Patents by Inventor Erich Freytag

Erich Freytag has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11712962
    Abstract: A utility vehicle such as an agricultural tractor includes an engine, a heat exchanger, and a fan located under a hood. The hood is pivotable between a closed position and an open position. The fan is mounted to the hood such that, when in the closed position, the hood covers the engine and heat exchanger and the fan is positioned in an operable position to generate a cooling airstream through the heat exchanger. When the hood is in the open position, the fan is displaced from the operable position.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: August 1, 2023
    Assignee: AGCO International GmbH
    Inventors: Thomas Maier, Erich Freytag
  • Publication number: 20220314501
    Abstract: An internally reinforced thermoplastic container has a body manufactured using rotational molding. Prior to molding, attachment elements are releasably attached to the interior surface of parts of a mold, and an initially separate tension member is connected between the attachment elements. The mold is closed and a body of the container molded such that the attachment elements are integrated into the walls of the body. After molding, the attachment elements are released from the mold. The attachment elements and the tension member define a tension structure to resist outward bulging of the container walls. The tension member may be tensioned prior to or after molding of the container body. The attachment elements may take the form of eyelets having a base incorporated into the wall of the container body. The method enables the formation of a hollow thermoplastic container with integrally formed internal reinforcement.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 6, 2022
    Inventor: Erich Freytag
  • Publication number: 20220203767
    Abstract: A tire has a carcass with a tread, a bead, a shoulder, and a sidewall. The bead, shoulder, and sidewall partially define a first internal cavity. At least one stiffening line for a pressurized fluid with a second cavity is within the carcass. The second cavity is aligned in an approximately transverse direction relative to the periphery of the tire. The second cavity is connectable to pressurized fluid supply system and can be inflated or deflated to adjust the stiffness of the tire. The stiffening lines may be inflated using a hydraulic fluid to increase the stiffness of the tire. Related wheels, vehicles, and methods are also disclosed.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 30, 2022
    Inventor: Erich Freytag
  • Publication number: 20220194213
    Abstract: A utility vehicle such as an agricultural tractor includes an engine, a heat exchanger, and a fan located under a hood. The hood is pivotable between a closed position and an open position. The fan is mounted to the hood such that, when in the closed position, the hood covers the engine and heat exchanger and the fan is positioned in an operable position to generate a cooling airstream through the heat exchanger. When the hood is in the open position, the fan is displaced from the operable position.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 23, 2022
    Inventors: Thomas Maier, Erich Freytag
  • Publication number: 20220159895
    Abstract: An agricultural machine has a linkage system for hitching of an implement and an additional axle mounted to the linkage system. The linkage system includes at least one lift arm adjustably mounted to the chassis at an inner end and carrying a fastening device at an outer end. The additional axle is connected to at least one lift arm inboard of the fastening device. The linkage assembly may be a three-point linkage assembly having two lower lift arms, the additional axle being mounted between the lower lift arms.
    Type: Application
    Filed: September 28, 2021
    Publication date: May 26, 2022
    Inventors: Erich FREYTAG, Christoph HEINRITZ
  • Patent number: 11198362
    Abstract: A fuel tank for a vehicle, having a plurality of chambers, the chambers fluidly connected to allow a flow of fuel between the chambers, where at least one of the chambers has a flexible fluid container contained within an expandable rigid outer shell.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: December 14, 2021
    Assignee: AGCO International GmbH
    Inventors: Erich Freytag, Guido Naegele, Andreas Dornach
  • Patent number: 10730565
    Abstract: A fender assembly for an agricultural tractor including a carrier bracket which supports a wheel fender adjacent to a vehicle wheel. A steering mechanism is provided as part of the fender assembly, such that the wheel fender can be rotated relative to the carrier bracket. Accordingly, the rotation of the wheel fender can be controlled based on a steering signal generated by the vehicle steering system, to ensure that the wheel fender accurately follows the movement of the adjacent tractor wheel.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 4, 2020
    Assignee: AGCO International GmbH
    Inventors: Thomas Maier, Erich Freytag
  • Publication number: 20200062317
