# US 10,120,138 B2 · Connector with trigger locking feature, and cable assemblies and methods including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,120,138 B2 - Document ID: US10120138B2 - Status: Granted - Kind: B2 - Application number: 15/618,265 - Filed: 2017-06-09 - Published: 2017-12-14 - Granted: 2018-11-06 - Earliest claimed: 2016-06-13 - Assignees: Corning Research & Development Corporation - Applicants: Corning Optical Communications LLC - Inventors: Ashley Wesley Jones - Web page: https://patentgrep.com/patent/US10120138B2 ## CPC - G02B 6/3825: {with an intermediate part, e.g. adapter, receptacle, linking two plugs} - H01R 13/6275: {Latching arms not integral with the housing (H01R13/6276, H01R13/6277, H01R13/6278 take precedence)} - G02B 6/3878: {comprising a plurality of ferrules, branching and break-out means} - G02B 6/3879: {Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs} - G02B 6/3885: {Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448)} - G02B 6/3898: {Tools, e.g. handheld; Tuning wrenches; Jigs used with connectors, e.g. for extracting, removing or inserting in a panel, for engaging or coupling connectors, for assembling or disassembling components within the connector, for applying clips to hold two connectors together or for crimping (tools for cleaning, G02B6/3866; tools in general B25B)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A fiber optic connector includes a connector sub-assembly having a connector body, a latch arm extending outwardly and rearwardly from a portion of the connector body, a housing in which a rear portion of the connector sub-assembly is received, and a trigger extending outwardly from the housing and over the end of the latch arm. An end of the latch arm can be depressed toward the connector body, and the trigger is configured to flex toward the housing to depress the latch arm. The connector includes a locking member movable between a rearward position in which the locking member prevents the trigger from depressing the latch arm, and a forward position in which the locking member allows the trigger to depress the latch arm. ## Claims ### Claim 1 A fiber optic connector, comprising: a connector sub-assembly including: a ferrule configured to support at least one optical fiber, wherein the ferrule defines a front of the fiber optic connector; a connector body surrounding at least a portion of the ferrule; and a latch arm extending outwardly and rearwardly from a portion of the connector body, wherein an end of the latch arm can be depressed toward the connector body; a housing in which a rear portion of the connector sub-assembly is received; a trigger extending outwardly from the housing and over the end of the latch arm, wherein the trigger is configured to flex toward the housing to depress the latch arm; and a locking member movable between a forward position and a rearward position, wherein the forward position is closer to the front of the fiber optic connector than the rearward position, and further wherein the locking member and trigger are configured so that the locking member prevents the trigger from depressing the latch arm in the rearward position but allows the trigger to depress the latch arm in the forward position. ### Claim 2 (depends on 1) The fiber optic connector according to claim 1, wherein the latch arm and trigger are coupled so that: the latch arm can cause the trigger to flex toward and away from the housing; and the trigger can cause the latch arm to flex toward and away from the connector body. ### Claim 3 (depends on 1) The fiber optic connector according to claim 1, wherein the trigger includes a distal portion extending over the end of the latch arm and a ledge extending under the end of the latch arm. ### Claim 4 (depends on 1) The fiber optic connector according to claim 1, wherein: the trigger includes a topside facing away from the housing and an underside facing toward the housing; and the locking member includes a proximal portion that is on or rearward of the topside of the trigger and a distal portion that extends between the underside of the trigger and the housing. ### Claim 5 (depends on 4) The fiber optic connector according to claim 4, wherein the proximal portion of the locking member includes a raised gripping feature. ### Claim 6 (depends on 4) The fiber optic connector according to claim 4, wherein: the underside of the trigger includes a wedge; the distal portion of the locking member includes a stop feature; and the trigger and locking member are configured so that the stop feature on the distal portion of the locking member: a) is positioned under the wedge in the rearward position of the locking member to prevent at least some movement of the trigger toward the housing, and b) is positioned forward of the wedge in the forward position of the locking member to allow the trigger to move toward the housing and depress the latch arm. ### Claim 7 (depends on 6) The fiber optic connector according to claim 6, wherein: the trigger includes an opening extending between the topside and underside; the locking member includes elongated bars spaced apart from each other and a crossbar extending between the elongated bars, the elongated bars extending through the opening in the trigger, and the crossbar defining the stop feature; the underside of the trigger includes slots configured to accommodate the elongated bars of the locking member; and the wedge of the trigger is positioned between the slots. ### Claim 8 (depends on 7) The fiber optic connector according to claim 7, wherein the trigger and locking member are configured so that the wedge: a) contacts the crossbar on the locking member in the rearward position of the locking member, and b) can be received between the elongated bars in the forward position of the locking member. ### Claim 9 (depends on 1) The fiber optic connector according to claim 1, wherein the trigger includes an opening through which the locking member extends in the forward and rearward positions of the locking member. ### Claim 10 (depends on 1) The fiber optic connector according to claim 1, wherein locking member and trigger are configured to removably secure the locking member in the forward position, rearward position, or both the forward and rearward positions. ### Claim 11 (depends on 1) The fiber optic connector according to claim 1, wherein locking member and trigger include complementary forward locking features configured to removably secure the locking member in the forward position. ### Claim 12 (depends on 11) The fiber optic connector according to claim 11, wherein the complementary forward locking features are configured to secure the locking member in the forward position using a snap-fit or interference fit with the trigger. ### Claim 13 (depends on 11) The fiber optic connector according to claim 11, wherein the complementary forward