Patent ID: 9331548
Filing Date: 2016-05-03
CPC Classification: F03G

Claim Text:
1. A device for converting a weight of an overpassing vehicle or pedestrian into mechanical energy, comprising: a vessel of a rectangular funnel shape having a rectangular mouth and a rectangular cross section at an upper portion, a reservoir in a middle portion, a stem with a circular cross section at a lower portion; a movable platform having an I-shaped cross section disposed inside the upper portion and enclosed by the rectangular mouth, the movable platform including a top treadle area, a top flange, a bottom flange and a central web channel disposed between the top flange and the bottom flange; a piston disposed inside the stem at the lower portion; and an incompressible fluid contained in the reservoir and is in contact with the movable platform and the piston, wherein the rectangular cross section is greater than the circular cross section, wherein the movable platform is configured to receive the weight of the overpassing vehicle or pedestrian at the top treadle area and drop to produce an upstream vertical displacement, wherein the incompressible fluid is configured to receive the upstream vertical displacement from the movable platform and to transfer the upstream vertical displacement to the piston, wherein the piston is configured to receive the upstream vertical displacement from the incompressible fluid and drop to produce a downstream vertical displacement, and wherein the downstream vertical displacement is greater than the upstream vertical displacement.