Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7032858 | Systems and methods for identifying targets among non-targets with a plurality of sensor vehicles A plurality of sensor vehicles collect imaging data from an assigned location of a target region having targets and non-targets. The imaging data may be combined based on its location and the combined data is matched to a threat object map to identify the actual tar... | 04/25/2006 |
| 6967539 | Low phase-noise local oscillator and method An oscillator to generate a low phase-noise reference signal at an oscillation frequency includes a frequency generator to generate the reference signal responsive to a control signal, and a delay element made of a high-temperature superconductor material. The delay... | 11/22/2005 |
| 6791852 | Method for detecting and identifying shorted thyristors A method is provided for determining a shorted thyristor cell in a bridge that supplies a load from a source, the bridge including a plurality of the thyristor cells. The method includes the step of sequentially gating each of the cells to a conducting state, so tha... | 09/14/2004 |
| 6766514 | Compiler having real-time tuning, I/O scaling and process test capability A compiler and compiling method providing modification of a value of a variable at run-time of a computer program wherein additional space in memory is allocated for variable modification parameters, assembly or object code is added upon compilation of the computer ... | 07/20/2004 |
| 6713898 | Internal reactor thyristor stack A configuration of a thyristor stack is provided. The stack includes thyristors, electrically conductive bars, and reactors that are mounted around the electrically conductive. Heat sinks may be included in the thyristor stack to assist in heat dissipation, although... | 03/30/2004 |
| 6321143 | Control system and method for a hybrid electric vehicle A vehicle system controller (20) is presented for a LSR parallel hybrid electric vehicle having an engine (10), a motor (12), wheels (14), a transmission (16) and a battery (18). The vehicle system controller (20) has a state machine having a plurality of... | 11/20/2001 |
| 6239997 | System for connecting and synchronizing a supplemental power source to a power grid A system (10) and method (100) for connecting and synchronizing a supplemental power supply (10) and a power grid. The present invention detects current feedback signals ia and ib and grid phase voltage input signals Ua.sub..sub... | 05/29/2001 |
| 6239575 | Induction motor power/torque clamping for electric vehicle performance An induction motor control system (10) for electric vehicles having a DC power supply (12), an inverter (14), an induction motor (16), and a clamping unit (26). The clamping unit (26) applies a clamping value iq_clamp to a real torque current command i | 05/29/2001 |