locking features comprise a post on one of the locking member and the trigger and a slot on the other of the locking member and the trigger. ### Claim 14 (depends on 1) The fiber optic connector according to claim 1, wherein locking member and trigger include complementary rearward locking features configured to secure the locking member in the rearward position. ### Claim 15 (depends on 14) The fiber optic connector according to claim 14, wherein the complementary rearward locking features are configured to secure the locking member in the rearward position using a snap-fit or interference fit with the trigger. ### Claim 16 (depends on 14) The fiber optic connector according to claim 14, wherein the complementary rearward locking features comprise a socket area on the trigger and a shoulder on the locking member configured to be received in the socket area. ### Claim 17 (depends on 1) The fiber optic connector according to claim 1, wherein: the connector sub-assembly is a first connector sub-assembly; the fiber optic connector further comprises a second connector sub-assembly similar to the first connector sub-assembly; a rear portion of the second connector sub-assembly is received in the housing; and the trigger and locking member cooperate in the same manner with the second connector sub-assembly as with the first connector sub-assembly. ### Claim 18 (depends on 1) The fiber optic connector according to claim 1, wherein the trigger is removably coupled to the housing. ### Claim 19 A telecommunication connector, comprising: a connector sub-assembly including: a connector body; and a latch arm extending outwardly and rearwardly from a portion of the connector body, wherein an end of the latch arm can be depressed toward to the connector body; a housing in which a rear portion of the connector sub-assembly is received; a trigger extending outwardly from the housing and over the end of the latch arm, wherein the trigger is configured to move toward the housing to depress the latch arm; and a locking member movable between a forward position and a rearward position relative to the trigger, wherein the locking member and trigger are configured so that the locking member prevents the trigger from depressing the latch arm in the rearward position but allows the trigger to depress the latch arm in the forward position. ### Claim 20 (depends on 19) The telecommunication connector according to claim 19, wherein the connector sub-assembly further includes a ferrule configured to support at least one optical fiber, and wherein the connector body surrounds at least a portion of the ferrule. ### Claim 21 A fiber optic connector, comprising: a connector sub-assembly including: a ferrule configured to support at least one optical fiber, wherein the ferrule defines a front of the fiber optic connector; a connector body surrounding at least a portion of the ferrule; and a latch arm extending outwardly and rearwardly from a portion of the connector body, wherein an end of the latch arm can be depressed toward the connector body; a housing in which a rear portion of the connector sub-assembly is received; a trigger extending outwardly from the housing and over the end of the latch arm, wherein the trigger is configured to flex toward the housing to depress the latch arm; and locking means for preventing the trigger from depressing the latch arm when the locking means is in a rearward position, wherein the locking means is movable relative to the trigger to a forward position that is closer to the front of the fiber optic connector, and further wherein the locking means allows the trigger to depress the latch arm in the forward position. ### Claim 22 A fiber optic cable assembly, comprising: a cable including at least one optical fiber; and a fiber optic connector secured to an end of the cable, the fiber optic connector comprising: a connector sub-assembly including: a ferrule configured to support at least one optical fiber, wherein the ferrule defines a front of the fiber optic connector; a connector body surrounding at least a portion of the ferrule; and a latch arm extending outwardly and rearwardly from a portion of the connector body, wherein an end of the latch arm can be depressed toward the connector body; a housing in which a rear portion of the connector sub-assembly is received; a trigger extending outwardly from the housing and over the end of the latch arm, wherein the trigger is configured to flex toward the housing to depress the latch arm; and a locking member movable between a forward position and a rearward position, wherein the forward position is closer to the front of the fiber optic connector than the rearward position, and further wherein the locking member and trigger are configured so that the locking member prevents the trigger from depressing the latch arm in the rearward position but allows the trigger to depress the latch arm in the forward position. ### Claim 23 A method of securing a fiber optic connector, the fiber optic connector including a connector sub-assembly having a connector body and a latch arm that extends outwardly and rearwardly from a portion of the connector body, a housing in which a rear portion of the connector sub-assembly is received, a trigger extending outwardly from the housing and over the end of the latch arm, a locking member that is movable relative to the trigger between a forward position and a rearward position, the method comprising: depressing the latch arm of the connector sub-assembly toward the connector body, wherein the locking member is in the forward position when the latch arm is depressed; inserting a portion of the fiber optic connector into an adapter; causing the latch arm to move away from the connector body so that the latch arm engages the adapter in a manner that retains the portion of the fiber optic connector in the adapter; and moving the locking member to the rearward position after the latch arm engages the adapter, wherein the locking member and trigger are configured so that the locking member prevents the trigger from depressing the latch arm in the rearward position. ### Claim 24 (depends on 23) The method according to claim 23, wherein depressing the latch arm comprises moving the trigger toward the housing to depress the latch arm toward the connector body. ### Claim 25 (depends on 23) The method according to claim 23, wherein the latch arm is depressed by inserting the portion of the fiber optic connector into the adapter. ### Claim 26 (depends on 23) The method according to claim 23, further comprising: moving the locking member from the rearward position back to the forward position; depressing the latch arm of the connector sub-assembly toward the connector body so that the latch arm no longer retains the portion of the fiber optic connector in the adapter; and removing the fiber optic connector from the adapter.