Patent ID: 6481329
Filing Date: 2002-11-19
Classification: E21B,F15B

Abstract:
A system for remotely-controlling a device, said system comprising:a pressurized fluid reservoir; a main control valve operatively connected to said reservoir; a hydraulic pilot operatively connected to a source of pressurized fluid and to said main control valve, wherein said hydraulic pilot comprises a first fluid path and a second fluid path, wherein each of said fluid paths includes a one-shot unit that comprises a squib-actuated valve and a piston accumulator, wherein said first fluid path connects to said main control valve and can receive pressurized fluid from said source of pressurized fluid, wherein said second fluid path connects to said main control valve and can direct liquid into a fluid sump, wherein when said squib-actuated valves are open, fluid will flow into the piston accumulator in the first fluid path and push a piston of said accumulator a predetermined distance, whereby once said piston has moved said distance, the piston will then stop and no further fluid will be able to flow into said first fluid path, and wherein movement of said piston will cause fluid from said first fluid path to flow through a one-way valve in said path and then apply pressure in a first direction to a movable portion of said control valve while fluid can be displaced from said control valve and flow into said second fluid path; an electrically-powered controller, wherein said controller is operatively connected to a receiver capable of receiving a signal transmitted to said receiver from a remote location, wherein said controller is electrically-connected to a squib in each of said squib-actuated valves; and a device operatively connected to said main control valve, wherein said device is actuated by a flow of fluid, wherein when said receiver receives a predetermined signal, the controller will cause the detonation of said squibs and thereby open said squib-actuated valves, thereby causing the movable portion of said main control valve to move in a first direction to thereby enable fluid to flow from said reservoir to said device and cause a movable portion of said device to move.