# US 10,865,893 B2 · Rotatable value spool for a manifold > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,893 B2 - Document ID: US10865893B2 - Status: Granted - Kind: B2 - Application number: 16/075,910 - Filed: 2017-01-20 - Published: 2019-02-14 - Granted: 2020-12-15 - Earliest claimed: 2016-02-11 - Assignees: 3M Innovative Properties Company - Applicants: 3M Innovative Properties Company - Inventors: Nathan E. Marks; Jeremy A. Schmoll - Web page: https://patentgrep.com/patent/US10865893B2 ## CPC - F16K 11/076: with sealing faces shaped as surfaces of solids of revolution - B01D 35/1573: {Flow control valves} - F16K 3/26: with fluid passages in the valve member - F16K 11/085: with cylindrical plug - F16K 27/065: {with cylindrical plugs} - B01D 2201/302: having inlet or outlet ports - B01D 2201/4015: Bayonet connecting means - B01D 2201/4061: between a cartridge and a filter head or manifold - 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)} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A rotatable valve spool for a spool valve manifold. The rotatable valve spool having a longitudinal axis along its length, a cylindrical body, a first end, and a second end. A first angled seal, a second angled seal, an optional central seal, and an outer seal each disposed on the cylindrical body with the optional central seal disposed between the first and second angled seals and the outer seal disposed between the second angled seal and the second end. A first flow port in the cylindrical body disposed outboard of the first angled seal between the first angled seal and the first end or disposed in the first end, and a second flow port disposed outboard of the second angled seal between the second angled seal and the outer seal. ## Claims ### Claim 1 A rotatable valve spool for a spool valve manifold comprising: a longitudinal axis along the length of the rotatable valve spool, a cylindrical body, a first end, and a second end; a first angled seal, a second angled seal, and an outer seal each disposed on the cylindrical body with the outer seal disposed between the second angled seal and the second end; a first flow port in the cylindrical body disposed between the first angled seal and the first end or disposed in the first end; wherein the first flow port comprises a longitudinal bore through the cylindrical body; a second flow port disposed between the second angled seal and the outer seal; and wherein the second flow port comprises a connecting port through an outer surface of the cylindrical body that allows a fluid to flow through the connecting port to a stem engagement bore in the second end. ### Claim 2 (depends on 1) The rotatable valve spool of claim 1 wherein the first flow port comprises a connecting port through an outer surface of the cylindrical body and the longitudinal bore through the cylindrical body. ### Claim 3 (depends on 1) The rotatable valve spool of claim 1 wherein the second end comprises a cylindrical ring having a ring diameter greater than a body diameter of the cylindrical body. ### Claim 4 (depends on 1) The rotatable valve spool of claim 1, wherein the first end comprises a rotation limit boss. ### Claim 5 (depends on 4) The rotatable valve spool of claim 4 wherein the rotation limit boss comprises a circular wedge having a first angular stop, a second angular stop, and a recessed section between the first and second angular stops. ### Claim 6 (depends on 1) The rotatable valve spool of claim 1 wherein the stem engagement bore comprises a stem engagement member. ### Claim 7 (depends on 6) The rotatable valve spool of claim 6 wherein the stem engagement member comprises a tapered cylindrical bushing having a length of d1 with a hollow cylinder extending from an upper surface forming an annulus; extending laterally on opposing sides of the annulus are two wedge shaped wings that each resemble a keystone for an archway; the wedge shaped wings extend a depth of d2 from the upper surface of the tapered cylindrical bushing and the annulus extends a distance of d3 from an upper surface of the wedge shaped wings. ### Claim 8 (depends on 1) The rotatable valve spool of claim 1 wherein the first angled seal and the second angled seal are parallel to each other. ### Claim 9 (depends on 1) The rotatable valve spool of claim 1 wherein a central seal is disposed between the first and second angled seals, and the first angled seal and the second angle seal are both closer to the central seal on a first side of the cylindrical body and are both farther away from the central seal on an opposing second side of the cylindrical body. ### Claim 10 (depends on 1) The rotatable valve spool of claim 1 wherein the first angled seal and the second angle seal form an included angle and the included angle is between 20 degrees to 80 degrees. ### Claim 11 (depends on 1) The rotatable valve spool of claim 1 wherein a central seal is disposed between the first and second angled seals, and the central seal is effective to prevent fluid bypass from an inlet port to an outlet port on a spool valve manifold containing the rotatable valve spool when the rotatable valve spool is in a closed position. ### Claim 12 (depends on 1) The rotatable valve spool of claim 1 wherein a central seal is not present and fluid can pass from an inlet port to an outlet port on a spool valve manifold containing the rotatable valve spool when the rotatable valve spool is in a closed position. ### Claim 13 (depends on 1) The rotatable valve spool of claim 1 further comprising a housing and a support flange with the rotatable spool valve inserted into the housing above the support flange. ### Claim 14 (depends on 13) The rotatable valve spool of claim 13 wherein the second end comprises a cylindrical ring having a ring diameter greater than a body diameter of the cylindrical body. ### Claim 15 (depends on 13) The rotatable valve spool of claim 13 wherein the first end comprises a rotation limit boss and the rotation limit boss comprises a circular wedge having a first angular stop, a second angular stop, and a recessed section between the first and second angular stops. ### Claim 16 (depends on 13) The rotatable valve spool of claim 13 wherein the housing comprises an inlet port and an outlet port that are vertically stacked with their centers located in the same plane, the centers separated by a distance, and the inlet port and the outlet port are located on the same side of the housing. ### Claim 17 (depends on 13) The rotatable valve spool of claim 13 wherein the housing comprises an inlet port and an outlet port and the inlet port and the outlet port are located on opposite sides of the housing. ### Claim 18 (depends on 1) The rotatable valve spool of claim 1 wherein the stem engagement bore comprises a stem engagement member. ### Claim 19 (depends on 18) The rotatable valve spool of claim 18 wherein the stem engagement member comprises a tapered cylindrical bushing having a length of d1 with a hollow cylinder extending from an upper surface forming an annulus; extending laterally on opposing sides of the annulus are two wedge shaped wings that each resemble a keystone for an archway; the wedge shaped wings extend a depth of d2 from the upper surface of the tapered cylindrical bushing and the annulus extends a distance of d3 from an upper surface of the wedge shaped wings.