Patents by Inventor Friedrich K Lauer

Friedrich K Lauer 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: 8864561
    Abstract: The invention concerns a harvested crop residue chopper and distribution arrangement for a combine (10) with a straw chopper (60) with a rotor (74) that can be brought into rotation about a horizontal axis (98) with chopper blades (76) fastened thereto that define an outer envelope (96), and with at least one impeller blower (82) arranged downstream of the straw chopper (60) with impeller blades (84) that can rotate about an axis of rotation (88) that extends vertically, in which the impeller blades (84) are provided with outer edges (94) that conform to the envelope (96) of the chopper knives (76) and follow it very closely and are not in contact with it.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: October 21, 2014
    Assignee: Deere & Company
    Inventors: Dirk Weichholdt, Rico Priesnitz, Friedrich K Lauer, Oliver Klein, Chad Allen Dow, Joel David Ferris
  • Patent number: 8167691
    Abstract: In a crop residue chopping and distributing arrangement for a combine harvester (10) with a straw chopper (60) and two discharge blowers (100), a guide element (150) distributes the crop residue stream over the two discharge blowers (100) is arranged between said blowers. Passages (162) remain between the guide element (150) and the discharge blowers (100) such that the crop residues can be rearwardly discharged onto the field by the straw chopper (60) through said passages. Outer guide elements (141) are provided between the straw chopper (60) and the discharge blowers (100) in order to deflect the outer regions of the crop residue stream inward. The straw chopper housing (19) may feature a curved bottom (112) that axially conveys the crop residues to the discharge blowers (100) at an angle, wherein a flat crop residue guide element (112) is arranged between the straw chopper housing (90) and the discharge blowers (100).
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: May 1, 2012
    Assignee: Deere & Company
    Inventors: Norbert Pohlmann, Friedrich K Lauer, Dirk Weichholdt, Rico Priesnitz, Oliver Klein
  • Patent number: 8146336
    Abstract: A harvested crop residue chopper-and distribution arrangement for a combine (10) has a straw chopper (60) with an outlet (80) arranged in the plane of the outlet (96), with at least one impeller blower (82) arranged downstream of the outlet (80) of the straw chopper (60) with impeller blades (84) that can be rotated in the plane of the impeller blower (98) about an axis of rotation (88), where the plane of the impeller blower (98) may be inclined relative to the plane of the outlet (96). The impeller blades (84) may be connected with a central body (92) that is connected to a cone (94) facing the outlet (80) of the straw chopper (60).
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: April 3, 2012
    Assignee: Deere & Company
    Inventors: Dirk Weichholdt, Rico Priesnitz, Friedrich K Lauer, Oliver Klein, Chad Allen Dow, Joel David Ferris
  • Patent number: 8128466
    Abstract: A harvested material residue chopping and distributing arrangement for a combine (10) is provided having a straw chopper (60) and two distribution blowers (100) between which a guide element (150) is arranged for distributing the harvested material residue flow between the two distribution blowers (100). The tip (156) of the guide element (150) is positioned on the circumferential circle of the straw chopping blades (96) such that the blades (96) remove harvested material residue from the tip (156) during operation.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 6, 2012
    Assignee: Deere & Company
    Inventors: Dirk Weichholdt, Oliver Klein, Dohn W Pfeiffer, Norbert Pohlmann, Friedrich K. Lauer, Rico Priesnitz
  • Patent number: 8029347
    Abstract: The invention relates to a crop residue chopping-and-distributing arrangement for a combine, with a straw chopper (60) and two distribution blowers (100) arranged laterally alongside one another, on the periphery of which is provided a respective first shield (144), adjustable about axis of rotation (108) for modifying the distribution characteristics, that can be brought into an active position. It is proposed that the first shields (144) are respectively mounted on a rotary holder (176) rotatable about axis of rotation (84) of the associated distribution blower (100) and additionally carrying a second shield (146), which has a smaller dimension in the circumferential direction than first shield (144), so that second shield (146) can selectively be brought into an active position instead of first shield (144).
