# US 10,870,976 B2 · Hair straining system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,870,976 B2 - Document ID: US10870976B2 - Status: Granted - Kind: B2 - Application number: 16/361,688 - Filed: 2019-03-22 - Published: 2019-07-18 - Granted: 2020-12-22 - Earliest claimed: 2015-09-16 - Assignees: Juka Innovations Corporation - Applicants: Juka Innovations Corporation - Inventors: Serge Karnegie - Web page: https://patentgrep.com/patent/US10870976B2 ## CPC - E03C 1/264: Separate sieves or similar object-catching inserts - E03C: DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER (not connected to either water-supply main or to waste pipe A47K; devices of the kind used in the ground E03B, E03F); SINKS ## Abstract A straining device has an upper wall, a central tube and a lower wall and is positioned in a drain pipe so as to prevent hair from clogging the drain pipe while providing an aesthetically appealing appearance and allowing for easy cleaning. ## Claims ### Claim 1 A hair straining system comprising: a straining device; the straining device comprising a central tube, an upper wall and a lower wall; the central tube comprising a tube body, a top opening, a bottom opening, a plurality of side openings and a hollow core; the top opening and the bottom opening each axially traversing through the tube body; the top opening and the bottom opening being oppositely located to each other; the plurality of side openings laterally traversing through the tube body; the plurality of side openings being located in between the top opening and the bottom opening; the hollow core being surrounded by the tube body; the hollow core being in communication with the top opening, the bottom opening and the plurality of side openings; the upper wall comprising an upper body; the upper body being connected with the tube body; the upper body being adjacently positioned to the top opening; the lower wall comprising a lower body, a lower opening, a plurality of lower holes, a ridge and at least one protrusion; the lower body being connected with the tube body; the lower body being adjacently positioned to the bottom opening; the tube body being located in between the upper body and the lower body; the lower opening axially traversing through the lower body; the lower opening being in communication with the bottom opening; the plurality of lower holes axially traversing through the lower body; the plurality of lower holes being not in communication with the bottom opening; the plurality of lower holes being peripherally distributed around the tube body; the ridge being perimetrically formed on the lower body; the ridge being tapered towards the upper body; a radial diameter of the lower body being larger than a radial diameter of the tube body; the lower body and the ridge each being made of a resilient material; the at least one protrusion being connected with the lower body; the lower body being located in between the tube body and the at least one protrusion; and the at least one protrusion axially extending away from the lower body. ### Claim 2 (depends on 1) The hair straining system of claim 1 comprising: the top opening and the bottom opening being aligned with each other. ### Claim 3 (depends on 1) The hair straining system of claim 1 comprising: the radial diameter of the lower body being smaller than a radial diameter of the upper body. ### Claim 4 (depends on 1) The hair straining system of claim 1 comprising: the upper wall comprising a plurality of upper openings; and the plurality of upper openings axially traversing through the upper body. ### Claim 5 (depends on 4) The hair straining system of claim 4 comprising: the plurality of upper openings being in communication with the top opening. ### Claim 6 (depends on 1) The hair straining system of claim 1 comprising: the tube body being made of a resilient material. ### Claim 7 (depends on 1) The hair straining system of claim 1 comprising: the upper body being made of a resilient material. ### Claim 8 (depends on 1) The hair straining system of claim 1 comprising: the at least one protrusion being made of a resilient material. ### Claim 9 (depends on 1) The hair straining system of claim 1 comprising: the at least one protrusion being a plurality of protrusions. ### Claim 10 (depends on 9) The hair straining system of claim 9 comprising: the plurality of protrusions being peripherally distributed around the lower opening. ### Claim 11 (depends on 9) The hair straining system of claim 9 comprising: a corresponding protrusion among the plurality of protrusions being located in between the lower opening and a corresponding lower hole among the plurality of lower holes. ### Claim 12 (depends on 1) The hair straining system of claim 1 comprising: the at least one protrusion being a single protrusion. ### Claim 13 (depends on 12) The hair straining system of claim 12 comprising: the single protrusion being peripherally distributed around the lower opening. ### Claim 14 (depends on 12) The hair straining system of claim 12 comprising: the single protrusion being located across the lower opening. ### Claim 15 (depends on 12) The hair straining system of claim 12 comprising: the single protrusion being of ring-shaped. ### Claim 16 (depends on 12) The hair straining system of claim 12 comprising: the single protrusion being of C-shaped. ### Claim 17 (depends on 12) The hair straining system of claim 12 comprising: the single protrusion being of rectangle-shaped. ### Claim 18 (depends on 1) The hair straining system of claim 1 comprising: a drain pipe; and the straining device being configured to be inserted the drain pipe. ### Claim 19 (depends on 18) The hair straining system of claim 18 comprising: the radial diameter of the lower body being substantially the same as an inner radial diameter of the drain pipe; and a radial diameter of the upper body being larger than the inner radial diameter of the drain pipe. ### Claim 20 (depends on 18) The hair straining system of claim 18 comprising: the drain pipe comprising a crossbar; and the at least one protrusion being configured to contact against the crossbar.