Patents Examined by Edward F Landrum
  • Patent number: 12220292
    Abstract: Embodiments of the present invention comprise a powered toothbrush comprising a bristle head, an outer gear, and a plurality of bristles. Both the bristle head and the outer gear may comprise a distal end, a proximal end, and a center. The distal end of the bristle head may mate with the proximal end of the outer gear. The outer gear may rotate about a first axis of rotation. The mating between the bristle head and the outer gear may cause the bristle head to orbit the first axis of rotation via one or more bristle paths while simultaneously completing one or more rotary movements about a second axis of rotation, which may move along the bristle paths with the bristle head.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: February 11, 2025
    Inventor: Macksoud Khan
  • Patent number: 12208481
    Abstract: A robotic device that can include an end effector configured to manipulate one or more tools that drives one or more consumable abrasive products to abrade a substrate along several different surface dimensions, wherein the end effector comprises: three linear actuators each configured to move orthogonal relative to one another and at least one tool mount coupled to one of the three linear actuators and coupled to the tool.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: January 28, 2025
    Assignee: 3M Innovative Properties Company
    Inventors: Erich A. Mielke, Brett R. Hemes
  • Patent number: 12207787
    Abstract: Debris signature-based robotic cleaning device navigation includes operating the robotic cleaning device in a first mode as part of a vacuum cycle, the device including suction ports configurable for different suction power levels and each port having a suction path along which debris entering through the suction port is collected by the device. In the first operating mode the suction ports are operated at a first suction power level. The navigation also includes changing operation of the device to a second mode and in which the suction ports are operated at a greater suction power, measuring a respective amount of debris collected through each suction port, and selecting a direction in which to navigate the robotic cleaning device based on the debris measurements.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: January 28, 2025
    Assignee: Kyndryl, Inc.
    Inventors: Caleb Miles, Shikhar Kwatra, Vijay Ekambaram, Padmanabha Venkatagiri Seshadri
  • Patent number: 12186149
    Abstract: An electric toothbrush head, including: a housing, wherein the housing is provided with a mounting cavity and a mounting hole communicated with the mounting cavity; a transmission assembly, wherein the transmission assembly is arranged in the mounting cavity and comprises a first transmission rod, a second transmission rod and a third transmission rod, one end of the first transmission rod, one end of the second transmission rod and one end of the third transmission rod are rotatably connected through a rotating shaft, and the other end of the third transmission rod is hinged in the mounting cavity; and a cleaning head, wherein the cleaning head is rotatably mounted in the mounting cavity from the mounting hole, a bottom of the cleaning head is eccentrically provided with a first rotating groove, and another end of the second transmission rod is arranged in the first rotating groove.
    Type: Grant
    Filed: May 8, 2024
    Date of Patent: January 7, 2025
    Inventor: Qiang Ruan
  • Patent number: 12171384
    Abstract: A surface cleaning apparatus adapted for wet cleaning includes a heated fluid delivery system that dispenses heated liquid and steam vapor. The heated fluid delivery system can include a heated liquid outlet and a steam vapor outlet. The apparatus can further include a liquid delivery system, and/or a recovery system.
    Type: Grant
    Filed: January 16, 2024
    Date of Patent: December 24, 2024
    Assignee: BISSELL Inc.
    Inventors: Mitchell J. DeJonge, Ryan J. Alt, Steve M. Johnson
  • Patent number: 12172340
    Abstract: A multi-layer roller stabilizing structure of a stone cutting machine, comprising: a base, a water storage basin, a slider assembly, a workbench and a bench rack. The water storage basin is disposed on the base. The slider assembly includes a roller rack and plural upper sliders and lower sliders. Two sides of the roller rack are provided with an upper roller, a middle and a lower rollers respectively. The upper and the lower sliders are respectively disposed between the upper, the middle and the lower rollers. The bench rack is disposed on the upper sliders, the lower sliders are disposed on the base. The workbench and the bench rack are linked to move with the upper sliders. The upper and the lower sliders thereby enabling offseting from top-to-bottom. The roller rack is displaced by linkage, and continuously stabilizes the workbench and extends a distance of displacement for the workbench.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: December 24, 2024
    Assignee: NEW REN YANG ENTERPRISE CORP.
