# US 2013/0153239 A1 · Fluid safety valve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153239 A1 - Document ID: US20130153239A1 - Status: Published application - Kind: A1 - Application number: 13/326,061 - Filed: 2011-12-14 - Published: 2013-06-20 - Earliest claimed: 2011-12-14 - Assignees: 2M-TEK, Inc. - Inventors: RICHARD MCINTOSH; TOBY SCOTT BAUDOIN - Web page: https://patentgrep.com/patent/US20130153239A1 ## CPC - E21B 21/106: {Valve arrangements outside the borehole, e.g. kelly valves (valves specifically for maintaining circulation of drilling fluid while connecting or disconnecting tubular joints E21B21/019)} - F16K 17/044: {with more than one spring} - F16K 17/048: {combined with other safety valves, or with pressure control devices} - E21B 2200/02: Down-hole chokes or valves for variably regulating fluid flow - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - 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)} ## Abstract A bi-directional fluid safety valve for preventing spillage when filling tanks, vessels, fill lines, and or hoses for transportation of fluids in pipelines or tubulars with a tubular body with an external body and an internal bore having a fluid flow path from a first end to a second end, the first and second members concentrically disposed and moveable along a longitudinal axis within the tubular body; with means such as springs to longitudinally bias the first member toward the second member and means to longitudinally bias said second member toward said first member. Also provided are embodiments for connection of the tubular body to alternative connection systems. ## Claims ### Claim 1 A fluid safety valve comprising: a tubular body with an external body and an internal bore having a fluid flow path therethrough from a first end to a second end; first and second members concentrically disposed and moveable along a longitudinal axis within said tubular body; a means to longitudinally bias said first member toward said second member; a means to longitudinally bias said second member toward said first member; and where the fluid flow path is closed when said first and second members are in contact, and the fluid flow path is open when said first and second members are separated. ### Claim 2 (depends on 1) The fluid safety valve of claim 1 wherein fluid flowing from said first end to said second end urges both the first member and the second members in the direction of flow. ### Claim 3 (depends on 2) The fluid safety valve of claim 2 wherein as the rate of fluid flowing increases, the first member and the second member continue to move in the direction of flow until the first member encounters a feature on the internal bore of said tubular body halting the movement of the first member. ### Claim 4 (depends on 3) The fluid safety valve of claim 3 wherein as the rate of fluid flowing continues to increase, said second member continues to move in the direction of said flow until said second member encounters a feature mounted within the tubular bore of said tubular body halting the movement of the second member. ### Claim 5 (depends on 4) The fluid safety valve of claim 4 wherein fluid flow is allowed to travel through the fluid flow path in the tubular bore and between the first and second members and permitted to exit said the fluid safety valve at the second end. ### Claim 6 (depends on 5) The fluid safety valve of claim 5 wherein once the fluid flow is ceased or reduced below a predetermined value, said second member returns towards said first end and encounters said first member. ### Claim 7 (depends on 6) The fluid safety valve of claim 6 wherein the velocity of said second member is slowed by said first member. ### Claim 8 (depends on 1) The fluid safety valve of claim 1 wherein fluid flowing from said second end to said first end urges only said first member in the direction of flow. ### Claim 9 (depends on 8) The fluid safety valve of claim 8 wherein as the fluid flow rate increases, said first member continues to move in the direction of flow until said first member encounters a device within the tubular bore of said tubular body halting the movement of the first member. ### Claim 10 (depends on 9) The fluid safety valve of claim 9 wherein fluid flow is allowed to travel through the fluid flow path in the tubular bore and between said first and said second members and permitted to exit the fluid safety valve at the first end. ### Claim 11 (depends on 1) The fluid safety valve of claim 1 wherein flow is permitted in both directions. ### Claim 12 (depends on 11) The fluid safety valve of claim 11 wherein the volume of fluid permitted in one direction may be equal to the volume of fluid permitted in the reverse direction. ### Claim 13 (depends on 1) The fluid safety valve of claim 1 wherein the means to longitudinally bias said first member toward said second member is predetermined. ### Claim 14 (depends on 1) The fluid safety valve of claim 1 wherein the means to longitudinally bias said second member toward said first member is predetermined. ### Claim 