Patent ID: 7544917

Claim:
A curd preparation vat comprising a holder with a holder wall and a central shaft which carries cutting and/or stirring members and which, adjacent at least one of the ends, passes through the holder wall, which curd preparation vat is provided with at least one sealing construction for the shaft passing through the holder wall, which sealing construction has at least one receiving space and a sealing ring included therein in operation, surrounding the shaft, wherein the sealing ring has an annular body which is provided with a sealing lip which cooperates with a surface of the sealing construction extending radially relative to the shaft, and wherein the annular body furthermore has an axially inner surface abutting against first positioning means of the sealing construction, which first positioning means are stationary relative to the holder wall, wherein the sealing lip of the sealing ring extends both radially and axially obliquely outwards from both a radially and axially outer edge area of the annular body, and in that between the sealing lip and the inner surface of the annular body that abuts against the shaft, an axially outer surface of the annular body is situated, which cooperates directly with second positioning means, which second positioning means are stationary relative to the holder wall and which leave the lip clear, for fixing the sealing ring between the first and second positioning means.