Patent ID: 8763497

Claim:
A hydraulic wrench extension, comprising: a first housing adapted to contain one or more input head components, said input head components comprising: a rotatable torque input for connecting a source of torque to the first housing, the rotatable torque input comprising a first cam extending radially outwardly from a center thereof; and a first piston connected to the rotatable torque input at the first cam, said first piston at least partially engaged with a first bore within the first housing, said first bore coupled to a first fluid channel extending from said first bore to an outlet port of the first housing; a second housing adapted to contain one or more output head components, said output head components comprising: a rotatable torque output for providing an output torque, the rotatable torque output comprising a second cam extending radially outwardly from a center thereof; and a second piston connected to the rotatable torque output at the second cam, said second piston at least partially engaged with a second bore within the second housing, said second bore coupled to a second fluid channel extending from said second bore to an inlet port of the second housing; a hydraulic fluid conduit extending between said outlet port of said first housing and said inlet port of said second housing forming a fluid communication between said first bore and said second bore; wherein said first housing and input components therein are adapted to receive an input torque and convert said input torque into hydraulic fluid pressure; wherein said hydraulic fluid conduit is adapted to communicate said hydraulic fluid pressure from said first bore to said second bore; and wherein said second housing and output head components are adapted to convert said hydraulic fluid pressure into torque for rotating said rotatable torque output.