Animal husbandry – Milkers – Teat compressor or cup
Reexamination Certificate
2005-07-26
2005-07-26
Price, Thomas (Department: 3643)
Animal husbandry
Milkers
Teat compressor or cup
Reexamination Certificate
active
06920840
ABSTRACT:
An apparatus for installing and removing a teat cup liner (or “inflation”) from a shell has a fixture which holds and retains the shell in position. A pair of shoes is capable of moving to engage a portion of the liner projecting from the shell to pull the liner downwardly. In an installation mode, the liner is pulled so that a sealing ring on the liner moves through a restricted opening into a sealing relationship with the shell at one end. The resiliency of the liner also causes a seal to be formed at the other end of the shell. In a removal mode, the liner is stretched by movement of the shoes in the same way as installation. A cutter of the apparatus is then activated to sever an end portion of the liner, including the sealing ring from the remainder of the liner, releasing the liner from the shell.
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G.M. Jones. The Role of Milking Equipment in Mastitis, Virginia Cooperative Extension. Dairy, 8 pp., Publication 404-742, Reprinted 1999, Virginia.
Michel A. Wattiaux, Principles of Milking, Babcock Institute, pp. 81-84, Wisconsin. Admitted prior art.
Milking Management Services 2001, Tech Notes, 6 pp., printed from http://www.milkingmanagement.co.uk/machinetesting/tecnotes.htm Aug. 4, 2002.
Proper Use and Care of Inflations, Producing Quality Milk, pp. 96-97. Admitted prior art.
Sloan Don M.
Sloan Patrick E.
Price Thomas
Senniger Powers
Sloan Manufacturing, Inc.
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