B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
4/29, 18/911
B28B 11/04 (2006.01) E03D 11/02 (2006.01)
Patent
CA 1084665
ABSTRACT OF THE DISCLOSURE The invention is a molding process adapted fox the production of plumbing fixtures, such as a toilet whose functional surfaces are resistant to erosion by moving water wherein a ceramic shell forms a liner having external surfaces and the functional surfaces of the plumbing fixture. In the case of the toilet the ceramic shell includes a bowl, siphon trap and a water flush ring. The molding process includes the steps of coating the external surfaces of the ceramic shell with a layer of resilient material and then suspending the ceramic shell upside down within a female mold member having internal surface so that the internal surfaces of the female mold member are slightly spaced from the external surfaces of the ceramic shell thereby leaving a gap between the internal surfaces of the female mold member and the external surfaces of the ceramic shell. The molding process also includes the steps of filling the gap with a catalyzed polyester resin matrix mixed with a filler and pigments and permitting the matrix to bond and to cure to the coated external surfaces of the ceramic shell. The molding process further includes the step of removing the female mold member thereby producing a plumbing fixture, such as a toilet, that has an attractive exterior appearance which matches other plumbing fixtures to be used in the same room in both their color texture and their design. -1-
300824
Garasi Louis A.
Hayes Ronald F.
Borden Ladner Gervais Llp
Gruber Systems Inc.
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