    Abstract: A fender assembly for an agricultural tractor including a carrier bracket which supports a wheel fender adjacent to a vehicle wheel. A steering mechanism is provided as part of the fender assembly, such that the wheel fender can be rotated relative to the carrier bracket. Accordingly, the rotation of the wheel fender can be controlled based on a steering signal generated by the vehicle steering system, to ensure that the wheel fender accurately follows the movement of the adjacent tractor wheel.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Inventors: Thomas Maier, Erich Freytag
  • Publication number: 20200047610
    Abstract: A fuel tank for a vehicle, having a plurality of chambers, the chambers fluidly connected to allow a flow of fuel between the chambers, where at least one of the chambers has a flexible fluid container contained within an expandable rigid outer shell.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Inventors: Erich Freytag, Guido Naegele, Andreas Dornach
  • Patent number: 10526031
    Abstract: A fender assembly for a tractor, as well as a tractor having such a fender assembly. The fender assembly is constructed as first and second fender parts, connected via a rail. The rail has a partial spiral or helical shape. As a result, the second fender part is moveable on the rail along a path substantially parallel to a portion of the circumference of a wheel of the tractor, in a direction downwardly and outwardly relative to the first fender part. This provides a fender assembly allowing for improved access to tractor components located inboard of the fender assembly, as well as allowing for ease of access to the second fender part for an operator standing on the ground adjacent the tractor.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: January 7, 2020
    Assignee: AGCO International GmbH
    Inventor: Erich Freytag
  • Patent number: 10507872
    Abstract: A fender assembly for an agricultural tractor including a carrier bracket which supports a wheel fender adjacent to a vehicle wheel. A steering mechanism is provided as part of the fender assembly, such that the wheel fender can be rotated relative to the carrier bracket. Accordingly, the rotation of the wheel fender can be controlled based on a steering signal generated by the vehicle steering system, to ensure that the wheel fender accurately follows the movement of the adjacent tractor wheel.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: December 17, 2019
    Assignee: AGCO International GmbH
    Inventors: Thomas Maier, Erich Freytag
  • Publication number: 20180215417
    Abstract: A fender assembly for an agricultural tractor including a carrier bracket which supports a wheel fender adjacent to a vehicle wheel. A steering mechanism is provided as part of the fender assembly, such that the wheel fender can be rotated relative to the carrier bracket. Accordingly, the rotation of the wheel fender can be controlled based on a steering signal generated by the vehicle steering system, to ensure that the wheel fender accurately follows the movement of the adjacent tractor wheel.
    Type: Application
    Filed: January 22, 2018
    Publication date: August 2, 2018
    Inventors: Thomas Maier, Erich Freytag
  • Publication number: 20180127039
    Abstract: A fender assembly for a tractor, as well as a tractor having such a fender assembly. The fender assembly is constructed as first and second fender parts, connected via a rail. The rail has a partial spiral or helical shape. As a result, the second fender part is moveable on the rail along a path substantially parallel to a portion of the circumference of a wheel of the tractor, in a direction downwardly and outwardly relative to the first fender part. This provides a fender assembly allowing for improved access to tractor components located inboard of the fender assembly, as well as allowing for ease of access to the second fender part for an operator standing on the ground adjacent the tractor.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 10, 2018
    Inventor: Erich Freytag
  • Patent number: 9834045
    Abstract: A vehicle tire deformation device for determining the size of a deformed contact patch of a tire which contacts the ground, said device comprising a movement detector connected to an attachment body by means of a moveable indicator element wherein both the movement detector and the attachment body are attachable to an inside surface of the tire, and wherein the size of the deformed contact patch of the tire is determined by the detector sensing a change in angle of the moveable indicator element indicating the border between the deformed contact patch of the tire and a non deformed part of the tire which is not in contact with the ground.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: December 5, 2017
    Assignee: AGCO International GmbH
    Inventor: Erich Freytag
  • Patent number: 9561717
    Abstract: An agricultural vehicle having a cooling system comprising a fan. The cooling system is housed in a bonnet of the vehicle. When the bonnet is closed it forms a part of a fan shroud of the fan and directs air in a direction parallel or substantially parallel to the longitudinal axis of the vehicle.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: February 7, 2017
