Patents by Inventor Peter Pirro

Peter Pirro 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: 7682236
    Abstract: The invention concerns a harvested crop processing unit with a rotor, a rotor housing enclosing the rotor, a cover element of the rotor housing, and a first group of helical guide rails that can be moved relative to the cover element between an operating position in which they are located underneath the cover element in engagement with harvested crop and a non-operating position in which they are located above the cover element. The invention proposes that a second group of helical guide rails be provided that can be moved alternately with the first group of helical guide rails relative to the cover element between an operating position in which they are located underneath the cover element in engagement with harvested crop and a non-operating position in which they are located above the cover element, and that are provided with an inclination that differs from the inclination of the guide rail of the first group.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: March 23, 2010
    Assignee: Deere & Company
    Inventors: Martin Büermann, Klaus E. Becker, Klaus A. Braunhardt, Peter Pirro
  • Patent number: 7632181
    Abstract: A harvested crop processing unit with a rotor and a rotor housing enclosing the rotor, that includes a cover element under which a first group of helically shaped guide rails and a second group of helically shaped guide rails are attached, where the guide rails of the two groups follow each other alternately and are provided with a leading end and a trailing end in the direction of rotation of the rotor and the guide rails of the first group are arranged offset to the rear of the guide rails of the second group in the direction of rotation of the rotor. The trailing ends of the guide rail of the first group are directed at the leading end of the guide rails of the second group following in the axial direction of the rotor housing.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: December 15, 2009
    Assignee: Deere & Company
    Inventors: Klaus Becker, Martin Büermann, Klaus Braunhardt, Peter Pirro
  • Patent number: 7555882
    Abstract: The agricultural harvesting machine having a crop picking head includes a pickup conveyer which can be driven so as to pick up the harvested crop at a first adjustable speed, a discharge conveyer which can be driven so as to receive the harvested crop picked up by the pickup conveyer, transport the harvested crop, and discharge the harvested crop at a second adjustable speed, and a feed-in conveyer disposed in a feed-in channel of the harvesting machine that can be driven so as to receive the harvested crop from the discharge conveyer, transport the harvested crop, and discharge the harvested crop to a harvested crop processing unit at a third adjustable speed. The third speed and the first speed are independent of one another, and the second speed is defined by the first and third speeds and falls in a range between the first and third speeds.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: July 7, 2009
    Assignee: Deere & Company
    Inventors: Steffen Clauss, Stefan Bohrer, Rainer Schäfer, Jürgen Hofer, Peter Pirro
  • Publication number: 20090011807
    Abstract: A harvested crop processing unit with a rotor and a rotor housing enclosing the rotor, that includes a cover element under which a first group of helically shaped guide rails and a second group of helically shaped guide rails are attached, where the guide rails of the two groups follow each other alternately and are provided with a leading end and a trailing end in the direction of rotation of the rotor and the guide rails of the first group are arranged offset to the rear of the guide rails of the second group in the direction of rotation of the rotor. The trailing ends of the guide rail of the first group are directed at the leading end of the guide rails of the second group following in the axial direction of the rotor housing.
    Type: Application
    Filed: May 28, 2008
    Publication date: January 8, 2009
    Inventors: Klaus Becker, Martin Buermann, Klaus Braunhardt, Peter Pirro
  • Publication number: 20080058040
    Abstract: The invention concerns a harvested crop processing unit with a rotor, a rotor housing enclosing the rotor, a cover element of the rotor housing, and a first group of helical guide rails that can be moved relative to the cover element between an operating position in which they are located underneath the cover element in engagement with harvested crop and a non-operating position in which they are located above the cover element. The invention proposes that a second group of helical guide rails be provided that can be moved alternately with the first group of helical guide rails relative to the cover element between an operating position in which they are located underneath the cover element in engagement with harvested crop and a non-operating position in which they are located above the cover element, and that are provided with an inclination that differs from the inclination of the guide rail of the first group.
