# US 11,906,091 B2 · Hydraulic coupling system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,091 B2 - Document ID: US11906091B2 - Status: Granted - Kind: B2 - Application number: 17/338,988 - Filed: 2021-06-04 - Published: 2021-12-09 - Granted: 2024-02-20 - Earliest claimed: 2020-06-05 - Assignees: Top Hydraulics, Inc. - Applicants: Top Hydraulics, Inc. - Inventors: Klaus H. Witte - Web page: https://patentgrep.com/patent/US11906091B2 ## CPC - F16L 33/2073: {directly connected to the rigid member} - F16L 33/224: {a clamping ring being arranged between the threaded member and the connecting member} - F16L 13/141: {by crimping or rolling from the outside} - F16L 33/223: {the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts} - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL ## Abstract A hydraulic coupling system is configured to couple a hydraulic hose to a hydraulic cylinder and includes: a compressive adapter assembly including: a first adapter portion configured to receive a portion of the hydraulic hose, and a second adapter portion configured to engage an inlet tube of the hydraulic cylinder, wherein a first tube portion of the inlet tube of the hydraulic cylinder is configured to be received within a portion of the hydraulic hose; and a compressive sleeve assembly configured to engage the compressive adapter assembly and radially compress the first adapter portion of the compressive adapter assembly onto an outer surface of the portion of the hydraulic hose, thus compressing an inner surface of the portion of the hydraulic hose onto the first tube portion of the inlet tube of the hydraulic cylinder. ## Claims ### Claim 1 A hydraulic coupling system configured to couple a hydraulic hose to a hydraulic cylinder, the hydraulic coupling system comprising: a compressive adapter assembly including: a first adapter portion configured to receive a portion of the hydraulic hose, and a second adapter portion configured to engage an inlet tube of the hydraulic cylinder, wherein a first tube portion of the inlet tube of the hydraulic cylinder is configured to be received within the portion of the hydraulic hose, and the second adapter portion is permanently deformable around the inlet tube to permanently retain the second adapter portion with respect to the inlet tube; and a compressive sleeve assembly configured to engage the compressive adapter assembly and radially compress the first adapter portion of the compressive adapter assembly onto an outer surface of the portion of the hydraulic hose, thus compressing an inner surface of the portion of the hydraulic hose onto the first tube portion of the inlet tube of the hydraulic cylinder. ### Claim 2 (depends on 1) The hydraulic coupling system of claim 1 wherein the first tube portion of the inlet tube of the hydraulic cylinder includes one or more surface irregularities configured to engage the inner surface of the portion of the hydraulic hose. ### Claim 3 (depends on 2) The hydraulic coupling system of claim 2 wherein the one or more surface irregularities includes one or more of: one or more circumferential barbs; one or more circumferential ridges; and one or more circumferential grooves. ### Claim 4 (depends on 1) The hydraulic coupling system of claim 1 wherein the inlet tube of the hydraulic cylinder includes a second tube portion configured to be engaged by the second adapter portion of the compressive adapter assembly. ### Claim 5 (depends on 4) The hydraulic coupling system of claim 4 wherein the second tube portion of the inlet tube of the hydraulic cylinder includes a circumferential flange configured to be engaged by the second adapter portion of the compressive adapter assembly. ### Claim 6 (depends on 5) The hydraulic coupling system of claim 5 wherein the second adapter portion of the compressive adapter assembly includes a recess configured to receive the circumferential flange of the second tube portion of the inlet tube of the hydraulic cylinder. ### Claim 7 (depends on 4) The hydraulic coupling system of claim 4 wherein the second adapter portion of the compressive adapter assembly is configured to engage the second tube portion of the inlet tube of the hydraulic cylinder via one or more of a: a swaging operation; a rolling operation; and a crimping operation. ### Claim 8 (depends on 1) The hydraulic coupling system of claim 1 wherein the compressive sleeve assembly is configured to threadably engage the compressive adapter assembly to radially compress the first adapter portion of the compressive adapter assembly onto the outer surface of the portion of the hydraulic hose. ### Claim 9 (depends on 8) The hydraulic coupling system of claim 8 wherein the compressive sleeve assembly is configured to include a tapered female thread portion and the compressive adapter assembly is configured to include a complementary tapered male thread portion. ### Claim 10 (depends on 1) The hydraulic coupling system of claim 1 wherein the compressive sleeve assembly is configured to conically engage the compressive adapter assembly to radially compress the first adapter portion of the compressive adapter assembly onto the outer surface of the portion of the hydraulic hose. ### Claim 11 (depends on 10) The hydraulic coupling system of claim 10 wherein the compressive sleeve assembly is configured to include one or more sleeve locking assemblies configured to engage one or more complementary