    Inventor: Yueh-Ting Chen
  • Patent number: 12121199
    Abstract: A cleaner includes: a suction unit; a suction motor that generates suction force for sucking air through the suction unit and includes an impeller; a dust separation unit that includes one or more cyclone units generating cyclonic flow to separate dust from air flowing inside through the suction unit; a dust container that stores dust separated by the dust separation unit and is disposed under the suction motor; a battery disposed behind the dust container to supply power to the suction motor; and a handle disposed behind the suction motor, wherein a rotational axis of the impeller and an axis of the cyclonic flow vertically extend and an extension line from the rotational axis of the impeller passes through the one or more cyclone units.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: October 22, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Bohyun Nam, Namhee Kim, Jinju Kim, Hyeonjeong An, Jungbae Hwang
  • Patent number: 12115619
    Abstract: The present disclosure provides a magnetic grinding device and a magnetic grinding control method, and relates to the field of machining. According to the device, a magnet platform of a grinding piece fixing table is connected with an electromagnet; the grinding piece fixing table is used for fixing a to-be-ground workpiece; an output end of a programmable power supply is connected with a coil of the electromagnet; a permanent magnet grinding rod is located above the to-be-ground workpiece; and a magnetic grinding control system is connected with the programmable power supply and is used for acquiring grinding points, on the to-be-ground workpiece, of the permanent magnet grinding rod, and controlling an output voltage of the programmable power supply by utilizing a removal amount of a blank workpiece surface shape of the to-be-ground workpiece, the grinding points and a pulse width modulation (PWM) control method.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: October 15, 2024
    Assignee: ZHEJIANG NORMAL UNIVERSITY
    Inventors: Shiju E, Xinsheng He, Chunfu Gao, Chongqiu Zhou, Lanpeng Zheng, Jiajie Jiang, Huaiyi Zhang, Huadong Wang, Chengwu Wang
  • Patent number: 12108921
    Abstract: A vacuum cleaner includes a vacuum body assembly. The vacuum body assembly includes a housing having a base end, a mount hook connected to the housing, a debris container removably coupled to the housing, and a suction source. The suction source is able to draw air into the debris container. A harness assembly is removably connected to the vacuum body assembly. The vacuum cleaner is convertible between a carry mode, a stand mode, and a hang mode. The harness assembly is connected to the vacuum body assembly in the carry mode, and the harness assembly is to be worn by a user. The base end of the vacuum body assembly may rest on a support surface in the stand mode. The hook of the vacuum body assembly may hang the body assembly from a mount structure in the hang mode.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: October 8, 2024
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: David Mobarak, Justin D. Dorman, Tauhira Hoossainy
  • Patent number: 12103132
    Abstract: To detect whether barrel lids are fixed. A centrifugal barrel polishing machine (A) includes: a plurality of rotary tanks (50) that rotate planetarily; barrel lids (26) that are attachable to and detachable from the rotary tanks (50); and a plurality of clamp shafts (32) that are provided individually in the plurality of rotary tanks (50) so as to be rotatable integrally with the rotary tanks (50). Each of the clamp shafts (32) is displaceable between in a fixing form for fixing the barrel lid (26) to the rotary tank (50) and in a releasing form for releasing the fixation of the barrel lid (26). It is detected by a first detection means (40) whether the rotary tank (50) is positioned in a detection area (D) on a revolution path of the rotary tank (50), and it is detected by a second detection means (43) whether the clamp shaft (32) of the rotary tank (50) positioned in the detection area (D) is displaced to the fixing form.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: October 1, 2024
    Assignee: TIPTON CORP.
    Inventors: Yoshiyuki Kato, Yoshinari Sawada
  • Patent number: 11156393
    Abstract: An air-conditioning apparatus includes heat-source-side units each including a compressor and a heat-source-side heat exchanger, a load-side heat exchanger and a load-side expansion device, a first header, a second header, bypass expansion devices, circuit switching units, discharge pressure sensors, bypass pressure sensors, and a controller configured to control, in a heat-source-side unit in defrosting mode, the circuit switching unit in such a manner that a portion of refrigerant discharged from the compressor flows into the heat-source-side heat exchanger and configured to control, in the heat-source-side unit in defrosting mode, an opening degree of the bypass expansion device in the heat-source-side unit in such a manner that a value representing a difference between a value obtained by the discharge pressure sensor and a value obtained by the bypass pressure sensor is equal to or greater than a predetermined value.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: October 26, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Tadashi Ariyama
  • Patent number: 11118590
    Abstract: A circulator blower controller for a circulator blower of a heating, ventilation, and air conditioning (HVAC) system of a building includes an interface configured to receive a demand signal with an operating mode from a thermostat. A switching circuit selectively connects power to a tap of a motor of the circulator blower. A data store configured to store a mapping from a speed to the tap. For each tap, a processor observes power consumed by the circulator blower while power is connected to the tap by the switching circuit. The processor determines the mapping by sorting the taps based on observed power consumption. The processor selects a first speed based on the demand signal from the thermostat. The processor identifies a first tap from the mapping based on the first speed and generates the tap selection signal to control the switching circuit to connect power to the first tap.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: September 14, 2021
    Assignee: Emerson Electric Co.
