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| Number | Title | Issue Date |
| 7823783 | Light pipe illumination system and method A system and method is provided for illuminating a subject using a light pipe that transmits light from a source, such as an LED ring illuminator to an outlet that directs the light appropriately as either bright field illumination, dark field illumination or both. ... | 11/02/2010 |
| 7604174 | Method and apparatus for providing omnidirectional lighting in a scanning device A system and method is provided for selectively controlling the illumination, and particularly dark field illumination, applied to a symbol to be decoded, and for determining a suitable or optimized level of lighting for decoding the symbol. A ring-shaped illuminato... | 10/20/2009 |
| 7228167 | Method and apparatus for detecting vagus nerve stimulation A method and apparatus for monitoring the application of a vagus nerve stimulation signal includes a detection circuit having an amplifier, a filter, and a signal prolongation circuit. The signal prolongation circuit rectifies a detected vagus nerve signal and provi... | 06/05/2007 |
| 7216526 | Method and apparatus for measuring vane wear in a sliding vane rotary pump The amount of wear on the vanes of a sliding vane rotary pump is determined by inserting a wear inspection dip stick into a wear inspection port providing in a housing of the sliding vane rotary pump. The wear dipstick includes one or more mark providing an indicati... | 05/15/2007 |
| 7025157 | Pallet truck tiller arm with angle detector for speed select A motorized pallet truck includes an angular indicator on the steering arm mechanism providing an internal controller with an angular position of the steering arm or tiller. The controller applies a brake when the tiller is in either of a substantially vertical or s... | 04/11/2006 |
