# US 11,029,473 B2 · Fiber optic connector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,029,473 B2 - Document ID: US11029473B2 - Status: Granted - Kind: B2 - Application number: 15/002,559 - Filed: 2016-01-21 - Published: 2016-07-21 - Granted: 2021-06-08 - Earliest claimed: 2015-01-21 - Assignees: Tyco Electronics (Shanghai) Co., Ltd. - Applicants: Tyco Electronics (Shanghai) Co. Ltd. - Inventors: Zhang Jinqiang; Zhao Liqi; Wu Xifei - Web page: https://patentgrep.com/patent/US11029473B2 ## CPC - G02B 6/38875: {Protection from bending or twisting} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A fiber optic connector is provided. The fiber optic connector includes a housing, a ferrule received in the housing, and an arc-shaped tail tube. The arc-shaped tail tube is secured to a rear end of the housing and includes a ring end portion and a main body. The ring end portion is connected to the rear end, while the main body extends from the ring end portion away from the housing. ## Claims ### Claim 1 A fiber optic connector, comprising: a housing; a ferrule received in the housing; and an arc-shaped tail tube secured to a rear end of the housing and having: (a) a ring end portion connected to the rear end of the housing, (b) a main body extending from the ring end portion away from the housing, (c) a U-shaped groove between walls of the main body and extending along an arc path thereof, an opening of the U-shaped groove extending continuously along the arc path from the ring end portion to a distal end of the main body, and (d) a cable receiving passageway positioned at a proximal end of the main body and adjacent to the ring end portion and having an opening in the main body larger than the opening of the U-shaped groove, the opening of the cable receiving passageway extending through the walls of the main body and centered at a position radially offset from a center of the opening of the U-shaped groove with respect to a central axis of the arc-shaped tail tube. ### Claim 2 (depends on 1) A fiber optic connector according to claim 1, further including a protrusion on an inner wall of the ring end portion. ### Claim 3 (depends on 2) A fiber optic connector according to claim 2, wherein the protrusion is semi-circle shaped. ### Claim 4 (depends on 1) The fiber optic connector according to claim 1, further comprising a reinforcement rib disposed along an exterior surface of the main body and opposite to the cable receiving passageway. ### Claim 5 (depends on 1) The fiber optic connector according to claim 1, wherein an optical cable in a first position extends through the ring end portion and the opening of the cable receiving passageway along a straight line path. ### Claim 6 (depends on 5) The fiber optic connector according to claim 5, wherein the optical cable in a second position extends through the U-shaped groove along the arc path. ### Claim 7 (depends on 1) The fiber optic connector according to claim 1, wherein the cable receiving passageway is in communication with an inner bore of the ring end portion and the opening of the U-shaped groove along a common linear axis extending there through. ### Claim 8 (depends on 6) The fiber optic connector according to claim 6, wherein the U-shaped groove and the opening of the cable receiving passageway are configured such that an optical cable attached to the connector is moveable between the first position and the second position without being detached from the connector. ### Claim 9 (depends on 1) The fiber optic connector according to claim 1, wherein the opening of the cable receiving passageway is continuous with the opening of the U-shaped groove. ### Claim 10 (depends on 1) The fiber optic connector according to claim 1, wherein the U-shaped groove opens substantially perpendicular to the arc path and the cable receiving passageway opening is formed through a radially-outward facing side of the arc-shaped tail tube. ### Claim 11 (depends on 1) The fiber optic connector according to claim 1, wherein the opening of the cable receiving passageway and an inner bore of the ring end portion are defined about a common linear axis such that an optical cable in a first position extends through the opening of the cable receiving passageway and the inner bore along a straight line path. ### Claim 12 (depends on 11) The fiber optic connector according to claim 11, wherein, when viewed in the direction of the straight line path, the opening of the cable receiving passageway defines a generally circular opening complementary to a circular cross-section of an optical cable extending therethrough in the first position. ### Claim 13 (depends on 1) The fiber optic connector according to claim 1, wherein the opening of the cable receiving passageway and an inner bore of the ring end portion are coaxial. ### Claim 14 (depends on 1) The fiber optic connector according to claim 1, wherein the ring end portion defines a closed ring continuous about its circumference. ### Claim 15 A fiber optic connector, comprising: a housing; a ferrule received in the housing; and an arc-shaped tail tube secured to a rear end of the housing and having: (a) a ring end portion connected to the rear end of the housing and having a semi-circle shaped protrusion on an inner wall thereof, (b) a main body extending from the ring end portion away from the housing, (c) a groove between walls of the main body and extending along an arc path thereof, an opening of the groove centered on a first side of the arc-shaped tail tube and substantially perpendicular to the arc path and extending continuously along the arc path and centered on the first side from the ring end portion to a distal end of the main body, and (d) a cable receiving passageway positioned at a proximal end of the main body and adjacent to the ring end portion and having an opening in the main body larger than the opening of the groove, the opening of the cable receiving passageway extending through the walls of the main body at a position offset from the opening of the groove and centered on a second radially-outward facing side of the arc-shaped tail tube distinct from the first side. ### Claim 16 (depends on 15) A fiber optic connector according to claim 15, wherein the groove is U-shaped. ### Claim 17 (depends on 15) The fiber optic connector according to claim 15, further comprising a reinforcement rib disposed along an exterior surface of the main body and opposite to the cable receiving passageway. ### Claim 18 (depends on 15) The fiber optic connector according to claim 15, wherein an optical cable in a first position extends through the ring end portion and the opening of the cable receiving passageway along a straight line path. ### Claim 19 (depends on 18) The fiber optic connector according to claim 18, wherein the optical cable in a second position extends through the groove along the arc path. ### Claim 20 (depends on 15) The fiber optic connector according to claim 15, wherein the first side of the arc-shaped tail tube faces in a first radial direction with respect to a central axis of the arc-shaped tail tube, and wherein the second side of the arc-shaped tail tube faces in a second radial direction with respect to a central axis of the arc-shaped tail tube distinct from the first direction.