Patents by Inventor David J. Lima
David J. Lima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110182027Abstract: Air flow ducts for improving the air flow within data processing units are described herein. In some embodiments, a duct includes an inlet portion and an outlet portion. An interior surface of the outlet portion of the duct defines, at least in part, a portion of a flow path. The duct is configured to be coupled to a printed circuit board within a data processing unit such that a first portion of a cooling fluid can flow within the flow path between the inlet portion of the duct and an electronic device coupled to the printed circuit board. An exterior surface of the outlet portion of the duct is configured to redirect a second portion of the cooling fluid to a volume within the data processing unit apart from the electronic device.Type: ApplicationFiled: January 28, 2010Publication date: July 28, 2011Inventors: David J. LIMA, John KULL
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Patent number: 7959455Abstract: An apparatus for remotely releasing a connector, e.g., an RJ-45 connector, is described. Embodiments of the invention allow a user to release a cable comprising a connector from a connector jack when the connector jack is difficult to reach. The invention may be particularly useful to release cables from devices comprising an array of connector jacks.Type: GrantFiled: June 22, 2009Date of Patent: June 14, 2011Assignee: Juniper Networks, Inc.Inventors: Michael Armstrong, Keith J. Hocker, David J. Lima
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Patent number: 7951650Abstract: Thermal management is provided for a device. The device may include a substrate having a mounting area on a first surface of the substrate. The device may also include first thermal vias extending from the mounting area to at least an interior of the substrate. The device may also include at least one thermal plane substantially parallel to the first surface of the substrate, the at least one thermal plane being in thermal contact with at least one of the first thermal vias. The device may also include a heat sink attachment area, and second thermal vias extending from the heat sink attachment area to the interior of the substrate, the at least one thermal plane being in thermal contact with the second thermal vias.Type: GrantFiled: October 23, 2009Date of Patent: May 31, 2011Assignee: Juniper Networks, Inc.Inventor: David J. Lima
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Publication number: 20110110048Abstract: In some embodiments, an apparatus includes a printed circuit board and a thermal interface member. The printed circuit board is configured to be coupled to an electronic device, such as, for example, a removable (or “pluggable”) optical transceiver. A first surface of the printed circuit board includes a thermally-conductive portion, and a second surface of the printed circuit board includes a thermally-conductive portion that is coupled to the thermally-conductive portion of the first surface by a thermally-conductive via between the first surface and the second surface. The thermal interface member is coupled to the first surface of the printed circuit board such that a portion of the thermal interface member is in contact with the thermally-conductive portion of the first surface. The portion of thermal interface member is deformable and thermally-conductive.Type: ApplicationFiled: November 11, 2009Publication date: May 12, 2011Inventor: David J. LIMA
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Patent number: 7916472Abstract: A data processing unit includes a chassis configured to contain a line card. The chassis defines, at least in part, a portion of a first flow pathway and a portion of a second flow pathway. The chassis is configured such that a first portion of a gas can flow within the first flow pathway between an intake region and the first end portion of the line card such that the first portion of the gas flows across a first end portion of the line card in a first direction. The chassis is configured such that a second portion of the gas can flow within the second flow pathway between the intake region and a second end portion of the line card such that the second portion of the gas flows across the second end portion of the line card in a second direction opposite the first direction.Type: GrantFiled: August 17, 2010Date of Patent: March 29, 2011Assignee: Juniper Networks, Inc.Inventors: Gunes Aybay, David J. Lima, Olaf Moeller
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Publication number: 20110056660Abstract: A front-to-back cooling system allows cooling of an apparatus containing two orthogonal sets of modules. Each set of modules is independently cooled. A vertical set of modules is cooled with vertical air flow across the modules that enters from a front of the apparatus and exhausts from a back of the apparatus. A horizontal set of modules is cooled with horizontal front-to-back air flow. When the horizontal set of modules is at the front of the apparatus, a plenum extending exterior to the vertical set of modules allows exhausting horizontally flowing air to the rear of the apparatus. When the horizontal set of modules is at the rear of the apparatus, a plenum extending exterior to the vertical set of modules allows moving air from the front of the apparatus to a chamber holding the horizontal modules.Type: ApplicationFiled: September 23, 2010Publication date: March 10, 2011Applicant: JUNIPER NETWORKS, INC.Inventors: Gunes Aybay, Sindhu Pradeep, Jean-Marc Frailong, David J. Lima
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Publication number: 20110011567Abstract: A front-to-back cooling system allows cooling of an apparatus containing two orthogonal sets of modules. Each set of modules is independently cooled. A vertical set of modules is cooled with vertical air flow across the modules that enters from a front of the apparatus and exhausts from a back of the apparatus. A horizontal set of modules is cooled with horizontal front-to-back air flow. When the horizontal set of modules is at the front of the apparatus, a plenum extending exterior to the vertical set of modules allows exhausting horizontally flowing air to the rear of the apparatus. When the horizontal set of modules is at the rear of the apparatus, a plenum extending exterior to the vertical set of modules allows moving air from the front of the apparatus to a chamber holding the horizontal modules.Type: ApplicationFiled: September 23, 2010Publication date: January 20, 2011Applicant: JUNIPER NETWORKS, INC.Inventors: Gunes Aybay, Sindhu Pradeep, Jean-Marc Frailong, David J. Lima
