Pneumatic plunger system
OwnerDavid Tauber, William Philippsoninventors
Life of this patent
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Abstract
A pneumatic plunger system for use in a commercial seine fishing vessel, comprising apparatus for expelling a mixture of forced air and water through a plurality of nozzles that are located along the keel of the vessel. The forced air and water which is ejected through the nozzles creates a wall of air bubbles extending substantially vertically and downward from the keel. Fish swimming between the net and the wall of air bubbles are startled by the air bubbles and are repelled into the net.
Claims12
In a fishing vessel having a keel, and provided with a net which is cast into surrounding water for catching fish, a method for repelling fish into said net, comprising expelling a substantially vertical wall of bubbles from said keel downwardly into said surrounding water, whereby fish swimming between said net and said wall of bubbles are startled and thereby repelled from said wall of bubbles into said net.
In a fishing vessel floating in water and being provided with a keel and a net which is cast into said water for catching fish, a pneumatic plunger system for repelling fish into said net comprised of:
- (a) air compressor means for receiving and compressing intake air to a predetermined pressure,
- (b) a plurality of nozzles disposed in said keel and connected to said air compressor means, and
- (c) means for discharging said compressed intake air from said air compressor means in the form of one or more high pressure air flows through said nozzles, whereby a substantially vertical wall of bubbles is developed in said water beneath said keel such that fish swimming between said net and said wall of bubbles are startled and thereby repelled from said wall of bubbles into said net.
Dependencies are inferred from the claim text.