With Detail Of Overload Protection Patents (Class 73/862.382)
  • Patent number: 11473985
    Abstract: The disclosure relates to a load cell for a linear actuator. The load cell configured to measure a force exerted thereon by a rotary motor, and includes a spring element, a hollow portion and at least one strain gauge. The spring element includes a first side and a second side. The first side and the second side are opposite to each other. The hollow portion passes through the spring element. The at least one strain gauge is secured on the spring element and located between the first side and the second side, wherein when the force is exerted on the spring element when the rotary motor is driven to move along the first direction, the second side is moved relative to the first side, the spring element is deformed, and the at least one strain gauge changes shape, so that the force is measured and standardized under a specific range.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: October 18, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yu-Xian Huang, Hsu-Wei Huang
  • Patent number: 11009415
    Abstract: The invention relates to a device (2). Said device has two machine parts (4, 6) that are movable relative to one another and are connected to each other by a supply line (8) along which a sensor line (10) is mounted for measuring torsion of the supply line (8); the sensor line (10) is connected to a measurement unit (11) which is designed in such a way that an electrical parameter (P) of the sensor line (10) is measured, the torsion being ascertained using said parameter (P). The invention further relates to a corresponding supply line (8), a sensor line (10) and a torsion measurement method.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: May 18, 2021
    Assignee: LEONI Kabel GmbH
    Inventors: Erwin Köppendörfer, Johannes Nachtrab
  • Patent number: 10860047
    Abstract: An accelerator device includes a pedal pad and a strain gauge. When a driver of a vehicle having the accelerator device depresses the pedal pad, the pedal pad is deformed in a direction of a blank arrow. The strain gauge senses the displacement amount of the pedal pad in the direction of the blank arrow and outputs an electric signal, which corresponds to the displacement amount, to an outside as the depression amount of the accelerator device. When the driver removes a foot from the pedal pad, the pedal pad returns to a state of the pedal pad that is not depressed by the driver. Therefore, it is possible to limit occurrence of that the depression amount of the pedal pad becomes an unintended value due to, for example, catching of the pedal pad by a floor mat. As a result, the accelerator device can reliably sense the depression amount.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: December 8, 2020
    Assignee: DENSO CORPORATION
    Inventors: Noriyasu Kihara, Haruhiko Suzuki
  • Patent number: 10732060
    Abstract: An example device includes a rigid plate, an inner element, a plurality of connecting flexural elements coupled between the inner element and rigid plate, and a hardstop that extends through the inner element and couples to the rigid plate. The inner element has a plurality of reflective surface areas that are configured to reflect light to a sensor. The plurality of connecting flexural elements allow the inner element to move relative to rigid plate. The hardstop contacts the inner element when a load applied on the device exceeds a threshold load.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: August 4, 2020
    Assignee: X Development LLC
    Inventor: Marc Strauss
  • Patent number: 10444098
    Abstract: Provided is a torque sensor that includes: a bearing that is provided with an inner ring and an outer ring that are supported so as to be relatively movable only in the direction of rotation about a predetermined axis; a connecting member that is provided with fixing sections that are respectively fixed to the inner ring and the outer ring and a strain generation section that connects between the fixing sections; and a strain sensor that is disposed on the connecting member so as to be capable of detecting a strain at least in the circumferential direction.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: October 15, 2019
    Assignee: Fanuc Corporation
    Inventor: Kazutaka Nakayama
  • Patent number: 9903772
    Abstract: A load cell has a longitudinal body including a bending beam axially between a force input element and a force output element, strain gages applied on strainable measuring parts of the bending beam, a hermetically sealed enclosure outside around the strain gages and the strainable measuring parts, and an overload protection arrangement including an overload beam in a recess in the bending beam, a receiving hole partially in the overload beam, and a fitting pin received in the receiving hole so that a defined gap is formed between the fitting pin and an adjacent stop surface in the recess of the bending beam. In further embodiments, the enclosure includes a stiff pipe sleeve and ring elements with flexible membranes connecting the sleeve to the longitudinal body, and a mounting end face of the longitudinal body has centering pins in holes and an O-ring in a groove.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: February 27, 2018
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Arno Schmittner, Ralf Scherer
  • Patent number: 9417117
    Abstract: A weighing device is equipped with a first overload protection mechanism and a second overload protection mechanism. The first overload protection mechanism includes a first support portion disposed on a fixing member and a first section disposed on a connecting member. The second overload protection mechanism includes a second support portion disposed on the fixing member and a second section disposed on the connecting member. When a first load acts on a weigh hopper, the first support portion supports the first section from below. When a second load greater than the first load acts on the weigh hopper, the second support portion supports the second section from above at the same time that the first support portion supports the first section.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: August 16, 2016
    Assignee: ISHIDA CO., LTD.
