US Patent 8375497 Leaf collection traps for pool vacuums

A multiple planar surface baffle provides enhanced water flow and leaf capture benefits for pool/spa vacuum heads. A first planar surface is a support plate for attachment to a vacuum head at open segment locations between adjacent support wheels along both front and back edges of the vacuum head. The second and third planar surfaces are displaced at angles relative to one-another, and relative to the support plate. The second and third planar surfaces cooperate when attached to the vacuum head to provide a larger capture opening, to minimize displacement flow of water over the vacuum head, and to provide a water profile that induces enhanced downward water currents to better entrain leaves and other low density debris.