Animal husbandry – Milkers – Teat compressor or cup
Patent
1980-10-08
1982-03-23
Chamblee, Hugh R.
Animal husbandry
Milkers
Teat compressor or cup
119 145, A01J 506
Patent
active
043207189
ABSTRACT:
A rubber teat holder has a head portion rotationally symmetrical with respect to a longitudinal axis and with an inlet opening for the teat, and has a holding edge for gripping over a milking cup sleeve. The head portion is formed by a wall which first gradually enlarges radially from said inlet opening in a direction along the longitudinal axis and then tapers back to a flexible suction sleeve which is connected to the head portion and is slightly conical or substantially cylindrical. Upon application of an axial force on the edge of the inlet opening the upper enlarging part of the head portion, which forms a flexible lip at the inlet opening, can move relative to the lower tapering part of the head portion around a part of the head portion, which part acts as a first spring joint. The first spring joint is formed by the wall portion approximately at the maximum outside diameter of the head portion. The wall acts as a second spring joint in the lower end of the tapering part of the head portion, at the height of a cross plane perpendicular to the longitudinal axis, in response to axial pressure on the inlet opening of the teat holder. The wall portion between the first and second spring joints is pivotable about the second spring joint like a lever of approximately constant length, under enlargement of the outside diameter of the head portion. The connecting line which (as viewed in central cross section ) connects the first and second spring joints defines an angle not greater than 45.degree. with the cross plane. The mean diameter of the tapering head portion is smaller at the level of the second spring joint than the largest inside diameter of the milking cup sleeve.
REFERENCES:
patent: 2744496 (1956-05-01), Roben
Hoefelmayr Tilmann
Maier Jakob
Biomelktechnik Swiss Hoefelmayr & Co.
Chamblee Hugh R.
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