Patents Examined by Juan J Campos, Jr.
  • Patent number: 11220414
    Abstract: A stabilizer leg arrangement with a stabilizer leg (25), which is extensible by a hydraulic cylinder (27) into a supporting position in contact with the ground. A piston (32) divides the internal space of the hydraulic cylinder into first and second chambers (34, 35), wherein these chambers are configured to come into fluid communication with each other through a flow channel (41) in the hydraulic cylinder when the piston reaches an advanced end position and abuts against a stop surface. An electronic control device (72) is configured to establish information as to whether or not the stabilizer leg is in the supporting position while taking into account a measuring value (V1) related to the hydraulic pressure in the first chamber (34). The invention also relates to a corresponding method and a mobile working machine comprising such a stabilizer leg arrangement.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 11, 2022
    Assignee: Hiab AB
    Inventors: Erik Nylander, Mats Lindström, Lars Rydahl
  • Patent number: 11208304
    Abstract: A limited rotation slewing ring crane may include a pedestal, a column rotatively coupled, about a first rotation axis, to the pedestal by a slewing ring rotative coupling, and stops for limiting the relative rotation of the column with respect to the pedestal. The crane may also include a rotative sensor adapted to measure a rotation angle of the column with respect to the pedestal. The rotation sensor may include a tubular body axially extending from the base of the column, a stationary body connected to the pedestal and a wheel. A second rotation axis of the wheel may be offset with respect to a first rotation axis of the column with respect to the pedestal.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: December 28, 2021
    Assignee: FASSI GRU S.P.A.
    Inventors: Rossano Ceresoli, Piantoni Giorgio
  • Patent number: 11198596
    Abstract: The present invention addresses the problem of providing a crane that can ascertain the state of an area surrounding a hook or a cargo suspended on the hook and that can simultaneously ascertain a braking distance during stopping operations. The invention comprises: drive devices 31-34 that move a boom 7; a control apparatus 20 that controls the operation state of the drive devices 31-34; a camera 41 that photographs, from the distal end portion of the boom 7, an area below said portion; and image display devices 43 and 65 that display the image photographed by the camera 41. For the purpose of stopping the movement of the boom 7, the control apparatus 20 filters basic control signals S for the drive devices 31-34 to create filtered control signals Sf, controls the drive devices 31-34 on the basis of the filtered control signals Sf, estimates the braking distance for the boom 7, and displays the same on the image display devices 43 and 65.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: December 14, 2021
    Assignee: TADANO LTD.
    Inventors: Kazuma Mizuki, Hiroyuki Hayashi
  • Patent number: 11192762
    Abstract: The present disclosure relates to a crane, in particular an offshore crane, having a slewing gear and a hydraulic slewing gear drive, wherein the slewing gear is held in its position via a holding torque applied by the hydraulic slewing gear drive, and wherein an overload safety device is provided having at least one detection means for detecting the outreach and/or the position of the crane hook and having at least one pressure relief valve, with the system pressure applied to the hydraulic slewing gear drive via at least one pressure relief valve can be regulated in dependence on the outreach and/or on the position of the crane hook.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 7, 2021
    Assignee: LIEBHERR-WERK NENZING GMBH
    Inventors: Wilhelm Kraeutler, Eugen Schobesberger
  • Patent number: 11180352
    Abstract: Provided is a crane with a main boom and a back mast, of which at least one comprises a first mast upper part comprising at least one mast section and a first mast lower part comprising at least one mast section, and a first mast tilting. The first mast tilting member is arranged between the first mast upper part and the first mast lower part, and has a straight hoisting state wherein the first mast upper part and the first mast lower part are essentially in line with each other, and a tilted hoisting state wherein the first mast upper part is tilted with respect to the first mast lower part.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 23, 2021
    Assignee: Mammoet Engineering B.V.
    Inventors: Pieter Maria Stoof, Wessel Helmens, Anton Adrian Joachim Van Den Broek
  • Patent number: 11180349
    Abstract: A crane vehicle includes: an operation unit; a winch device configured to operate at a speed corresponding to an operation amount of the operation unit; a weight detection unit; a storage unit configured to store a time-weight target characteristic indicating a target in temporal change of a detected value at the weight detection unit for a maximum operation amount input from the operation unit; and a control unit configured to perform feedback control of an operation speed of the winch device such that the detected value follows the time-weight target characteristic in a case where the maximum operation amount is input from the operation unit, the control unit being configured to set the operation speed of the winch device at the speed corresponding to the operation amount of the operation unit, in a case where fluctuation of the detected value has converged in a predetermined range.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 23, 2021
    Assignee: TADANO LTD.