15 (depends on 1) The fluid safety valve of claim 1 wherein means to longitudinally bias said first member toward said second member is equal to means to longitudinally bias said second member toward said first member. ### Claim 16 (depends on 1) The fluid safety valve of claim 1 wherein the means to longitudinally bias said first member toward said second member is greater than means to longitudinally bias said second member toward said first member. ### Claim 17 (depends on 1) The fluid safety valve of claim 1 wherein the means to longitudinally bias said first member toward said second member is less than means to longitudinally bias said second member toward said first member. ### Claim 18 (depends on 1) The fluid safety valve of claim 1 wherein the fluid safety valve is to be used as a mud saver valve for the running of tubulars or drill strings into or out of a wellbore. ### Claim 19 A fluid safety valve comprising: a tubular body with an external body and an internal bore having a fluid flow path therethrough from a first end to a second end; first and second members concentrically disposed and moveable along a longitudinal axis within said tubular body; a first spring to longitudinally urge said first member toward said second member; a second spring to longitudinally urge second member toward said first member; and where the fluid flow path is closed when said first and second members are in contact, and the fluid flow path is open when said first and second members are separated. ### Claim 20 A fluid safety valve comprising: a tubular body with an external body and an internal bore having a fluid flow path therethrough from a first end to a second end; first and second members concentrically disposed and moveable along a longitudinal axis within said tubular body; a means to longitudinally bias said first member toward said second member; a means to longitudinally bias said second member toward said first member; and where the fluid flow path is closed when said first and second members are in contact, and the fluid flow path is open when said first and second members are separated; and. wherein the fluid flow path is substantially equal for flow from the first end to the second end or from the second end to the first end. ### Claim 21 A fluid safety valve comprising: a tubular body with an external body and an internal bore having a fluid flow path therethrough from a first end to a second end; first and second members concentrically disposed and moveable along a longitudinal axis within said tubular body; a means to longitudinally bias said first member toward said second member; a means to longitudinally bias said second member toward said first member; and where the fluid flow path is closed when said first and second members are in contact, and the fluid flow path is open when said first and second members are separated; and; a means is provided on the external body of said tubular body for connection with mating fluid transportation system such as hose, tubular, pipe, pipeline, or the like. ### Claim 22 A fluid safety valve comprising: a tubular body with an external body and an internal bore having a fluid flow path therethrough from a first end to a second end; first and second members concentrically disposed and moveable along a longitudinal axis within said tabular body; a means to longitudinally bias said first member toward said second member; a means to longitudinally bias said second member toward said first member; and where the fluid flow path is closed when said first and second members are in contact, and the fluid flow path is open when said first and second members are separated; and; a means is provided proximal both the first end and the second end of said tubular body for connection with mating fluid transportation system such as hose, tubulars, pipe, pipelines, or the like. ### Claim 23 (depends on 22) The fluid safety valve of claim 22 wherein the said means for connection are threads. ### Claim 24 (depends on 22) The fluid safety valve of claim 22 wherein the said means for connection are male couplers such as a cam-lock style coupler. ### Claim 25 (depends on 22) The fluid safety valve of claim 22 wherein the means for connection proximal said first end is a thread and said means for connection proximal said second end is a male coupler. ### Claim 26 (depends on 22) The fluid safety valve of claim 22 wherein the said means for connection proximal said first end is a thread and said second end is provided with a bull-nose. ### Claim 27 (depends on 22) The fluid safety valve of claim 22 wherein the fluid safety valve can be used in-line with a fluid transportation system ### Claim 28 (depends on 22) The fluid safety valve of claim 22 wherein the fluid safety valve is bi-directional and can be functioned in a horizontal or vertical orientation and can be transposed. ### Claim 29 (depends on 22) The fluid safety valve of claim 22 wherein the fluid safety valve can be utilized in any orientation or axial direction other than horizontal or vertical planes.