Patents Assigned to Kuhn S.A.
  • Patent number: 5199249
    Abstract: A farm machine having a first joint with an upwardly directed axis such that in the vicinity of the first joint, a body is connected to a connecting device with a second joint. The second joint having an axis at least approximately perpendicular to the axis of the first joint and to a longitudinal axis of the body. A universal joint telescopic shaft transmits the rotation movement of an output shaft of a second housing to an input shaft of an intake housing connected to the body.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: April 6, 1993
    Assignee: Kuhn, S.A.
    Inventors: Bernard Wattron, Rino Ermacora
  • Patent number: 5199250
    Abstract: A harvesting machine comprises a body which rests on the ground both in a work position and in a transport position through at least one wheel connected directly or indirectly to the body. The harvesting machine includes an orientation element used to orient the wheel in a direction of transport. The orientation of the wheel for the purpose of transport is performed in a simple and quick manner, while allowing, during work, the pivoting of the wheel around its shaft connecting it to the body.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: April 6, 1993
    Assignee: Kuhn, S.A.
    Inventors: Rino Ermacora, Bernard Wattron
  • Patent number: 5158411
    Abstract: An improved device for planting seed in the soil, a sowing machine and combined machine for preparing a seedbed and for sowing using the device. According to the invention, an outside part of active part of a tool is provided which includes a carrying element whose outside edge is directed essentially crosswise to the direction of advance during working operation.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: October 27, 1992
    Assignee: Kuhn S.A.
    Inventor: Hartmut Kemmner
  • Patent number: 5146737
    Abstract: A farm machine includes first and second elements connected to each other through a joint which permits a rotation between the first and second elements. The farm machine also includes a stop member for limiting the rotation between the first and second elements and a protective device for isolating the stop member which is not deformed during the rotation of the first and second elements.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: September 15, 1992
    Assignee: Kuhn, S.A.
    Inventor: Jean-Paul Gantzer
  • Patent number: 5136828
    Abstract: The invention relates to a farm machine. According to the present invention, the farm machine features a detection device which detects an intermediate position of a connecting device and cuts off the supply to a maneuvering element when the connecting device comes from an end work position into an intermediate position. The action of the detection device can be cancelled so that the maneuvering element can bring the connecting device beyond the intermediate position into the other end position.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: August 11, 1992
    Assignee: Kuhn S.A.
    Inventor: Rino Ermacora
  • Patent number: 5111636
    Abstract: This invention relates to a haymaking machine which includes a frame having a central section and three lateral sections which are connected to one another and which carry rotors rotatably driven during working operation. The lateral sections can be folded for transport by hydraulic cylinders. On each side of central section there are located the three lateral sections, each of which includes a pipe and a housing equipped with a rotor. A hydraulic cylinder extends directly from the central section to each third lateral section and in the transporting position, the first and second lateral sections are directed upward and the third lateral sections are directed downward.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: May 12, 1992
    Assignee: Kuhn S.A.
    Inventor: Michel Quirin
  • Patent number: 5107663
    Abstract: A farm machine comprises at least one group of working elements and a structure having a hitching mechanism for hitching the farm machine to a motor vehicle during work. The group of working elements is connected to the structure which comprises a tongue (hitching mechanism), and a frame through a deformable quadrilateral suspension device which comprises suspension elements each one of which is connected to the structure through a first joint and to the group of working elements through a second joint.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: April 28, 1992
    Assignee: Kuhn s.a.
    Inventors: Bernard Wattron, Roland Helfer
  • Patent number: 5107662
    Abstract: A mower having a frame that supports, by means of connecting elements, a cutting element equipped with cutting tools. A rotary drum extends in part at least above the rotary cutting element. A device for driving the rotary cutting element and or the rotary drum, and at least a part of the connecting elements penetrate inside the rotary drum by passing through its upper part. On the upper part of said rotary drum there is mounted a plurality of rotary push-back blades.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: April 28, 1992
    Assignee: Kuhn S.A.
    Inventors: Jean-Paul Haberkorn, Horst Neuerburg
  • Patent number: 5101616
    Abstract: A mower which is to be coupled to a motor vehicle comprises a first cylinder acting directly or indirectly on a deformable structure, which is in direct connection with a second fluid cylinder whose length varies, from a certain value, proportionally to the pivoting of a mowing group around an axis of a joint which connects the mowing group to a support beam of a frame.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: April 7, 1992
    Assignee: Kuhn S.A.
    Inventor: Michel Wolff
  • Patent number: 5097908
    Abstract: The farm machine 1 for working the soil comprises tools 21 each of which consists of a concave disk 47 provided with a plurality of spades 48 at its periphery. The concavity of the concave disk 47 is directed toward the forward end 12 of the rotor 16, considering the work direction 3 of the farm machine 1. A lateral stabilizing element 41 comprising at least one share 43 extends behind the rearward lateral end 11 of the frame 9 of said farm machine 1. The farm machine 1 also comprises support wheels 36, 38, one 36 of which extends in front of the forward lateral end 12 of said frame 9.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: March 24, 1992
    Assignee: Kuhn, S.A.
    Inventor: Michel Kirch
  • Patent number: 5094063
    Abstract: A mower to be moved by a motorized vehicle includes a frame supporting a number of working elements (cutting elements combined or not with processing elements). These working elements are arranged crosswise to a direction of advancement of the motor vehicle and mower during work. Two cutting bar parts, one on each side of a central plane of the mower, carry the cutting elements and their associated drive structure. The two cutting bar parts are connected to one another rigidly and reliably. An arrangement of transmission shafts, bevel gears, and universal joints is provided for transferring rotating motion from a power source to the working elements of the mower.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: March 10, 1992
    Assignee: Kuhn, S.A.
