# US 10,767,597 B2 · Collapsible drag link > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,767,597 B2 - Document ID: US10767597B2 - Status: Granted - Kind: B2 - Application number: 16/022,029 - Filed: 2018-06-28 - Published: 2020-01-02 - Granted: 2020-09-08 - Earliest claimed: 2018-06-28 - Assignees: Rohr, Inc. - Applicants: Rohr, Inc. - Inventors: Bryce Tyler Kelford - Web page: https://patentgrep.com/patent/US10767597B2 ## CPC - F02K 1/70: using thrust reverser flaps or doors mounted on the fan housing - F02K 1/763: {with actuating systems or actuating devices; Arrangement of actuators for thrust reversers} - F02K 1/72: the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow - F05D 2230/60: Assembly methods - F05D 2260/50: Kinematic linkage, i.e. transmission of position - F05D 2260/52: involving springs - F02K: JET-PROPULSION PLANTS (features of jet-propulsion plants common to gas-turbine plants, air intakes or fuel supply control of air-breathing jet-propulsion plants F02C7/00, F02C9/00) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A thrust reverser system of a nacelle is provided. The thrust reverser system may include a pressure shell, a blocker door, and a drag link. The blocker door may be pivotably coupled to the pressure shell. The drag link may include a first segment pivotably coupled to a second segment and a third segment pivotably coupled to the second segment and the blocker door. ## Claims ### Claim 1 A thrust reverser system comprising: a pressure shell; a blocker door pivotably coupled to the pressure shell; and a drag link comprising: a first segment pivotably coupled to a second segment, and a third segment pivotably coupled to the second segment and the blocker door, wherein the second segment is configured for nesting within the first segment and the third segment is configured for nesting within the second segment when the blocker door is in a stowed position. ### Claim 2 (depends on 1) The thrust reverser system of claim 1, wherein a first end of the second segment is coupled with a second end of the first segment, and wherein a second end of the second segment is coupled with a first end of the third segment. ### Claim 3 (depends on 1) The thrust reverser system of claim 1, wherein a first end of the first segment is coupled to an outer fixed structure of the thrust reverser system. ### Claim 4 (depends on 1) The thrust reverser system of claim 1, wherein the first segment comprises a first width greater than a second width of the second segment. ### Claim 5 (depends on 4) The thrust reverser system of claim 4, wherein the second width of the second segment is greater than a third width of the third segment. ### Claim 6 (depends on 1) The thrust reverser system of claim 1, wherein a second end of the third segment is coupled to an aft end of the blocker door. ### Claim 7 (depends on 1) The thrust reverser system of claim 1, wherein the blocker door comprises a trench defined at least partially by a first sidewall, a second sidewall, and a joining wall disposed between the first sidewall and second sidewall. ### Claim 8 (depends on 1) The thrust reverser system of claim 1, wherein the first segment and the second segment are coupled via a first torsional spring. ### Claim 9 (depends on 1) The thrust reverser system of claim 1, wherein the second segment and the third segment are coupled via a second torsional spring. ### Claim 10 A nacelle having a thrust reverser comprising: a pressure shell; a blocker door pivotably coupled to the pressure shell; and a drag link comprising: a first segment pivotably coupled to a second segment, and a third segment pivotably coupled to the second segment and the blocker door, wherein the second segment is configured for nesting within the first segment and the third segment is configured for nesting within the second segment when the blocker door is in a stowed position. ### Claim 11 (depends on 10) The nacelle of claim 10, wherein a first end of the second segment is coupled with a second end of the first segment, and wherein a second end of the second segment is coupled with a first end of the third segment. ### Claim 12 (depends on 10) The nacelle of claim 10, wherein a first end of the first segment is coupled to an outer fixed structure of the thrust reverser. ### Claim 13 (depends on 10) The nacelle of claim 10, wherein the first segment comprises a first width greater than a second width of the second segment. ### Claim 14 (depends on 13) The nacelle of claim 13, wherein the second width of the second segment is greater than a third width of the third segment. ### Claim 15 (depends on 10) The nacelle of claim 10, wherein a second of the third segment is coupled to an aft end the blocker door. ### Claim 16 (depends on 10) The nacelle of claim 10, wherein the blocker door comprises a trench defined at least partially by a first sidewall, a second sidewall, and a joining wall disposed between the first sidewall and second sidewall. ### Claim 17 (depends on 10) The nacelle of claim 10, wherein the first segment and the second segment are coupled via a first torsional spring, and wherein the second and the third segment are coupled via a second torsional spring. ### Claim 18 A method of manufacturing a drag link for use in a thrust reverser of a nacelle, the method comprising, coupling a second end of a first segment pivotably to a first end of a second segment, coupling a second end of the second segment pivotably to a first end of a third segment, coupling a second end of the third segment pivotably to a blocker door of the thrust reverser, wherein the second segment is configured for nesting within the first segment and the third segment is configured for nesting within the second segment when the blocker door is in a stowed position. ### Claim 19 (depends on 18) The method of claim 18, further comprising coupling a first end of the first segment to an outer fixed structure. ### Claim 20 (depends on 18) The method of claim 18, further comprising coupling a forward end of the blocker door to a pressure shell.