Abstract: A hydraulic particle separator is described. The particle separator comprises a main body having a top, a bottom, and a wall enclosing an interior cavity. At least one feed port is disposed on the top of the main body to introduce crude particle mixtures. A partition disposed within the cavity separates the cavity into a lower chamber and an upper chamber. The partition has at least one orifice for fluidic communication between the upper chamber and lower chamber. One or more grooves extend vertically along the interior surface of the wall. At least one tangential flow inlet port is disposed along the wall of the upper chamber above the partition.

Abstract: An innovative compact high efficiency hydraulic particle separator is disclosed. Featured embodiments of the innovative separator comprise a cylindrical main body having an upper chamber and a lower chamber separated by a partition. A liquid fluid flow upwelling through the partition from the lower chamber is caused to mix with tangential jet of fluid flowing introduced above the partition in the upper chamber produces a spiral flow within the upper chamber and flows upward to the top of the apparatus. Particle mixtures containing low density and high specific gravity particles and other solids are introduced into the upper chamber are immediately contacted by the upward spiral flow, where low-density particles are immediately entrained in the spiral flow and separated from the high-density particles, swept upward and exit the apparatus.

Abstract: The present invention provides a spring powered wheelbarrow with a manually powered drive assembly. A foot crank winds a spring through a system of shafts and sprockets in a first direction. By releasing a brake upon a front wheel of a wheelbarrow, the wound spring transfers a rotational movement from a spring shaft to a freewheel sprocket adjacent to the front wheel, the rotational movement upon the front wheel assisting a user in pushing the wheelbarrow.

Abstract: The present invention provides a spring powered wheelbarrow with a manually powered drive assembly. A foot crank winds a spring through a system of shafts and sprockets in a first direction. By releasing a brake upon a front wheel of a wheelbarrow, the wound spring transfers a rotational movement from a spring shaft to a freewheel sprocket adjacent to the front wheel, the rotational movement upon the front wheel assisting a user in pushing the wheelbarrow.