Perforated cover assembly
OwnerHenning M. Hendersoninventor
Life of this patent
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Abstract
A perforated cover assembly is made of two oppositely dished shell members releasably interconnected at their peripheries to define a space therebetween. The lower shell member has a plurality of outlet perforations spread over substantially its entire surface and each of which is raised relative to the immediately surrounding surface of the member to prevent liquids flowing out of such perforations in use. The dished lower shell member has a central lowermost region with drainage perforations therethrough. The upper shell member has at least one large perforation and/or a plurality of small ones offset from those in the lower shell member. Preferably the upper shell member has a central funnel inlet for pouring liquids through the cover by way of the drainage perforations in the lower shell member.
Claims14
A perforated cover assembly comprising two perforated shell members releasably held together at their peripheries to define a space therebetween and wherein one of the shell members is adapted to be uppermost in use, and the other is adapted to be lowermost in use, the operatively upper shell member having at least one perforation therethrough, and the operatively lower shell member being dished to form an operatively lower central region, having at least one drainage perforation therethough, and having a plurality of outlet perforations spread over at least a major part of the remaining surface area thereof, the outlet perforations each communicating with the interior of the cover assembly at a position raised with respect to the surrounding inner surface of said operatively lower shell member, the perforations in the two shell members being arranged relative to each other to obstruct the direct passage of liquids and solids through the cover assembly.
Dependencies are inferred from the claim text.