combustion analyzer finally includes a controller configured to receive the sensor signals, determine the concentration of oxygen and generate a carbon monoxide concentration output and a methane concentration output based on the dual carbon monoxide-methane sensor signals and the concentration of oxygen.Type: GrantFiled: September 30, 2019Date of Patent: June 6, 2023Assignee: Rosemount Inc.Inventors: Pavel Shuk, Chad M. McGuire
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Patent number: 11668635Abstract: Various examples are provided related to determination of contact angle of sessile drops. In one example, a method includes determining a volume of a sessile drop of fluid disposed on a test surface; determining a height of the sessile drop of fluid; and determining a contact angle of the sessile drop of fluid based upon the volume and the height of the sessile drop. In another example, a system includes a volume sensing, a height sensing, and computing that can determine a volume and height of a sessile drop using volume and height data from the sensing, and determine a contact angle of the sessile drop with the volume and the height. The contact angle and surface tension can be determined with at least three of volume, a height, a footprint radius, a radius of maximum horizontal extent, and/or an apex radius of curvature of the drop.Type: GrantFiled: March 15, 2019Date of Patent: June 6, 2023Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONAInventors: Feredoon Behroozi, Peter Behroozi
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Patent number: 11660592Abstract: Multivolume liquid pipettes with nested plunger and vacuum chamber configurations and methods of using such pipettes are disclosed herein. These pipettes typically include a body and a fluid displacement assembly with a small plunger element slideably received within a larger plunger element, each movable within a vacuum chamber for the precise and accurate control of the displacement of fluid, such as air. In turn, this allows for a single device to aspirate and dispense a broad range of liquids in a dynamic, accurate, and precise manner. In addition, the devices disclosed herein may also include a multi-tiered spring-loaded ejection mechanism to allow the user to use and eject pipette tips of different sizes.Type: GrantFiled: February 12, 2021Date of Patent: May 30, 2023Assignee: DeNovix, Inc.Inventors: Daniel A. Schieffer, David L. Ash, David B. Ward
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Patent number: 11648550Abstract: In order for the handling of a pipette to be improved, the pipettes (1) according to the invention and a method according to the invention for setting a volume of a pipette to be pipetted are proposed. In the case of the pipette (1) it is provided that the activation element (7) for activating the ejection mechanism (6) for ejecting a pipette tip forms a conduit (9) for the pipetting button (3). On account thereof, an activation face (10) of the activation element (7) is enlarged in such a manner that the handling of the ejection mechanism (6) of the pipette (1) is in particular simplified and is particularly comfortable. It is furthermore also proposed that the activation element (7) is coupled to the volume adjustment mechanism (11) of the pipette, and the adjustment of the volume to be pipetted by the pipette (1) is performed with the aid of a movement of the activation element (7)(FIG. 4).Type: GrantFiled: September 25, 2017Date of Patent: May 16, 2023Assignee: IKA-Werke GmbH & Co. KGInventor: Philip Döbele
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Patent number: 11650123Abstract: A case airtightness evaluation method evaluates airtightness of a case mounted at a vehicle. A pressure measuring step of the evaluation method includes pressurizing or depressurizing air in the case, allowing pressure in the case to stabilize, and then measuring a pressure change in the case. During the measurement of the pressure change, a deformation amount acquiring step acquires a deformation amount of a specific location of the case. Based on the acquired deformation amount, a correcting step corrects the measured pressure change. Based on the corrected pressure change, an evaluating step evaluates airtightness of the case.Type: GrantFiled: January 4, 2021Date of Patent: May 16, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Koji Tamaru
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Patent number: 11635321Abstract: Methods and systems for sensing a fluid level associated with an engine are described. The method comprises generating an input signal and applying the input signal to a resistive portion and a capacitive portion of a fluid level sensing device, measuring a first varying output of the resistive portion of the fluid level sensing device through a first channel of a controller of the engine, measuring a second varying output of the capacitive portion of the fluid level sensing device through a second channel of the controller of the engine, and translating at least one of the first varying output and the second varying output into a level of fluid and outputting the level of fluid.Type: GrantFiled: January 16, 2020Date of Patent: April 25, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Sarmad Khan
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Patent number: 11630024Abstract: A method for testing a test specimen for the presence of a leak using a film chamber for accommodating the test specimen, wherein the film chamber comprises walls enclosing a film chamber volume, which walls include at least one flexible wall area, comprising the steps of: placing the test specimen into the film chamber, and closing the film chamber, characterized in that complete closing of the film chamber is determined on the basis of the signal of a position measuring device which detects the relative position of the film chamber walls with respect to each other.Type: GrantFiled: January 28, 2019Date of Patent: April 18, 2023Assignee: INFICON GmbHInventor: Norbert Rolff
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Patent number: 11624682Abstract: To sample cooling water from a discharge pipe under vacuum, with a simple structure and without using a large-scale device. Provided is a sampling system for sampling cooling water flowing through a discharge pipe extending from a condenser to a sea. The sampling system includes: a bypass pipe branched off from the discharge pipe and joining the discharge pipe; two shutoff valves provided in the bypass pipe; a sampling pipe branched off from the bypass pipe between the two shutoff valves; a vent pipe branched off from the bypass pipe between the two shutoff valves; a sampling valve provided in the sampling pipe; and a vent valve provided in the vent pipe.Type: GrantFiled: July 15, 2021Date of Patent: April 11, 2023Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Jun Tsunoda, Ryoichi Okura, Kazuhiko Sato
