Patents Assigned to Cornelis van der Lely N.V.
  • Patent number: 4805557
    Abstract: A mechanism that automatically attaches teat cups to a cow's teats including four telescopically extensible members which each carry a teat cup via a teat cup support which resiliently supports its corresponding teat cup in an upright position. Each extensible member has its own stepper motor to raise and lower the corresponding teat cup and a further stepper motor to move the extensible member horizontally within limits. An ultra-sonic radiation member is carried on a platform between the teat cups as seen in plan which emits a horizontal ultra-sonic beam that is reflected and focused upwardly and caused by movement of the reflector systematically to scan the cow's udder and to locate the teats by their comparatively shorter distances from the reflector. The disposition of the teats is thus sensed by a sensor unit which controls a stepper motors and causes the extensible members independently to raise the teat cups to be received by and attached to corresponding teats for the milking operation.
    Type: Grant
    Filed: January 15, 1987
    Date of Patent: February 21, 1989
    Assignee: Cornelis van der Lely, N.V.
    Inventors: Ary van der Lely, Cornelis J. G. Bom
  • Patent number: 4173260
    Abstract: An agricultural implement has a main frame and laterally positioned carrier frames pivoted to the sides of the main frame. The main frame extends forward to a coupling point for connection to a prime mover. The rear of the main frame mounts a hydraulic piston assembly that is interconnected to each carrier frame to elevate same into an upward tilted transport position. Each frame and carrier frame supports a frame portion having a respective group of rotatable soil working members positioned in a row to work a broad path during working operation. Connecting members on the carrier frames are connected to the central frame portion to raise same when the carrier frames are in their tilted transport positions. Latches supported on the main frame secure beams of the carrier frames in their tilted positions until release.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: November 6, 1979
    Assignee: Cornelis van der Lely N.V.
    Inventors: Ary van der Lely, Cornelis J. G. Bom