Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Traffic control sign










Image Number 3 for United States Patent #6956502.

A traffic control sign is provided which automatically unfolds and displays the message STOP and displays flashing messages SIGNAL OUT and 4 WAY upon power failure to traditional traffic lights. The traffic control sign includes a pair of sign plates hingedly attached by a pair of hinges. An enfolding assembly is utilized to rotatably enfold and electromagnetically hold the pair of sign plates to a folded position upon resumption of power. The traffic control sign is adapted to be mounted to existing cable or a circular pipe component used for related traditional traffic signal fixtures.








 
 
  Recently Added Patents
High-order harmonic device of cavity filter
Inhibitors of bacterial tyrosine kinase and uses thereof
Light emitting device
Measuring apparatus for measuring a physical property of a sample
Single well reservoir characterization apparatus and methods
Parallel processing computer systems with reduced power consumption and methods for providing the same
System and method for providing restrictions on the location of peer subnet manager (SM) instances in an infiniband (IB) network
  Randomly Featured Patents
Diode laser irradiation system for biological tissue stimulation
Showerhead
Positive type radiation-sensitive resin composition
Light-sensitive compounds, light-sensitive mixture, and light-sensitive copying material prepared therefrom
Suspension system for a vehicle
Nail clipper retainer
Strained silicon-channel MOSFET using a damascene gate process
Monoclinic phosphorus formed from vapor in the presence of an alkali metal
Method for controlling a floor heating system
Method for monitoring cracks and critical concentration by using phase angle