Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Gelhausen
Frank Gelhausen, Isernhagen DE
| Patent application number | Description | Published |
|---|---|---|
| 20100295617 | APPARATUS AND METHOD FOR DRIVING AN LED - Here, a driver for an light emitting diode (LED) is provided. Within this driver, several differential pairs of bipolar transistors are employed in an input stage and output stage along with a control loop. Collectively, these components operate together to drive the LED with a low headroom voltage while still achieving high driver performance in terms of edge speed and jitter. | 11-25-2010 |
Ingo Gelhausen, Fuerthen DE
| Patent application number | Description | Published |
|---|---|---|
| 20110290605 | Vibration Damper - A vibration damper includes a cylinder in which a piston fastened to a piston rod executes a translational and a rotational movement relative to the cylinder. The piston is fixed to the piston rod by an axial fastener, and a device for preventing rotation by positive engagement is formed between the piston and the piston rod. | 12-01-2011 |
Paul Gelhausen, Yorktown, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20080258467 | Methods, Systems, and Devices for Energy Generation - The present invention seeks to improve upon existing energy-generation technologies by providing methods, systems, and devices for converting mechanical power into electrical power. More specifically, the present invention relates to fluid-powered generators and methods, systems, and devices for generating power by way of such fluid-powered generators. The present invention includes devices for generating energy comprising fluid turbine generators having variable inlet(s), wherein the fluid velocity, volume, and/or mass of fluid collected by the inlet can be varied to control turbine speed to provide a reasonably steady, continuous, and/or sufficient source of energy over a wide range of conditions presented by natural fluid resources. | 10-23-2008 |
| 20090294573 | Dual-Use Modular Propulsion surveillance Vehicle with Detachable Unmanned Airborne Vehicles - The present invention provides a system for reconnaissance using autonomous unmanned airborne vehicles (UAV). The system comprises a mothership, which is generally a fixed wing fuel tank capable of providing a suitable surface for flight (lift) and one or more elements for attachment of individual UAVs. The system further comprises one or more UAVs that are detachably connected to the mothership, and which are independently controllable for reconnaissance and tracking. The system and its individual parts are reusable and independently controllable, permitting low cost reconnaissance over wide areas of geography. | 12-03-2009 |
Paul A. Gelhausen, Yorktown, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100140416 | Ducted Fans with Flow Control Synthetic Jet Actuators and Methods for Ducted Fan Force and Moment Control - The present invention relates to the field of aerodynamics. More particularly, the present invention relates to manipulating air flow over a surface, such as the surface of a duct of a ducted fan vehicle. By controlling air flow over, at, or around the surface of a duct, the flight of the vehicle can be controlled. One embodiment of the invention provides a vertical take-off and landing (VTOL) ducted-fan vehicle comprising means for producing steady or unsteady blowing at a surface of a duct for producing control forces and moments for controlling flight. The means for unsteady blowing can be provided by synthetic jets and the means for steady blowing can be provided by a pressurized air supply. The synthetic jets can be integrated into the ducted-fan vehicles in numerous ways, including at the surface of the leading and/or trailing edge of the ducts. The synthetic jets can be independently operated to control the flight of the vehicle. A novel use of these inventive flow control concepts is to apply the control asymmetrically to the duct in order to produce an imbalance in forces, thus resulting in a moment or torque, which can be used to control flight. | 06-10-2010 |