Patent ID: 11873942
Assignee: TENARIS CONNECTIONS B.V.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 20:
21. The method of claim 20, wherein the main mould is configured to form the main body comprising a further support portion having an at least partly radially extending annular further seal support surface, and the method comprises:
placing a further lip seal mould over the further seal support surface,
injecting a third polymeric material in the further lip seal mould which is a further axial lip seal mould configured to form a further axial lip seal having a third elastic modulus being lower than the first elastic modulus and comprising:
an annular further lip base portion which extends radially along at least part of the further seal support surface and is attached to the further seal support surface by overmoulding,
an annular support base portion which extends radially along at least part of the further seal support surface and is attached to the further seal support surface by overmoulding, and
an annular base contact surface located on the support base portion and configured to, in use, contact a lip contact surface located on the lip, wherein:
the further lip base portion and the support base portion are radially spaced from each other,
the further lip and the support base portion are axially spaced from each other,
the further axial lip seal comprises an annular seal opening located between the lip contact surface and the base contact surface, and
the seal opening provides access to an annular empty space which in a cross-section view along the longitudinal axis is surrounded by the further lip, the further lip base portion, and the support base portion,

wherein the further axial lip seal mould comprises an annular space mould portion configured to form the empty space of the further axial lip seal, and

removing the annular space mould portion via the seal opening of the further axial lip seal after the third polymeric material has been injected in the further axial lip seal mould.