Title: Teatcup liner and method for mfg. same
Application Number: 97181231 Application Date: 1997.11.04
Publication Number: 1242688 Publication Date: 2000.01.26
Approval Pub. Date: 2004.04.07 Granted Pub. Date: 2004.04.07
International Classifi-cation: A01J5/08
Applicant(s) Name: Alfa Laval Agri AB Address:
Inventor(s) Name: T. K. I. Petterson
Attorney & Agent: zhou beilin
Abstract:
    A teatcup liner (1) which is intended for being mounted in a teatcup shell (2) comprises a tubular head portion (4) forming a passage for receiving a teat. The passage extends between a first and a second axial end of the tubular head portion. The tubular head portion has an annular lip (8), which in the mounted as well as the non-mounted state of the teatcup liner (1) extends radially inwardly from the tubular head portion. Furthermore, the teatcup liner comprises a tubular shaft portion (5), which extends from a second axial end (7) of the head portion, and a member (14), which is arranged to provide a radially outwardly directed pretension in the lip in the mounted as well as the non-mounted state of the teatcup liner (1), and is located outside said passage. A method of manufacturing such a teatcup liner comprises the steps of moulding the teatcup liner, expanding the head portion, and providing the pretensioning member.
Time: 19