    Assignee: AGCO INTERNATIONAL GmbH
    Inventors: Alexander Barzen, Marco Opitz, Georg Jutz, Erich Freytag, Thomas Maier, Jan Weigand, Hartmut Kolmer
  • Publication number: 20160167464
    Abstract: A vehicle tire deformation device for determining the size of a deformed contact patch of a tire which contacts the ground, said device comprising a movement detector connected to an attachment body by means of a moveable indicator element wherein both the movement detector and the attachment body are attachable to an inside surface of the tire, and wherein the size of the deformed contact patch of the tire is determined by the detector sensing a change in angle of the moveable indicator element indicating the border between the deformed contact patch of the tire and a non deformed part of the tire which is not in contact with the ground.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 16, 2016
    Inventor: Erich Freytag
  • Patent number: 9254788
    Abstract: A vehicle folding rear view mirror support mechanism having first (15) and second (16) pivotally interconnected support arm means. A first end (15b1) of the first support arm means is pivoted on a mounting bracket (18) for attachment to the vehicle, a second end (15c1) of the first support arm means is pivotally connected with a first end (16b1) of the second support arm means, and a mirror mount (22) is pivotally connected to a second end (16c1) of the second support arm means. The first and second arm means (15, 16) are movable between a retracted reduced width position in which the two arm means are in a side by side substantially parallel relationship and an extended increased width position in which the two arm means are substantially end to end and the mirror mount (22) is supported at its maximum distance from the mounting bracket (18).
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: February 9, 2016
    Assignee: AGCO INTERNATIONAL GmbH
    Inventor: Erich Freytag
  • Publication number: 20140139938
    Abstract: A vehicle folding rear view mirror support mechanism having first (15) and second (16) pivotally interconnected support arm means. A first end (15b1) of the first support arm means is pivoted on a mounting bracket (18) for attachment to the vehicle, a second end (15c1) of the first support arm means is pivotally connected with a first end (16b1) of the second support arm means, and a mirror mount (22) is pivotally connected to a second end (16c1) of the second support arm means. The first and second arm means (15, 16) are movable between a retracted reduced width position in which the two arm means are in a side by side substantially parallel relationship and an extended increased width position in which the two arm means are substantially end to end and the mirror mount (22) is supported at its maximum distance from the mounting bracket (18).
    Type: Application
    Filed: November 19, 2013
    Publication date: May 22, 2014
    Applicant: AGCO International GmbH
    Inventor: Erich Freytag
  • Patent number: 7413201
    Abstract: The invention discloses a utility vehicle, in particular an agricultural tractor, with a steering system having single-wheel-suspended steering wheels, which are mounted on a respective wheel carrier (11). Each wheel carrier (11) may be swivelled about the axis of at least one rigidly connected bolt (18) and is connected via a ball-and-socket joint (9) on the at least one bolt, to a transverse steering element (1) that is articulated to the vehicle body. Associated with the ball-and-socket joint (9) is a steering angle sensor (22) comprising a rotatable input member (23), which is located at least approximately in the extension of the axis of the swivel bolt (18). The rotatable input member (23) is connected to the bolt via an entrainment element (25) that transmits the swivel motion of the bolt in an angularly precise manner to detect the current swivel position of the wheel carrier (11).
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: August 19, 2008
    Assignee: AGCO GmbH
    Inventors: Erich Freytag, Bernd Glaser
  • Publication number: 20070001416
    Abstract: The invention discloses a utility vehicle, in particular an agricultural tractor, with a steering system having single-wheel-suspended steering wheels, which are mounted on a respective wheel carrier (11). Each wheel carrier (11) may be swivelled about the axis of at least one rigidly connected bolt (18) and is connected via a ball-and-socket joint (9) on the at least one bolt, to a transverse steering element (1) that is articulated to the vehicle body. Associated with the ball-and-socket joint (9) is a steering angle sensor (22) comprising a rotatable input member (23), which is located at least approximately in the extension of the axis of the swivel bolt (18). The rotatable input member (23) is connected to the bolt via an entrainment element (25) that transmits the swivel motion of the bolt in an angularly precise manner to detect the current swivel position of the wheel carrier (11).
    Type: Application
    Filed: May 22, 2006
    Publication date: January 4, 2007
    Applicant: AGCO GmbH
    Inventors: Erich Freytag, Bernd Glaser