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Patent number: 11604208Abstract: A MEMS device includes: a substrate as a base including a support portion and a detection electrode as a fixed electrode; a movable body supported to the support portion with a major surface of the movable body facing the fixed electrode; and an abutment portion facing at least a portion of an outer edge of the movable body and restricting rotational displacement in an in-plane direction of the major surface. The abutment portion includes an abutment surface including an abutment position at which the movable body abuts against the abutment portion due to the rotational displacement of the movable body, and a hollow portion provided opposing the abutment surface.Type: GrantFiled: April 21, 2021Date of Patent: March 14, 2023Inventor: Fumiya Ito
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Patent number: 11604179Abstract: A system and method for testing a gas sensor with a test gas and that recovers the test gas after testing. The test gas is stored in a test gas source, and delivered to the gas sensor through a supply circuit. After the test is completed, gas is withdrawn from the supply circuit into a recycle circuit. A compressor in the recycle circuit pulls the test gas into the recycle circuit, pressurizes the test gas and discharges the pressurized test gas back into the test gas source. Valves are in the supply and recycle circuits, which when selectively opened and closed changes between testing and recycle configurations. The recycle flow is filtered to prevent air and other non-test gas substances from being introduced into the test gas source.Type: GrantFiled: February 24, 2020Date of Patent: March 14, 2023Assignee: SAUDI ARABIAN OIL COMPANYInventors: Ala'A Alsalman, Adam Alawwami, Abdulaziz Hudaifah, Faisal Al-Oufi, Reem Alnoaimi, Saad Almughairah
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Patent number: 11584948Abstract: The present invention relates to the technical field of chemical analysis and quantitative detection, in particular to a quantitative detection method for snake venom thrombin-like enzyme (SVTLE) from Agkistrodon halys pallas. The quantitative detection method for the SVTLE includes the following steps of taking a reference substance of marker peptide for the SVTLE from Agkistrodon halys pallas with an amino acid sequence of LDSPVSNSAHIAPLSLPSSAPSVGSVCR, and preparing a series of reference solutions with different concentrations; adding the reference solutions in test solutions respectively for enzymolysis, and then taking a supernatant after enzymolysis as a series of solutions to be detected; and adding the solutions to be detected in a liquid chromatogram-mass spectrometer, and then selecting a qualitative ion pair and a quantitative ion pair to detect contents of marker peptide in the solutions to be detected.Type: GrantFiled: July 30, 2021Date of Patent: February 21, 2023Assignees: Shandong Institute for Food and Drug Control, Shandong University, Avanc Pharmaceutical Co., LtdInventors: Feng Shi, Liping Gong, Ruiqing Xian, Lianli Chi, Weijian Wang, Baojian Hang, Congcong Wang, Pengfei You, Hongming Du
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Patent number: 11585713Abstract: In a pressure sensor including a substrate supported by input-output terminals, the substrate is provided with a circular hole located substantially at its central part, and an arc-shaped communication hole formed adjacent to three through-holes to which three of lead pins are inserted and fixed, respectively.Type: GrantFiled: July 29, 2021Date of Patent: February 21, 2023Assignee: SAGINOMIYA SEISAKUSHO, INC.Inventor: Kazuya Takimoto
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Patent number: 11573162Abstract: The present disclosure relates to a density meter for slurry which is transported through a pipe, the density meter may include a frame; a pipe part; flexible pipe couplings arranged between the frame and either end of the pipe part for coupling the pipe part to the frame and to a feed pipe and a discharge pipe; a first accelerometer arranged on the pipe part for measuring the accelerations of the pipe part; an actuator arranged between the pipe part and the frame for imparting force on the pipe; a controller for controlling the actuator; and a computing means having a mathematical model to ultimately calculate the density of the slurry in the pipe part.Type: GrantFiled: July 18, 2019Date of Patent: February 7, 2023Assignee: Alia Instruments Holding B.V.Inventors: Petrus Theodorus Rutgers, Jan Peters
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Patent number: 11566982Abstract: Microscale and/or mesoscale condenser arrays that can facilitate microfluidic separation and/or purification of mesoscale and/or nanoscale particles and methods of operation are described herein. An apparatus comprises a condenser array comprising pillars arranged in a plurality of columns, wherein a pillar gap greater than or equal to about 0.5 micrometers is located between a first pillar of the pillars in a first column of the columns and a second pillar of the plurality of pillars in the first column, and wherein the first pillar is adjacent to the second pillar. The first ratio can be characterized by Dx/Dy is less than or equal to a first defined value, wherein Dx represents a first distance across the lattice in a first direction, wherein Dy represents a second distance across the lattice in a second direction, and wherein the first direction is orthogonal to the second direction.Type: GrantFiled: April 12, 2021Date of Patent: January 31, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Benjamin H. Wunsch, Joshua T. Smith, Sung-Cheol Kim, Stacey M. Gifford
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Patent number: 11566883Abstract: A detection arrangement for detecting a wear status of a chopping knife arrangement of a chopping device provided for processing a product flow, wherein the chopping device has a revolving chopping drum receiving the chopping knife arrangement and at least one shear bar which cooperates with the chopping knives, with a sensor arrangement which has a magnetic exciter arrangement and a flux conducting device magnetically coupled thereto. The sensor arrangement provides a pole arrangement which forms at least one magnetic pole with a pole surface for conducting magnetic flux, wherein at least a portion of the chopping knife passes the pole arrangement during a rotation of the chopping drum. A voltage induced when a chopping knife arrangement passes the sensor arrangement forms the measured magnetic value, which is used by the evaluation unit to determine the state of wear of the chopping knife arrangement.Type: GrantFiled: March 11, 2020Date of Patent: January 31, 2023Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Christoph Heitmann, Dennis Neitemeier, Markus Brune, Jochen Huster, Frédéric Fischer, Bjoern Stremlau