Animal husbandry – Milkers – With signals – indicators – registers – and timers
Reexamination Certificate
2006-08-29
2011-10-18
Nguyen, T. (Department: 3644)
Animal husbandry
Milkers
With signals, indicators, registers, and timers
C119S014080
Reexamination Certificate
active
08037845
ABSTRACT:
A detecting arrangement for a magnetic gripper device (3) mountable on a robot arm (10) of a milking robot (2) provided for automatically attaching teat cups (5) to the teats of a milking animal, wherein the magnetic gripper device is adapted for gripping teat cups made of or comprising a magnetic material and comprises a primary coil (31) feedable with a current and a core (33) of a magnetic material arranged at least partly within the primary coil. The detecting arrangement comprises means (41, 43; 43; 53) for repetitively sensing a magnetic field, an inductance, or a change thereof, as caused by a teat cup (5) when being present at, or gripped by, the magnetic gripper device (3); and means (44; 54) for repetitively detecting whether the magnetic gripper device is holding a teat cup or not based on said repetitive sensing of the magnetic field, the inductance, or the change thereof.
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Search report for corresponding European Patent Application No. EP 06 78 4120 dated Aug. 5, 2010.
Delaval Holding AB
Harness & Dickey & Pierce P.L.C.
Nguyen T.
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