Patents by Inventor Steffen Graef

Steffen Graef 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: 11592134
    Abstract: Apparatus for spreading fluids and in particular fertilizers, pesticides and similar fluids, with a connection for attaching said apparatus to a machine, with a tubular body for conducting the fluid, and with a first outlet device via which the fluid can be discharged. The outlet device can be fixed at various positions in a longitudinal direction of the tubular body such that a position of the outlet device can be selected relative to the tubular body.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: February 28, 2023
    Inventors: Steffen Graef, Thomas Schenk, Franz Renner
  • Patent number: 11533900
    Abstract: An apparatus for spraying flowable media and in particular plant protection agents onto plants, has at least a first spray unit and a second spray unit wherein each of the spray units has a tubular conduit unit that extends in a predetermined longitudinal direction and is suitable and intended for conducting a flowable plant protection agent, and wherein each of the spray units has at least one spray head that is in flow communication with the conduit unit associated therewith. The spray units are provided in a pivotable manner in relation to a predetermined pivot axis on a carrier, and the apparatus has an adjustment unit that allows both the first spray unit and the second spray unit to be pivoted between a working position and an idle position.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: December 27, 2022
    Inventors: Steffen Graef, Thomas Schenk, Martin Ziermann
  • Patent number: 10961108
    Abstract: Disclosed is a device for filling tanks from a canister with a first adapter device which is suitable for at least intermittent fastening to the canister and which has a delivery device by which a flowable medium can be conveyed out of the canister into the tank, wherein the device has a flushing agent connection in order to deliver a cleaning liquid to at least one component of the device. The device has a further receiving container to temporarily receive the flowable medium to be introduced into the tank, and the device has a measuring device which is suitable and intended to determine the amount of liquid to be introduced into the tank.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: March 30, 2021
    Inventor: Steffen Graef
  • Publication number: 20200178512
    Abstract: An apparatus for spraying flowable media and in particular plant protection agents onto plants, has at least a first spray unit and a second spray unit wherein each of the spray units has a tubular conduit unit that extends in a predetermined longitudinal direction and is suitable and intended for conducting a flowable plant protection agent, and wherein each of the spray units has at least one spray head that is in flow communication with the conduit unit associated therewith The spray units are provided in a pivotable manner in relation to a predetermined pivot axis on a carrier, and the apparatus has an adjustment unit that allows both the first spray unit and the second spray unit to be pivoted between a working position and an idle position.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 11, 2020
    Inventors: Steffen GRAEF, Thomas SCHENK, Martin ZIERMANN
  • Patent number: 10480700
    Abstract: A nozzle device for dispensing flowable substances, having a support and a nozzle element arranged at least in part within this support, which element is suitable and intended for dispensing the flowable substance, and having a first coupler, in order to arrange the nozzle device detachably to a supply for the flowable substance. According to the invention, the nozzle device has a second coupler in order to fasten the nozzle device detachably to a further nozzle device.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 19, 2019
    Assignee: AGROTOP GMBH
    Inventor: Steffen Graef
  • Publication number: 20190308868
    Abstract: Disclosed is a device for filling tanks from a canister with a first adapter device which is suitable for at least intermittent fastening to the canister and which has a delivery device by which a flowable medium can be conveyed out of the canister into the tank, wherein the device has a flushing agent connection in order to deliver a cleaning liquid to at least one component of the device. The device has a further receiving container to temporarily receive the flowable medium to be introduced into the tank, and the device has a measuring device which is suitable and intended to determine the amount of liquid to be introduced into the tank.
    Type: Application
    Filed: May 31, 2017
    Publication date: October 10, 2019
    Inventor: Steffen GRAEF
  • Publication number: 20190170282
    Abstract: Apparatus for spreading fluids and in particular fertilizers, pesticides and similar fluids, with a connection for attaching said apparatus to a machine, with a tubular body for conducting the fluid, and with a first outlet device via which the fluid can be discharged. The outlet device can be fixed at various positions in a longitudinal direction of the tubular body such that a position of the outlet device can be selected relative to the tubular body.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 6, 2019
    Inventors: Steffen GRAEF, Thomas SCHENK, Franz RENNER
  • Patent number: 9834429
    Abstract: A device for the contamination-free filling of a tank from a canister is provided.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: December 5, 2017
    Assignee: BAYER CROPSCIENCE AG
    Inventors: Joerg Oeser, Reinhard Friessleben, Steffen Graef, Franz Renner, Markus Felixberger, Stefan Nissl
  • Publication number: 20170165699
    Abstract: A nozzle device for dispensing flowable substances, having a support and a nozzle element arranged at least in part within this support, which element is suitable and intended for dispensing the flowable substance, and having a first coupler, in order to arrange the nozzle device detachably to a supply for the flowable substance. According to the invention, the nozzle device has a second coupler in order to fasten the nozzle device detachably to a further nozzle device.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 15, 2017
    Inventor: Steffen Graef
  • Publication number: 20150166321
    Abstract: A device for the contamination-free filling of a tank from a canister is provided.
    Type: Application
    Filed: June 28, 2013
    Publication date: June 18, 2015
    Inventors: Joerg Oeser, Reinhard Friessleben, Steffen Graef, Franz Renner, Markus Felixberger, Stefan Nissl
  • Patent number: 5615836
    Abstract: An injector nozzle construction for producing air-filled drops of liquid includes a dosaging nozzle element coupled at its outlet to a mixing chamber provided with an air intake opening for producing a liquid/air mixture which in turn communicates with an outlet element for discharging the mixture. A particularly great uniformity and largely fluctuation-free distribution characteristic of the drops of fluid is achieved by providing between the mixing chamber and the outlet element a homogenizing and stabilizing chamber having an inlet that is substantially greater in cross-sectional size than the outlet of the mixing chamber.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: April 1, 1997
    Inventor: Jordt-Steffen Graef
  • Patent number: 5037032
    Abstract: A flat spray nozzle containing a nozzle carrier, a nozzle orifice and a pre-nozzle. The pre-nozzle is releasably connected to the nozzle orifice. In this way on the one hand good centering of the pre-nozzle is ensured and on the other hand handling, especially cleaning, is made substantially easier.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: August 6, 1991
    Assignee: agrotop GmbH
    Inventor: Steffen Graef
  • Patent number: 4491023
    Abstract: A device and a method for checking and/or measuring the actual discharge amount of plant protective substances sprayed from a plant protective spraying machine; the device is a measuring container provided with a scale indicating the volume of liquid and with additional markings for determining the corresponding discharge amounts in liters per hectares for various driving speeds. Alternatively, the device is a spring balance with markings in connection with a measuring container holding the liquid to be measured, which markings determine the discharge values in liters per hectares for various driving speeds.
    Type: Grant
    Filed: October 28, 1981
    Date of Patent: January 1, 1985
    Inventor: Steffen Graef