초록 ▼

A foreign matter trap for use in a drain such as a shower or sink drain in which water flows downwardly through a drain pipe, the trap having an element for removably positioning in the drain pipe including a downwardly extending longitudinal member, a plurality of layers of foreign matter catching

A foreign matter trap for use in a drain such as a shower or sink drain in which water flows downwardly through a drain pipe, the trap having an element for removably positioning in the drain pipe including a downwardly extending longitudinal member, a plurality of layers of foreign matter catching members extending generally radially from the longitudinal member, each layer being formed of a plurality of spaced apart spicule members, the spicule members of each layer covering less than a complete cross-sectional circumferential area leaving a portion free for the flow of water therepast, the layers being arranged so that the spicule members in adjacent upper layers extend over and above the free cross-sectional areas of the next lower layer so that water may continue to flow through the drain even when the spicule members of any layer are completely closed by trapped foreign matter.

대표청구항 ▼

A foreign matter trap for use in a drain, such as a shower or sink drain, in which water flows downwardly through a drain pipe, comprising: a trap element removably positionable in a drain pipe, the trap element having a downwardly extending substantially straight longitudinal member; a plurality of

A foreign matter trap for use in a drain, such as a shower or sink drain, in which water flows downwardly through a drain pipe, comprising: a trap element removably positionable in a drain pipe, the trap element having a downwardly extending substantially straight longitudinal member; a plurality of discrete, spaced apart, parallel horizontal layers of foreign matter catching members extending generally radially from said longitudinal member, each horizontal layer being in a plane perpendicular to said longitudinal member and formed of a plurality of closely spaced apart spicule members, the outer ends of which are in engagement with or in close proximity to the internal circumferential surface of a drain pipe for which the trap is dimensioned, each horizontal layer having at least one discrete area having many closely spaced spicule members and at least one discrete area devoid of spicule members whereby the spicule members of each layer cover less that a complete cross-sectional horizontal circumferential area leaving a portion of at least about 90°of the drain cross-sectional area free of spicule members, the layers being arranged such that the spicule members in adjacent upper layers extend over and above the cross-sectional area of the next lower layer free of spicule members whereby water may continue to flow through the drain even when the spicule members of each layer are completely closed by trapped foreign matter.