    Inventors: Bernard Wattron, Roland Helfer
  • Patent number: 5060462
    Abstract: A mower includes a frame having a connecting mechanism for connecting the frame to a motor vehicle. The mower also includes at least one harvesting mechanism which comprises cutting elements and is connected to the frame through a suspension device. The suspension device permits the displacement in height of the harvesting mechanism relative to the frame. The mower further includes a lightening device operatively connected to the harvesting mechanism and comprising at least one spring connected directly to the harvesting mechanism. The lightening device makes it possible to reduce the pressure with which the harvesting mechanism rests on the ground by transferring a part of the weight of the harvesting mechanism to the frame.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: October 29, 1991
    Assignee: Kuhn S.A.
    Inventors: Roland Helfer, Bernard Wattron
  • Patent number: 5060465
    Abstract: A transportable farm machine for windrowing products includes a frame which can be connected to a tractor, a rotor mounted to the frame for rotation about a vertical axis, and a plurality of toolholder arms mounted to the rotor such that the tools mounted on the toolholder arms may form the product into windrows during rotation of the rotor. Each of the toolholder arms includes an inside part mounted to the rotor and an outside part to which the tools are mounted and which is conencted to the inside part by a joint about which the outside part can be displaced between a work position and a transport position. The joint includes a first pivot for pivoting the outside part around the longitudinal axis of the inside part, a second pivot for pivoting the outside part about an axis forming a positive angle relative to the axis of the first pivot and a locking device for locking the outside part in the work position.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: October 29, 1991
    Assignee: Kuhn S.A.
    Inventor: Aron Jerome
  • Patent number: 5024053
    Abstract: An agricultural machine comprises a frame which is adapted to be hooked to a drive tractor and carries at least one rotor equipped with work tools controlled by a central cam to move products such as hay which are on the ground. The rotor is connected to the frame by a pin which is positioned substantially perpendicular to the direction of advance of the machine and comprises a central support pin on which carrying wheels are connected. The agricultural machine further comprises an actuating mechanism positioned between the frame and the rotor of the machine which acts on the rotor to pivot the rotor around its hinge pin. With this arrangement, a partial load transfer from the front wheels onto the rear wheels or wheels can be obtained and the agricultural machine can adapt to the unevenness of the ground as well as clear all obstacles.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: June 18, 1991
    Assignee: Kuhn S.A.
    Inventor: M. Jerome Aron
  • Patent number: 5014766
    Abstract: A core shooter comprises a support device for core boxes. The support device is equipped with support elements which can receive core boxes of variable dimensions. The core shooter further comprises a shooting mechanism which comprises a shooting device and an adaptation which provides for device the automatic adaptation device of the shooting to the dimension of the core boxes. The core shooter further comprises a gassing mechanism comprising a gassing head and a further adaptation device. The further adaptation device providing for the automatic adaptation of the gassing head to the dimension of the core boxes. Additionally, the shooting device comprises a plurality of shooting heads.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: May 14, 1991
    Assignee: Kuhn S.A.
    Inventor: Andre Weber
  • Patent number: 4999981
    Abstract: The shaft 20 of a rotary cutting element 10 driven from below includes a break zone 41 at its end 19 extending upwardly outside the bearing 24. The rotary cutting element separates entirely from the cutting bar when the shaft breaks at the break zone upon contact of the cutting element with an obstacle.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: March 19, 1991
    Assignee: Kuhn S.A.
    Inventor: Horst Neuerburg
  • Patent number: 4996833
    Abstract: This invention relates to a haymaking machine comprising several tedding and/or windrowing rotors which are connected to a carrying frame having a central section and side sections which are connected to one another. According to the invention, each side section includes three parts each carrying a rotor, and which are connected to one another by pins oriented in the direction of advance of the machine. Each of these parts is movable by an angle of about 90.degree. around a hinge pin with a central section or an adjacent part, so that they may be folded approximately in the shape of an upside-down U.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: March 5, 1991
    Assignee: Kuhn S.A.
    Inventor: Wilhelm Von Allowerden
  • Patent number: 4991383
    Abstract: An agricultural machine for harvesting crop includes a frame provided with a tongue and carrying wheels. The frame carries a cutting device, a conditioning and/or throwing device and adjustable deflectors. The cutting device and the conditioning and/or throwing device can be transposed into a second work position in which they form an acute first angle with a straight line perpendicular to direction of advance and acute second angles with axes of carrying wheels. The second angles have approximately the same value as the first angle.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: February 12, 1991
    Assignee: Kuhn S.A.
    Inventor: Rino Ermarcora
  • Patent number: 4987959
    Abstract: The farm machine 1 for working the soil comprises tools 21 each of which consists of a concave disk 47 provided with a plurality of spades 48 at its periphery. The concavity of the concave disk 47 is directed toward the forward end 12 of the rotor 16, considering the work direction 3 of the farm machine 1. A lateral stabilizing element 41 comprising at least one share 43 extends behind the rearward lateral end 11 of the frame 9 of said farm machine 1. The farm machine 1 also comprises support wheels 36, 38, one 36 of which extends in front of the forward lateral end 12 of said frame 9.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: January 29, 1991
    Assignee: Kuhn, S.A.
    Inventor: Michel Kirch
  • Patent number: 4986061
    Abstract: A mower according to the invention includes a mowing group provided with a cutting bar and skids. The rear connection of each one of the skids includes connection means that allow the rear part of the skid to separate from the cutting bar in a relative movement directed backwardly, considering the direction of advance.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: January 22, 1991
    Assignee: Kuhn, s.a.
    Inventors: Johnny Frumholtz, Roland Helfer