LIGATURE RESISTANT DRAIN
A drain may include ligature resistant features to inhibit anchoring a ligature or string to or around the installed drain. A drain can include an inlet or upper opening, an outlet or lower opening, and a channel fluidly connecting the upper opening to the lower opening. The channel may be configured to prevent linear flow of fluid from the upper opening to the lower opening and to inhibit anchoring a ligature about any opening or portion of the drain.
1 . A drain comprising:
an outer body having a central opening and an interior wall extending around the central opening; and
an inner body coupled to the outer body and having a central surface positioned within the central opening of the outer body, the inner body having an exterior wall extending around a perimeter of the central surface, the exterior wall spaced radially inward from the interior wall of the outer body to form an annular gap therebetween, the inner body further including a lower wall spaced apart from the central surface and extending radially outward from the exterior wall of the inner body.
2 . The drain of claim 1 , wherein the lower wall extends radially outward beyond the interior wall of the outer body.
3 . The drain of claim 1 , wherein the inner body is coupled to the outer body by a connection extending between the lower wall and the outer body.
4 . The drain of claim 1 , wherein the annular gap forms a first opening between an upper surface of the outer body and the central surface of the inner body and forms a second opening between a lower portion of the outer body and the lower wall of the inner body.
5 . The drain of claim 4 , wherein the first opening has a width that is a first distance, wherein an upper end of the second opening is vertically offset from the first opening by a second distance, and wherein the second distance is greater than the first distance.
6 . The drain of claim 5 , wherein the second distance is approximately 0.4 inches or greater.
7 . The drain of claim 5 , wherein the second distance is at least 1.5 times the first distance.
8 . The drain of claim 1 , wherein the exterior wall of the inner body extends outwardly from the central surface to the lower wall.
9 . The drain of claim 1 , wherein a radially outer end of the lower wall is positioned radially outward of the interior wall of the outer body.
10 . The drain of claim 1 , wherein the exterior wall of the inner body has a campanulate shape.
11 . A drain comprising:
an upper portion having an upper opening, the upper portion having a center axis;
a lower portion coupled to the upper portion and having a lower opening; and
a channel fluidly connecting the upper opening to the lower opening, the channel having an upper channel portion directing fluid flowing through the upper opening in a substantially radial direction toward a lower channel portion of the channel, the lower channel portion being radially offset from the upper opening.
12 . The drain of claim 11 , wherein the lower channel portion directs fluid toward the lower opening in a direction that is substantially parallel to the center axis.
13 . The drain of claim 11 , wherein the upper opening is one of a plurality of upper openings, the lower opening is one of a plurality of lower openings, and the channel is one of a plurality of channels fluidly connecting one of the upper openings with one of the lower openings.
14 . The drain of claim 13 , wherein the plurality of upper openings are spaced circumferentially from one another about the center axis.
15 . The drain of claim 11 , wherein the lower channel portion is offset radially inward relative to the upper opening.
16 . The drain of claim 11 , wherein the upper portion includes an overhanging portion positioned vertically above the lower channel portion.
17 . The drain of claim 11 , wherein a ledge extends perpendicular to the center axis from a wall of the lower portion and proximate the lower opening.
18 . A drain comprising:
an upper portion having an upper opening;
a lower portion having a lower opening; and
a channel fluidly connecting the upper opening to the lower opening, the channel having an offset portion such that at least a portion of the channel has a serpentine shape preventing fluid flowing between the upper opening and the lower opening from moving along a linear path.
19 . The drain of claim 18 , wherein the upper opening is radially offset from the lower opening.
20 . The drain of claim 18 , wherein the upper opening has a width that is a first distance, wherein an upper end of the lower opening is vertically offset from the upper opening by a second distance, and wherein the second distance is greater than the first distance.