Abstract: An improved open topped vessel (10) for receiving and containing a liquid, substantially made from plastics, comprises a housing having an upper wall (11) defining a catchment area with a well (17) at its lowermost point; a sump (19) remote from the well (17); and a pipe (18) connecting the well (17) to the sump (19). The vessel (10) is constructed so that thermal expression of the upper wall (11) and causes controlled downward movement of the well (11) without resulting in low point liquid traps.
Type:
Grant
Filed:
November 17, 1998
Date of Patent:
September 12, 2000
Assignee:
Retriever Products Pty. Ltd.
Inventors:
Max Dickison, Anthony Kearney, David Pullman