Patent application number | Description | Published |
20090260789 | HEAT EXCHANGER WITH EXPANDED METAL TURBULIZER - A heat exchanger incorporating a turbulizer or heat transfer surface wherein the turbulizer is a corrugated member having parallel spaced-apart ridges and planar portions extending therebetween. The heat transfer surface has a plurality of micro-openings formed over at least a portion of its surface so as to create a uniform porosity over the portions of the turbulizer in which they are provided. | 10-22-2009 |
20110180241 | Multifluid Heat Exchanger - A heat exchanger has a pair of heat exchange conduits having adjacent primary heat exchange surfaces thermally coupled together for the transfer of heat energy between the conduits. A third fluid conduit has a primary heat transfer surface thermally coupled to the primary heat transfer surfaces of the pair of fluid conduits, so that heat can be transferred between any one of the fluid conduits and each of the other fluid conduits. | 07-28-2011 |
20130061584 | Exhaust Gas Heat Recovery Device - A device for recovering heat from a hot gas stream comprises a gas diverter valve and a gas/liquid heat exchanger. The diverter valve comprises a valve body; a valve element movable between a bypass position and a heat exchange position; and a gas inlet and a gas outlet formed in the valve body. The heat exchanger comprises a heat exchanger core comprised of a stack of core plates arranged parallel to the exhaust gas flow path, and the heat exchanger is located outside the exhaust gas flow path and may be spaced therefrom so as to avoid unwanted heat transfer with the valve in bypass mode. The heat exchanger may include a bottom-most gas flow path adjacent to the bottom plate, and may include a mounting plate which is mechanically secured to the valve body, with a thermally insulating gasket provided between the mounting plate and the valve body. | 03-14-2013 |
20130277029 | Heat Transfer Surfaces With Flanged Apertures - A heat exchanger, turbulizer or heat transfer surface, and a method of making same wherein the turbulizer is a corrugated member having parallel, spaced-apart ridges and planar fins extending therebetween. The planar fins have spaced-apart apertures with opposed peripheral edge portions including transversely extending flanges. | 10-24-2013 |
Patent application number | Description | Published |
20100094993 | Use of Persistent Sessions by a Presence Access Layer - A method for a watcher to receive presence information. The method includes the watcher requesting presence information from a presence access layer and then disconnecting from the presence access layer. The method further includes the presence access layer receiving the requested information through a persistent session with a presence server, storing the requested information, and delivering the requested information to the watcher after the watcher reconnects to the presence access layer. | 04-15-2010 |
20100098105 | Scheduling Policy and Quality of Service Through the Presence Access Layer - A method for specifying a level of Quality of Service (QoS) for a transmission of presence information to a watcher is provided. The method includes a Presence Access Layer (PAL) specifying the level of QoS for the transmission, and the PAL providing the presence information to the watcher using the specified level of QoS. | 04-22-2010 |
20100099387 | Controlling and/or Limiting Publication Through the Presence Access Layer - A method for managing presence information sent from a presentity to a watcher is provided. The method includes the watcher providing watcher information to a presence aspect layer. The method further includes the presence aspect layer determining a manner for providing the presence information to the watcher based on an analysis of the watcher information. | 04-22-2010 |
20120117175 | Use of Persistent Sessions by a Presence Access Layer - A method for a watcher to receive presence information. The method includes the watcher requesting presence information from a presence access layer and then disconnecting from the presence access layer. The method further includes the presence access layer receiving the requested information through a persistent session with a presence server, storing the requested information, and delivering the requested information to the watcher after the watcher reconnects to the presence access layer. | 05-10-2012 |
Patent application number | Description | Published |
20100226336 | Clientless Mobile Subscribers with Seamless Roaming Over Scalable Wide Area Wireless Networks - System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software. | 09-09-2010 |
