Delaval Holding Ab

Nils Alveby

Jan Kassibrahim

Anneli Lidmar

Viktoria Noresson

A teatcup liner includes a head defining a mouthpiece, a barrel with an upper barrel joined to a lower barrel, an outlet portion that extends downward from the lower barrel co-operates with the shell of the teat cup. In a relaxed state, the barrel has a polygonal cross-sectional shape, with the lower barrel having a flexibility for closing during the liner collapse phase of the milking operation greater than a flexibility of the upper barrel such that corner portions of the lower barrel are weaker than the corner portions of the upper barrel thereby assuring the lower barrel collapses first to create an upward wave movement of the lower barrel towards the upper barrel that securely collapses the upper barrel onto the teat to provide an enhanced teat massage and relieve congestion in the teat tissue.

Secure collapse teatcup liner

A teatcup liner, for use in a method of providing enhanced teat massage during a milking operation, includes a cross-sectional shape defining plural corner portions and plural side portions with a first side portion being a weak side and each remaining side portion being a strong side; with the weak side having a greater flexibility than each strong side such that during a collapse phase, the collapse of the weak side occurring first and being greater than the collapse of each strong side creates an asymmetric pressure distribution with a greater pressurized area resulting in a prolonged contact surface against the teat end across a first surface region of the cross-sectional shape opposite the weak side as compared to a remainder of the cross-sectional shape, the increased pressurized area across the first surface region providing an enhanced teat massage during the collapse phase.

Teatcup liner with enhanced teat massage

A teatcup and a teatcup liner for a teatcup to be attached to a teat of an animal for the performance of a milking operation. The teatcup liner defines an inner space for receiving the teat and a longitudinal center axis extending through the inner space. The teatcup liner is composed of at least three separate annular sections, which are attached to each other and arranged successively after each along the longitudinal center axis. A first section forms an upper part having an opening for allowing the teat to be introduced into the inner space. A second section forms a tube part engaging the teat during the milking operation. A third section forms a ring module having an inner surface facing the inner space. The ring module includes a functional member providing an additional function to the milking operation.

Teatcup liner and a teatcup

Teat cup liner

The invention refers to a teatcup liner, a teatcup and a milking member. The liner () is mountable in a teatcup shell () having a first end () and a second end () to extend through the shell, and forms an inner space to receive a teat and an outer space () between the shell and the liner. The liner includes an opening at the first end for introducing a teat into the inner space. The liner includes a grip area () to be gripped by a grip portion () of the shell. The grip area has a non-circular shape. The liner includes a connection portion () arranged to connect the liner to the first end and including an annular recess. The connection portion includes a bridge of material () arranged to define at the most two possible rotary positions for the liner in relation to the teatcup shell. The bridge extends in the annular recess and is arranged to engage a corresponding recess () extending from the first end of the shell.

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Bandhagen, Sweden

Nils Alveby