Patent CA-3028798-A1 (CA)
Title: Bam bam
Inventor: CARSWELL KENT P
IPC: A01K61/10
Filed: 2019-01-02
Abstract: A safe and quick gas operated syringe that pierces the skull and brain of a fish includes a hollow syringe in which a high pressured gas can be dispatched. The present invention places the end stop of the syringe perpendicular on to the skin or scales of the fish in which the brain is located. The needle is retained inside the syringe via a spring and piston until the high pressure valve actuator induced gas forces the needle out of the syringe and into the brain of the fish. A high pressure gas is expelled out of the end and sides of the needle causing complete brain destruction and immediate death to the fish. A sealed gas cartridge is attached to an actuator which instantly presents pressured gas into the syringe cylinder which plunges the piston with attached needle to the end stop of the syringe . The needle protrudes past the end stop of the syringe of which touches the fish head over top of the cranial area and penetrates the fish brain.  The needle is the means in which high pressure gas is introduced to the brain matter of the fish.The syringe uses a trigger exhaust valve to rapidly deploy high pressure gas to cylinder, piston, and through the needle into the fish brain and simultaneously expels the high pressure gas from the syringe into the brain causing a quick and painless destruction of the fish brain. Once the trigger is released the gas expelled through the needle and syringe cylinder no longer has pressure to compress the return spring and the needle returns into the syringe to the rest stop for safety and is ready for the next deployment.The high pressure cylinder can be easily installed or removed and can be utilized for several cycles with the use of the quick valve assembly. The present invention once placed on the brain area of the fish with the end stop will quickly and instantly upon activation of the device kill the fish.   A piston shall be thick enough on the side walls in order to maintain the straight and true travel of the needle out of the cylinder and equally true into the fish. A piston shall have a cavity open from the top surface of the piston to the bottom surface of the piston allowing high pressure gas to flow through the attached hollow needle. A piston with a centred hollow needle on the down stroke side is similar in diameter to the interior diameter of the syringe and maintains a seal allowing for a build up of pressure against the piston causing an unrestricted sliding motion inside the syringe cylinder. A high pressure cylinder is attached to a quick flow valve via an air tight seat and is attached to the syringe via an air tight seat. All discharge from the actuator enters the syringe cylinder and push's the piston to the end stop of the syringe cylinder. The outer surface of the syringe end stop is pressed against the fish cranial area allowing the positioning of needle attached to the piston to penetrate the brain of the fish and expel its pressured gas upon activation. A needle that is long enough to penetrate the brain of the fish will expel the remaining high pressure gas from the downward side of the high pressure valve and out of several side ports in the needle to destroy the brain immediately. A spring on the down stroke side of the piston will compress upon the activation of the high pressure valve from high pressure pushing on the up side of the piston. Once the piston is fully traveled down to the end stop of the syringe the release of pressure through the needle will allow the piston to return travel via the compressed spring until the spring ceases to be compressed and the piston positions 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 suffocate to death. (ii) Once a fish is caught for keeps , it has its gills sliced separating oxygen and blood supply suffocating the fish to death. (iii) Once a fish is caught for keeps, it has its head cut from the top down causing spinal cord 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 or other blunt object causing death to the fish. (v) Once the fish is caught for keeps, it has a steel cylindrical object forced into and penetrating the brain, ultimately killing the fish.   meat. The present invention allows for less time worrying about killing the fish and more time enjoying the art of fishing. Ultimately the present invention is the least offensive way to kill a fish on a humanitarian perspective.   The forgoing object and summary provides only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example .   For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings.  Specific language will be used to describe same. It will be understood that no limitation of the scope the invention is thereby intended, alterations and further modifications in the illustrated device and further applications of the principles of the invention as illustrated herein being contemplated as would normally occur to skilled in the art to which the invention relates.