Patents by Inventor Jan Willem SCHRADER

Jan Willem SCHRADER 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: 9032907
    Abstract: The invention relates to a device for and method of milking dairy animals, in particular cows. The device and method have been improved in order to enhance the efficiency of use. In one embodiment, for the milking, teat cups are connected by means of a robot arm to respective teats of the dairy animal. This makes it possible to start the milking of the teats of the dairy animal. A milk flow from the respective teat can be measured. The milking can be ended by means of a control unit in dependence on a comparison value which is calculated on the basis of a milking parameter representative of a milk flow from the respective teat and in dependence on a deactivation threshold. According to the invention, the milking of the last teat is ended in dependence on a last-teat period to be calculated.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: May 19, 2015
    Assignee: LELY PATENT N.V.
    Inventors: Jan Willem Schrader, Pieter Gerlof De Groot
  • Patent number: 8616154
    Abstract: A device for and method of milking dairy animals, in particular cows includes teat cups that are connected by a robot arm to respective teats of the dairy animal. This makes it possible to start the milking of the teats of the dairy animal. A milk flow from the respective teat can be measured. The milking can be ended by a control unit in dependence on a comparison value which is calculated on the basis of a milking parameter representative of a milk flow from the respective teat and in dependence on a deactivation threshold. A second manner of calculating is used for calculating the comparison value of the last teat. The milking of the last teat can also depend on the moment of ending the milking of the one-but-last teat.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: December 31, 2013
    Assignee: Lely Patent N.V.
    Inventors: Jan Willem Schrader, Pieter Gerlof De Groot
  • Publication number: 20110247564
    Abstract: The invention relates to a device for and method of milking dairy animals, in particular cows. In one embodiment, for the milking, teat cups are connected by means of a robot arm to respective teats of the dairy animal. This makes it possible to start the milking of the teats of the dairy animal. A milk flow from the respective teat can be measured. The milking can be ended by means of a control unit in dependence on a comparison value which is calculated on the basis of a milking parameter representative of a milk flow from the respective teat and in dependence on a deactivation threshold. According to the invention, a second manner of calculating is used for calculating the comparison value of the last teat. The milking of the last teat can also depend on the moment of ending the milking of the one-but-last teat.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 13, 2011
    Applicant: LELY PATENT N.V.
    Inventors: Jan Willem SCHRADER, Pieter Gerlof GROOT DE
  • Publication number: 20110247563
    Abstract: The invention relates to a device for and method of milking dairy animals, in particular cows. The device and method have been improved in order to enhance the efficiency of use. In one embodiment, for the milking, teat cups are connected by means of a robot arm to respective teats of the dairy animal. This makes it possible to start the milking of the teats of the dairy animal. A milk flow from the respective teat can be measured. The milking can be ended by means of a control unit in dependence on a comparison value which is calculated on the basis of a milking parameter representative of a milk flow from the respective teat and in dependence on a deactivation threshold. According to the invention, the milking of the last teat is ended in dependence on a last-teat period to be calculated.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 13, 2011
    Applicant: LELY PATENT N.V.
    Inventors: Jan Willem SCHRADER, Pieter Gerlof GROOT DE
  • Publication number: 20080216750
    Abstract: A method of stimulating the teats of the udder of an animal comprises determining the dead milking time per udder or per quarter during a number of milkings and checking, on the basis of these historical data, whether a respective quarter has to be pre-stimulated and, if so, during what period of time. A pulsator controlled in three phases, makes it possible to adapt the suction-rest ratio of the pulsator at quarter level on the basis of the milk flow profile of the respective udder quarter.
    Type: Application
    Filed: May 21, 2008
    Publication date: September 11, 2008
    Applicant: MAASLAND N.V.
    Inventor: Jan Willem SCHRADER