GM GLOBALTECHNOLOGY OPERATIONS, INC.
|GM GLOBALTECHNOLOGY OPERATIONS, INC. Patent applications|
|Patent application number||Title||Published|
|20110039190||CONTINUOUS POROUS FLOW DISTRIBUTORS FOR A FUEL CELL - A fuel cell plate for a fuel cell assembly is provided that includes a pair of unipolar plates including a flow field, an inlet flow distributor, and an outlet flow distributor, wherein the flow distributors are produced from a porous material to control liquid water throughout the reactant flow path.||02-17-2011|
|20100190011||REMOTE ACTIVATION OF THERMO-REVERSIBLE DRY ADHESIVES - A thermo-reversible dry adhesive, having shape memory polymer characteristics, introduces one or more particles of micro- or nano-particles to at least one layer of the at least one layer of shape memory polymer. These particles may be remotely activated to induct heat sufficient to transform the dry adhesive material from its temporary shape to its permanent shape in the absence of load, which allows the dry adhesive to be reversibly coupled to one or more substrates, wherein the degree of adhesion is greater when the dry adhesive is in the temporary shape than in the permanent shape.||07-29-2010|
|20090108673||METHOD FOR DETERMINING A VOLTAGE LEVEL ACROSS AN ELECTRIC CIRCUIT OF A POWERTRAIN - A method for determining a voltage level across an electrical circuit of a powertrain includes measuring a plurality of voltage levels and utilizing a comparison test between at least two voltage levels of the plurality of voltage levels to determine the circuit voltage level.||04-30-2009|
|20090107958||Torch and Contact Tip for Gas Metal Arc Welding - A torch for gas metal arc welding includes a torch housing and a contact tip mounted on the housing and having an electrode bore through which electrode wire is fed. A nozzle mounted on the housing surrounds the contact tip to define an annular gas passage between the contact tip and the inside of the nozzle. A shielding gas inlet communicates a shielding gas into the annular gas passage so that the shielding gas flows out of the nozzle. A plurality of auxiliary flow passages are provided in the contact tip, and have open ends arranged around the electrode bore. The auxiliary flow passages communicate with the gas inlet and surround the electrode wire with an auxiliary flow of shielding gas that is closer to the electrode wire than the shielding gas flow that is provided through the annular gas passage between the contact tip and the nozzle.||04-30-2009|
|20090023541||MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are clutches and brakes.||01-22-2009|
Patent applications by GM GLOBALTECHNOLOGY OPERATIONS, INC.