Patent ID: 6640744
Filing Date: 2003-11-04
Classification: A01J

Abstract:
A liner for use with a substantially undeformable teatcup shell for forming a two-chambered teatcup, by means of which milk is extracted from a teat in a suction milking process through a milking vacuum provided during a milking phase, and the teat is massaged during a rest phase, whereinthe liner comprises a head part that is substantially rotationally symmetrical relative to its longitudinal axis and a barrel part that is connected to the head part by means of a transitional part, the head part is formed as an annular tube, which forms an insertion opening for the teat, the annular tube is configured such that an annular hollow space is defined by the teat, the transitional part and the annular tube once the teat is introduced into the barrel part, the inner width of the insertion opening of the annular tube is smaller than the maximum inner width of the barrel part, and the annular tube is sufficiently flexible that the inner width of its insertion opening is enlargeable radially outward and its axial length is changeable during introduction of the teat.