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An improved faucet drain assembly for preventing damage to a faucet due to freezing of residual water in the faucet upon exposure of the faucet to low temperature conditions. The faucet drain assembly comprises a faucet extension member supported by the faucet, the faucet extension member having a d

An improved faucet drain assembly for preventing damage to a faucet due to freezing of residual water in the faucet upon exposure of the faucet to low temperature conditions. The faucet drain assembly comprises a faucet extension member supported by the faucet, the faucet extension member having a drain bore extending therethrough which is in fluid communication with the faucet, and a fluid valving assembly disposed in the drain bore and responsive to the flow pressure through the faucet. When the flow pressure in the faucet drops below a predetermined value, that is, the flow pressure of water through the faucet approaches the value where substantially no water pressure is present, the fluid valving assembly opens the drain bore so that the residual water in the faucet can be removed therethrough; whereas when the flow pressure in the faucet is above the predetermined value, that is, there is a stream of the water flowing through the faucet, the fluid valving assembly seals the drain bore to prevent discharge of water therethrough.

대표청구항 ▼

A faucet drain apparatus for protecting a faucet from low temperature effects, the faucet drain apparatus comprising: a faucet extension member supported by the faucet, the faucet extension member comprising a body portion having a fluid flow bore extending therethrough and a drain bore, the drain b

A faucet drain apparatus for protecting a faucet from low temperature effects, the faucet drain apparatus comprising: a faucet extension member supported by the faucet, the faucet extension member comprising a body portion having a fluid flow bore extending therethrough and a drain bore, the drain bore communicating with the flow bore so that residual water present in the body portion can be drained from the body portion through the drain bore; and fluid valving means disposed in the drain bore and responsive to flow pressure through the fluid flow bore for sealing the drain bore in the presence of a predetermined flow pressure of fluid in the fluid flow bore and for opening the drain bore when the flow pressure of the fluid in the fluid flow bore drops below the predetermined value, the fluid valving means comprising: a ball closure member disposed within the drain bore; a valve seat supported in close proximity to a discharge end of the drain bore; and a spring member disposed within the discharge end of the drain bore for biasing the ball closure member in seating engagement with the valve seat so as to seal the drain bore when the flow pressure of the fluid in the fluid flow bore is above the predetermined value, the spring member biasing the ball closure member away from the valve seat to open the drain bore when the flow pressure of the fluid in the fluid flow bore is below the predetermined value; ball retainer means for retaining the ball closure member within the drain bore when the spring member biases the ball closure member away from the valve seat, the ball retainer member being disposed within the drain bore so as to be in close proximity to an inlet end of the drain bore, and the ball retainer member permitting fluid flow therethrough for passage around the ball closure member when the ball closure member is biased away from the valve seat; and filter means disposed within the inlet end of the drain bore of the faucet extension member for removing particulate materials from fluid passing through the drain bore and for preventing the particulate materials from entering the drain bore, the filter means disposed a distance upstream of the ball retainer means so as to prevent contact of the ball closure member with the filter means when the ball closure member is biased away from the valve seat.