A safe and quick gas operated syringe that pierces the skull and brain of afish includesa hollow syringe in which a high pressured gas can be dispatched. The presentinvention places the end stop of the syringe perpendicular on to the skin orscales of thefish in which the brain is located. The needle is retained inside the syringevia a springand piston until the high pressure valve actuator induced gas forces theneedle out ofthe syringe and into the brain of the fish. A high pressure gas is expelledout of the endand sides of the needle causing complete brain destruction and immediate deathto thefish. A sealed gas cartridge is attached to an actuator which instantlypresentspressured gas into the syringe cylinder which plunges the piston with attachedneedleto the end stop of the syringe . The needle protrudes past the end stop of thesyringe ofwhich touches the fish head over top of the cranial area and penetrates thefish brain.The needle is the means in which high pressure gas is introduced to the brainmatter ofthe fish.The syringe uses a trigger exhaust valve to rapidly deploy highpressure gas tocylinder, piston, and through the needle into the fish brain andsimultaneously expelsthe high pressure gas from the syringe into the brain causing a quick andpainlessdestruction of the fish brain.Once the trigger is released the gas expelled through the needle and syringecylinderno longer has pressure to compress the return spring and the needle returnsinto thesyringe to the rest stop for safety and is ready for the next deployment.Thehighpressure cylinder can be easily installed or removed and can be utilized forseveralcycles with the use of the quick valve assembly.The present invention once placed on the brain area of the fish with the endstop willquickly and instantly upon activation of the device kill the fish.A piston shall be thick enough on the side walls in order to maintain thestraight and true travel of the needle out of the cylinder and equally trueinto the fish.A piston shall have a cavity open from the top surface of the piston to thebottom surface of the piston allowing high pressure gas to flow through theattachedhollow needle.A piston with a centred hollow needle on the down stroke side is similar indiameter to the interior diameter of the syringe and maintains a seal allowingfor a buildup of pressure against the piston causing an unrestricted sliding motioninside thesyringe cylinder.A high pressure cylinder is attached to a quick flow valve via an air tightseatand is attached to the syringe via an air tight seat. All discharge from theactuator entersthe syringe cylinder and push's the piston to the end stop of the syringecylinder.The outer surface of the syringe end stop is pressed against the fish cranialarea allowing the positioning of needle attached to the piston to penetratethe brain ofthe fish and expel its pressured gas upon activation.A needle that is long enough to penetrate the brain of the fish will expel theremaining high pressure gas from the downward side of the high pressure valveand outof several side ports in the needle to destroy the brain immediately.A spring on the down stroke side of the piston will compress upon theactivation of the high pressure valve from high pressure pushing on the upside of thepiston. Once the piston is fully traveled down to the end stop of the syringetherelease of pressure through the needle will allow the piston to return travelvia the compressed spring until the spring ceases to be compressed and thepistonpositions itself at the rest stop.Fish have been killed in various ways over the years:(i) Once a fish is caught for keeps, it is left out of the water to suffocateto death.(ii) Once a fish is caught for keeps , it has its gills sliced separatingoxygen and bloodsupply suffocating the fish to death.(iii) Once a fish is caught for keeps, it has its head cut from the top downcausing spinalcord separation from the brain and resulting in death to the fish.(iv) Once the fish is caught for keeps, it has its skull crushed by a club orother bluntobject causing death to the fish.(v) Once the fish is caught for keeps, it has a steel cylindrical objectforced into andpenetrating the brain, ultimately killing the fish.meat. The present invention allows for less time worrying about killing thefish and moretime enjoying the art of fishing.Ultimately the present invention is the least offensive way to kill a fish onahumanitarian perspective.The forgoing object and summary provides only a brief introduction to thepresentinvention. To fully appreciate these and other objects of the presentinvention as well asthe invention itself, all of which will become apparent to those skilled inthe art, thefollowing detailed description of the invention and the claims should be readinconjunction with the accompanying drawings. Throughout the specification anddrawings identical reference numerals refer to identical or similar parts.Many other advantages and features of the present invention will becomemanifest tothose versed in the art upon making reference to the detailed description andtheaccompanying sheets of drawings in which a preferred structural embodimentincorporating the principles of the present invention is shown by way ofillustrativeexample .For the purpose of promoting an understanding of the principles of theinvention,reference will now be made to the embodiment illustrated in the drawings.Specificlanguage will be used to describe same. It will be understood that nolimitation of thescope the invention is thereby intended, alterations and further modificationsin theillustrated device and further applications of the principles of the inventionas illustratedherein being contemplated as would normally occur to skilled in the art towhich theinvention relates.
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