Shemwell
David M. Shemwell, Newcastle, WA US
Patent application number | Description | Published |
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20090284961 | LED dazzler - An apparatus produces a “dazzling” effect: disorientation and temporary and fully reversible blindness in subjects for the purpose of threat deterrence in both civilian law enforcement and military engagements without the use of lasers. The apparatus is comprised of a plurality of light emitting diodes (LEDs) capable of intense illumination. Light emitted by each LED is further pulsed and focused by reflective optics to produce a pulsed beam of sufficient intensity that the combined effect of the beams from the LEDs induces dazzling in subject viewers in the target range. Further included in or ancillary to the invention are a power source for powering the LEDs and a signal source and controller for controlling their illumination and pulsing. Embodiments of the invention include riot shield, hand held and vehicle-mounted dazzlers. | 11-19-2009 |
20100107859 | Remote explosion of improvised explosive devices - A method and apparatus triggers motion triggered improvised explosive devices (IEDs) from a distance outside the device's zone of destruction. IEDs having infrared motion detection trigger mechanisms are detonated by passing remotely generated laser beams over the area within which the IED is located. The moving reflected background scattering of light from the passing laser beams as well as possible direct passing laser illumination of the IED infrared motion detector activate the IED trigger mechanism, causing the IED to detonate. Operation of the invention is remote from the destruction zone of the IED, thereby preserving personnel and materiel. | 05-06-2010 |
David M. Shemwell, Newcaslte, WA US
Patent application number | Description | Published |
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20090284957 | LED dazzler shield - A shield produces a “dazzling” effect: disorientation and temporary and fully reversible blindness in subjects for the purpose of threat deterrence. The apparatus is comprised of a plurality of light emitting diodes (LEDs) capable of intense illumination. Light emitted by each LED is further pulsed and focused by reflective optics to produce a dazzling effect. The shield further provides ballistic protection, chemical or electrical crowd control functionality, safety-glass breaking capability, optically propagated communications and an arm strap to further secure the shield. | 11-19-2009 |
David Mark Shemwell, Newcastle, WA US
Patent application number | Description | Published |
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20110199762 | Light Emitting Diode Based PAPI Design Incorporating Linear Diode Arrays and Cylindrical Optics - This invention presents a method for overcoming limitation in brightness and heating effects for LED based Precision Approach Path Indicators. This method relies on the use of linear arrays of LED's and cylindrical optics | 08-18-2011 |
20130234866 | Method for optically mixing visible and infrared lights for airfield landing aids and projecting through a shared aperture - This invention presents a method for mixing visible and infrared light from LED sources so light can be projected for use as landing field approach aids, such as Precision Approach Path Indicators. This method relies on the use of linear arrays of LED's and cylindrical optics. | 09-12-2013 |
Jessica Lauren Shemwell, Drummonds, TN US
Patent application number | Description | Published |
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20150094778 | HAMMER TOE IMPLANT AND METHOD - An implant includes an elongate threaded portion defining a first central longitudinal axis and a groove. The groove defines a second longitudinal central axis that extends in the same direction as the first central longitudinal axis. A blade portion extends from the elongate threaded portion and has a taper terminating at a point. | 04-02-2015 |