Plate-shaped structure, a reservoir and method
AssigneeDebora De Fatima Auria Aranda
InventorPetrus Mattheus Maria Hoff
Life of this patent
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Abstract
A plate-shaped structure designed for covering a reservoir, the plate-shaped structure having a generally flat surface and a flange at the periphery of the generally flat upper surface. The flange has a plurality of openings designed to receive a protrusion on an exterior sidewall of the reservoir, thereby covering the reservoir.
Claims10
A plate-shaped structure designed for covering a reservoir, said plate-shaped structure manufactured from biodegradable material selected from cellulose, paper material, or combinations thereof, using a pulp molding process, and comprising:
- a generally flat upper surface having a periphery, wherein the entire periphery of the generally flat upper surface exists in a plane;
- an inverted U-profile forming a flange at the periphery of the generally flat upper surface, comprising a first edge portion extending upwards from the generally flat upper surface of the plate-shaped structure, a generally flat top portion adjacent to the first edge portion, and a second edge portion extending downwards from the generally flat top portion:
- wherein the inverted U-profile comprises a plurality of openings designed to receive a protrusion on an exterior sidewall of the reservoir, the openings extending partly in the generally flat top portion and extending partly in the downwardly extending second edge portion,
- wherein the second edge portion contains a plurality of detents shaped to releasably hold the protrusion on the exterior sidewall of the reservoir, each detent formed by a section of the second edge portion folded inwards in the plane towards first edge portion of the inverted U-profile, wherein each detent does not extend beyond or below an upper edge of that detents respective opening.
A plate-shaped structure designed for covering a reservoir, said plate-shaped structure manufactured from biodegradable material selected from cellulose, paper material, or combinations thereof, using a pulp molding process, and comprising:
- a generally flat upper surface having a periphery, wherein the entire periphery of the generally flat upper surface exists in a plane;
- a flange formed at the periphery of the generally flat upper surface, the flange comprising a plurality of openings designed to receive a protrusion on an exterior sidewall of the reservoir, the openings extending partly in a generally flat top portion of the flange and extending partly in a downwardly extending portion of the flange,
- wherein the downwardly extending portion of the flange contains a plurality of detents shaped to releasably hold the protrusion on the exterior sidewall of the reservoir,
- wherein the detents are formed by inwardly folded sections of the downwardly extending portion of the flange, wherein the inwardly folded sections extend in the plane, wherein each detent does not extend beyond or below an upper edge of that detents respective opening
- wherein the flange has a flange angle of at least about 5 degrees to a reference line perpendicular to the periphery of the generally flat upper surface.
Dependencies are inferred from the claim text.