# US 2014/0150894 A1 · Flow controlled switching valve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150894 A1 - Document ID: US20140150894A1 - Status: Published application - Kind: A1 - Application number: 14/177,440 - Filed: 2014-02-11 - Published: 2014-06-05 - Earliest claimed: 2011-02-14 - Assignees: Stoneage, Inc. - Applicants: Stoneage, Inc. - Inventors: Gerald P. Zink - Web page: https://patentgrep.com/patent/US20140150894A1 ## CPC - B08B 9/0497: {provided with additional mechanical cleaning tools} - B05B 1/14: with multiple outlet openings (B05B1/02, B05B1/26 take precedence); with strainers in or outside the outlet opening - B05B 1/1681: {with a selecting mechanism comprising a gate valve, sliding valve or cock and a lift valve} - B05B 1/3006: {the controlling element being actuated by the pressure of the fluid to be sprayed (B05B1/323 takes precedence; single-unit outlet valves actuated by the pressure of the fluid to be sprayed B05B11/0062)} - B05B 3/043: {Rotor nozzles} - B05B 3/06: by jet reaction - B05B 12/04: for sequential operation or multiple outlets - B05B 13/0627: {Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies (B05B13/0645 takes precedence)} - B08B 3/02: Cleaning by the force of jets or sprays - B08B 9/0495: {Nozzles propelled by fluid jets} - F16K 11/04: comprising only lift valves - F16K 31/1635: {for rotating valves} - F16K 31/58: comprising a movable discharge-nozzle - B05B 13/0636: {by means of rotatable spray heads or nozzles} - E03F 9/00: Arrangements or fixed installations {methods or devices} for cleaning {or clearing} sewer pipes, e.g. by flushing (sediment traps, rakes, screens, or the like, arranged in sewer lines E03F5/14; cleaning pipes in general, devices for cleaning pipes B08B9/02 {; gullies provided with flushing means for cleaning or emptying E03F5/0402; devices to remove obstructions in waste-pipes or sinks E03C1/30}) - Y10T 137/4245: Cleaning or steam sterilizing - Y10T 137/4259: With separate material addition - Y10T 137/86485: Line condition change responsive release of valve - Y10T 137/87788: With valve or movable deflector at junction - Y10T 137/87804: Valve or deflector is tubular passageway - Y10T 137/87861: Spring coaxial with valve - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - E03F: SEWERS; CESSPOOLS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A flow path switching valve is disclosed that can be operated remotely simply by turning flow on and off. A mid portion of the body has at least one passage therein leading from a central axial bore to one or more external ports each having a tractor nozzle. The valve outlet connects the axial bore to a cleaning nozzle. A poppet member is received in the central axial bore. In a first position, the poppet member directs fluid flow through the outlet to the cleaning nozzle connected to the outlet. The poppet member, when in a second position, closes the central axial bore through the outlet end of the valve body and permits fluid flow through the tractor nozzles. Selection of the different flow paths is made by simply reducing flow through the valve below a predetermined fluid flow threshold and then increasing the flow rate above the threshold. ## Claims ### Claim 1 In a piping cleaning apparatus having a high pressure fluid cleaning nozzle attached to a flexible hose for passage through a length of piping to a location requiring cleaning, a flow actuated switching valve connected between the hose and the cleaning nozzle, the switching valve comprising: a valve body having an inlet portion configured to be connected to the hose, a mid portion, an outlet portion configured to be connected to the cleaning nozzle, and a central axial bore therethrough, the mid portion having a plurality of rearwardly directed ports connected by passages to the central axial bore; an elongated poppet member slidably disposed in the central axial bore, the poppet member having a rear portion, a spool portion for selectively opening and closing the passages in the mid portion of the valve body and a closed end portion forming a valve disc for closing the outlet portion of the valve body; a bias member between the poppet member and the valve body biasing the poppet member rearward; and a guide member between the rear portion of the poppet member and the valve body for guiding the poppet member between first and second rotary positions when fluid flow through the valve drops below a predetermined flow rate threshold and then returns above the flow rate threshold. ### Claim 2 (depends on 1) The flow actuated switching valve according to claim 1 wherein the valve disc of the poppet member engages a complementary valve seat in the valve body closing the central axial passage when the poppet member is in the second position. ### Claim 3 (depends on 2) The flow actuated switching valve according to claim 2 wherein when fluid flow is again reduced below the predetermined threshold the valve disc of the poppet member disengages the valve seat and opens the central passage through the outlet portion of the valve body. ### Claim 4 (depends on 3) The flow actuated switching valve according to claim 3 wherein when fluid flow is again increased above the predetermined threshold the guide causes the poppet member to again