US2009265846A1PendingUtilityA1

Pool cover

59
Individually held — no corporate assignee on recordPriority: Apr 24, 2008Filed: Apr 24, 2009Published: Oct 29, 2009
Est. expiryApr 24, 2028(~1.7 yrs left)· nominal 20-yr term from priority
Inventors:Gordon StuartHubert Gravendyk
E04H 4/08
59
PatentIndex Score
0
Cited by
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References
0
Claims

Abstract

A pool cover element, the pool cover element having a substantially convex or sloping upper surface, the pool cover element being provided with means for preventing liquid from being retained on the upper surface, and wherein at least a portion of the upper surface projects above the surface of a body of water when the pool cover element is placed therein.

Claims

exact text as granted — not AI-modified
1 . A pool cover element, the pool cover element having a substantially convex or sloping upper surface, the pool cover element being provided with means for preventing liquid from being retained on the upper surface, and wherein at least a portion of the upper surface projects above the surface of a body of water when the pool cover element is placed therein. 
   
   
       2 . A pool cover element according to  claim 1  wherein the pool cover element is constructed as a one piece construction. 
   
   
       3 . A pool cover element according to  claim 1  wherein the pool cover element is constructed from a substantially rigid material. 
   
   
       4 . A pool cover element according to  claim 3  wherein the substantially rigid material comprises a plastic having a density less than about 1000 kg/m 3 . 
   
   
       5 . A pool cover element according to  claim 4  wherein the plastic is PVC, foamed PVC, polyethylene or polypropylene. 
   
   
       6 . A pool cover element according to  claim 1  wherein the means for preventing liquid from being retained on the upper surface comprises one or more ribs or grooves in the upper surface of the pool cover element. 
   
   
       7 . A pool cover element according to  claim 1  wherein the upper surface comprises two or more sections of different height adapted to prevent liquid from being retained on the upper surface of the pool cover element. 
   
   
       8 . A pool cover element according to  claim 1  wherein the one or more ribs or grooves extend radially from the centre of the upper surface towards an outer edge of the pool cover element. 
   
   
       9 . A pool cover element according to  claim 1  wherein, when a plurality of pool cover elements are placed on the surface of a body of water, the pool cover elements abut one another so as to form a substantially continuous cover. 
   
   
       10 . A pool cover element according to  claim 1  wherein the pool cover element is circular, square, rectangular, triangular, pentagonal, hexagonal or octagonal in plan view. 
   
   
       11 . A pool cover element according to  claim 1  wherein the pool cover element is of a single layer construction. 
   
   
       12 . A pool cover element according to  claim 1  wherein a volume of air is trapped under the pool cover element when the pool cover element is placed on the surface of a body of water. 
   
   
       13 . A pool cover element  claim 1  wherein the pool cover element further comprises one or more lip portions at or adjacent an outer edge of the pool cover element. 
   
   
       14 . A pool cover element according to  claim 13  wherein the one or more lip portions are located at the lowermost point of the outer edge of the pool cover element. 
   
   
       15 . A pool cover element according to  claim 13  wherein the pool cover element comprises a single, continuous lip portion extending along the entire length of the outer edge. 
   
   
       16 . A pool cover element according to  claim 1  wherein the pool cover element is stackable. 
   
   
       17 . A pool cover element according to  claim 16  wherein the pool cover element is provided with means for assisting in separating the pool cover element from a stack of pool cover elements. 
   
   
       18 . A pool cover element according to  claim 17  wherein the means for assisting in separating the pool cover element from a stack of pool cover elements comprises one or more keys, tabs, lands, lips, projections, upstands, notches, recesses or grooves. 
   
   
       19 . A pool cover comprising a plurality of pool cover elements according to  claim 1 . 
   
   
       20 . (canceled)

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