Variable shut off teat cup liner

Details Variable shut off teat cup liner Variable shut off teat cup liner

A - Human Necessities

01

J

A01J 5/04 (2006.01) A01J 5/08 (2006.01)

Patent

CA 2415502

A variable shut off teat cup liner has a mouthpiece, a barrel and a short milk tube adapted for mounting onto a nipple of a milking claw. The short milk tube includes a segment intended for engagement with an edge of the nipple defining an opening, the segment being intended for bending over the opening to substantial close it to passage of vacuum-drawn air therethrough when the teat cup liner is in a non-milking generally downwardly bending position. The segment preferably includes a multiplicity of circumferentially extending grooves and a multiplicity of longitudinally extending grooves which form lugs. When the segment is bent over the opening, the lugs provide improved cut resistance. The circumferentially extending grooves have different axial spacing whereby the amount of overlap of the short milk tube over the nipple maybe varied to provide the proper amount of bending according to the weight of the teat cup receiving the liner and the existing environmental conditions.

Un manchon-trayeur à arrêt variable se compose d'un embout, d'un corps et d'un court tube de traite adapté pour être monté sur un raccord de la griffe de traite. Le court tube de traite comprend un segment destiné à s'engager dans un bord du raccord définissant une ouverture, le segment étant prévu pour se plier au-dessus de l'ouverture pour enfermer le plus possible le passage d'air soutiré sous vide lorsque le manchon-trayeur est orienté vers le bas dans une position de non-traite. Le segment comprend de préférence de multiples rainures circonférentielles et de multiples rainures longitudinales formant des pattes. Lorsque le segment est plié au-dessus de l'ouverture, les pattes assurent une résistance accrue à l'arrêt. Les rainures circonférentielles ont différents espacements axiaux et le chevauchement du court tube de traite sur le raccord peut varier pour permettre le pliage approprié en fonction du poids du gobelet de traite qui reçoit le manchon et des conditions environnementales existantes.

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