Patents by Inventor Heinrich Isfort

Heinrich Isfort 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).

  • Publication number: 20030101705
    Abstract: A self-propelled forage harvester having a feed shaft through which the chopped material is delivered to a pair of conditioning rollers is disclosed. The width of the feed shaft converges on the way from the bladed drum to the pair of conditioning rollers. To direct the material out of the side regions towards the center evenly over the remaining width, there are provided drive-energy-free crop guide elements and are either in the form of plowshare-like guide elements or a contoured bottom. The chopped material mat in a crop discharge region is consistently thick.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 5, 2003
    Inventors: Martin Dykstra, Carsten Wienecke, Heinrich Isfort, Markus Deppe
  • Patent number: 6359403
    Abstract: The method of setting rotation speed of a drive motor of a work machine, in which the drive motor has a device for control of motor rotation speed and for control of the travel speed independently of the rotation speed, includes setting the rotation speed of the drive motor to be constant during working operation and setting the rotation speed of the drive motor during transport or road travel of the work machine automatically according to the set travel speed of the work machine or according to whether the work machine is in working operation or in transport or road travel. A suitable apparatus is described for performing the method.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: March 19, 2002
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Manfred Pollklas, Heinrich Isfort
  • Patent number: 6290599
    Abstract: A control unit for an agricultural harvesting machine is arranged so that the width of a passage or opening between two machine elements can be precisely adjusted as simply as possible. Adjustable stops are in the form of plungers are displaceably guided in cylinders. Each cylinder is connected to a multi-chamber pump which contains a displaceable stepped piston. Individual chambers of the multi-chamber pump and the steps of the piston are mutually matched so that the same quantity of hydraulic fluid is squeezed out from the two chambers of the multi-chamber pump and the plungers move in and out in synchronism. The control unit is particularly suitable for use in foragers, combines other agricultural harvesting machines.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: September 18, 2001
    Assignee: Claas Selbstfahrende Erntemaschinen GmbH
    Inventors: Günter Eis, Heinrich Isfort
  • Patent number: 6097425
    Abstract: A device for overloading products from a working machine having a driver's stand to a transporting vehicle has an overloading unit provided in the working machine, and a monitor assembly for monitoring overloading of the product from the working machine to the transporting vehicle, the monitor assembly including an analog monitoring camera associated with the overloading unit and filming an overloading process, an analog control monitor arranged in the driver's cabin of the working machine such that an indication of the monitoring camera is performed by the control monitor, a first microprocessor connected to the monitoring camera and digitalizing a video signal, a second microprocessor to which the video signal is transmitted, and a digitally operating graphic indicator to which the digitalized video signal is transmitted by the second microprocessor for indication.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: August 1, 2000
    Assignee: Claas Kgaa
    Inventors: Willi Behnke, Heinrich Isfort, Norbert Diekhans
  • Patent number: 6029430
    Abstract: A self-propelled forager can accumulate dust, dirt or crop material particles in its maintenance and/or engine compartment. To avoid such accumulations, suction devices are provided in the engine and/or maintenance compartment which extract dust, dirt or crop material particles. The suction is provided by the post-accelerator which conveys the chopped crop.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: February 29, 2000
    Assignee: Claas Selbstfahrende Erntemaschinen GmbH
    Inventors: Heinrich Isfort, Karl Landwehr
  • Patent number: 5979151
    Abstract: A self-propelled chopper forage harvester has a flap assembly at the discharge end of a pivotable ejector pipe. A hydraulic actuator moves the flap assembly about a generally horizontal axis for directing the projection of the forage. The flap assembly is removably mounted so it can be either at a position at the top of the discharge end of the ejector pipe for filling open-top forage boxes or at a position 180 degrees therefrom and at the bottom of the discharge end for filling closed-top forage boxes.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: November 9, 1999
    Assignee: Claas KGaA
    Inventors: Lambert Sanders, Heinrich Isfort, Karl-Heinz Landwehr
  • Patent number: 5911375
    Abstract: A chopper aggregate has a chopper drum provided with a plurality of knives, a countercutter bar arranged on a saddle, a discharge element, a bottom plate transiting into the discharge element and partially surrounding the chopper drum, a unit for supporting the countercutter bar adjustably relative to the chopper drum, a unit for adjustably supporting the bottom plate for changing its radial position relative to the chopper drum so as to follow a position change of the countercutter bar, the unit for adjustably supporting the bottom plate being formed so that the bottom plate is adjustable at its both ends in dependence on an adjusting movement of the countercutter bar, radially relative to a peripheral circle of the chopper drum.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: June 15, 1999
    Assignee: Claas KGaA
    Inventor: Heinrich Isfort
  • Patent number: 4198804
    Abstract: This invention relates to a round baler for windrowed fibrous agricultural materials in which the bales are formed by a two-part frame having a generally cylindrical baling zone therein defined by side wall members on the frame and roller members extending between the side wall members and distributed around the frame. The frame includes a conventional pickup and conveying apparatus to move the agricultural materials from the ground into the entrance of the cylindrical baling zone. A suitable drive means, adapted to be coupled to a power takeoff of a draft vehicle or mounted on the baler, rotates the roller members to form a bale of the agricultural materials which are fed to the baling zone by the pickup. The frame parts are separated through hydraulic actuators to open the baling zone and deposit the round bale therefrom.
    Type: Grant
    Filed: August 8, 1978
    Date of Patent: April 22, 1980
    Assignee: Gebr. Claas Maschinenfabrik GmbH
    Inventors: Werner Konekamp, Horst Harig, Heinrich Isfort