Dairy milking devices and methods

A teat cup assembly comprising:

• a milking liner having a short milk tube and an integrated short air tube;
• a shell disposed around a portion of the milking liner;
• and
• the short air tube having a plurality of outlets disposed inside the shell.

A milking liner comprising:

• a barrel adapted to receive the teat of the animal to be milked;
• a short milk tube;
• a transition bead disposed between the barrel and the short milk tube;
• and
• the transition bead defining a seat adapted to receives a portion of a milking shell;
• the seat having a non-circular cross sectional shape such that a lower end of the shell matching the shape of the seat can only be properly seated in a single orientation.

A milking liner comprising:

• a barrel adapted to receive the teat of the animal to be milked;
• a short milk tube connected to the barrel;
• and
• a short air tube connected to the short milk tube;
• the short air tube having an lower end that is offset from a lower end of the short milk tube.