return to the first position. ### Claim 5 (depends on 1) The flow actuated switching valve according to claim 1 wherein the poppet member has an axial bore extending through the rear portion and the spool portion of the poppet member and the spool portion has at least one or more radial arms extending to the mid portion of the valve body. ### Claim 6 (depends on 5) The flow actuated switching valve according to claim 5 wherein the at least one arm includes a radial passage from the axial bore to the end of the arm. ### Claim 7 (depends on 6) The flow actuated switching valve according to claim 6 further comprising a ball disposed in the radial passage for sealing the passage through the mid portion of the valve body when the poppet member is in the first position. ### Claim 8 (depends on 1) The flow actuated switching valve according to claim 1 wherein the poppet member has a plurality of bypass passages leading from the rear end portion around the axial bore in the spool portion. ### Claim 9 (depends on 5) The flow actuated switching valve according to claim 5 wherein the poppet member has a plurality of bypass passages through the rear end portion around the central axial bore in the spool portion. ### Claim 10 (depends on 1) The flow actuated switching valve according to claim 1 wherein the first position blocks fluid flow through the passage through the mid portion of the valve body and permits fluid flow through the valve body from the inlet end, around the spool portion of the poppet member, and out through the valve body outlet end. ### Claim 11 (depends on 1) The flow actuated switching valve according to claim 1 wherein the second position permits fluid flow through the passage in the mid portion of the valve body. ### Claim 12 (depends on 1) The flow actuated switching valve according to claim 1 wherein the guide member causes the poppet member to rotate when moving between the first and second positions. ### Claim 13 (depends on 1) The flow actuated switching valve according to claim 1 further comprising the poppet member being held at a third position when flow is reduce below the threshold. ### Claim 14 (depends on 1) The flow actuated switching valve according to claim 1 wherein the guide member includes a stationary pin projecting radially inward from an inside surface of the valve body into a complementary groove formed in the rear end portion of the poppet member. ### Claim 15 (depends on 14) The flow actuated switching valve according to claim 14 further comprising at least two spaced stationary pins projecting into complementary grooves formed in the rear end portion of the poppet. ### Claim 16 (depends on 4) The flow actuated switching valve according to claim 4 wherein the guide member includes two or more spaced stationary pins projecting radially inward from an inside surface of the valve body into a complementary groove formed in the rear end portion of the poppet member. ### Claim 17 (depends on 16) The flow actuated switching valve according to claim 16 wherein the guide member includes four equally spaced stationary pins and the complementary groove causes the poppet body to rotate about 45 degrees between each of the first and second positions. ### Claim 18 In a piping cleaning apparatus having a high pressure fluid cleaning nozzle attached to a flexible hose for passage through a length of piping to a location requiring cleaning, a flow actuated switching valve connected between the hose and the cleaning nozzle, the switching valve comprising: a hollow valve body having an inlet end, an outlet end, a mid portion, and a central axial bore through the inlet end, the mid portion, and the outlet end, the mid portion having at least one passage therein leading from the central axial bore through the valve body to at least one external port; a poppet member received in the central axial bore, the poppet member having an open tubular rear end portion, a spool portion and a closed end valve disc portion, the valve disc portion selectively closing the central axial bore through the outlet end of the valve body, the poppet member having an axial bore extending through the rear portion and the spool portion of the poppet member, the spool portion having at least one or more radial arms extending to the mid portion of the valve body; a biasing member between the valve body and the poppet member biasing the poppet member toward the inlet end of the valve body; and a guide member between the rear end portion of the poppet member and the valve body for guiding the poppet member between first and second rotary positions when fluid flow through the valve drops below a predetermined flow rate threshold and then returns above the flow rate threshold. ### Claim 19 (depends on 18) The flow actuated valve according to claim 18 wherein the valve disc portion of the poppet member engages a complementary valve seat in the valve body closing the central axial passage when the poppet member is in the second position. ### Claim 20 (depends on 19) The flow actuated valve according to claim 19 wherein when fluid flow is again reduced below the predetermined threshold the valve disc portion of the poppet member disengages the valve seat and opens the central passage through the outlet end of the valve body.