Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Self-propelled shark-proof cage










Image Number 3 for United States Patent #4166462.

The invention relates to a self-propelled shark-proof cage which is provided with at least one access opening and a propeller mounting frame having pivot means coupling it to the cage so that the propeller mounting frame is pivotal about two axes at right angles to each other, and the propeller mounting frame carries on it an air motor and a propeller. The frame is provided with buoyancy means so that it can be made to be of approximately the same gravity as sea-water, and the air motor is driven by compressed air so that the cage can be propelled through the water, thereby enabling abalone divers to collect abalone without fear of predators and, beacause of less exertion, for longer periods of time.








 
 
  Recently Added Patents
Fingerprinting apparatus, system, and method
Decentralized processing network
Methods and systems for dynamic spectrum arbitrage
System for determining movement properties of a guided vehicle
System and method for displaying relationships between electronically stored information to provide classification suggestions via inclusion
System and method for determining a characterisitic of an object adjacent to a route
Lifting apparatus
  Randomly Featured Patents
Treasure chest
Handle for a percussive tool, or the like
Circuit for fan motor
Capacitive position sensor and sensing methodology
Gas cylinder cart with removable control panel
Polypeptide and its production and use
System and method for providing connectivity between two different networks using different protocols
Heating apparatus, fixing apparatus, and image forming apparatus
Process for purging aluminum and aluminum alloy melts of small quantities of alkali and alkaline earth metals
Knife blade for a scraper tool