adapter locking assemblies of the compressive adapter assembly. ### Claim 12 (depends on 1) The hydraulic coupling system of claim 1 wherein the hydraulic cylinder is an automotive hydraulic cylinder. ### Claim 13 (depends on 12) The hydraulic coupling system of claim 12 wherein the automotive hydraulic cylinder is configured to: actuate at least of a portion of a convertible roof; latch at least of a portion of the convertible roof; and unlatch at least of a portion of the convertible roof. ### Claim 14 (depends on 1) The hydraulic coupling system of claim 1 wherein the hydraulic coupling system is constructed of one or more of: a composite material; a polymer material; an alloy; aluminum; titanium; carbon steel; stainless steel; and brass. ### Claim 15 A hydraulic coupling system configured to couple a hydraulic hose to an automotive hydraulic cylinder, the hydraulic coupling system comprising: a compressive adapter assembly including: a first adapter portion configured to receive a portion of the hydraulic hose, and a second adapter portion configured to engage an inlet tube of the automotive hydraulic cylinder, wherein a first tube portion of the inlet tube of the automotive hydraulic cylinder is configured to be received within the portion of the hydraulic hose and includes one or more surface irregularities configured to directly engage an inner surface of the portion of the hydraulic hose; and a compressive sleeve assembly configured to engage the compressive adapter assembly and radially compress the first adapter portion of the compressive adapter assembly onto an outer surface of the portion of the hydraulic hose, thus compressing the inner surface of the portion of the hydraulic hose onto the first tube portion of the inlet tube of the automotive hydraulic cylinder; wherein the inlet tube of the automotive hydraulic cylinder includes a second tube portion configured to be engaged by the second adapter portion of the compressive adapter assembly, wherein the second adapter portion is permanently deformable around the inlet tube to permanently retain the second adapter portion with respect to the inlet tube. ### Claim 16 (depends on 15) The hydraulic coupling system of claim 15 wherein the second tube portion of the inlet tube of the automotive hydraulic cylinder includes a circumferential flange configured to be engaged by the second adapter portion of the compressive adapter assembly. ### Claim 17 (depends on 16) The hydraulic coupling system of claim 16 wherein the second adapter portion of the compressive adapter assembly includes a recess configured to receive the circumferential flange of the second tube portion of the inlet tube of the automotive hydraulic cylinder. ### Claim 18 (depends on 15) The hydraulic coupling system of claim 15 wherein the compressive sleeve assembly is configured to threadably engage the compressive adapter assembly to radially compress the first adapter portion of the compressive adapter assembly onto the outer surface of the portion of the hydraulic hose. ### Claim 19 (depends on 15) The hydraulic coupling system of claim 15 wherein the compressive sleeve assembly is configured to conically engage the compressive adapter assembly to radially compress the first adapter portion of the compressive adapter assembly onto the outer surface of the portion of the hydraulic hose. ### Claim 20 A hydraulic coupling system configured to couple a hydraulic hose to an automotive hydraulic cylinder, the hydraulic coupling system comprising: a compressive adapter assembly including: a first adapter portion configured to receive a portion of the hydraulic hose, and a second adapter portion configured to engage an inlet tube of the automotive hydraulic cylinder, wherein a first tube portion of the inlet tube of the automotive hydraulic cylinder is configured to be received within a portion of the hydraulic hose, and the second adapter portion is permanently deformable around the inlet tube to permanently retain the second adapter portion with respect to the inlet tube; and a compressive sleeve assembly configured to engage the compressive adapter assembly and radially compress the first adapter portion of the compressive adapter assembly onto an outer surface of the portion of the hydraulic hose, thus compressing an inner surface of the portion of the hydraulic hose onto the first tube portion of the inlet tube of the automotive hydraulic cylinder, wherein: the compressive sleeve assembly is configured to threadably engage the compressive adapter assembly to radially compress the first adapter portion of the compressive adapter assembly onto the outer surface of the portion of the hydraulic hose, and the compressive sleeve assembly is configured to include a tapered female thread portion and the compressive adapter assembly is configured to include a complementary tapered male thread portion. ### Claim 21 (depends on 20) The hydraulic coupling system of claim 20 wherein the first tube portion of the inlet tube of the automotive hydraulic cylinder includes one or more surface irregularities configured to engage the inner surface of the portion of the hydraulic hose. ### Claim 22 (depends on 21) The hydraulic coupling system of claim 21 wherein the one or more surface irregularities includes one or more of: one or more circumferential barbs; one or more circumferential ridges; and one or more circumferential grooves.