20110090850 | System and Method for Adaptive Frame Size Management in a Wireless Multihop Network - A system and method for adaptively managing frame size in a wireless multihop network is disclosed. In one embodiment, a packet is transmitted from a source to a destination. A acknowledgement packet is received and a successful acknowledgement packet counter is incremented if the acknowledgement packet arrives prior to a time-out of a timer. A frame size is increased if the successful acknowledgement packet counter reaches a specified value. If the acknowledgement packet arrives after the time-out of the timer, the successful acknowledgement packet counter is reset and the frame size is decreased. These procedures can be repeated until the frame size is greater than or equal to a maximum frame size or less than or equal to a minimum frame size. | 04-21-2011 |
20120002656 | Clientless Mobile Subscribers with Seamless Roaming Over Scalable Wide Area Wireless Networks - System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software. | 01-05-2012 |
20130010695 | System and method for adaptive frame size management in a wireless multihop network - A system and method for adaptively managing frame size in a wireless multihop network is disclosed. In one embodiment, a packet is transmitted from a source to a destination. A acknowledgement packet is received and a successful acknowledgement packet counter is incremented if the acknowledgement packet arrives prior to a time-out of a timer. A frame size is increased if the successful acknowledgement packet counter reaches a specified value. If the acknowledgement packet arrives after the time-out of the timer, the successful acknowledgement packet counter is reset and the frame size is decreased. These procedures can be repeated until the frame size is greater than or equal to a maximum frame size or less than or equal to a minimum frame size. | 01-10-2013 |
Patent application number | Description | Published |
20090299551 | SYSTEM AND METHOD FOR MULTIPLE AIRCRAFT LIFTING A COMMON PAYLOAD - A system and method are provided for controlling a plurality of aircraft to lift a common payload. The system comprises of multiple aircraft tethered to a common payload, where the group of said aircraft form a swarm that is controlled by a pilot station. Each said aircraft is autonomously stabilized and guided through a swarm avionics unit, which further comprises of sensor, communication, and processing hardware. At the said pilot station, a pilot remotely enters payload destinations, which is processed and communicated to each said aircraft. The method for controlling a multi-aircraft lifting system comprises of first inputting the desired location of the payload, and then determining a series of intermediary payload waypoints. Next, these payload waypoints are used by the swarm waypoint controller to generate individual waypoints for each aircraft; a flight controller for each aircraft moves the aircraft to these individual waypoints. | 12-03-2009 |
20140025238 | System and Method for Multiple Aircraft Lifting a Common Payload - A system and method are provided for controlling a plurality of aircraft to lift a common payload. The system comprises of multiple aircraft tethered to a common payload, where the group of aircraft form a swarm that is controlled by a pilot station. Each aircraft is autonomously stabilized and guided through a swarm avionics unit, which further includes sensor, communication, and processing hardware. At the pilot station, a pilot remotely enters payload destinations, which is processed and communicated to each aircraft. The method for controlling a multi-aircraft lifting system includes of inputting the desired location of the payload, and determining a series of intermediary payload waypoints. Next, these payload waypoints are used by the swarm waypoint controller to generate individual waypoints for each aircraft. A flight controller for each aircraft moves the aircraft to these individual waypoints. | 01-23-2014 |
20150120126 | SYSTEM AND METHOD FOR MULTIPLE VEHICLES MOVING A COMMON PAYLOAD - A system and method are provided for controlling a plurality of vehicles to affect positioning of a common payload. The system comprises of multiple vehicles having positioners to change the location of the common payload, where the group of vehicles form a swarm that is controlled by a driver or pilot station. Each vehicle is autonomously stabilized and guided through a swarm electronics unit, which further includes sensor, communication, and processing hardware. At the driver or pilot station, a system or a person remotely enters payload destinations, which is processed and communicated to each vehicle. The method for controlling a multi-vehicle system includes inputting the desired location of the payload and determining a series of intermediary payload waypoints. Next, these payload waypoints are used by the swarm waypoint controller to generate individual waypoints for each vehicle. A controller for each vehicle moves the vehicle to these individual waypoints. | 04-30-2015 |