Title: Milking devices
Application Number: 200580019204 Application Date: 2005.06.01
Publication Number: 1976580 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A01J5/08;B29D31/00;C08J5/00;B29D23/00
Applicant(s) Name: Delaval Holding AB Address:
Inventor(s) Name: Pettersson Torbjoern;Kassibrahim Jan;Odeberg Johan
Attorney & Agent: liujie zhaosu lin
Abstract:
    A milking device according to the invention comprises at least a teat-receiving flexible sleeve, adapted to be positioned on/over a teat. A first portion thereof comprises a material, selected from the group consisting of thermo-plastic elastomers (TPE), as defined in ISO 18064, and a second portion thereof comprises a material selected from the group consisting of thermoplastics. The method of making a milking device, in particular a teat cup liner, is a molding process carried out in two or more steps. In the first step, a thermoplastic, preferably polypropylene (PP) or polyamide (PA), is injected in a mold defining only those portions of the device that are to exhibit a higher stiffness or rigidity, such as couplings. The stiffer parts, are demolded from the mold, and placed in a second mold, into which, as a second molding step, a suitable TPE is injected. Further steps can be performed if required by the design.
Time: 19
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