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
Semiconductor device
Method for modeling and analyzing linear time invariant systems with time delays
Method for restricting the use of an application program, system for authenticating the user of a measuring apparatus, authentication server, client apparatus and storage medium
JTAG multiplexer with clock/mode input, mode/clock input, and clock output
Uni-directional transient voltage suppressor (TVS)
Reproducible dither-noise injection
Single-stage PFC converter with constant voltage and constant current
  Randomly Featured Patents
Clamping device
Marking tool with wear rims
Uric acid-lowering composition, method and use
Burn-in process of producing data correlating elevation of disk drive head to temperature and method of controlling the elevation of the disk drive head using the data
System for generating constant envelope simultaneous data and ranging waveform with anti-jam properties
Instrument panel with temporary attachment structure
Blow molding device for producing thermoplastic containers
Optical focus adjustment means for projection television apparatus
Glass bonded fiber array and method for the fabrication thereof
Leak detector for an injection moulding machine