Patent application number | Description | Published |
20130199595 | SOLAR CONCENTRATOR COOLING BY VORTEX GAS CIRCULATION - A convective method is employed to cool a solar concentrator device. The convective method employs formation of a vortex gas circulation inside an enclosure of the solar concentrator device, which is bounded by at least one light-path altering component, sidewalls, and a back panel. Optionally, a heat sink assembly can be provided within the enclosure. Internal convention through the vortex gas circulation transfers the heat generated at a photovoltaic cell to all surfaces of the solar concentrator device to facilitate radiative and/or convective cooling at the outside surfaces of the enclosure. | 08-08-2013 |
20140069490 | Lead Frame Package for Solar Concentrators - Techniques for providing high-capacity, re-workable connections in concentrated photovoltaic devices are provided. In one aspect, a lead frame package for a photovoltaic device is provided that includes a beam shield; and one or more lead frame connectors affixed to the beam shield, wherein the lead frame connectors are configured to provide connection to the photovoltaic device when the photovoltaic device is assembled to the lead frame package. A photovoltaic apparatus is also provided that includes a lead frame package assembled to a photovoltaic device. The lead frame package includes a beam shield and one or more lead frame connectors affixed to the beam shield, wherein the lead frame connectors are configured to provide connection to the photovoltaic device. | 03-13-2014 |
20140069491 | Interposer Connector for High Power Solar Concentrators - In one aspect, an interposer assembly for housing a photovoltaic device includes a frame, formed from an electrically insulating material, having a center opening with a shape/size complementary to a shape/size of the photovoltaic device thus permitting the photovoltaic device to fit within the center opening in the frame when the photovoltaic device is housed in the assembly; a beam shield on the frame having a cup-shaped inner cavity to aid in routing of light to the photovoltaic device, wherein a side of the beam shield facing the frame has one or more recesses present therein; and one or more interposer connectors positioned between the frame and the beam shield such that the interposer connectors fit within the recesses in the beam shield, and wherein a portion of each of the interposer connectors extends into the center opening of the frame. | 03-13-2014 |
20140069501 | Cooling System for High Performance Solar Concentrators - Techniques for cooling concentrating solar collector systems are provided. In one aspect, an apparatus for cooling a photovoltaic cell includes a heat exchanger having a metal plate with a bend therein that positions a first surface of the metal plate at an angle of from about 100 degrees to about 150 degrees relative to a second surface of the metal plate, and a plurality of fins attached to a side of the metal plate opposite the first surface and the second surface; a vapor chamber extending along the first surface and the second surface of the metal plate, crossing the bend; and a cladding material between the vapor chamber and the heat exchanger, wherein the cladding material is configured to thermally couple the vapor chamber to the heat exchanger. A photovoltaic system and method for operating a photovoltaic system are also provided. | 03-13-2014 |
Patent application number | Description | Published |
20100106644 | System and Method for Authorizing Transactions Via Mobile Devices - A system and method for authorizing transfers via mobile devices are provided. The system includes a first mobile device and a server. The first mobile device executes a transfer authorization application that allows a user to enter transfer information for a transfer. In response, the transfer authorization application generates and communicates a transfer request for the transfer. The transfer information includes an identifier associated with a recipient and a transfer amount. The server has a data store storing account details for a first account of the user. The server receives the transfer request from the mobile device, verifies that the user has resources in the first account for the transfer request, and sends a notification to a second mobile device associated with the identifier of the recipient. The server then transfers the transfer value from the first account to a second account of the recipient. | 04-29-2010 |
20150228039 | SYSTEM AND METHOD FOR DIGITAL OR ELECTRONIC POWER OF ATTORNEY SERVICE - System and method to process a digital power of attorney (DPOA), the method including: receiving a request from the grantor to create a DPOA to name a predetermined grantee; transmitting the request to an authentication server in order to authenticate the request; receive an authentication result from the authentication server; and if the authentication server is positive, issuing the DPOA to the predetermined grantee. The method may further include receiving a request from a purported grantee or from a digital service provider to exercise the DPOA; authenticating, by the authentication server, an identity of the purported grantee; if the purported grantee is the predetermined grantee, verifying a condition of usage of the DPOA; and if the condition is verified, granting a power specified by the DPOA. | 08-13-2015 |
