# US 11,585,459 B2 · Self sealing jetting valve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,585,459 B2 - Document ID: US11585459B2 - Status: Granted - Kind: B2 - Application number: 17/156,750 - Filed: 2021-01-25 - Published: 2021-05-13 - Granted: 2023-02-21 - Earliest claimed: 2017-11-27 - Assignees: Zentech, Inc. - Applicants: Zentech, Inc. - Inventors: Kevin Alan McDoneld; William David Reynolds, Jr.; Ramesh Maini - Web page: https://patentgrep.com/patent/US11585459B2 ## CPC - B05B 1/3073: {the controlling element being a deflector acting as a valve in co-operation with the outlet orifice} - F16K 31/1221: {one side of the piston being spring-loaded} - B05B 1/323: {the valve member being actuated by the pressure of the fluid to be sprayed (single unit outlet valves actuated by the pressure of the fluid to be sprayed B05B11/0062)} - E02B 17/021: {with relative movement between supporting construction and platform} - E21B 7/124: with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors - F16K 1/38: of conical shape - F16K 15/026: {the valve member being a movable body around which the medium flows when the valve is open} - F16K 31/04: using a motor - F16K 41/04: with at least one ring of rubber or like material between spindle and housing - E02B 2017/006: {with lattice style supporting legs} - E02B 2017/0082: {Spudcans, skirts or extended feet} - 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)} - E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F) - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract An apparatus for use in marine platform jacking is disclosed herein. In one aspect, a jetting valve includes a valve body with a piston assembly disposed therein. The piston assembly is selectively operated to open and close the valve. A biasing member is coupled to the piston assembly. The piston assembly includes a first piston and a second piston. The dual pistons, in cooperation with the biasing member, allow the valve to self-seal thereby preventing entry of a fluid which is external to the valve. ## Claims ### Claim 1 A jetting valve for a seabed operation, comprising: a valve body including a port, a bottom surface, and an inner chamber; and a piston assembly moveable from a retracted position to an extended position including: a shaft moveably disposed in the port, the shaft including a first end and a second end; a first piston disposed in the inner chamber and disposed between the first end and the second end of the shaft; and a second piston disposed at the second end of the shaft, wherein the second piston blocks the port in the retracted position and unblock the port in the extended position, and wherein the second piston and second end of the shaft protrude from the bottom surface of the valve body in the extended position. ### Claim 2 (depends on 1) The jetting valve of claim 1, wherein the valve body includes a housing and a cap. ### Claim 3 (depends on 1) The jetting valve of claim 1, further comprising: a shaft guide including at least one aperture disposed in the valve body, wherein the shaft is moveably disposed in the shaft guide. ### Claim 4 (depends on 1) The jetting valve of claim 1, further comprising: an inner housing disposed in the inner chamber and dividing the inner chamber into a first volume and a second volume, wherein the inner housing includes: at least one aperture establishing fluid communication between the first volume and the second volume when the first piston is in the extended position; and wherein the first piston blocks fluid communication between the first volume and the second volume through the at least one aperture in the retracted position. ### Claim 5 (depends on 4) The jetting valve of claim 4, further comprising a biasing member disposed in the inner housing, wherein the biasing member is configured to bias the piston assembly in the retracted position. ### Claim 6 (depends on 4) The jetting valve of claim 4, wherein the first piston is engageable with the inner housing in the retracted position. ### Claim 7 (depends on 4) The jetting valve of claim 4, wherein the inner housing includes a recess configured to receive the first end of the shaft. ### Claim 8 (depends on 7) The jetting valve of claim 7, wherein a biasing member is disposed in the recess around the shaft, wherein the biasing member is configured to bias the piston assembly in the retracted position. ### Claim 9 A jetting valve for a seabed operation, comprising: a valve body including a port, a first volume, and a second volume; and a piston assembly disposed in the valve body and moveable between a retracted position and an extended position, wherein fluid communication is allowed between the first volume and the second volume and fluid communication is allowed between the second volume and an exterior of the valve body when the piston assembly is in the extended position, wherein the piston assembly includes: a first piston configured to isolate the first volume from the second volume in the retracted position; and a second piston configured to seat against the port in the retracted position to isolate the second volume from the exterior of the valve body. ### Claim 10 (depends on 9) The jetting valve of claim 9, wherein the second piston is configured to protrude from a bottom surface of the valve body in the extended position. ### Claim 11 (depends on 9) The jetting valve of claim 9, further comprising: a shaft guide including at least one aperture disposed in the valve body, wherein a shaft of the piston assembly is moveably disposed in the shaft guide. ### Claim 12 (depends on 9) The jetting valve of claim 9, further comprising: an inner housing disposed in the valve body, the inner housing including at least one aperture that allows the fluid communication between the first volume and the second volume when the piston assembly is in the extended position, wherein the first piston is configured to block the at least one aperture in the retracted position to isolate the first volume from the second volume. ### Claim 13 (depends on 12) The jetting valve of claim 12, further comprising a biasing member disposed in the inner housing, wherein the biasing member is configured to bias the piston assembly in the retracted position. ### Claim 14 (depends on 12) The jetting valve of claim 12, wherein the first piston is engageable with the inner housing in the retracted position. ### Claim 15 (depends on 9) The jetting valve of claim 9, wherein the jetting valve is configured to be housed in a spud can. ### Claim 16 An offshore rig operation, comprising: increasing fluid pressure in a jetting valve coupled to a spud can to extend a piston assembly into a seabed to open a port; flowing fluid through the port to dislodge a soil of a seabed from the spud can; and lifting the spud can from the seabed. ### Claim 17 (depends on 16) The offshore rig operation of claim 16, further comprising: installing the jetting valve in the spud can. ### Claim 18 (depends on 16) The offshore rig operation of claim 16, further comprising replacing a valve cartridge of the jetting valve after lifting the spud can from the seabed, wherein the valve cartridge includes the piston assembly. ### Claim 19 (depends on 16) The offshore rig operation of claim 16, further comprising: pumping seawater to the jetting valve to increase the fluid pressure in the jetting valve to extend the piston assembly to open the port.