Animal husbandry – Antivermin treating or cleaning – Process
Reexamination Certificate
2000-06-05
2001-11-20
Poon, Peter M. (Department: 3643)
Animal husbandry
Antivermin treating or cleaning
Process
Reexamination Certificate
active
06318299
ABSTRACT:
The present invention relates to an apparatus according to the preamble of claim
1
for cleaning the teats of animals.
A problem when milking dairy animals is how to ensue that the teats of the animal are clean before milking commences. As manual teat cleaning is labour-intensive, inefficient and time consuming various machines for cleaning teats have been proposed.
The German patent DE 127 384 describes a device with a plurality of elongated brushes mounted vertically on a holder. The brushes are arranged in a circle. The brushes can rotate continuously about their vertical central axis and have horizontally projecting bristles which can brush the surface of any teats introduced vertically down between the brushes in the centre of the circle of brushes. The brush are radially immovable which means that it is not possible to change the size of the hole in the centre of the circle of brushes into which the teat is received. The size of this hole is therefore chosen as a compromise between a size which is too small to receive the largest conceivable teat and too big to adequately clean the smallest conceivable teat. This means that there will always be some teats which are too small or too large to be properly cleaned
An object of the present invention is to overcome the problems of the prior art teat cleaning devices. These problems are overcome by a teat cleaning device having the features mentioned in the characterising portion of claim
1
.
In the present invention a rotatable teat cleaning means is provided having movable cleaning surfaces which in a rest position lie in positions near to the periphery of the teat cleaning means and which are movable to cleaning positions near to the centre of the teat cleaning means when the teat cleaning means rotates.
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patent: 4305346 (1981-12-01), Sparr, Sr.
patent: 5211132 (1993-05-01), Farina et al.
patent: 5235937 (1993-08-01), Farina et al.
patent: 5383423 (1995-01-01), van der Lely
patent: 5673650 (1997-10-01), Mottram et al.
patent: 6055930 (2000-05-01), Stein et al.
patent: 6155204 (2000-12-01), van der Lely et al.
patent: 127 384 (1977-09-01), None
patent: 2 272 626 (1994-05-01), None
patent: 93-187028/23 (1992-06-01), None
DeLaval Holding AB
Jakel Kevin
Poon Peter M.
Young & Thompson
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