Patents Assigned to Mettler-Toledo
  • Patent number: 12352617
    Abstract: Methods and systems for eccentric load error correction are disclosed. A plurality of weighing data sets for a weight having a mass value are obtained, where the weight is loaded at different positions on a weighing platform of a weighing device. Differences between each of the weighing data sets and the average value of the plurality of weighing data sets or the mass value of the weight are calculated. Sensor correction coefficients are calculated and updated when the maximum absolute value of the differences exceeds a pre-set threshold. The weighing data sets are updated. The above steps are repeated until the absolute values of all the differences are less than the pre-set threshold.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: July 8, 2025
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler-Toledo (Changzhou) Precision Instruments Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Shenhui Wang, Yujuan Zha, Song Zhang, Genjun Ji, Qiang Fu, Jinkang Han, Jinli Li
  • Patent number: 12332109
    Abstract: A method for configuring a calibration mechanism in a force sensor (100) has the steps of: coupling an end of the calibration lever (1071) to a loading end (102) of the force sensor; adjusting, in a no-load condition, the center of gravity (G0) of the unloaded calibration lever (1071), so that the center of gravity (G0) lies on a horizontal line (H) through the center of a calibration lever fulcrum (1031) at a fixed end (103) thereof; and adjusting, in a full-load condition, the center of gravity (G1) of the calibration lever (1071) loaded with the calibration weight (106), so that the center of gravity (G1) lies on the horizontal line (H) through the center of the calibration lever fulcrum. The calibration error caused by inclination in the force sensor is reduced by practice of this method.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: June 17, 2025
    Assignees: Mettler-Toledo (Changzhou) Precision Instruments Ltd., Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler Toledo International Trading (Shanghai) Co., Ltd
    Inventors: Lei Xu, Jean Christophe Emery, Li Yang
  • Patent number: 12313443
    Abstract: A method of weighing using a scale (10) comprises the steps of: recognizing at least one of a plurality of objects placed within an object recognition area (A) of a platform (20) of the scale (10), and weighing the plurality of objects placed on the platform (20) of the scale (10) to determine a total weight of the plurality of objects. A weighing device (10) comprises the platform (20) configured as a plane, and utilizes the aforementioned weighing method. The method of weighing is advantageous in that it reduces the difficulty of object recognition using an algorithm by increasing the degree to which the object on the weighing platform fits the algorithm, reduces the complexity of the operation flow and the time required, and effectively increases the precision and accuracy of object recognition.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: May 27, 2025
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler-Toledo (Changzhou) Precision Instruments Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Song Zhang, Kan Liu, Shenhui Wang, Zhiqiang Wang, Kai Yin
  • Patent number: 12292324
    Abstract: These disclosures provide a weight stability control method for a deadweight force standard machine. For each weight in a sequence until all weights are loaded: weight platform is relatively rapidly moved downwards from an initial position, lifting a first-stage weight by a weight disk, and starting to load the first-stage weight starts; the first-stage weight is displaced relatively slowly when the first-stage weight communicates with a second-stage weight via corresponding lifting components for the first time; after the first-stage weight is completely separated from the second-stage weight, relatively rapidly displacing the weight platform downwards again until a gap between the first-stage weight and the second-stage weight reaches half of a pre-set gap value. The method provides control over the stability of the weights, effectively solving the weight shaking problem and improving testing efficiency.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: May 6, 2025
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler-Toledo (Changzhon) Precision Instruments Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Hanqing Xu, Leiyue Zhang
  • Patent number: 12276539
    Abstract: A method and device are provided for diagnosing a weighing system. In the method, the weighing system acquires an intrinsic parameter, a status parameter, and an operating parameter of various components of the weighing system, environmental parameters of the weighing system application, and communication data and interaction data among all the components. A first-level prompt is sent when the status of any of the components is abnormal, such that the system stops operating. A second-level prompt is sent when the status of each of the components is normal and the service life status of at least one of the components reaches a preset threshold. A third-level prompt is sent when the status of each of the components is normal and a system performance abnormality event is identified for the performance status of the system. A fourth-level prompt is sent when the status of each of the components is normal.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 15, 2025
    Assignees: Mettler-Toledo (Changzhou) Precision Instruments Ltd, Mettler Toledo (Changzhou) Measurement Technology Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Jianqiang Yang, Lifeng Cai, Jianwei Wu
  • Patent number: 12258217