    Inventors: Mikio Kishikawa, Shinji Takeichi
  • Patent number: 9400116
    Abstract: The present invention concerns a device (2) for an extractor hood (1) comprising a tubular portion (21), having a cross section from 5000 to 32000 mm2, wherein an air flow detector (23) is arranged in said tubular portion (21), for detecting the air flow in said tubular portion (21).
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: July 26, 2016
    Assignee: ELICA S.P.A.
    Inventor: Francesco Casoli
  • Patent number: 9164003
    Abstract: A force sensor system includes a housing assembly, a sensor, an actuator, and an actuator travel stop. The sensor is disposed within the housing assembly, and is configured to generate a sensor signal representative of a force supplied to the sensor. The actuator is disposed at least partially within, and is movable relative to, the housing assembly. The actuator extends from the housing assembly and is adapted to receive an input force. The actuator is configured, upon receipt of the input force, to move toward, and transfer the input force to, the sensor. The actuator travel stop is disposed within the housing assembly, and between the housing assembly and a portion of the actuator. The actuator travel stop is configured to be selectively engaged by the actuator and, upon engagement by the actuator, to limit movement of the actuator toward, and the input force transferred to, the sensor.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: October 20, 2015
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventor: Richard A. Wade
  • Publication number: 20140109693
    Abstract: A pressure sensing device includes a sensor chip having a sensing portion, a bonding wire electrically connected with the sensor chip, a protection section, and a package. The sensor chip detects a pressure with the sensing portion and generates a signal corresponding to the detected pressure. The protection section includes a first protection section and a second protection section. The first protection section includes a predetermined portion, which seals the sensing portion, and a remaining portion other than the predetermined portion. The second protection section is arranged on the remaining portion of the first protection section and seals at least the bonding wire so that the bonding wire is not exposed to an outside.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 24, 2014
    Applicant: DENSO CORPORATION
    Inventor: Makoto Sakai
  • Publication number: 20140102222
    Abstract: A force sensor system includes a housing assembly, a sensor, an actuator, and an actuator travel stop. The sensor is disposed within the housing assembly, and is configured to generate a sensor signal representative of a force supplied to the sensor. The actuator is disposed at least partially within, and is movable relative to, the housing assembly. The actuator extends from the housing assembly and is adapted to receive an input force. The actuator is configured, upon receipt of the input force, to move toward, and transfer the input force to, the sensor. The actuator travel stop is disposed within the housing assembly, and between the housing assembly and a portion of the actuator. The actuator travel stop is configured to be selectively engaged by the actuator and, upon engagement by the actuator, to limit movement of the actuator toward, and the input force transferred to, the sensor.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Richard A. Wade
  • Publication number: 20130269449
    Abstract: A load cell includes a horizontal upper beam; a lower beam extending parallel with the upper beam; a fastening section connecting one end of the upper beam to the lower beam and is fastened to a stationary object; a movable section which connects the upper beam and the lower beam and is displaced vertically by a load applied to the movable section 5; and a cylindrical stopper having a circular cross-section. The fastening section has a first circular hole. The movable section has a second circular hole concentric with the first circular hole. A base end portion of the stopper is fastened to the first circular hole and a tip of the stopper member 7 is located at an inner side of the second circular hole such that there is a space of a specified width between the tip and an inner surface of the second hole.
