...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 |
| 7378946 | Post-trip bus inspection alert system A system and method for alerting responsible personnel to perform a post-trip inspection check for passengers remaining on a bus at the end of a trip by issuing audible and/or visual alerts when the bus is parked and the motor shut off at the end of the trip. The ig... | 05/27/2008 |
| 7172119 | Modular architecture sensing and computing platform A weather resistant modular sensor and computing platform reduces costs and enhances versatility of sensor systems. Rapidly evolving electronic technology results in hyper-obsolescence wherein sensor systems that are state of the art technology when designed, fall b... | 02/06/2007 |
| 7158014 | Post-trip bus inspection alert system A system and method for alerting responsible personnel to perform a post-trip inspection check for passengers remaining on a bus at the end of a trip by issuing audible and/or visual alerts when the bus is parked and the motor shut off at the end of the trip. The ig... | 01/02/2007 |
| 7088228 | Safety warning light device for vehicle A warning light device includes a light member, and a coupling device for coupling the light member to the accelerator pedal of the vehicle, to actuate the light member to generate warning light when the accelerator pedal of the vehicle is released by the drivers, i... | 08/08/2006 |
| 7026923 | Vehicle signalization retrofit kit The vehicle signalization retrofit kit according to the present invention comprises a limit switch assembly wherein a pair of limit switches are pre-wired with a colour coded wiring system and connectors, and are adjustably affixed to a post that is easily mountable... | 04/11/2006 |
| 6809654 | Message board with work lights for vehicles A deployable message display and work light structure for attachment to a vehicle. Said structure comprises an anchor assembly attachable to the front or rear end of a vehicle, a message display panel support frame having parallel arms hingedly secured at their lowe... | 10/26/2004 |
| 6337623 | Elevated warning system for vehicles A supplemental warning apparatus for school buses which is mounted on the roof of the bus in a vertical plane spaced above the usual warning sign which is carried on the side of the bus, the warning apparatus including a display member carried by a base w... | 01/08/2002 |
| 6067012 | Apparatus for concealing emergency vehicle warning devices This apparatus conceals an emergency warning device, which may be in the form of an array of laterally spaced lights and/or sirens, mounted on an emergency vehicle below a vertically movable roof section in an opening formed in the roof of the emergency v... | 05/23/2000 |
| 6037866 | Hazard device for a vehicle The present invention relates to a hazard device for a vehicle in which an outwardly rotatable vertical panel attaches to the rear of the vehicle. The vertical panel can extend the entire height of the vehicle. A safety panel attaches to the vertical pane... | 03/14/2000 |
| 5995517 | Multiplexed digital signal receiving device capable of miniaturizing the configuration of a signal receiving portion An FM multiplexed broadcasting signal received by an antenna and FM-demodulated by an FM tuner portion is demodulated by a demodulation LSI into a digital signal corresponding to packet data. The digital signal is successively supplied by every packet to ... | 11/30/1999 |
| 5812052 | Switch operated actuating device An actuating device for operating a safety unit mounted on a vehicle which includes a motor having an output shaft, a movable support for supporting the safety unit and moving it between its retracted and extended positions, and a non-mechanical switch ar... | 09/22/1998 |
| 5796331 | Illuminated pivotal sign assembly A sign (10) includes a sign housing (16) having a pair of extension arms (102) extending therefrom for mounting purposes. The sign housing (16) includes light elements (28) to illuminate at least a portion of the sign (10). The sign housing (16) and exten... | 08/18/1998 |
| 5696484 | Emergency turn signal lamp device for a vehicle An emergency signal lamp device for a vehicle, includes a lamp door disposed on a portion of the vehicle, an emergency signal lamp disposed behind the lamp door and being elastically movable from the vehicle, and a latch mechanism for moving the lamp door... | 12/09/1997 |
| 5408232 | Traffic signal device with interchangeable lamps A traffic signal device having a single, continuously-illuminating lamp and several plain reflectors constructed by optical thin film technique to receive the light beam projected from the lamp and respectively reflecting light components of pre-determine... | 04/18/1995 |
| 5406251 | Air operated pivoting safety apparatus for vehicle A pivoting safety apparatus is adapted for mounting on a motor vehicle. The safety apparatus comprises a housing for mounting on the motor vehicle and a safety device pivotally coupled with the housing for movement about an axis between a retracted positi... | 04/11/1995 |
