# US 10,760,725 B2 · System and method for reducing environmental impact caused by hydraulic oil leaking from a tractor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,760,725 B2 - Document ID: US10760725B2 - Status: Granted - Kind: B2 - Application number: 15/908,280 - Filed: 2018-02-28 - Published: 2018-09-06 - Granted: 2020-09-01 - Earliest claimed: 2017-03-02 - Applicants: Scott Grove - Inventors: Scott Grove - Web page: https://patentgrep.com/patent/US10760725B2 ## CPC - F16L 37/413: the lift valve being of the sleeve type, i.e. a sleeve being telescoped over an inner cylindrical wall - B23P 19/04: for assembling or disassembling parts - F15B 13/01: Locking-valves or other detent {i.e. load-holding} devices - F15B 20/005: {Leakage; Spillage; Hose burst} - F16L 37/28: with fluid cut-off means - E02F 9/226: {Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating} - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q) - F15B: SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR - E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00) ## Abstract A method and system for reducing leakage of hydraulic oil from a hydraulic outlet on a tractor, which involves removal of the female quick connect coupler from a legacy original equipment selective control valve and inserting into the void the following: a three part insert with a front stepped diameter segment, a back section, which is screwed into front stepped diameter segment, a sleeve which is configured to be inserted after a front O-ring is adjusted and a leading portion of a retention bolt. ## Claims ### Claim 1 A method of reducing environmental soil contamination caused by infiltration of hydraulic oil leaking from a tractor, comprising the steps of: provide a selective control valve thereon for provisioning hydraulic oil under pressure and having a first coupler orifice therein and a second coupler orifice therein; said first coupler orifice having a first quick release mechanism disposed therein; expose said first quick release mechanism; insert through said first coupler orifice, until seated therein, an insert assembly having an insert maximum diameter portion, intermediate diameter portion, a minimum diameter portion, an opposing face, a front O-ring, an interior section, a back O-ring, a back portion, a back flat face portion, and an interior back face; by rotatably engaging one of said back portion and said back flat face portion, tighten said interior section toward said minimum diameter portion at said opposing face, thereby causing an increase in an outside diameter of said front O-ring disposed between said opposing face and said interior section; move a sleeve over said back portion until engaged with said back O-ring; install a retention bolt through a large washer into an internally threaded portion of said interior section at said interior back face; and tighten said retention bolt, thereby causing an outside diameter of said back O-ring to increase. ### Claim 2 (depends on 1) The method of claim 1 wherein said selective control valve is a legacy original equipment selective control valve. ### Claim 3 (depends on 1) The method of claim 1 wherein said large washer has a larger outside diameter than said sleeve. ### Claim 4 (depends on 3) The method of claim 3 wherein said interior section has an interior front face, a front unthreaded section and a threaded section. ### Claim 5 (depends on 4) The method of claim 4 wherein one of said minimum diameter portion and said intermediate diameter portion has an intermediate internally threaded orifice portion which is configured to mate with said threaded section. ### Claim 6 (depends on 5) The method of claim 5 wherein said step of rotatably engaging one of said back portion and said back flat face portion involves a mating of said threaded section with said intermediate internally threaded orifice portion. ### Claim 7 (depends on 6) The method of claim 6 where said sleeve is configured to slide over said back portion. ### Claim 8 (depends on 7) The method of claim 7 wherein said back portion is an externally unthreaded back portion. ### Claim 9 (depends on 8) The method of claim 8 wherein said back flat face portion is configured to mate with and be turned by a wrench. ### Claim 10 (depends on 9) The method of claim 9 wherein on of said insert maximum diameter portion and said intermediate diameter portion has an indexing protuberance extending externally therefrom. ### Claim 11 A method of reducing environmental soil contamination caused by infiltration of hydraulic oil leaking from a tractor, comprising the steps of: provide a selective control valve thereon for provisioning hydraulic oil under pressure and having a first coupler orifice therein and a second coupler orifice therein; said first coupler orifice having a first quick release mechanism disposed therein: expose said first quick release mechanism; insert through said first coupler orifice, until seated therein, an insert assembly having an insert maximum diameter portion, intermediate diameter portion, a minimum diameter portion, an opposing face, an interior section, a back portion, a back flat face portion, an interior back face; move a sleeve over said back portion until engaged with a back O-ring; and provide a large washer which has a larger outside diameter than said sleeve. ### Claim 12 (depends on 11) The method of claim 11 where said sleeve is configured to slide over said back portion. ### Claim 13 A method of reducing environmental soil contamination caused by infiltration of hydraulic oil leaking from a tractor, comprising the steps of: provide a selective control valve thereon for provisioning hydraulic oil under pressure and having a first coupler orifice therein and a second coupler orifice therein; said first coupler orifice having a first quick release mechanism disposed therein: expose said first quick release mechanism; insert through said first coupler orifice, until seated therein, an insert assembly having an insert maximum diameter portion, intermediate diameter portion, a minimum diameter portion, an opposing face, an interior section, a back portion, a back flat face portion, and an interior back face; and move a sleeve over said back portion until engaged with a back O-ring and wherein said interior section has an interior front face, a front unthreaded section and a threaded section.