Zyp Coatings, Inc.

Other

William Brent Webb

Cressie E Holcombe

Patrick J Ritt

Cressie E Holcombe, Jr

Lloyd R Chapman

Steven R Schenck

Christopher W Ivey

Karl W Dersch

A porous refractory in the KO—SiO—BOsystem is formed by chemical direct foaming by heating to over 600° C., resulting in adherent black or white foam. The foam can function as highly porous thermal insulation, a high or low thermal emissivity surface, as a sealant for deteriorated refractory surfaces, as a filler for pockmarks/holes/gaps or as a bonding agent for parts with large gaps between them.

Refractory foam

Bulk paint and ceramic powder systems, methods of forming same, and methods of forming a flexible ceramic coating on a metal substrate are disclosed. The systems may include a ceramic composition having between 2 to 30 weight percent of an alkali metal oxide, such as KO, NaO, and LiO or mixtures thereof, between 10 to 74 weight percent SiO, and between 23 to 79 weight percent BO. Additives that are nonwetting with molten metals, such as boron nitride, provide durable coatings for metal processing operations. The ceramic composition may include less than 5 weight percent additional metal oxides. The bulk paint system further may include water and a cellulosic suspension agent to form a bulk paint. The ceramic powder system may be processed to form a uniform powder. The bulk paint or uniform powder may be applied to a metal substrate, such as a ferrous metal substrate, dried, and heated to form a flexible coating on the metal substrate.

Flexible ceramic coatings for metals and methods of making same

A porous refractory in the KO&#x2014;SiO&#x2014;BOsystem is formed by chemical direct foaming by heating to over 600&#xb0; C., resulting in adherent black or white foam. The foam can function as highly porous thermal insulation, a high or low thermal emissivity surface, as a sealant for deteriorated refractory surfaces, as a filler for pockmarks/holes/gaps or as a bonding agent for parts with large gaps between them.

A non-aqueous solution-suspension of RO&#x2014;SiO&#x2014;BOcomprises in the dry state a composition of 2 to 30 weight percent RO, wherein RO is an alkali metal oxide; between 10 to 74 weight percent SiO; and between 23 to 79 weight percent BO. Non-aqueous solution-suspensions are used to blend to give a liquid paint which, on drying, contains the composition within the range given above in the RO&#x2014;SiO&#x2014;BOsystem. Non-aqueous bulk liquid and aerosol based spray paints are provided, with or without Boron Nitride additions, to allow the formation of tough, flexible coatings onto ferrous metals after bake-on.

Solvent-based coating refractory coatings for ferrous metals

A fully inorganic boron nitride paste, containing 80 to 94% of a boron nitride paint and 6 to 20% of ceramic fibers, is provided to allow the process of manufacturing boron nitride &ldquo;shell&rdquo; coatings of 0.0313 to 0.25 inch onto ceramic substrates chosen from a wide range of densities. De-clumping of the ceramic fibers such that fiber lengths are greater than 100 micrometers and clumps are less than {fraction (3/32)} inch improves boron nitride &ldquo;shell&rdquo; layer uniformity. Boron nitride content of greater than 36 wt. % (or about 50 vol. %) in the boron nitride &ldquo;shell&rdquo; provides ceramic structures with a matrix of boron nitride that provides long-term nonwetting behavior for molten nonferrous metals.

Boron nitride paste composition, boron nitride &ldquo;shell&rdquo; coated ceramic structure, and process of manufacturing

A rudderless sailboat having a hydrodynamic symmetry fore and aft which can be sailed equally well in either direction. The craft is steered by tilting the mast and keel. In an alternative embodiment the sailboat also has no keel. The hulls are rigid and have a v-shaped bottom. While sailing forward, the sail can be rotated past the angle of zero angle-of-attack to that angle-of-attack where the wind is aback on the sail. This stops the boat and causes it to sail back in the general direction from which it came. This sailboat maneuver is called a tack aback.

Tack aback sailboat

A rudderless sailboat having a mast keel assembly which can be pivoted fore or aft to generate a moment of force to effect easy precise sailboat steering. In one embodiment including a catamaran, the keel is integral to the mast and thus pivots correspondingly but in an opposite direction from vertical as the mast is pivoted fore or aft. In yet another embodiment, a monohull is provided wherein a frame extends laterally over each side rail of the hull and downwardly to a respective keel, wherein the mast extends upwardly therefrom. The frame is secured in an oar lock on each side rail. Thus, as the sail and mast is pivoted forwardly, each keel disposed lateral of the side rails is pivoted rearwardly. In still yet another embodiment, a slope-rigged sailboat is disclosed wherein the mast can be pivoted fore or aft by adjusting the length of the forestay and backstay. The keel is stationary, and a winch is used to adjust and secure the position of the mast.

Growing community of inventors

Oak Ridge, TN, United States of America

William Brent Webb