Abstract: A thermal spray coating composition comprising up to about 90 weight percent of the composition of a first thermoplastic material and up to about 50 weight percent of the composition of at least one additional thermoplastic material that is different from the first thermoplastic material. Additional components can be added to the empirical compositions in order to best additional secondary properties.

Abstract: The present invention is directed to a process and apparatus for thermally spray coating the inside surface of a hydro-drive device, namely a Kort, so as to improve hydro-flow thrust and reduce the consumption of fuel for a vessel comprising the adapted Kort. The process of the present invention comprises thermally spraying a thermoplastic material in the area of the interior wall of the Kort that comes in close proximity to the propeller of the hydro-drive device. The closer the propeller comes to the interior wall of the Kort, the less friction and cavitations produced. Since friction and cavitations increases fuel consumption of the vessel, any reduction in the clearance between the wall of the Kort and the propeller tips directly reduces fuel consumption. At the same time, a reduction in clearance also increases the thrust of the hydro-drive device.

Abstract: A fluid amplification and mixing device is provided, which includes a siphon plug defining a first portion of a passageway being configured to receive a first fluid. The siphon plug further defines at least one opening configured to receive a second fluid in communication with the passageway. A venturi defines a second portion of the passageway for receiving a mixture of the first and second fluids. The venturi further defines an input port configured to receive a third fluid and at least one accelerator chamber communicating with the input port and the second portion of the passageway. A siphon barrel defines a third portion of the passageway being configured to receive a mixture of the first, second and third fluids and supply the mixture to a combustion chamber thereof.

Abstract: A coating composition comprising (i) at least one resin powder and (ii) at least one component selected from the group consisting of a metal compound, biocide and fluoropolymers. In particular, one antifouling composition that can be used on underwater stationary structures that sit in highly fouling environments comprises polyethylene as a resin powder, and copper in the form of cuprous or cupric oxide.

Abstract: A particle for depositing a coating on a substrate surface by a low temperature thermal spray process having a plastic core and a particulate forming an non-continuous cladding layer around the plastic core so that enough heat can be transferred to the plastic core to cause it to melt but not so much so as to vaporize the plastic core. At the same time the particulate cladding material having a higher melting point does not melt. A particle having an inorganic core clad to a plastic outer layer is also provided. A process for making the clad material and for thermally spraying the clad material is provided. An article coated with the clad material is also provided.

Abstract: A thermal spray device for applying powder and polymer coatings, to large areas by means of a staged double or triple Venturi oriented at the distal end to produce a compression wave is described. The spray patterns produced by the nozzles can range from about three inches to about nine inches. The gun is designed so that the front-end nozzles are interchangeable with other front-end nozzles so as to allow for quick changes between nozzles designed to cover different coverage areas. The lightweight compact design allows for comfort and high portability.

Abstract: A system for thermal spray coating of a particulate material onto a substrate includes a spray gun apparatus having dual vortex chambers for the mixing of fuel gas and oxygen. The apparatus provides a jet flame resulting from a compression wave formed by compressed air. Dual venturis control the flow of fluidized coating material particles to provide smooth and controlled delivery of coating material to the spray gun.

Abstract: A thermal spray coating composition comprising up to about 90 weight percent of the composition of a first thermoplastic material and up to about 50 weight percent of the composition of at least one additional thermoplastic material that is different from the first thermoplastic material. Additional components can be added to the empirical compositions in order to best additional secondary properties.

Abstract: A system for thermal spray coating of a particulate material onto a substrate includes a spray gun apparatus having dual vortex chambers for the mixing of fuel gas and oxygen. The apparatus provides a jet flame resulting from a compression wave formed by compressed air. Dual venturis control the flow of fluidized coating material particles to provide smooth and controlled delivery of coating material to the spray gun.

Abstract: A system for thermal spray coating of a particulate material onto a substrate includes a spray gun apparatus having dual vortex chambers for the mixing of fuel gas and oxygen. The apparatus provides a jet flame resulting from a compression wave formed by compressed air. Dual venturis control the flow of fluidized coating material particles to provide smooth and controlled delivery of coating material to the spray gun.