    Inventors: Jeffrey N. Arensmeier, Paul Layton, Jacob Nielson
  • Patent number: 11112156
    Abstract: A refrigeration apparatus, comprising: a compressor, the compressor being provided with an air exhaust opening and an air return opening; a condenser, a first end of the condenser being connected to the air exhaust opening; an evaporator, a first end of the evaporator being connected to the air return opening, a throttling element being connected in series between a second end of the evaporator and a second end of the condenser; a first control valve, the first control valve being connected in series between the evaporator and the compressor; an air suction device, a gas port of the air suction device being connected between the first control valve and the air return opening; and a control device, the control device being connected to the compressor, the first control valve, and the air suction device.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: September 7, 2021
    Assignees: HEFEI HUALING CO., LTD., HEFEI MIDEA REFRIGERATOR CO., LTD., MIDEA GROUP CO., LTD.
    Inventors: Gaowei Xu, Huawei Zhang, Zengwu Qing, Rui Wang
  • Patent number: 11104208
    Abstract: A method for controlling torque of an air conditioner compressor is disclosed. In one example, the air conditioner compressor is a variable displacement compressor. The method may provide smooth transitions between different air conditioner compressor torques.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: August 31, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Jeffrey Allen Doering, Hugh Hamilton, Brent Jacobsen, Steve Pryor Perry
  • Patent number: 11105539
    Abstract: The present disclosure relates to a heating ventilation and air conditioning (HVAC) system. The system includes a primary heat transfer loop configured to be disposed at least partially outside of a building, and the primary heat transfer loop includes a heat exchanger, a compressor configured to compress a refrigerant, where the refrigerant is reactive, a condenser configured to receive and condense the refrigerant, and an expansion device configured to reduce a temperature of the refrigerant. The system further includes a secondary heat transfer loop configured to circulate a two-phase fluid at least partially inside the building, wherein the two-phase fluid is less reactive than the refrigerant.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 31, 2021
    Assignee: Johnson Controls Technology Company
    Inventor: Douglas A. Kester
  • Patent number: 11105620
    Abstract: A method for determining a pipe diameter of a liquid-side connection pipe in a refrigeration apparatus includes causing a computer to obtain a heating capacity, maximum heating load, and maximum cooling load; causing the computer to determine a pipe diameter of the liquid-side connection pipe by reducing a reference pipe diameter based on either a value obtained by dividing the maximum heating load by the maximum cooling load or a value obtained by subtracting the maximum heating load from the heating capacity; and installing the refrigeration apparatus using the liquid-side connection pipe having the determined pipe diameter.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 31, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuro Yamada, Yuusuke Nakagawa, Masahiro Honda
  • Patent number: 11091005
    Abstract: A method of controlling a ventilation bed having an airflow control apparatus to selectively deliver a required amount of air supplied from an air conditioning system into a region of a pad divided into a plurality of regions, a switch to select at least a portion among the regions of the pad, an airflow control portion to be rotatable and that regulates a total amount of the air discharged therefrom, includes detecting, by pressure detecting sensors, whether a pressure is applied on the regions of the pad or not, when an automatic mode is selected by a switch, determining a relative pressure ratio value of the regions of the pad, by a control portion, when the pressure is applied on the pad, and regulating the amount of the air delivered into the regions by controlling operation of the airflow control portion in accordance with the pressure ratio of the regions.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: August 17, 2021
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: SangJun Kim
  • Patent number: 11079147
    Abstract: A method for loading refrigerant fluid into an A/C system from an apparatus for recovering and regenerating refrigerant fluid includes a step of hydraulically connecting the apparatus with the A/C system by a high pressure pipe and a low pressure pipe and a step of loading refrigerant fluid present in a storage container of the apparatus into the A/C system.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: August 3, 2021
    Assignee: SNAP-ON CLIMATE SOLUTIONS S.R.L.
    Inventor: Rahhali Sanhaji
  • Patent number: 11079129
    Abstract: An air conditioner is disclosed. The air conditioner comprises: an indoor unit having an indoor heat exchanger installed therein; a first outdoor unit having a first outdoor heat exchanger and a first compressor installed therein; a second outdoor unit having a second outdoor heat exchanger and a second compressor installed therein; an auxiliary module which connects the indoor unit, the first outdoor unit, and the second outdoor unit; a first connection line by which the auxiliary module is connected to the first outdoor unit; a second connection line by which the auxiliary module is connected to the second outdoor unit; and a two-stage compression line by which the first outdoor unit is connected to the second outdoor unit.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 3, 2021
    Assignee: LG Electronics Inc.
    Inventors: Daehyoung Kim, Junseong Park, Jaehwa Jung
  • Patent number: 11073239
    Abstract: A thermostatic steam trap includes a lower casing; an upper casing secured with the lower casing; and a mechanism that is operatively secured with the lower casing and the upper casing and that includes a stack of bimetallic strips. The stack of bimetallic strips includes two opposed cantilevered portions separated by a neutral flexion axis thereof. A stem member slidably extends through the stack of bimetallic strips and the lower casing, and a valve portion includes a valve member that is operatively secured to a first end of the stem member and that selectively closes the valve portion with movement of the cantilevered portions of the stack of bimetallic strips.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: July 27, 2021
    Assignee: Velan Inc.
    Inventor: Christian Matthias Wingerath