A static classifier including a vessel having an inlet and an outlet and having a vessel interior area. A classifier chamber is positioned in the vessel interior area. The classifier chamber has a plurality of openings extending through a side wall of the classifier chamber and into a classifier interior area of the classifier chamber. The plurality of openings are configured for passing particles entrained in a gas from the vessel interior area into the classifier interior area. One or more flow restrictors are arranged with the classifier chamber. The flow restrictors are configured to establish an optimal flow velocity and direction of the particles entrained in the gas, through the static classifier.

An assembly and method for gravitationally separating gold from particles, and specifically for separating small components of gold, less than 1 millimeter from small particles. A series of sieves having graduated mesh sizes, and arranged in a sequential, stacked configuration sieves the aggregate of large particles and larger components of gold. The remaining small particles and smaller components of gold fall into a container. A pressurized column of fluid is forced into the container. The fluid has sufficient flow velocity to suspend the lighter small particles, but insufficient flow velocity to support the denser, high specific gravity gold. Gold has a large specific gravity relative to the fluid and particles. Gravity causes the gold to falls into a transparent collection conduit. Manipulation of valves enables gold to redirect to a collection bin. Fluid flow is shut, enabling small particles to be flushed out through gravitational forces and excess fluid momentum.

An assembly and method for gravitationally separating gold from particles, and specifically for separating small components of gold, less than 1 millimeter from small particles. A series of sieves having graduated mesh sizes, and arranged in a sequential, stacked configuration sieves the aggregate of large particles and larger components of gold. The remaining small particles and smaller components of gold fall into a container. A pressurized column of fluid is forced into the container. The fluid has sufficient flow velocity to suspend the lighter small particles, but insufficient flow velocity to support the denser, high specific gravity gold. Gold has a large specific gravity relative to the fluid and particles. Gravity causes the gold to falls into a transparent collection conduit. Manipulation of valves enables gold to redirect to a collection bin. Fluid flow is shut, enabling small particles to be flushed out through gravitational forces and excess fluid momentum.

A sluice including an upper channel that includes a material deck and a tilted classification screen. Below the classification screen is a lower cavity located between two longitudinally aligned plenums located under the upper channel. Each plenum includes a front opening and a rear opening and an interior sidewall. Extending between the plenums is a floor plate. Fluidization holes are formed on each interior sidewall. During use, the sluice is positioned in a stream so water flows simultaneously over the upper channel and the through the front openings of the plenums. Water flowing over the upper channel separates mined material placed on the material deck so that small particles fall through the classification screen. The water entering the front openings of the two plenums flows through the plenums and partially exits through the fluidization holes and sprays over the small particles deposited in the lower cavity further separating the fine gold particles from the small particles.

A sluice including an upper channel that includes a material deck and a tilted classification screen. Below the classification screen is a lower cavity located between two longitudinally aligned plenums located under the upper channel. Each plenum includes a front opening and a rear opening and an interior sidewall. Extending between the plenums is a floor plate. Fluidization holes are formed on each interior sidewall. During use, the sluice is positioned in a stream so water flows simultaneously over the upper channel and the through the front openings of the plenums. Water flowing over the upper channel separates mined material placed on the material deck so that small particles fall through the classification screen. The water entering the front openings of the two plenums flows through the plenums and partially exits through the fluidization holes and sprays over the small particles deposited in the lower cavity further separating the fine gold particles from the small particles.

The wheeled litter-sifting cart is a device that is adapted to store containers of cat litter as well as to sift out used cat litter for disposal of waste and potential re-use of cat litter. The wheeled cart is mobilized via a plurality of wheels that are affixed to a cart frame. The cart frame includes a bottom deck, intermediate deck, and a top deck. The bottom deck, the intermediate deck, and the top deck are all parallel with respect to one another, and are equally spaced elevationally, speaking. The top deck includes a first opening adjacent to a second opening. A hinged sifter is attached to the top deck in between the first opening and the second opening. In use, a first bucket is aligned underneath the first opening, a second bucket is aligned underneath the second opening, and soiled cat litter is sifted via the hinged sifter.

Embodiments of the invention provide an apparatus and method for separating cremated remains utilizing a base having side walls and a bottom wall, a receptacle positioned on the bottom wall of the base, a hopper supported by the at least two side walls of the base and having a first opening at a first end of the hopper and a second opening at a second end of the hopper, the first opening having a cross-sectional area that is larger than a cross-sectional area of the second opening; and a screen having a perimeter, wherein the perimeter is removably received within the first opening of the hopper and the second opening of the hopper is in communication with the receptacle.

The present disclosure is directed to a tire particulate collection device for a motor vehicle. A tire particulate collection device is disclosed having at least a first chamber which includes a first grate and, a first collection compartment where tire particulate or other debris are collected. The device also comprises a last chamber having a collection plate. The last chamber also has a last collection compartment that allows entry of tire particulate matter into the last collection compartment. During vehicle operation, the tire particulate matter is accelerated through the device due to an applied electric field induced by providing an electrical charge to at least the first grate and collection plate. The tire particulate is then collected within the device.

The present disclosure is directed to a tire particulate collection device for a motor vehicle. A tire particulate collection device is disclosed having at least a first chamber which includes a first grate and, a first collection compartment where tire particulate or other debris are collected. The device also comprises a last chamber having a collection plate. The last chamber also has a last collection compartment that allows entry of tire particulate matter into the last collection compartment. During vehicle operation, the tire particulate matter is accelerated through the device due to an applied electric field induced by providing an electrical charge to at least the first grate and collection plate. The tire particulate is then collected within the device.

There are provided hoppers for separating slack from a mixture of product and slack, and systems and method using such hoppers. Each hopper comprises: an internal gate configured to prevent the passage of product therethrough, but to allow the passage of slack therethrough; and, an external gate configured to prevent the passage of product and the passage of slack therethrough; the internal gate and the external gate being moveable between respective open and closed positions; the hopper configured such that: when the internal gate and external gate are in their respective closed positions and the mixture is introduced into the hopper, product is retained by the internal gate whilst slack passes through the internal gate and is retained by the external gate; and, when the external gate and internal gate are each in their respective open positions, product may exit the hopper along a first path.