Milking machine and a method of milking by means of the same

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United States of America Patent

PATENT NO 5090359
SERIAL NO

07571616

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A milking apparatus comprises a teat cup (2) with a liner (3), means (6-8, 9-11, 13-15) for subjecting the interior of the liner to a pressure which is lower than atmospheric pressure, and for subjecting the pulsation chamber (5) formed between the teat cup and the liner to a pulsating pressure varying between a low pressure and a high pressure, which high pressure is higher than the pressure in the interior of the liner. Means are provided (12, 16, 18) for controlling the respective pressures in the liner and the pulsation chamber. A flow sensing member (17) senses the flow of the milk which during milking increases to a main flow, then amounts to the main flow, and diminishes from the main flow in a terminating phase of milking. The pressure control means is adapted to control the various pressures in response to the flow sensing member (17) sensing during the terminating milking phase that the milk flow has diminished to a predetermined portion of the main flow, such that the low pressure in the pulsation chamber is higher than the pressure in the liner, at least during a part of the terminating milking phase.

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Patent Owner(s)

Patent OwnerAddress
ALFA-LAVAL AGRICULTURE INTERNATIONAL AB A CORP OF TUMBA SWEDENFARM CENTER BOX 39 S-147 21 TUMBA

International Classification(s)

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  • 1990 Application Filing Year
  • A01J Class
  • 28 Applications Filed
  • 2 Patents Issued To-Date
  • 7.15 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances199019911992199319940255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pettersson, Torbjorn Gnesta, SE 4 62
rnerfors, Benny Hagersten, SE 2 32

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  • 13 Citation Count
  • A01J Class
  • 0 % this patent is cited more than
  • 33 Age
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