    Type: Application
    Filed: October 15, 2010
    Publication date: October 17, 2013
    Applicant: Yamato Scale Co., Ltd.
    Inventors: Takayuki Nagai, Makoto Makabe
  • Patent number: 7444889
    Abstract: To provide a load cell, having a force transducer for recording tensile and compressive forces that are to be determined, which can be produced more economically and, in particular, can also be handled more easily during the adjustment of the sensor arrangement than hitherto, the force transducer comprising a flectionally elastic element and a force introduction part acting on the flectionally elastic element, having a sensor arrangement for detecting a deformation of the flectionally elastic element and the transformation thereof into an electric weighing signal, and having a housing receiving the force transducer and the sensor arrangement, with a flectionally rigid wall part, on which the flectionally elastic element of the force transducer is held, it is proposed that the sensor arrangement be arranged on a separate carrier, which is held on the flectionally rigid wall part and/or a flectionally rigid base part region of the housing
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: November 4, 2008
    Assignee: BAG Bizerba Automotive GmbH
    Inventors: Rolf-Dieter Wehinger, Frank Metzger, Joerg Baltinger, Thomas Plocher
  • Publication number: 20080181590
    Abstract: A heating device such as a heat gun or heat unit which includes a surface temperature sensor to measure the surface temperature of the work piece being heated.
    Type: Application
    Filed: January 30, 2007
    Publication date: July 31, 2008
    Applicant: MASTER APPLIANCE CORP.
    Inventors: Arthur S. Radwill, Paul L. Monet, Dan J. Naughton, Charles J. Benedict, John R. Brott
  • Patent number: 7168333
    Abstract: A system and method of monitoring a pressurized container having an auxiliary device are provided. The system includes a sensor operable to provide a signal representative of at least one operating condition of the pressurized container. The system also includes a control operable to receive the signal from the sensor and generate a warning when the sensed operating condition will impact the operation of the auxiliary device.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: January 30, 2007
    Assignee: BS&B Safety Systems Limited
    Inventors: Geof Brazier, John P. Clark, III, John E. Smallwood
  • Patent number: 7082845
    Abstract: A device having integrally formed channels that prevent forces on a sensor cable from damaging a load cell such that if the cable is overloaded it will break but the strain gauge within the load cell will be protected.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: August 1, 2006
    Assignee: Weigh Point Incorporated
    Inventor: Gerald Simons
  • Patent number: 6948386
    Abstract: An over-travel protection device is provided for placing in a load path between a load cell and an object being weighed. The device has a first member positioned to be in the load path and a second member also positioned to be in the load path. The second member is arranged to cooperate with the first member to transfer load force from the object to the load cell. The first and second members define a space between one another and a compressible member is disposed in the space between the first member and the second member. A retaining member is adapted to limit separation displacement between the first and second members.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: September 27, 2005
    Assignee: DaimlerChrysler Corporation
    Inventors: Jere R Lansinger, D. Scott Bittinger
  • Patent number: 6923062
    Abstract: For a sensor whose sensor structure is implemented in a micromechanical structural component and which has parts which are movable in relation to the stationary substrate of the structural component, and which also includes an unsupported a seismic mass, a spring system having at least one spring, the seismic mass being connected to the substrate through the spring system, and an overload protection to limit the deflection of the spring system and the seismic mass in at least one direction, and an arrangement for detecting the deflections of the spring system and the seismic mass, whereby the impact forces may be reduced to prevent conchoidal breaks and resulting incipient damage to the sensor structure, as well as formation of particles. To that end, at least one two-dimensional stop for at least one moving part of the sensor structure is provided as overload protection.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: August 2, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Jochen Franz, Oliver Kohn, Frank Henning, Matthias Maute
  • Patent number: 6912920
    Abstract: A seat frame-based occupant weight estimation load cell transfers the seat force to a floor bracket through a spherical ball and a ball actuator. The ball is in contact with the force sensor and has minimal contact area with either the ball actuator or the force sensor so that the transfer of forces not functionally related to occupant weight is minimized. The ball actuator is coupled to the seat frame, and a sensor bracket aligns the ball actuator with respect to the sensor. The sensor bracket is domed to securely anchor the seat to the floor bracket in the event of an inverse overload. A spring disposed between the ball actuator and the dome of the sensor bracket biases the ball against the force sensor to preload the force sensor for enabling off-loading detection.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: July 5, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Duane D. Fortune, Morgan D. Murphy
  • Publication number: 20050132818
    Abstract: A device having integrally formed channels that prevent forces on a sensor cable from damaging a load cell such that if the cable is overloaded it will break but the strain gauge within the load cell will be protected.
