Leiss
Anna Elizabeth Leiss, Cambridge GB
Patent application number | Description | Published |
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20120125355 | Transgenic Plants Comprising Constructs Encoding Phosphoenolpyruvate Carboxykinase and/or Pyruvate Orthophosphate Dikinase - The invention provides genetic constructs which comprise a senescence-specific promoter operably linked to at least one coding sequence, which encodes at least one polypeptide having phosphoenolpyruvate carboxykinase (PCK) activity and/or pyruvate orthophosphate dikinase (PPDK) activity. The constructs have the ability to cause, in transgenic plants, remobilisation of nitrogen during leaf senescence, such that nitrogen can be transported from the leaves to other regions of the plants. The invention provides plant cells and plants transformed with such constructs, methods of producing transgenic plants, and methods of increasing the rate of nitrogen remobilisation and growth rate in senescent plants. The invention also provides harvested plant leaves, such as tobacco leaves, that have been transformed with the genetic constructs, and to smoking articles comprising such harvested plant leaves. | 05-24-2012 |
Daniel Leiss, Somerset, PA US
Patent application number | Description | Published |
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20090064948 | Crankcase breather assembly - A breather assembly for ventilation and pressure control within a crankcase of a positive displacement motor or pump. The breather assembly includes an intake/exhaust port through the crankcase with a valve seat for the port on an exterior surface of the crankcase. A flexible valve membrane is positioned over the port on the valve seat on the exterior of the crankcase for flexing outwardly to exhaust air under positive pressure from the crankcase to atmosphere and to close the port when the crankcase pressure is neutral or negative. An irregular surface is provided on the face of the valve membrane facing to and engaging the valve seat and this surface is provided with a texture which permits air to flow over the valve seat and into the port in a controlled quantity when a negative air pressure condition is attained in the crankcase whereby a predetermined small vacuum level may be maintained in the crankcase. A filter is positioned over the membrane whereby air egressing from and ingressing into the crankcase from atmosphere to the port is filtered. | 03-12-2009 |
20150273374 | CENTRIFUGAL SEPARATOR AND METHOD OF SEPARATING LIQUIDS FROM GAS - A centrifugal separator wherein in the gas/liquid to be separated is centrifugally flowed consecutively through multiple adjacent concentric cyclonic chambers and thereby forcing the mixture to also flow up and down through respective chambers causing deceleration along with centrifugal separation for maximum efficient separation of the liquid from the gas. | 10-01-2015 |
Peter J. Leiss, Middletown, PA US
Patent application number | Description | Published |
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20160039281 | VEHICLE FUEL TANK SYSTEM FOR IMPROVED CRASHWORTHINESS - A fuel tank system which has a revised mounting system and a revised location for the fuel system and fuel tanks to improve crashworthiness of the vehicle by reducing the occurrence of tank failure, fuel spillage, fire and/or explosion during and after a collision or similar event, while still providing a sufficient range for the vehicle. The fuel tanks are protected from damage from the side, bottom and between the tanks. The fuel tank mounting system also allows the energy associated with an event to be managed, such as by allowing the fuel tanks to be pushed or moved downwardly and/or laterally by the energy of the impact of a collision or similar event to a position in which the fuel tank is either out of the path of the impact or protected by the chassis or frame of the vehicle. | 02-11-2016 |