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: October 4, 2011
    Assignee: Deere & Company
    Inventors: Norbert Pohlmann, Friedrich K Lauer, Dirk Weichholdt, Rico Priesnitz, Oliver Klein
  • Publication number: 20110053669
    Abstract: The invention concerns a harvested crop residue chopper and distribution arrangement for a combine (10) with a straw chopper (60) with a rotor (74) that can be brought into rotation about a horizontal axis (98) with chopper blades (76) fastened thereto that define an outer envelope (96), and with at least one impeller blower (82) arranged downstream of the straw chopper (60) with impeller blades (84) that can rotate about an axis of rotation (88) that extends vertically, in which the impeller blades (84) are provided with outer edges (94) that conform to the envelope (96) of the chopper knives (76) and follow it very closely and are not in contact with it.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Inventors: Dirk Weichholdt, Rico Priesnitz, Friedrich K. Lauer, Oliver Klein, Chad Allen Dow, Joel David Ferris
  • Publication number: 20110053668
    Abstract: A harvested crop residue chopper—and distribution arrangement for a combine (10) has a straw chopper (60) with an outlet (80) arranged in the plane of the outlet (96), with at least one impeller blower (82) arranged downstream of the outlet (80) of the straw chopper (60) with impeller blades (84) that can be rotated in the plane of the impeller blower (98) about an axis of rotation (88), where the plane of the impeller blower (98) may be inclined relative to the plane of the outlet (96). The impeller blades (84) make be connected with a central body (92) that is connected to a cone (94) facing the outlet (80) of the straw chopper (60).
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Inventors: Dirk Weichholdt, Rico Priesnitz, Friedrich K Lauer, Oliver Klein, Chad Allen Dow, Joel David Ferris
  • Publication number: 20100291985
    Abstract: The invention pertains to a crop residue chopping and distributing arrangement for a combine harvester (10) with a straw chopper (60) and two discharge blowers (100), wherein a guide element (150) that distributes the crop residue stream over the two discharge blowers (100) is arranged between said blowers. Passages (162) remain between the guide element (150) and the discharge blowers (100) such that the crop residues can be rearwardly discharged onto the field by the straw chopper (60) through said passages. Outer guide elements (141) are provided between the straw chopper (60) and the discharge blowers (100) in order to deflect the outer regions of the crop residue stream inward. The straw chopper housing (19) may feature a curved bottom (112) that axially conveys the crop residues to the discharge blowers (100) at an angle, wherein a flat crop residue guide element (112) is arranged between the straw chopper housing (90) and the discharge blowers (100).
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Inventors: Norbert Pohimann, Friedrich K. Lauer, Dirk Weichholdt, Rico Priesnitz, Oliver Klein
  • Publication number: 20100291984
    Abstract: The invention relates to a crop residue chopping-and-distributing arrangement for a combine, with a straw chopper (60) and two distribution blowers (100) arranged laterally alongside one another, on the periphery of which is provided a respective first shield (144), adjustable about axis of rotation (108) for modifying the distribution characteristics, that can be brought into an active position. It is proposed that the first shields (144) are respectively mounted on a rotary holder (176) rotatable about axis of rotation (84) of the associated distribution blower (100) and additionally carrying a second shield (146), which has a smaller dimension in the circumferential direction than first shield (144), so that second shield (146) can selectively be brought into an active position instead of first shield (144).
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Inventors: Norbert Pohlmann, Friedrich K. Lauer, Dirk Weichholdt, Rico Priesnitz, Oliver Klein
  • Publication number: 20100291983
    Abstract: A harvested material residue chopping and distributing arrangement for a combine (10) is provided having a straw chopper (60) and two distribution blowers (100) between which a guide element (150) is arranged for distributing the harvested material residue flow between the two distribution blowers (100). The tip (156) of the guide element (150) is positioned on the circumferential circle of the straw chopping blades (96) such that the blades (96) remove harvested material residue from the tip (156) during operation.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Inventors: Dirk Weichholdt, Oliver Klein, Dohn W. Pfeiffer, Norbert Pohlmann, Friedrich K. Lauer, Rico Priesnitz
  • Patent number: 7717779
    Abstract: The invention concerns a combine (10) with a chassis (12) that can be moved across a field in the forward operating direction, a harvested crop processing arrangement (26) with an outlet (62) for straw and a straw chopper (60) with an inlet for straw (58). A rotating conveyor drum (68) is attached downstream of the outlet (62) of the harvested crop processing arrangement (26) and upstream of the inlet (58) of the straw chopper (60) that rotates in a first direction of rotation in the swath deposit operating mode and that conveys the straw received from the harvested crop processing arrangement (26) past the straw chopper (60) to the ground, and conveys it in the chopper operating mode in the second direction of rotation into the inlet (58) of the straw chopper (60).
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: May 18, 2010
    Assignee: Deere & Company
    Inventors: Dirk Weichholdt, Rico Priesnitz, Friedrich K Lauer, Oliver Klein, Chad Allen Dow