Patent ID: 8221620
Filing Date: 2012-07-17
Classification: E04H

Abstract:
1. A debris collection bag for attachment over an open discharge port of a self-contained swimming pool vacuum head, said debris collection bag comprising: a main body formed of a water permeable material and including an upper portion having a closed top end and closed sides surrounding an interior collection chamber and a lower portion including an open end communicating with said interior collection chamber; a sleeve attached to said main body of said bag and surrounding said main body between said upper portion and said lower portion; a cinch cord extending through said sleeve and having a first end segment and an opposite second end segment extending exteriorly of the sleeve; a locking device structured and disposed for releasably securing said first and second end segments of said cinch cord relative to one another, wherein at least one of said first and second end segments is adapted to be released from said locking device and pulled away from said sleeve to cause said sleeve to close around the vacuum head and said locking device being structured and disposed to releasably lock said first and second opposite end segments of said cinch cord in fixed position to hold said bag on said vacuum head; said lower portion of said body of said bag tapering inwardly from said sleeve to said open end so that a transverse dimension of said open end is less than a transverse dimension measured across said interior collection chamber; and said lower portion being structured and disposed to be tucked upwardly into said interior collection chamber of said upper portion of said main body to define a frustoconical intake nozzle, and said frustoconical intake nozzle being structured and disposed for increasing thrust force of a forced flow of water exiting said discharge port of said vacuum head and entering said interior collection chamber, and said frustoconical intake nozzle of said bag being further structured and disposed for promoting circulation of said forced flow of water at an upper portion of said interior collection chamber and creating a low pressure area within said interior collection chamber surrounding said frustoconical intake nozzle for collecting debris between said frustoconical intake nozzle and said surrounding sides of said upper portion of said main body of said bag.