Quotables
"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7733242 | System, method and apparatus for manual control of a traffic light An application for a traffic control system includes an enclosure for containing the traffic control system that has an access door with a lock for controlling access to the enclosure through the access door. The traffic control system has an automatic mode of opera... | 06/08/2010 |
| 5294138 | Traffic control cart A traffic control cart includes a rolling wheel assembly, a base fixed on the rolling wheels, a column mounted on the base, an arm pivotally secured on one periphery wall of the column, a light device including at least a green light, a yellow light, and ... | 03/15/1994 |
| 5252969 | Temporary signal system A temporary signal system wherein a pair of signal stands are installed at spaced locations adjacent a traffic restriction area. Each stand has at least red and green lights which light or flash for predetermined time periods to control vehicle traffic pa... | 10/12/1993 |
| 4433324 | Device to promote the movement of buses by allocation of priority of crossing of an intersection controlled by traffic lights Priority is given to the movement of buses at intersections controlled by traffic lights, by lengthening the duration of the green lights on the street on which the bus approaches the intersection, and shortening the duration of the red lights, not only i... | 02/21/1984 |
| 4371863 | Traffic-actuated control systems providing an advance signal to indicate when the direction of traffic will change An equipment is provided in connection with a traffic actuated controller to cut off the traffic actuation to shift the controller to a fixed time basis at a predetermined interval before the direction of traffic will change, and at the same time provide ... | 02/01/1983 |
| 4355295 | Method and device for connecting terminals of a traffic control unit A method of allowing for manual connection of electrical terminals of several separate and distinct electrical devices mounted at a selected location and used jointly to control signals displayed at a traffic intersection, comprises the steps of fixing a ... | 10/19/1982 |
