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
Apparatus and method to reduce noise in magnetic resonance imaging systems
Powder pulverising device
In-store marketing sign
Method and apparatus for transcoding and transrating in distributed video systems
Vehicle speed verification system and method
System and method of creating and providing SMS http tagging
Aqueous composition with agents to inhibit water evaporation
  Randomly Featured Patents
Centrifuges
Massager
Slider for reclosable plastic bag
Fabric-backplane enterprise servers with VNICs and VLANs
High programming efficiency MRAM cell structure
Bone replacement materials utilizing bioabsorbable liquid polymers
Kidney clamp
Process for treating waste water of flue gas desulfurization
Circuit for saving battery for use in a radio paging receiver and method thereof
Client and program for improving three-dimensional air excursion and method thereof