Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8138941 | LED warning light A compact warning light employs LED lamps as a light source and has a lighthead configured for insertion into the reflector shells of a motor vehicle such as a sedan or SUV. The lighthead has a base and cover which define a sealed interior space surrounding the LED ... | 03/20/2012 |
| 7959322 | Optical system for LED array An optical system for an LED array includes a trough reflector in combination with an elongated lens. The reflector and lens include distinct regions dedicated to particular zones of light emanating from the LED array. The reflector includes lower, upper and end por... | 06/14/2011 |
| 7854531 | Bridge seal for a warning light assembly The disclosed bridge seal includes a substantially rigid bridge component and flexible gutter seal arranged to span the openings between adjacent housing modules of a modular warning light assembly such as a lightbar. The bridge seal physically connects the adjacent... | 12/21/2010 |
| 7821380 | Compact warning light A warning light comprising a base member, a dome removeably connected to the base member, and at least one light module having a top and bottom surface positioned within the dome with the top surface being positioned against the inside of the top surface of said dom... | 10/26/2010 |
| 7804420 | Light assembly with shielding device and visibility window The present disclosure relates to an housing that reduces obstruction of the vehicle operator's ability to see through the upper portion of the windshield. Rather than a light shield constructed entirely of a opaque plastic, an interior mounted warning light assembl... | 09/28/2010 |
| D624449 | Warning light and flange | 09/28/2010 |
| D622895 | PAR36 light | 08/31/2010 |
| D616780 | Warning light and flange | 06/01/2010 |
| 7712931 | Sweep collimator An optical element is configured for use in conjunction with a directional light source such as an LED to form an illuminator. The optical element includes a light entry surface, a reflector and an emission surface. Each of the light entry, reflector and emission su... | 05/11/2010 |
| 7710253 | LED aviation warning light with fault detection An embodiment of an LED warning light includes a plurality of LED banks, each including a series of light emitting diodes. The LED warning light monitors an operational parameter of each LED bank to detect failure of an LED and produce a fault indication. The LED wa... | 05/04/2010 |
| D614521 | Warning light | 04/27/2010 |
| 7683772 | Integrated LED warning and vehicle lamp An integrated LED warning and vehicle lamp has a base configured to replace an existing vehicle lamp by reception into the lamp's reflector shell. The integrated warning and vehicle lamp includes first and second arrays of LEDs arranged on a support projecting from ... | 03/23/2010 |
| D610931 | Warning light with flange | 03/02/2010 |
| 7655875 | Lever switch A lever operated switch employs an actuating surface and a plurality of tactile switches to generate electrical states corresponding to distinct angular orientations of the lever. The lever extends from a cam having an actuating surface configured to change the stat... | 02/02/2010 |
| D608674 | Lightbar | 01/26/2010 |
| D603740 | Lightbar modules | 11/10/2009 |
| 7611270 | Lighthead mounting structure A lighthead mounting structure provides both precise alignment of a lighthead and an effective heat transfer path away from heat generating components of the lighthead. Cooperating aluminum brackets are configured to lock together and overlap to provide an effective... | 11/03/2009 |
| 7611269 | Snap bracket locking device A light bar snap bracket assembly includes an elongated rail member, multiple light modules, multiple snap brackets, and multiple locking devices. The light modules are disposed within the rail member channel in a line of light modules extending longitudinally from ... | 11/03/2009 |
| D595172 | Lens and frame for warning lights | 06/30/2009 |
| D593428 | Lightbar modules | 06/02/2009 |
| D591188 | Lens and frame for a warning light | 04/28/2009 |
| D591187 | Lens and frame for a warning light | 04/28/2009 |
| 7520650 | Side-emitting collimator Illumination configurations employ optical elements configured to organize divergent light from an LED light source into collimated beams having a direction perpendicular to an optical axis of the LED. Alternative optical elements organize light from a row of LEDs i... | 04/21/2009 |
| 7517120 | Mounting foot assembly for lightbar A mounting foot assembly including a base member with a front wall having a front surface and a foot member with a rear wall having a rear surface. The foot member is adjustably secured to the base member with the rear surface of the rear wall being in facing relati... | 04/14/2009 |
| D589836 | Lens and frame for a warning light | 04/07/2009 |
| D589835 | Lens and frame for a warning light | 04/07/2009 |
| D589834 | Warning light | 04/07/2009 |
| D587155 | Rack mounted warning light | 02/24/2009 |
| D584180 | Lens and frame for warning lights | 01/06/2009 |
| D583695 | Dome for a rectangular beacon | 12/30/2008 |
| D579370 | Warning light | 10/28/2008 |
| 7429917 | LED aviation warning light with fault detection An embodiment of an LED warning light includes a plurality of LED banks, each including a series of light emitting diodes. LED failure in one or more banks can result in a warning light that appears to be functional, but may not meet relevant standards for light pro... | 09/30/2008 |
| 7404658 | Light bar snap bracket assembly A light bar snap bracket assembly includes an elongated rail member, multiple light modules, and multiple snap brackets. The light modules are disposed within the rail member channel in a line of light modules extending longitudinally from a first light module dispo... | 07/29/2008 |
| 7158019 | Integrated LED warning and vehicle lamp An integrated LED warning and vehicle lamp according to aspects of the present invention has a base configured to directly replace an existing vehicle lamp by reception into the lamp's reflector shell. The integrated warning and vehicle lamp includes a first radial ... | 01/02/2007 |
| 7118261 | White position taillight for aircraft An aircraft position light employs selected colored LEDs to produce a white appearing warning light with a reduced light component in the amplification spectrum of night vision imaging equipment. A combination of amber and cyan LEDs are selected to produce approxima... | 10/10/2006 |
| 7116294 | LED driver circuits Several driver circuits for energizing series arrays of LEDs are disclosed. The LED driver circuits incorporate programmable microcontrollers and switching regulators in circuits that permit precise control of current applied to the series array of LEDs. One driver ... | 10/03/2006 |
| 7083313 | Side-emitting collimator A side-emitting collimator employs a combination of refraction and internal reflection to organize light from a light source into oppositely directed collimated beams. A light source chamber over the light source is defined by substantially cylindrical and aspheric ... | 08/01/2006 |
| 7079041 | LED aircraft anticollision beacon An exemplary aircraft anticollision beacon is constructed around a faceted aluminum support cylinder and base. The support cylinder has an outside surface with ten vertically oriented substantially planar faces. An array of LEDs is mounted in thermally conductive re... | 07/18/2006 |
| 7008079 | Composite reflecting surface for linear LED array A composite reflecting surface for a linear LED array incorporates a truncated circular parabolic reflector surrounding each LED and a trough axially above the circular parabolic reflectors defined between parallel longitudinal reflecting surfaces. The short circula... | 03/07/2006 |
| RE38795 | Pattern selection method and apparatus The duration of variations in the potential applied to a single electrical contact, when compared to a reference potential, are measured and employed to command either incrementing or decrementing of an address. The addresses are associated with a table of instructi... | 09/13/2005 |
