Abstract: Methods, particles, and devices are disclosed for filtration of oil for use of the oil in the preparation of biodiesel. Disclosed particles may comprise a substantially inert porous particle with a coating comprising a polymer having amine, amino, and/or imine group(s).

Abstract: An aerosol spray can or bottle is described incorporating a dispensing valve for blending a liquid product contained within a compressible compliant inner container that is suspended within an outer vessel whose interior is pressurized with air or other suitable gas. In each of the embodiments described, the structure for suspending the compliant container for the product includes a socket in which a valve body member and first and second seals are contained. A push-button having a spray nozzle is affixed to a spring-biased plunger and when the push-button is not being depressed, the first seal member precludes flow of the pressurizing gas to a mixing chamber and second seal member blocks the flow of the liquid product into the mixing chamber. Depression of the push-button operates to displace the first and second valves permitting a portion of the pressurizing gas to mix with the product to be dispensed in the mixing chamber before exiting the spray nozzle.

Abstract: An aerosol spray can or bottle is described incorporating a dispensing valve for blending a liquid product contained within a compressible compliant inner container that is suspended within an outer vessel whose interior is pressurized with air or other suitable gas. In each of the embodiments described, the structure for suspending the compliant container for the product includes a socket in which a valve body member and first and second seals are contained. A push-button having a spray nozzle is affixed to a spring-biased plunger and when the push-button is not being depressed, the first seal member precludes flow of the pressurizing gas to a mixing chamber and second seal member blocks the flow of the liquid product into the mixing chamber. Depression of the push-button operates to displace the first and second valves permitting a portion of the pressurizing gas to mix with the product to be dispensed in the mixing chamber before exiting the spray nozzle.

Abstract: A spray container for dispensing a liquid product as a fine mist incorporates a compliant bag-like inner reservoir in which the product to be dispensed resides. The container incorporates a built-in air pump for charging the chamber defined by the outer container with compressed air. A valve mechanism is provided which when actuated by depression of a push-button, causes a mixture of the compressed air and liquid to be dispensed to be ejected as a fine mist through a spray orifice.

Abstract: Spray bottle dispensers for liquid products featuring, in the case of a first embodiment, a refillable and rechargeable container especially designed so that the product being dispensed does not come into contact with working parts of the valve structure, thus obviating problems due to gum-up. In an alternate embodiment, loss of the propellant (compressed air) through the container wall is prevented by using a first compliant walled container for the product to be dispensed and a second compliant wall container as a liner.