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公开(公告)号:US20230258891A1
公开(公告)日:2023-08-17
申请号:US18309078
申请日:2023-04-28
Applicant: Cisco Technology, Inc.
Inventor: Rohit Dev Gupta , Narasimha Reddy Emmareddy , Giovanni Giobbio
CPC classification number: G02B6/4269 , G02B6/4261 , H05K7/20409
Abstract: In one embodiment, an apparatus includes an optical module, and a heat sink for attachment to an optical module cage configured for receiving the optical module, the heat sink having a surface in which recesses are formed. The optical module includes a thermal interface material attached to a surface of the optical module for thermal contact with the heat sink, and lifting elements extending from the surface. The lifting elements are configured to create a gap between the thermal interface material and the heat sink during insertion of the optical module into the optical module cage or removal of the optical module from the optical module cage, and are positioned for insertion into aligned recesses in the heat sink when the optical module is fully inserted into the optical module cage to eliminate the gap and provide contact between the heat sink and the thermal interface material.
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公开(公告)号:US11678466B2
公开(公告)日:2023-06-13
申请号:US17329043
申请日:2021-05-24
Applicant: CISCO TECHNOLOGY, INC.
Inventor: Rohit Dev Gupta , Narasimha Reddy Emmareddy , Manjunatha Reddy Shivashankara , Suresh Kumar Vadivazhagan , Giovanni Giobbio
IPC: H05K7/20 , H01R13/516 , G02B6/42
CPC classification number: H05K7/2039 , H01R13/516 , G02B6/4269
Abstract: In one embodiment, an apparatus includes a heat sink for attachment to an optical module cage configured for receiving an optical module, a thermal interface material attached to a surface of the heat sink for thermal contact with the optical module, and a plurality of lifting elements extending from the surface of the heat sink. The lifting elements are configured to create a gap between the thermal interface material and the optical module during insertion of the optical module into the optical module cage or removal of the optical module from the optical module cage, the plurality of lifting elements positioned for insertion into aligned recesses in the optical module when the optical module is fully inserted into the optical module cage to eliminate the gap and provide contact between the optical module and the thermal interface material.
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公开(公告)号:US11657684B2
公开(公告)日:2023-05-23
申请号:US17733612
申请日:2022-04-29
Applicant: Cisco Technology, Inc.
Inventor: Rohit Dev Gupta , Joel Richard Goergen
Abstract: An optical module includes a housing with a first end and a handle extending from the second end. A temperature indicator on the handle is thermally coupled to the housing to improve correlation with an optical module surface temperature. The temperature indicator provides an indication that the optical module surface temperature of the housing exceeds a predefined temperature limit.
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公开(公告)号:US20220262213A1
公开(公告)日:2022-08-18
申请号:US17733612
申请日:2022-04-29
Applicant: Cisco Technology, Inc.
Inventor: Rohit Dev Gupta , Joel Richard Goergen
Abstract: An optical module includes a housing with a first end and a handle extending from the second end. A temperature indicator on the handle is thermally coupled to the housing to improve correlation with an optical module surface temperature. The temperature indicator provides an indication that the optical module surface temperature of the housing exceeds a predefined temperature limit.
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公开(公告)号:US20210153387A1
公开(公告)日:2021-05-20
申请号:US17157574
申请日:2021-01-25
Applicant: CISCO TECHNOLOGY, INC.
Inventor: Rohit Dev Gupta
Abstract: In one embodiment, an apparatus includes a fan tray comprising a plurality of fans for cooling modules within a modular electronic system with airflow from a front of the modular electronic system to a back of the modular electronic system, and a hinge member for connecting the fan tray to a front panel of the modular electronic system with the fans positioned in front of the modules. The fan tray is rotatable on the hinge member for movement away from the front panel to allow for replacement of one of the modules.
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26.
公开(公告)号:US10932387B2
公开(公告)日:2021-02-23
申请号:US16230194
申请日:2018-12-21
Applicant: CISCO TECHNOLOGY, INC.
Inventor: Joel Richard Goergen , Rohit Dev Gupta , Paolo Sironi
Abstract: In one embodiment, as apparatus includes a quick release system for installation of a module of a network communications system in a rack and removal of the module from the rack, the quick release system comprising a rack bracket for attachment to the rack, the rack bracket comprising a ground lug for providing a ground connection, and a module bracket for attachment to the module, the module bracket comprising a thumb screw for securely connecting the module bracket to the rack bracket. A method for installing the module on the rack is also disclosed herein.
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公开(公告)号:US10751658B2
公开(公告)日:2020-08-25
申请号:US15945399
申请日:2018-04-04
Applicant: CISCO TECHNOLOGY, INC.
Inventor: Rohit Dev Gupta , Shailesh R. Nayak , Arjun Jayaprakash
Abstract: In one embodiment, an apparatus includes a frame for mounting in a rack in a position adjacent and external to a network device supported by the rack and a filter module for holding a filter for filtering air entering an air inlet of the network device. The frame includes an opening for receiving the filter module and positions the filter adjacent to the air inlet of the network device when installed on the rack.
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公开(公告)号:US20200154600A1
公开(公告)日:2020-05-14
申请号:US16184550
申请日:2018-11-08
Applicant: Cisco Technology, Inc.
Inventor: Rohit Dev Gupta , Robert Gregory Twiss
IPC: H05K7/20
Abstract: In one embodiment, an apparatus includes a fan for cooling electronics within a chassis, the fan comprising a rotor with a plurality of fan blades connected thereto for generating an axial airflow during operation of the fan, a sensor for detecting failure of the fan, and an airflow blocking device positioned at an exhaust side of the fan and configured to prevent airflow through the fan upon detection of the fan failure, wherein the airflow blocking device is stowed in a position removed from a path of the axial airflow generated by the fan during operation of the fan. A method for preventing airflow recirculation at a failed fan is also disclosed herein.
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公开(公告)号:US10470335B2
公开(公告)日:2019-11-05
申请号:US16022470
申请日:2018-06-28
Applicant: CISCO TECHNOLOGY, INC.
Inventor: Rohit Dev Gupta , Prashanth Pavithran , Viktor Brauer , Shailesh R. Nayak
Abstract: In one embodiment, an apparatus includes a frame comprising a top wall, a bottom wall, and sides defining an opening for receiving a plurality of removable electronic modules, a guide slidably insertable into the frame to partition an upper or lower portion of the opening when inserted into the frame, wherein the guide comprises a first edge for slidable engagement with the top wall or the bottom wall, and a lead screw extending from an opening in the guide spaced from a front end of the guide, to a back end of the guide for connecting the guide to the frame.
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公开(公告)号:US20170290192A1
公开(公告)日:2017-10-05
申请号:US15243178
申请日:2016-08-22
Applicant: Cisco Technology, Inc.
Inventor: Joel R. Goergen , Rohit Dev Gupta , Arjun Jayaprakash , Robert Curto , Charles Calvin Byers
CPC classification number: H05K7/1491 , F16B2001/0035 , G02B6/444 , G02B6/4452 , G02B6/4453 , G02B6/4457 , G02B6/4471 , G02B6/4478 , H02G3/0456 , H02G3/30
Abstract: In one embodiment, an adjustable cable management system is disclosed. The system includes a tray base having a first end. The system also includes a tray door coupled to the tray base and substantially opposite the first end of the tray base when in a closed position. The system further includes a plurality of cable guides coupled to the first end of the tray base and located between the first end of the tray base and the tray door. A particular cable guide is coupled to the first end of the tray base at a selected angle from among a plurality of selectable angles.
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