    Inventor: Kazuo Mitani
  • Patent number: 11174134
    Abstract: The invention relates to an apparatus for compensating diagonal pull in cranes having at least one boom, having a boom drive for adjusting an angle and/or a length of the boom and/or for traveling a trolley, and having a control/regulation apparatus for controlling/regulating the boom drive. The invention is further directed to a crane having a corresponding apparatus.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: November 16, 2021
    Assignee: Liebherr-Werk Biberach GmbH
    Inventor: Alexander Strähle
  • Patent number: 11174913
    Abstract: A transmission belt includes: a plurality of elements, each having a plate shape, arranged sequentially in a ring manner; and a single-line ring having a belt shape and binding the elements together in a ring. Further, each of the elements includes pillar portions so that the single-line ring is inserted and a locking edge, provided on one surface in a plate thickness direction of the element, indicating a boundary region from which a plate thickness of the element changes, the pillar portions have respective ends, the ends having portions in a curved shape each having a predetermined curvature radius along a plane parallel to the single-line ring, and the portions in the curved shape include a first portion being formed on a front side at one end of the inner space, and a second portion being formed on a rear side at another end of the inner space.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: November 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yu Inase
  • Patent number: 11167962
    Abstract: A crane having an undercarriage, a superstructure pivotable about a slewing axis relative to the undercarriage, a counterweight unit and a counterweight adjustment device. The counterweight adjustment device includes a telescopic frame which is fastened to the superstructure and has a telescopic longitudinal member, a counterweight unit arranged to be displaceable along the frame, a drive unit for displacing the counterweight unit and a kinematic unit to telescope the frame in a driven manner. A jetty is fastened to a rear end, remote from the slewing axis, of the longitudinal member, the counterweight unit is displaceable along the frame in the region of the superstructure as far as the jetty, the counterweight unit is able to be fastened to the jetty and the counterweight unit is able to be telescoped in and out on the jetty with the frame.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 9, 2021
    Assignee: Tadano Demag GmbH
    Inventors: Alfons Weckbecker, Martin Zwifka, Thorsten Helwes, Fritz-Botho Köster
  • Patent number: 11167960
    Abstract: A gantry crane for a container includes a portal main frame, a traveling mechanism, a translation mechanism, a hoisting mechanism and a spreader assembly. The spreader assembly includes a spreader body, two telescopic girders and a drive assembly. The drive assembly includes a cam, a sliding way and two sliding blocks. Two arc-shaped first sliding grooves are circumferentially provided on the cam. A middle of the sliding way is rotatably connected with the cam. Two sides of connection of the sliding way and the cam on the sliding way are provided with a second sliding groove. Each sliding block matches with the first and second sliding grooves, and can slide back and forth along them. The telescopic beams are slidably connected to the spreader body, and are symmetrically provided and connected to the sliding blocks, respectively.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: November 9, 2021
    Assignee: SOUTHWEST JIAOTONG UNIVERSITY
    Inventors: Zeqiang Zhang, Peiyu Xu, Silu Liu, Mengke Xie, Yu Zhang, Feng Chen
  • Patent number: 11162563
    Abstract: To provide a tensioner capable of keeping oil pressure in an oil pressure chamber stable with a simple structure. The tensioner is equipped with a pressure adjusting mechanism that adjusts oil pressure in the oil pressure chamber and includes an adjustment space formed in a housing and communicating with the oil pressure chamber, a movable member disposed such as to be movable to and from the oil pressure chamber, and a pressure adjusting biasing unit that biases the movable member toward the oil pressure chamber. A liquid tight seal is maintained between the movable member and an inner wall of the adjustment space, between a position where the movable member has moved closest to the oil pressure chamber and a position where the movable member is farthest from the oil pressure chamber.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: November 2, 2021
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventors: Masanori Watanabe, Tomohiro Fuse, Yoshihiro Furubayashi
  • Patent number: 11156272
    Abstract: The present invention provides a chain tensioner that automatically adjusts flow path resistance inside an oil leak path with a simple configuration to make it possible to reduce a change in damping characteristics resulting from a change in oil temperature and reduce an increase in manufacturing cost. In the chain tensioner, a pressure oil chamber is provided with an oil leak path communicating with an outside of the chain tensioner, the oil leak path contains a movable piece which is movable with a temperature-dependent deformation member that deforms according to oil temperature, and the movable piece is formed into a shape that changes flow path resistance of the oil leak path according to a position to which the movable piece is moved.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: October 26, 2021
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventors: Masanori Watanabe, Osamu Yoshida
  • Patent number: 11155447
    Abstract: A marine knuckle boom crane includes a crane housing which is rotational relative to a pedestal about a vertical rotation axis and a knuckle boom assembly attached to the crane housing. The knuckle boom assembly includes a main boom, the inner end of which is connected pivotably about a first horizontal pivot axis to the crane housing; and a jib, the inner end of which is connected pivotably about a second horizontal pivot axis to the outer end of the main boom, wherein the jib is pivotable at least between an extended position in which the tip extends mainly forward from the main boom, and a folded position in which the jib is folded back, essentially parallel along the main boom. In order to position the jib with respect to the main boom, a tensioning member is provided extending between the crane housing and a guide structure connected to the jib.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: October 26, 2021
    Assignee: ITREC B.V.
