Universal safety drain and method

摘要

A swimming pool safety drain including a base having a bottom, and having end walls and side walls extending upwardly from the bottom to form an open top enclosure. A cover is removably secured to the enclosure and, when secured to the enclosure forms an inlet slot about the periphery thereof. A plurality of drain outlets are formed in the base for connection to water recirculating systems for the swimming pool and any supplemental water recirculating system. A safety bridge is secured in the enclosure between the side walls and is positioned over the drain outlets to provide hair and limb entrapment protection. A construction cover is provided to temporarily replace the permanent cover during construction and installation of the drain.

主权项

1. A swimming pool safety drain comprising:
(a) a base having a bottom and having end walls and upwardly diverging sidewalls extending therefrom to form an open top enclosure, said sidewalls including at least one upwardly extending positioning keyway therein to receive a mating key; (b) a cover having a periphery, said cover removably secured to said enclosure forming an input slot about said periphery between said cover and said walls to permit water to enter the enclosure from the pool; (c) a drain outlet formed in the bottom of said base for connection to a low pressure side of a swimming pool pump of a pool recirculation system; (d) a safety bridge mounted in said enclosure between said sidewalls and positioned over said drain outlet, said safety bridge extending for a predetermined horizontal length, said predetermined horizontal length creating water flow from any point at said input slot to said drain outlet that is a greater distance than a straight line from said point to said drain outlet; (e) the total area of said input slot greater than the total area of said outlet to maintain a water flow rate at said input lower than water flow rate at said outlet; (f) said safety bridge including a downwardly extending keying surface mating with the respective keyway of said sidewalls and insertable in said enclosure between said sidewalls with said keying surface contacting said keyway to position said safety bridge over said drain outlets; and (g) wherein said upwardly extending positioning keyway is cone shaped and extends outwardly from a sidewall, and wherein said safety bridge keying surface is cone shaped and is insertable and snappable into place in the enclosure between the sidewalls with the keying surface mating with the keyway; whereby said safety bridge may be cemented in place to become a permanent portion of the safety drain.