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US 5,685,031 AGranted
Three-piece portable spa cover
AssigneeWatkins Manufacturing Corporation
InventorsJeffrey King Watkins, Walter Richard Cumiskey
Life of this patent
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AssigneeWatkins Manufacturing Corporation
InventorsJeffrey King Watkins, Walter Richard Cumiskey
Estimating the term…
A portable spa cover having three rigidly molded, interlocking pieces including two mirror image end pieces and a center piece and designed to conform with the contour of the rim of a spa. Each cover piece has an undersurface and outer surface with a plurality of radial support ribs being formed in the undersurface to provide strength and rigidity. Elongated, tapered male and female hinge members are integrally molded as part of the respective end pieces and center piece and permit the cover pieces to be engaged and disengaged from one another when at an angle with respect to one another, while remaining firmly locked together when the pieces all lie horizontally. The horizontal engagement is further facilitated by resilient fingers which extend out from the male projection at intervals along the cover edge and provide a resiliently biased interlocking mechanism.
Cover apparatus comprising:
Cover apparatus comprising first, second, and third cover sections, the first and second cover sections adapted to at least abut against one another along a first pair of corresponding edges and the second and third sections adapted to at least abut each other along a second pair of corresponding edges, to form a cover having a periphery adapted to seat on a rim of an apparatus to be covered, each section being formed of molded plastic and having an inner skin substantially spaced apart from an outer skin with the exception of a plurality of intermediate zones where the inner skin is formed with impressions which terminate in contact with the outer skin, and wherein the impressions comprise elongated ribs, the inner and outer skins contacting one another at at least one interval along each rib.
Cover apparatus comprising first, second, and third generally rectangular cover sections, each removable from a cover receiving apparatus, the first and second sections having respective generally linear first and second inner edges, the third section comprising a middle section having first and second outer edges, the first inner edge and first outer edge including means for releasably interlocking said first section with said middle section, and the second inner edge and second outer edge including means for releasably interlocking said second section with said middle section to form a generally rectangular cover having a periphery adapted to seat on a rim of the cover receiving apparatus and to be removed therefrom, each section being formed of molded plastic and having an inner skin substantially spaced apart from an outer skin.
The spa structure comprising:
Cover apparatus comprising:
Cover apparatus comprising:
Dependencies are inferred from the claim text.