    Abstract: A sorting device operates to shorten or lengthen a length of an upper portion of a travel path for a conveyor belt by reciprocating movement of sliding support surfaces at least partially supporting the conveyor belt. The reciprocating movement of the sliding support surfaces caused by rotational movement of a connected pivoting mechanism, which may be operated by an actuator located outside of an area defined by the travel path for the conveyor belt.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: March 25, 2025
    Assignee: Mettler-Toledo, LLC
    Inventors: Christopher Wayne Sisemore, Michael Scott Evans, Kristofer Howell Loper, Willy Crouch
  • Patent number: 12246315
    Abstract: Described are exemplary embodiments of a handheld, powered positive displacement pipette assembly, including a plurality of syringes of different volumes and a powered positive displacement pipette having unique mechanisms for the retention, identification, operation, and ejection of said syringes.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: March 11, 2025
    Assignee: Mettler-Toledo Rainin, LLC
    Inventors: Richard Hill, Michael McNaul, Thomas James McPherson, Stephen Grimwade, German Arciniegas
  • Patent number: 12228244
    Abstract: A mechanical apparatus levelling mechanism has a base (10), an adjusting screw rod (20), an adjusting plate (30) and a support plate (40). The adjusting screw rod penetrates into the adjusting plate in an axial direction and is connected to the base. The adjusting plate is located on the base; the support plate is mounted at a top end of the adjusting screw rod and is located above the adjusting plate; and the adjusting plate rotates to drive the adjusting screw rod to rotate, such that the support plate is adjusted vertically. This simplifies the operation procedure, improving the assembly accuracy and improving the working efficiency. The method is simple to operate. These adjusting mechanisms are convenient to move and simple to adjust, are time-saving and labour-saving, and have adjustment dimensions that can be quantified. Moreover, the installation is simple, and the adjusting mechanisms themselves can be reused.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: February 18, 2025
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler-Toledo (Changzhou) Precision Instruments Ltd., Mettler Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Shaowen Zheng, Dengyou Chen, Huaqiang Hui, Gang Wu, Qingsong Zhao, Long Qian, Pengbo Hao
  • Patent number: 12214344
    Abstract: Described are exemplary embodiments of a handheld, powered positive displacement pipette assembly, including a plurality of syringes of different volumes and a powered positive displacement pipette having unique mechanisms for the retention, identification, operation, and ejection of said syringes.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: February 4, 2025
    Assignee: Mettler-Toledo Rainin, LLC
    Inventors: Richard Hill, Michael McNaul, Thomas James McPherson, Stephen Grimwade, German Arciniegas
  • Patent number: D1060075
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: February 4, 2025
    Assignee: METTLER-TOLEDO GMBH
    Inventors: Fred Held, Thilo Hogrebe, Sandra Ehrbar, Alice Buchmann, Michael Meyer, Chen Xinghong, Wang Heqiao, Zhou Mi, Xiong Qinghua
  • Patent number: D1060076
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: February 4, 2025
    Assignee: METTLER-TOLEDO GMBH
    Inventors: Fred Held, Thilo Hogrebe, Sandra Ehrbar, Alice Buchmann, Aurelius Rindlisbacher, Chen Xinghong, Wang Heqiao, Zhou Mi, Xiong Qinghua
  • Patent number: D1060079
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: February 4, 2025
    Assignee: METTLER-TOLEDO GMBH
    Inventors: Fred Held, Thilo Hogrebe, Sandra Ehrbar, Alice Buchmann, Chen Xinghong, Wang Heqiao, Zhou Mi, Xiong Qinghua
  • Patent number: D1060082
    Type: Grant
    Filed: June 22, 2023
    Date of Patent: February 4, 2025
    Assignee: METTLER-TOLEDO GMBH
    Inventors: Manfred Stefan Alexander Held, Thilo Hogrebe, Sandra Jasmin Ehrbar, Alice Buchmann, Xinghong Chen, Heqiao Wang, Mi Zhou, Qinghua Xiong
  • Patent number: D1060084
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: February 4, 2025
    Assignee: METTLER-TOLEDO GMBH
    Inventors: Manfred Stefan Alexander Held, Thilo Hogrebe, Sandra Jasmin Ehrbar, Alice Buchmann, Xinghong Chen, Heqiao Wang, Mi Zhou, Qinghua Xiong
  • Patent number: D1061704
    Type: Grant
    Filed: November 27, 2023
    Date of Patent: February 11, 2025
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler-Toledo (Changzhou) Precision Instruments Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Yinxiu Zhang, Pengbo Hao
  • Patent number: D1071765
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: April 22, 2025
    Assignee: Mettler-Toledo GmbH
    Inventors: Fred Held, Thilo Hogrebe, Sandra Ehrbar, Alice Buchmann, Beat Meister, Chen Xinghong, Wang Heqiao, Zhou Mi, Xiong Qinghua
  • Patent number: D1079510
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: June 17, 2025
    Assignee: Mettler-Toledo GmbH
    Inventors: Fred Held, Thilo Hogrebe, Sandra Ehrbar, Xinghong Chen, Wang Heqiao, Mi Zhou, Qinghua Xiong
  • Patent number: D1078512
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: June 10, 2025
    Assignee: Mettler-Toledo GmbH
    Inventors: Fred Held, Aurelius Rindlisbacher
  • Patent number: D1085922
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: July 29, 2025
    Assignee: Mettler-Toledo GmbH
    Inventors: Fred Held, Aurelius Rindlisbacher
  • Patent number: D1087805
    Type: Grant
    Filed: April 4, 2024
    Date of Patent: August 12, 2025
    Assignee: Mettler-Toledo GmbH
    Inventor: Aurelius Rindlisbacher