Pool filter bag with exaggerated expansion portions for improved flow and debris collection

Abstract

A pool filter bag for use with a pool cleaner comprising an enclosure formed of a flexible panel substantially water-permeable material having a water inlet opening adaptable to be fitted to the outlet of the pool cleaner for receiving water passing therefrom, a divider seam interconnecting portions of the enclosure material at the water inlet opening and extending from the water inlet opening interiorly of the enclosure to define a water flow chamber and a debris collection chamber, wherein the debris collection chamber includes exaggerated lateral expansion portions for improved water flow characteristics and increased volumetric collection of debris passing from the water flow chamber

1 . A pool cleaner filter bag for use with a pool cleaner having a water discharge mast, the filter bag comprising: 
 (i) an enclosure formed of a substantially water-permeable flexible panel material having a water inlet opening adaptable to be fitted to the outlet of the pool cleaner for receiving debris-entrained water passing therefrom, and    (ii) a divider seam interconnecting portions of the panel material to define a water flow chamber and a debris collection chamber in the enclosure, wherein the debris collection chamber includes exaggerated lateral expansion portions for improved water flow characteristics and increased volumetric collection of debris passing from the water flow chamber.    
   
   
       2 . The filter bag of  claim 1  wherein the panel material is formed of a substantially symmetric pattern having a median plane and lateral portions, which comprise laterally extending lower side portions selectively configured to define the enlarged lateral expansion portions of the debris collection chamber.  
   
   
       3 . The filter bag of  claim 2  wherein the panel material is folded about the median plane and is configured to urge the surfaces of the debris collection chamber in the direction of lateral expansion.  
   
   
       4 . The filter bag of  claim 1 , which further comprises stitching means secured on each side of filter bag and extending from the lower peripheral portion of the debris collection chamber  
   
   
       5 . The filter bag of  claim 4  wherein the stitching means extends from the lower peripheral portion of the debris collection chamber to at least the mid-portion of the filter bag.  
   
   
       6 . The filter bag of  claim 4 , wherein the stitching means selectively extends from the lower peripheral portion to the upper portion of the of the filter bag.  
   
   
       7 . The filter bag of  claim 4 , wherein the stitching means secured on the sides of the filter bag further defines the exterior surface contours of the exaggerated side portions of the filter bag.  
   
   
       8 . The filter bag of  claim 7 , wherein the exterior surface contours assume the shape of a ridge.  
   
   
       9 . The filter bag of  claim 1  wherein the porous material is a mesh type material.  
   
   
       10 . The pool filter bag of  claim 1 , which further comprises hook-and-loop-type material releasably engageable secured on a peripheral portion of the filter bag to provide an access opening to the debris collection chamber.  
   
   
       11 . The pool filter bag of  claim 1  which further comprises a collar formed at the water inlet opening of the filter bag and mountable onto the water discharge mast of the pool cleaner.  
   
   
       12 . The pool filter bag of  claim 11 , which further comprises a releasable clamp for securing the collar to the pool cleaner discharge mast.  
   
   
       13 . The filter bag of  claim 1 , wherein the exaggerated side portions forms a pair of wing pockets.