Patent ID: 7735386

Claim:
A power generation device comprising: a support structure; a first apparatus that provides reciprocating rotational motion to an axle having a longitudinal axis, wherein the first apparatus is a pendulum assembly supported to the support structure; a second apparatus that receives reciprocating rotational motion from the axle and provides corresponding oscillating linear motion along a line having a longitudinal axis, wherein the second apparatus comprises: a screw/nut assembly that receives reciprocating rotational motion from the axle and that provides corresponding oscillating rotational motion and oscillating linear motion along the line, wherein the screw/nut assembly is supported to the support structure and comprises: a ball nut; and, a ball screw that travels within the ball nut; and, a rotation arrester that receives oscillating rotational motion and oscillating linear motion from the screw/nut assembly and that provides corresponding oscillating linear motion along the line substantially without oscillating rotational motion, wherein the rotation arrester comprises: a first block rigidly fastened to the support structure; at least one rod that is rigidly fastened to the first block and that is substantially parallel to the longitudinal axis of the line; and, a second block that slides along the rod and that is operatively connected to the screw/nut assembly; and, wherein the longitudinal axis of the axle is substantially parallel to the longitudinal axis of the line.