Marker Swingable About Longitudinal Axis To Both Sides Patents (Class 172/132)
  • Patent number: 11268258
    Abstract: A motor grader includes a frame and an extendable scarifier system supported on the frame. The scarifier system includes first and second drawbar arms coupled to the frame. A carriage is coupled to the first and second drawbar arms. The carriage includes a carriage body having first and second lateral ends. A first extension element is attached to the first lateral end of the carriage body and a second extension element is attached to the second lateral end of the carriage body. The first and second extension elements each supporting at least one tooth.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: March 8, 2022
    Assignee: Caterpillar Inc.
    Inventors: Benjamin J. Kovalick, Rena J. Kanegae, David L. Cox, Nathan G. Tissier, Nathaniel K. Harshman
  • Patent number: 9328480
    Abstract: In a hydraulic excavator, a hydraulic cylinder drives a boom via a hydraulic fluid discharged from a first hydraulic pump. A first hydraulic circuit connects the first hydraulic pump and the hydraulic cylinder and forms a closed circuit therebetween. A hydraulic motor rotates a revolving upper unit with hydraulic fluid discharged from a second hydraulic pump. A second hydraulic circuit independent from the first hydraulic circuit connects the second hydraulic pump and the hydraulic motor. A motor hydraulic pressure reduction unit reduces the driving hydraulic pressure of the hydraulic motor when a predetermined condition is satisfied. The predetermined condition is a condition in which an operation of the boom operating member to raise the boom and an operation of the rotation operating member to rotate the revolving upper unit are conducted together and an operation amount of the boom operating member is equal to or greater than a predetermined threshold.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: May 3, 2016
    Assignee: KOMATSU LTD.
    Inventors: Teruo Akiyama, Noboru Iida, Kenji Oshima, Kenji Sasano
  • Patent number: 7904224
    Abstract: A control-mode switching device includes: a plurality of actuators (2, 6, 7) that conduct different movement; driving means (10, 11, 12, 13, 14, 15) that drive the actuators; a plurality of control levers (22a-22c) that command operation of the driving means; a plurality of limit switches (72a-72e) that detect arrival of the control levers to the proximity of an end of a control range; a mode judging means (controller 23) that judges whether a priority operation mode is taken or not in accordance with a combination of on/off conditions of the limit switches; and a drive controlling means (controller 23) that, when it is judged by the mode judging means that the priority operation mode is taken, controls the driving means so that an output of selected one or more of the driving means becomes larger than that in a normal mode or the power ratio as compared with the other driving means becomes larger.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: March 8, 2011
    Assignee: Komatsu Ltd.
    Inventors: Noboru Kanayama, Koutarou Sasano, Koichi Kawamura
  • Patent number: 7743594
    Abstract: A mechanism for guiding a windrower while making an initial swath pass in a multi-pass windrow merging operation in a manner to establish the lateral spacing between an end of the header and the adjacent edge of the uncut crop so that the header encounters an optimal width of standing crop in a subsequent swath pass. The mechanism is selectively positionable between deployed (working) and stowed positions to maintain machine maneuverability when not in use. The mechanism further incorporates provisions to prevent damage to the mechanism resulting from inadvertent encounters with obstacles.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: June 29, 2010
    Assignee: CNH America LLC
    Inventors: John E. Wanner, D. Russell Whitenight
  • Patent number: 7383114
    Abstract: An apparatus and method using GPS for dynamically adjusting side-to-side positioning of a farm implement along a geographical path. The apparatus includes a global positioning system (GPS) antenna disposed on the farm implement, a GPS receiver coupled to the GPS antenna for determining a location of the GPS antenna, and a dual guidance computer for comparing the location to stored geographical coordinates of a desired path for providing a guide signal for offsetting the lateral position of an adjustable hitch or angling a wheel or ground rudder in a steerable implement for guiding the implement along the path; and a range extent signal for maintaining the offset of the hitch or steering angle of the implement within its dynamic range.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: June 3, 2008
    Assignee: Trimble Navigation Limited
    Inventors: Arthur F. Lange, Timothy J. Funk
  • Patent number: 5027525
    Abstract: An improved field marker is provided which can be used on an agricultural implement of the type which includes wing folding. The field marker has an arm with a disk mounted on an outer end of the arm and a mounting system at the inner end of the arm for supporting the arm on the implement. The arm includes two portions which fold in a knee type action while the inner portion is folded through 90.degree. so that both portions lie along the side of the implement. The mounting assembly includes a fixed portion attached to the implement and a pivotal portion which moves about a horizontal axis. A spring biases the arm towards a raised position. In the extended position of the arm the spring force is overcome and the disk rests on the ground. As the arm retracts to the folded position and the effective weight decreases the spring forces lift the arm.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: July 2, 1991
    Inventor: Duane Haukaas
  • Patent number: 4049062
    Abstract: A mount is supported at the forward portion of a farm tractor or the like adapted to pull draft implements therebehind and the mount is swingable about an upstanding axis for angular displacement between opposite limit positions with a mounting portion of the mount spaced laterally of the aforementioned axis disposed at opposite sides of the forward portion of the vehicle. An elongated horizontal arm having base and free ends is supported at its base end from the mounting portion for angular displacement relative thereto about an upstanding axis and with the arm swingable between a horizontal laterally outwardly projecting position and a trailing position when the mounting portion is disposed at either side of the vehicle.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: September 20, 1977
    Inventors: Lawrence E. Rossmiller, George D. Gemar