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Publication number: 20110011562Abstract: A front-to-back cooling system allows cooling of an apparatus containing two orthogonal sets of modules. Each set of modules is independently cooled. A vertical set of modules is cooled with vertical air flow across the modules that enters from a front of the apparatus and exhausts from a back of the apparatus. A horizontal set of modules is cooled with horizontal front-to-back air flow. When the horizontal set of modules is at the front of the apparatus, a plenum extending exterior to the vertical set of modules allows exhausting horizontally flowing air to the rear of the apparatus. When the horizontal set of modules is at the rear of the apparatus, a plenum extending exterior to the vertical set of modules allows moving air from the front of the apparatus to a chamber holding the horizontal modules.Type: ApplicationFiled: September 23, 2010Publication date: January 20, 2011Applicant: JUNIPER NETWORKS, INC.Inventors: Gunes Aybay, Pradeep Sindhu, Jean-Marc Frailong, David J. Lima
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Patent number: 7826222Abstract: A front-to-back cooling system allows cooling of an apparatus containing two orthogonal sets of modules. Each set of modules is independently cooled. A vertical set of modules is cooled with vertical air flow across the modules that enters from a front of the apparatus and exhausts from a back of the apparatus. A horizontal set of modules is cooled with horizontal front-to-back air flow. When the horizontal set of modules is at the front of the apparatus, a plenum extending exterior to the vertical set of modules allows exhausting horizontally flowing air to the rear of the apparatus. When the horizontal set of modules is at the rear of the apparatus, a plenum extending exterior to the vertical set of modules allows moving air from the front of the apparatus to a chamber holding the horizontal modules.Type: GrantFiled: July 3, 2008Date of Patent: November 2, 2010Assignee: Juniper Networks, Inc.Inventors: Gunes Aybay, Jean-Marc Frailong, Sindhu Pradeep, David J. Lima
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Patent number: 7804684Abstract: A data processing unit includes a chassis configured to contain a line card. The chassis defines, at least in part, a portion of a first flow pathway and a portion of a second flow pathway. The chassis is configured such that a first portion of a gas can flow within the first flow pathway between an intake region and the first end portion of the line card such that the first portion of the gas flows across a first end portion of the line card in a first direction. The chassis is configured such that a second portion of the gas can flow within the second flow pathway between the intake region and a second end portion of the line card such that the second portion of the gas flows across the second end portion of the line card in a second direction opposite the first direction.Type: GrantFiled: December 22, 2008Date of Patent: September 28, 2010Assignee: Juniper Networks, Inc.Inventors: Gunes Aybay, David J. Lima, Olaf Moeller
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Patent number: 7684179Abstract: An electronic device includes a bay for a removable component with a vertical axis of insertion and removal. The component is inserted upwardly in the electronic device with aid of an actuation mechanism. For example, the actuation mechanism may include a lever and a horizontal support member sized to hold the bottom side of the component. Rotation of the lever translates the support member in the vertical direction to smoothly lift the component into a seated position in which connectors in the component and the electronic device are coupled. The actuation mechanism may include a latch to hold the component securely in the seated position. Rotation of the lever in the opposite direction lowers the support member. The actuation mechanism may include one or more tabs on the horizontal support member or elsewhere that pull the component during removal to overcome the unmating force of the connectors.Type: GrantFiled: December 8, 2005Date of Patent: March 23, 2010Assignee: Juniper Networks, Inc.Inventor: David J. Lima
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Publication number: 20100039775Abstract: Thermal management is provided for a device. The device may include a substrate having a mounting area on a first surface of the substrate. The device may also include first thermal vias extending from the mounting area to at least an interior of the substrate. The device may also include at least one thermal plane substantially parallel to the first surface of the substrate, the at least one thermal plane being in thermal contact with at least one of the first thermal vias. The device may also include a heat sink attachment area, and second thermal vias extending from the heat sink attachment area to the interior of the substrate, the at least one thermal plane being in thermal contact with the second thermal vias.Type: ApplicationFiled: October 23, 2009Publication date: February 18, 2010Applicant: JUNIPER NETWORKS, INC.Inventor: David J. LIMA