    Type: Application
    Filed: September 7, 2004
    Publication date: June 23, 2005
    Inventor: Gerald Simons
  • Patent number: 6854343
    Abstract: Torsion in a shaft with two portions or a torsion bar caused by a torque is initially converted into an angular movement of a disc-shaped movement converter fastened to the first portion. A carrier surrounding the shaft as a sleeve is fastened to the second portion and converts the angular movement into an axial translation movement of the carrier which can be detected by a contactless displacement sensor.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 15, 2005
    Assignee: Tyco Electronics AMP GmbH
    Inventors: Nouhad Bachnak, Stefan Stross
  • Publication number: 20050022615
    Abstract: A seat frame-based occupant weight estimation load cell transfers the seat force to a floor bracket through a spherical ball and a ball actuator. The ball is in contact with the force sensor and has minimal contact area with either the ball actuator or the force sensor so that the transfer of forces not functionally related to occupant weight is minimized. The ball actuator is coupled to the seat frame, and a sensor bracket aligns the ball actuator with respect to the sensor. The sensor bracket is domed to securely anchor the seat to the floor bracket in the event of an inverse overload. A spring disposed between the ball actuator and the dome of the sensor bracket biases the ball against the force sensor to preload the force sensor for enabling off-loading detection.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 3, 2005
    Inventors: Duane Fortune, Morgan Murphy
  • Patent number: 6769897
    Abstract: Device for monitoring force and pressure in injection molding machines, with at least one sensor for measuring the deformation of a machine part that is deformed by the closing or injection pressure, wherein a supporting body (2) is provided that relieves the machine part (3) monitored by the sensor (1) as soon as the closing or injection pressure exceeds a certain value that is less than half its maximum value.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 3, 2004
    Assignee: Engel Maschinenbau Gesellschaft m.b.H.
    Inventors: Stefan Eppich, Alfred Ellinger
  • Publication number: 20030024325
    Abstract: Torsion in a shaft with two portions or a torsion bar caused by a torque is initially converted into an angular movement of a disc-shaped movement converter fastened to the first portion. A carrier surrounding the shaft as a sleeve is fastened to the second portion and converts the angular movement into an axial translation movement of the carrier which can be detected by a contactless displacement sensor.
    Type: Application
    Filed: June 10, 2002
    Publication date: February 6, 2003
    Inventors: Nouhad Bachnak, Stefan Stross
  • Patent number: 6487908
    Abstract: A micromachined device has a first body suspended over a substrate in a plane parallel to the substrate and movable in the plane in a first direction relative to the substrate. A driver moves the first body in the first direction. A stop member, anchored to the substrate, limits motion of the body in the plane in a direction perpendicular to the first direction, and in a direction orthogonal to the plane and away from the substrate.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: December 3, 2002
    Assignee: Analog Devices, Inc.
    Inventors: John A. Geen, Donald W. Carow