# US 2019/0170948 A1 · Optical fiber adapter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170948 A1 - Document ID: US20190170948A1 - Status: Published application - Kind: A1 - Application number: 16/211,838 - Filed: 2018-12-06 - Published: 2019-06-06 - Earliest claimed: 2017-12-06 - Assignees: Advanced Connectek Inc. - Applicants: Advanced-Connectek Inc. - Inventors: Yang-Yang Cui; Gui-Hua Wen - Web page: https://patentgrep.com/patent/US20190170948A1 ## CPC - G02B 6/3825: {with an intermediate part, e.g. adapter, receptacle, linking two plugs} - G02B 6/3897: {Connectors fixed to housings, casing, frames or circuit boards (G02B6/44528 takes precedence)} - G02B 6/3849: {using mechanical protective elements, e.g. caps, hoods, sealing membranes (G02B6/3816 takes precedence; provisionally see H01R13/44)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract An optical fiber adapter includes housing, a base body, an occluder, and optical fiber components. A first end surface of the housing includes an insertion opening. A second end surface of the housing includes a connection opening. A through groove is in the housing, and the insertion opening communicates with the connection opening through the through groove. The first end surface includes positioning portions around a periphery of the insertion opening. A hook portion is extending outwardly from the positioning portion. The base body is in the through groove of the housing. The occluder is connected to the partition plate. The optical fiber component is at the assembling portion. The housing of the optical fiber adapter does not have the protruding portions. Hence, several optical fiber adapters can be densely arranged side-by-side. Therefore, the number of the adapters arranged in the optical fiber cassette can be increased. ## Claims ### Claim 1 An optical fiber adapter, comprising: a housing, wherein a first end surface of the housing comprises an insertion opening, a second end surface of the housing comprises a connection opening, a through groove is in the housing, and the insertion opening communicates with the connection opening through the through groove, the first end surface comprises a plurality of positioning portions around a periphery of the insertion opening, and a hook portion is extending outwardly from each of the positioning portions; a base body in the through groove of the housing, wherein one of two ends of the base body comprises a partition plate in the through groove, and the other end of the base body comprises a plurality of assembling portions out of the through groove, each of the assembling portions comprises an optical channel; a occluder connected to the partition plate, wherein two sides of the occluder respectively comprise an elastic sheet extending toward a side portion of the partition plate; and a plurality of optical fiber components respectively at the assembling portions, wherein each of the optical fiber components comprises a sleeve tube inserted into the corresponding optical channel, a core tube in the sleeve tube, and an elastic member in the sleeve tube and out of the core tube, wherein each of the optical fiber components comprises an insertion core connected to one end of the corresponding core tube and extending toward an inner side of the corresponding optical channel. ### Claim 2 (depends on 1) The optical fiber adapter according to claim 1, wherein each of the assembling portions comprises an engaging groove, and an engaging block is protruding from an outer surface of each of the sleeve tubes for engaging with the corresponding engaging groove. ### Claim 3 (depends on 2) The optical fiber adapter according to claim 2, wherein a buckling groove is on the outer surface of each of the sleeve tubes, and a buckling block is protruding from an outer surface of each of the core tubes for mating with the corresponding buckling groove. ### Claim 4 (depends on 1) The optical fiber adapter according to claim 1, wherein a plurality of ribs is protruding from an outer surface of each of the sleeve tubes. ### Claim 5 (depends on 1) The optical fiber adapter according to claim 1, wherein each of the hook portions comprises a suspended arm formed on the first end surface and a protruding block outwardly extending from an end portion of the suspended arm. ### Claim 6 (depends on 1) The optical fiber adapter according to claim 1, wherein each of the optical fiber components comprises an extension tube connected to one end of the corresponding insertion core. ### Claim 7 (depends on 6) The optical fiber adapter according to claim 6, wherein each of the optical fiber components comprises a stopping ring fitted over the corresponding extension tube. ### Claim 8 (depends on 7) The optical fiber adapter according to claim 7, wherein a stopping block is protruding from each of the stopping rings, and each of the assembling portions comprises a stopping groove for mating with the corresponding stopping block. ### Claim 9 (depends on 1) The optical fiber adapter according to claim 1, further comprising a dustproof lid covering the connection opening. ### Claim 10 (depends on 1) The optical fiber adapter according to claim 1, wherein the first end surface of the housing comprises four positioning portions, two of the positioning portions are at an upper portion of the housing and above the insertion opening, and the other two positioning portions are at a lower portion of the housing and below the insertion opening, the hook portions of the two positioning portions at the upper portion of the housing are extending outwardly along a direction, and the hook portions of the two positioning portions at the lower portion of the housing are extending outwardly along a direction.