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
Bioactive agent-loaded heart-targeting nanoparticles
Integrated circuit packaging system with coupling features and method of manufacture thereof
Crystalline form of (R)-7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide hydrochloride monohydrate
Electrical connector
Cross-linkable compositions
Chair
Escalating data backup protection in response to a failure in a cluster of nodes
  Randomly Featured Patents
Lifting device with movable lifting columns
Ultra-broadband impedance matched electrically small self-complementary signal radiating structures with impedance-inverting feed for complementary pairs using thin wire elements
3-fold type folding collapsible golf cart
Binder
Docking handle
Building barrier system and associated method
Belt tensioner and method of making the same
Nozzle assembly for an inkjet printhead
Medical injector
Heparanase specific molecular probes and their use in research and medical applications