Patent ID: 9675058
Date: 2017-06-13
CPC Classifications: A01K,B63B

Claim:
1. A fish recompression tool for releasing a fish below the surface of a body of water, said tool comprising: an elongate body having a proximal end, a distal end and an inner surface between said proximal end and said distal end; an attachment member on the proximal end of said elongate body, said attachment member being structured and disposed for attaching to the fish, and said attachment member being operable between a closed configuration for attachment to the fish and an open configuration for releasing the fish; an airtight chamber within said elongate body and surrounded by said inner surface; a piston movably received within said elongate body to define a first end of said airtight chamber, and said piston being disposed in sealed engagement with said inner surface of said elongate body to prevent passage of liquid and gas between said piston and said inner surface, and said piston being movable relative to said proximal and distal ends of said elongate body in response to external forces exerted thereon; a spring housed within said airtight chamber, said spring engaging said piston and applying a force on said piston towards said proximal end of said elongate body to urge said piston to a first position; and said attachment member being held in the closed configuration when said piston is at the first position and said piston being moveable from the first position in response to the external forces exerted thereon exceeding an internal pressure force within said airtight chamber and the force applied to said piston by said spring to operate said attachment member to the open configuration, thereby releasing the fish.