20150229477 | SYSTEM AND METHOD FOR REMOTE ACCESS, REMOTE DIGITAL SIGNATURE - System and method to digitally validate a document, the method including: receiving, by a secure development platform (SDP), a security information from an end user, the SDP comprising an SDP processor coupled to a secure SDP memory; exchanging a security token with a user device based upon the security information; receiving, from the user device, a request for a digital certificate; managing and storing public/private key pairs; transmitting, to the PKI service processor, the request for a digital certificate; if information in the request for a digital certificate is correct: creating the digital certificate; and receiving the digital certificate from the PKI service processor; and storing the digital certificate in the secure SDP memory, the secure SDP memory not directly accessible by the user device, the SDP processor configured to request a signature generation by use of the private key associated with the digital certificate, the SDP processor configured to request a validation by use of the digital certificate. | 08-13-2015 |
20150317493 | PLATFORM TO BUILD SECURE MOBILE COLLABORATIVE APPLICATIONS USING DYNAMIC PRESENTATION AND DATA CONFIGURATIONS - System and method to provide access to protected data for a communication terminal, the system including: a publisher database configured to store protected data in encrypted form; a first server coupled to the publisher database; a second server coupled to the first server, the second server configured to provide a cryptographically strong authentication of access to the protected data; an interface to a first secure channel, between the first server and the communication terminal; and an interface to a second secure channel, between the first server and a customer application, wherein the first server is configured to exchange protected data with the communication terminal via the first secure channel, and to exchange protected data with the customer application via the second secure channel. | 11-05-2015 |
Patent application number | Description | Published |
20120291435 | DOUBLE PINCH CRITERION FOR OPTIMIZATION OF REGENERATIVE RANKINE CYCLES - Systems and methods are disclosed herein that generally involve a double pinch criterion for optimization of regenerative Rankine cycles. In some embodiments, operating variables such as bleed extraction pressure and bleed flow rate are selected such that a double pinch is obtained in a feedwater heater, thereby improving the efficiency of the Rankine cycle. In particular, a first pinch point is obtained at the onset of condensation of the bleed and a second pinch point is obtained at the exit of the bleed from the feedwater heater. The minimal approach temperature at the first pinch point can be approximately equal to the minimal approach temperature at the second pinch point. Systems that employ regenerative Rankine cycles, methods of operating such systems, and methods of optimizing the operation of such systems are disclosed herein in connection with the double pinch criterion. | 11-22-2012 |
20150083032 | Combustion System - Combustion system. The system includes a combustor generating a combustion gas and a splitter for receiving the combustion gas and dividing the combustion gas into first and second gas streams. A temperature controller receives the first gas stream, mixes it with recycled gas and introduces it into a heat recovery steam generator at a desired temperature. A mixer receives the second gas stream, mixes it with recycled gas and introduces it into the heat recovery steam generator. The cool gas that exits the heat recovery steam generator forms the recycled gas. A suitable combustor is an oxy-coal combustor. | 03-26-2015 |
20150292365 | Double Pinch Criterion For Optimization Of Regenerative Rankine Cycles - Systems and methods axe disclosed herein that generally involve a double pinch criterion for optimization of regenerative Rankine cycles. In some embodiments, operating variables such as bleed extraction pressure and bleed flow rate are selected such that a double pinch is obtained in a feedwater heater, thereby improving the efficiency of the Rankine cycle. In particular, a first pinch point is obtained at the onset of condensation of the bleed and a second pinch point is obtained at the exit of the bleed from the feedwater heater. The minimal approach temperature at the first pinch point can be approximately equal to the minimal approach temperature at the second pinch point. Systems that employ regenerative Rankine cycles, methods of operating such systems, and methods of optimizing the operation of such systems are disclosed herein in connection with the double pinch criterion. | 10-15-2015 |