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Publication number: 20100002382Abstract: A front-to-back cooling system allows cooling of an apparatus containing two orthogonal sets of modules. Each set of modules is independently cooled. A vertical set of modules is cooled with vertical air flow across the modules that enters from a front of the apparatus and exhausts from a back of the apparatus. A horizontal set of modules is cooled with horizontal front-to-back air flow. When the horizontal set of modules is at the front of the apparatus, a plenum extending exterior to the vertical set of modules allows exhausting horizontally flowing air to the rear of the apparatus. When the horizontal set of modules is at the rear of the apparatus, a plenum extending exterior to the vertical set of modules allows moving air from the front of the apparatus to a chamber holding the horizontal modules.Type: ApplicationFiled: July 3, 2008Publication date: January 7, 2010Applicant: Juniper Networks, Inc.Inventors: Gunes Aybay, Pradeep Sindhu, Jean-Marc Frailong, David J. Lima
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Patent number: 7629683Abstract: Thermal management is provided for a device. The device may include a substrate having a mounting area on a first surface of the substrate. The device may also include first thermal vias extending from the mounting area to at least an interior of the substrate. The device may also include at least one thermal plane substantially parallel to the first surface of the substrate, the at least one thermal plane being in thermal contact with at least one of the first thermal vias. The device may also include a heat sink attachment area, and second thermal vias extending from the heat sink attachment area to the interior of the substrate, the at least one thermal plane being in thermal contact with the second thermal vias.Type: GrantFiled: February 28, 2006Date of Patent: December 8, 2009Assignee: Juniper Networks, Inc.Inventor: David J. Lima
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Publication number: 20090296352Abstract: Thermal management is provided for a device. The device may include a substrate having a mounting area on a first surface of the substrate. The device may also include first thermal vias extending from the mounting area to at least an interior of the substrate. The device may also include at least one thermal plane substantially parallel to the first surface of the substrate, the at least one thermal plane being in thermal contact with at least one of the first thermal vias. The device may also include a heat sink attachment area, and second thermal vias extending from the heat sink attachment area to the interior of the substrate, the at least one thermal plane being in thermal contact with the second thermal vias.Type: ApplicationFiled: February 28, 2006Publication date: December 3, 2009Inventor: David J. Lima
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Patent number: 7549888Abstract: An apparatus for remotely releasing a connector, e.g., an RJ-45 connector, is described. Embodiments of the invention allow a user to release a cable comprising a connector from a connector jack when the connector jack is difficult to reach. The invention may be particularly useful to release cables from devices comprising an array of connector jacks.Type: GrantFiled: December 12, 2007Date of Patent: June 23, 2009Assignee: Juniper Networks, Inc.Inventors: Michael Armstrong, Keith J. Hocker, David J. Lima
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Publication number: 20080271875Abstract: A re-workable heat dissipation assembly may include a non-removable adhesive layer. A first interposer layer may be adhered to a device via the non-removable adhesive layer. A removable adhesive layer may be adhered to the first interposer layer. A heat dissipation assembly may be adhered to the removable adhesive layer. Use of an interposer layer and a removable adhesive layer in combination with a non-removable adhesive layer, provides a high performance heat dissipation assembly while enabling re-working of the assembly following initial manufacture.Type: ApplicationFiled: April 28, 2006Publication date: November 6, 2008Applicant: Juniper Networks, Inc.Inventor: David J. Lima
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Patent number: 7420806Abstract: Techniques for distributing airflow for cooling an electronic device are described. Vanes positioned immediately after a set of cooling fans direct airflow over a plurality of components within the device. For example, the vanes may be designed to segment the net fan blade travel area into equal sections—one section per component—to accomplish balanced airflow distribution. Components requiring cooling include cards, e.g., printed circuit boards and the like. A plurality of cards may form slots between the cards and the vanes may divide the airflow equally among the slots to provide consistent cooling for each of the cards. Embodiments of the invention may be directed to distributing cooling airflows within a computing device, e.g., a network router or a server.Type: GrantFiled: November 22, 2005Date of Patent: September 2, 2008Assignee: Juniper Networks, Inc.Inventors: David J. Lima, Eric R. Prather
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Patent number: 7420820Abstract: A device for insertion and extraction of printed circuit boards or other components from a device or system such as a network router includes a positionable handle. The handle adjusts in a manner similar to a handle on a c-clamp, and may be repositioned relative to the centerline of a driveshaft of the device. Additionally, the handle may include internal detents that define selectable handle positions. Various handle positions may allow an operator to utilize limited available space and increase the mechanical advantage of the handle.Type: GrantFiled: October 27, 2005Date of Patent: September 2, 2008Assignee: Juniper Networks, Inc.Inventor: David J. Lima
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Patent number: 7326075Abstract: An apparatus for remotely releasing a connector, e.g., an RJ-45 connector, is described. Embodiments of the invention allow a user to release a cable comprising a connector from a connector jack when the connector jack is difficult to reach. The invention may be particularly useful to release cables from devices comprising an array of connector jacks.Type: GrantFiled: June 17, 2005Date of Patent: February 5, 2008Assignee: Juniper Networks, Inc.Inventors: Michael Armstrong, Keith J. Hocker, David J. Lima