    Inventors: Joop Roodenburg, Hendrikus Jacobus Weterings
  • Patent number: 11148915
    Abstract: A boom assembly for a pipelayer includes a boom member having a first end and a second end. The boom assembly includes a first boom block adapted to be removably coupled to the second end of the boom member. The boom assembly includes a second boom block adapted to be removably coupled to a chassis of the pipelayer. The boom assembly includes a first hook block adapted to be removably coupled to the second end of the boom member. The boom assembly includes a second hook block adapted to be operably coupled to the first hook block. The boom assembly also includes a first lifting connector disposed on the first boom block and a second lifting connector disposed on the first hook block. Each of the first lifting connector and the second lifting connector is adapted to removably receive a lifting strap therethrough.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: October 19, 2021
    Assignee: Caterpillar Inc.
    Inventor: Curtis John Caldwell
  • Patent number: 11142437
    Abstract: A first width direction bending portion bendably connects a portion of a guy link on a distal end side with respect to a first link portion to the first link portion in a width direction. When the guy link is in a stored state, the portion of the guy link located on the distal end side with respect to the first width direction bending portion is disposed outside the first link portion in the width direction. When the guy link is in a stored state, at least a portion of the guy link is disposed on the outer side in the width direction than a front strut and on a back surface or a side surface of a lower jib.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: October 12, 2021
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Shingo Kurihara
  • Patent number: 11124393
    Abstract: A lifting apparatus for a facility combining magnetic resonance imaging apparatus and radiotherapy apparatus inside a purpose-built structure having a fixed wall, the lifting apparatus comprising a wall-mounted articulating jib crane which is selectively moveable between a stowed state and a free state in which it is operable as a crane, in which substantially all of the load-bearing parts of the crane are made of non-ferromagnetic metal, and in which guides are mounted to the wall to receive and to releasably hold the crane in a fixed position relative to the wall when the crane is in the stowed state.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 21, 2021
    Assignee: Elekta AB (Publ)
    Inventor: Sujitkumar Hemanthkumar
  • Patent number: 11111114
    Abstract: Expandable heavy equipment 1, comprising a first frame element 5, a connector 11, at least one elongated pull element 14, and further frame elements 7. The pull element 14 is connected to the first frame element 5 with a first coupler 31 and to one 9 of the further frame elements 7 with a second coupler 35. The pull element 14 is in a folded state in a transport condition and in an extended state in a working condition. The pull element 14 comprises load bearing fibers/fibres 141 extending from the first coupler 31 to the second coupler 35. The pull element 14 comprises at least one flexible part 43 and at least two stiff parts 45. The flexible part 43 has a lower bending stiffness than the two stiff parts 45 and enables the pull element 14 to be arranged in the folded state.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: September 7, 2021
    Assignee: Cabin Air Group B.V.
    Inventor: Rinze Jan Van Der Schuit
  • Patent number: 11111115
    Abstract: A wear pad for a telescoping boom assembly includes a wear pad body having a first surface and a second surface oppositely positioned from the first surface and spaced from the first surface by a height of the wear pad body, a groove formed in one of the first surface and the second surface, the groove extending along a length of the wear pad body, and an insert positioned in the groove such that a portion of the insert projects outwardly from the groove. The telescoping boom assembly includes an inner boom section and an immediately adjacent outer boom section. The wear pad is configured to be installed between the inner and outer boom sections.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: September 7, 2021
    Assignee: Maniitowoc Crane Companies, LLC
    Inventors: Bradley Charles Calaman, John Fremont Benton
  • Patent number: 11104553
    Abstract: A crawler crane includes a lower traveling body, and the lower traveling body includes: a car body; a right crawler device and a left crawler device; a front side connecting portion; and a rear side connecting portion, the right crawler device includes a right crawler frame, the left crawler device includes a left crawler frame, the front side connecting portion is separably joined to each of a front end portion of the car body, the right crawler frame front portion and the left crawler frame front portion, the rear side connecting portion is separably joined to each of a rear end portion of the car body, the right crawler frame rear portion and the left crawler frame rear portion, and each of the front side connecting portion and the rear side connecting portion includes a lattice portion which has a lattice structure.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: August 31, 2021
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Teppei Maedo
  • Patent number: 11078987
    Abstract: A bicycle chain comprises a first inner link plate and a second inner link plate. The first inner link plate comprises a first inner-link end portion, a second inner-link end portion, and a first inner-link intermediate portion. The second inner link plate comprises a third inner-link end portion, a fourth inner-link end portion, and a second inner-link intermediate portion. A first inner-link end edge has a first chamfer extending about the first inner-link center axis such that a part of the first chamfer is disposed in a first circumferential area defined from a first inner-link longitudinal centerline to a first reference line when viewed in an axial direction of the first inner-link center axis. The first circumferential area is smaller than 14 degrees.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 3, 2021
    Assignee: SHIMANO INC.
    Inventors: Tsuyoshi Fukumori, Atsuhiro Emura