Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Harbor radio navigation system










Image Number 6 for United States Patent #4071845.

A radio beacon navigation system wherein buoys placed at predetermined locations in a harbor or channel transmit identification signals. Every buoy is assigned a unique carrier frequency upon which is transmitted a signal capable of identifying the buoy. Each buoy is shown on harbor charts according to the unique properties of its signal. Radio receiving means carried aboard vessels navigating through the harbor or channel include means for determining the identity of the buoy from which signals are received and the direction from which the received signals emanate.








 
 
  Recently Added Patents
Method and system for joint detection of Ethernet part segment protection
System and method for passively identifying encrypted and interactive network sessions
Electrodynamic braking device for a universal motor
Touch display device
Coated tablets
Percutaneous administration device of bisoprolol
Determining a nucleic acid sequence imbalance
  Randomly Featured Patents
Methods of administering a material into a patient for dermal enhancement
Eyeglass and hat connector
Fiber-reinforced composites and method for the production thereof
Motorcycle back rest assembly
Electric motor driven lubrication pump control system and method that accomodates turbomachine windmill operation
Connector EMI shielding structure
Polyolefin blends and their solid state processing
Cell image processor and cell image processing method
Process for producing Fe-B-R based permanent magnet having a corrosion-resistant film
Apparatus and method for automatic conference initiation