    Type: Application
    Filed: August 24, 2007
    Publication date: March 6, 2008
    Inventors: Martin Buermann, Klaus E. Becker, Klaus A. Braunhardt, Peter Pirro
  • Patent number: 7261632
    Abstract: A self-propelled harvesting machine having an internal combustion engine, a propulsion system that can be operated to cause the harvesting machine to move across a field with a propulsion speed, a crop material pick-up device for picking up the crop material from a field, a crop material processing device for processing the crop material that has been picked up, a control unit for specifying the speed of the internal combustion engine, and a through-put measurement device for determining the through-put of the harvesting machine. The control unit can be operated to vary the speed of the internal combustion engine depending on the signal from the through-put measurement device. In this manner the RPM of the internal combustion engine that is most favorable in terms of fuel consumption and that corresponds to the power to be applied at a given through-put can be specified.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: August 28, 2007
    Assignee: Deere & Company
    Inventors: Peter Pirro, Jürgen Hofer, Stefan Bohrer, Rainer Schäfer, Steffen Clauss
  • Patent number: 7189160
    Abstract: It is proposed that a sensor ascertain a parameter of the harvested crop and send a signal used for changing the speed of feeding devices for the chopping and/or the speed of the chopping device in order for automatically obtaining a change in the length of the cut of the chopping device.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: March 13, 2007
    Assignee: Deere & Company
    Inventor: Peter Pirro
  • Publication number: 20060191251
    Abstract: A harvesting machine including a chopper mechanism for cutting harvested crop into short lengths, a crop feed arrangement for feeding the harvested crop to the chopper means and a drive arrangement for driving the crop feed arrangement and the chopper means. The drive arrangement including at least one adjustable component for driving one of the crop feed arrangement or chopper means at a variable speed thereby changing the length into which the harvested crop is cut. A control device is connected to the adjustable component and to a crop parameter sensor to measure at least one parameter of the crop being harvested. The control device automatically controls the adjustable component such that the length into which crop is cut by the chopper mechanism is a function of the sensed crop parameter.
    Type: Application
    Filed: December 12, 2005
    Publication date: August 31, 2006
    Inventors: Peter Pirro, Christophe Debain, Bernard Benet, Michel Berducat
  • Publication number: 20050279073
    Abstract: The agricultural harvesting machine having a crop picking head includes a pickup conveyer which can be driven so as to pick up the harvested crop at a first adjustable speed, a discharge conveyer which can be driven so as to receive the harvested crop picked up by the pickup conveyer, transport the harvested crop, and discharge the harvested crop at a second adjustable speed, and a feed-in conveyer disposed in a feed-in channel of the harvesting machine that can be driven so as to receive the harvested crop from the discharge conveyer, transport the harvested crop, and discharge the harvested crop to a harvested crop processing unit at a third adjustable speed. The third speed and the first speed are independent of one another, and the second speed is defined by the first and third speeds and falls in a range between the first and third speeds.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 22, 2005
    Inventors: Steffen Clauss, Stefan Bohrer, Rainer Schafer, Jurgen Hofer, Peter Pirro
  • Publication number: 20050279070
    Abstract: A self-propelled harvesting machine having an internal combustion engine, a propulsion system that can be operated to cause the harvesting machine to move across a field with a propulsion speed, a crop material pick-up device for picking up the crop material from a field, a crop material processing device for processing the crop material that has been picked up, a control unit for specifying the speed of the internal combustion engine, and a through-put measurement device for determining the through-put of the harvesting machine. The control unit can be operated to vary the speed of the internal combustion engine depending on the signal from the through-put measurement device. In this manner the RPM of the internal combustion engine that is most favorable in terms of fuel consumption and that corresponds to the power to be applied at a given through-put can be specified.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 22, 2005
    Inventors: Peter Pirro, Jurgen Hofer, Stefan Bohrer, Rainer Schafer, Steffen Clauss
  • Patent number: 6886314
    Abstract: A crop chopping arrangement for a forage harvester includes a shearbar mounted adjacent a path swept by chopping knives of a chopper drum and being selectively adjustable toward and away from said path so as to adjust the distance between the shearbar and knives as they pass by the shearbar. An arrangement for measuring and/or checking the distance between the shearbar and the knives includes a vibration sensor located to measure the mechanical vibrations in the shearbar produced by the moving knives, and an electronic evaluation circuit. The evaluation circuit is operable for performing a frequency analysis of the signal provided by the vibration sensor so as to derive information indicative of the distance between the shearbar and knives.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: May 3, 2005
    Assignee: Deere & Company
    Inventors: Peter Pirro, Steffen Clauss
  • Publication number: 20040182061
    Abstract: A crop chopping arrangement for a forage harvester includes a shearbar mounted adjacent a path swept by chopping knives of a chopper drum and being selectively adjustable toward and away from said path so as to adjust the distance between the shearbar and knives as they pass by the shearbar. An arrangement for measuring and/or checking the distance between the shearbar and the knives includes a vibration sensor located to measure the mechanical vibrations in the shearbar produced by the moving knives, and an electronic evaluation circuit. The evaluation circuit is operable for performing a frequency analysis of the signal provided by the vibration sensor so as to derive information indicative of the distance between the shearbar and knives.
    Type: Application
    Filed: January 27, 2004
    Publication date: September 23, 2004
    Applicant: Deere & Company, a Delaware corporation
    Inventors: Peter Pirro, Steffen Clauss
  • Publication number: 20030217538
    Abstract: Disclosed is a device for adjusting the cutting length of a chopping device. It is proposed that a sensor ascertain a parameter of the harvested crop and that the cutting length of the chopping device be adjusted automatically as a function of the measured parameter.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 27, 2003
    Applicant: Deere & Company, a Delaware corporation
    Inventor: Peter Pirro