Patent ID: 7634972

Claim:
In an electronic vacuum pulsating machine for milking domestic animals, including a teat cup, such as cows and goats, including a teat cup, an elongated teat cup liner located inside said teat cup; said teat cup liner having a proximal portion in communication to a milking vacuum system and a milk pail and an distal portion in communication with the animal teat; said teat cup liner comprising: a. a plurality of segments barriered by a means of one or more expandable/collapsible rings, said one ore more expandable/collapsible ring are elastomeric rubber-like sleeve structure preventing the liner from collapsing at the milk extracting pulls; said one or more expandable/collapsible rings is adapted to contract and/or expand in a manner selected from a ring after a ring and/or rings after rings; and, b. a vacuum duct comprising a plurality of vacuum valves, said inlet opening of the duct is in communication with an effective vacuum source; each of said valve is in communication with one or more rings and is adapted to provide a reversible expansion/collapsing of said elastomeric rubber-like sleeve according to a predetermined pulse control provided by a pulsator; wherein vacuum or air flows from the vacuum/atmospheric-pressure source, via the vacuum duct and vacuum valve to the segments in a distal-to-proximal direction, such that said ring expands and milk is filling said segment whilst said ring is vacuumed from the udder, then the vacuum pulse is terminated in the manner that said ring collapses and a beginning of a new cycle is provided until the animal's udder is empty.