| 5406250 | Apparatus for operating a school bus safety device A stop sign and/or crossing arm deployment system is secured to a side and/or the front, respectively of a school bus for deploying a safety stop sign and/or crossing arm between a retracted normal state and a deployed safety state. A dual power circuit i... | 04/11/1995 |
| 5381135 | Vehicle deceleration alerting device A yellow warning light indicator that is located at the rear of a lead vehicle to be visible by a tailing vehicle and wherein the yellow warning light is lit when the driver of the lead vehicle releases his foot from the accelerator pedal so as to warn th... | 01/10/1995 |
| 5357239 | Actuating device for bus safety gate and stop sign An actuating device (10) for operating a safety unit (12) mounts on a vehicle (14) and moves between a retracted position adjacent the vehicle and an extended position extending outwardly from the vehicle. A housing (16) is fixedly mounted on the vehicle ... | 10/18/1994 |
| 5305704 | Automobile locator A new and improved automobile locator apparatus includes a base member adapted to fit onto a top edge of an automobile window, an identifier element, and an adjustable assembly, connected between the base member and the identifier element, for orienting t... | 04/26/1994 |
| 5166663 | Self contained air operated pivoting sign device for vehicle An electrically operated, air-driven pivotal sign device includes a housing and a sign assembly pivotally mounted to the housing. Within the housing, an electrically driven air compressor is pneumatically coupled through tubing and a three-way, electrical... | 11/24/1992 |
| 5038136 | Traffic control device for school buses A traffic control device for use on school buses which locates the traffic control sign in the normal field of view of oncoming traffic, yet is robust, can be extended and retracted automatically and rapidly, and substantially does not suffer wind, accele... | 08/06/1991 |
| 5036307 | Weather resistant control system for school bus safety device Apparatus for activating a stop sign on a bus from a retracted to an extended position and vice versa. The apparatus includes a motor coupled, via a rotary-to-reciprocating motion translator, to the stop sign. A rotor is connected to the motor and forms a... | 07/30/1991 |
| 4983949 | Safety unit actuating device An actuating device for use in moving a school bus safety unit, such as a stop sign or crossing arm, between a retracted position adjacent the school bus, and an extended position projecting outwardly from the bus. The actuating device includes a drive mo... | 01/08/1991 |
| 4956630 | Safety unit actuating device An improved actuating device for school bus safety unit, such as crossing arms and the like, which includes an arrangement for driving and controlling the crossing arm in a continuous predetermined arcuate path of movement, with the safety device being mo... | 09/11/1990 |
| 4956632 | Multiple purpose electromechanical vehicle signal device A moving signal light for both stationary or traveling vehicles and equipment. The unit can be mounted selectively either inside or outside the vehicle and is controlled either automatically in response to a collision or by the drivers action to provide a... | 09/11/1990 |
| 4871995 | Vehicle rear window brake application activated sign raiser An electric power driven sign raiser mounted inside a vehicle bvelow and inside a rear window. The unit is electrically conneced to be activated when the brake light come on with actuation of the brakes. Upon actuation an electromagnet and an electric mot... | 10/03/1989 |
| 4816804 | School bus stop sign control apparatus The apparatus is provided with a unidirectional motor operatively coupled to the hinged sign through an eccentric drive by a link arm which incorporates a pre-loaded helical compression spring to prevent damage to the link arm should an attempt be made to... | 03/28/1989 |
| 4766413 | School bus stop sign control apparatus Control apparatus for a hinged stop sign mounted on the side of a school bus to cause the sign to swing out to an outstretched position when the bus door is opened to load or unload passengers and to return the sign to its retracted position when the door... | 08/23/1988 |
| 4339744 | School bus stop sign An electrically powered school bus signapparatus mounts on the school bus body. A unidirectional DC motor and associated linkage and limit switch controls are used to deploy and retract the stop sign blade.... | 07/13/1982 |
| 4320385 | Rotating warning lamp A rotating lamp comprising a lamp base and an electric motor mounted on the lamp base. The electric motor drives a hollow shaft on which the lamps are mounted. A conductive rod extends through the shaft and is electrically isolated from the shaft. The lam... | 03/16/1982 |
| 4138668 | School bus stop sign An electrically-powered school bus stop sign apparatus mounts either partially recessed within the exterior panel of the body of the school bus adjacent the driver or, alternatively, on the exterior panel. A DC motor and associated arm/linkage mechanical ... | 02/06/1979 |