Abstract: A method and system are provided for adjusting a discharge width of a powder feeder. The system includes a supply hopper that is spaced from the powder feeder. The powder feeder includes a receiving opening and a discharge opening and at least one adjustable wall. Preferably, two adjustable walls are provided. Movement of the two adjustable walls provides variations in the width of the discharge opening and therefore facilitates use of the powder feeder on target volumes or target areas having different widths. A rotatable auger brush is in communication with the supply hopper for causing powder withdrawn from the supply hopper to be transported to the powder feeder and disposed uniformly across the receiving opening of the powder feeder. The brush is immersed within the powder and extends across the receiving opening of the powder feeder, and maintains a filled level powder feeder. The powder feeder is particularly well-suited for use in a coating apparatus, as well as a dual-side coating apparatus.

Abstract: A powder atomizer comprises a pan, and an element journaled for rotation about an axis. The pan partially surrounds the element, and therewith defines a venturi into which powder is fed. The venturi has an inlet and a spaced outlet. A motor rotates the element within the pan in excess of the speed required to throw powder from the element by centrifugal force and draws gas through the venturi, so that powder fed into the element is atomized and produces a uniform cloud of particulate material. A nonconductive element minimizes the electrical charge on the pan, and thereby the resulting agglomerization of particulate material at the outlet.

Abstract: A method and system for maintaining a uniform volume of powder in a powder feeder provided. The system includes a supply hopper that is spared from a powder feeder. The powder includes a receiving opening and a discharge opening. A rotatable brush is in communication with the supply hopper for causing powder withdrawn from the supply hopper to be transported to the powder feeder and disposed uniformly across the receiving opening of the powder feeder. The brush is immersed within the powder and extends across the receiving opening of the powder feeder, and maintains a filled level powder feeder.

Abstract: A release coating composition and a method of forming a release coating on a bakeware substrate using the coating composition is provided. The release coating composition includes (i) an acrylic resin, (ii) an epoxy resin, and (iii) a silicone release agent. The release coating composition can be formed in two parts, a base coat composition and a top coat composition. The base coat composition may include an epoxy resin, an acrylic resin, a color additive and appropriate solvents. The top coat composition may include an acrylic resin, an epoxy resin, a silicone release agent, a silicone resin and appropriate solvents. Each of the parts can be separately applied to the bakeware substrate and heated to form a release coating. In some cases, the top coat composition alone may only be applied if fabrication of the coated substrate will not be severe.

Abstract: An apparatus and a method for bonding a laminate formed of at least two layers of sheet material superimposed on one another with adhesive therebetween and moved along a path. The apparatus includes a first laminator having an upper plate assembly having a first low-friction laminate-contacting surface for contacting a first layer of the laminate, and an upper heat exchanger thermally coupled to the upper plate assembly. The first laminator also includes a lower plate assembly having a second low-friction laminate-contacting surface for contacting a second layer of the laminate, wherein the first and second laminate-contacting surfaces are disposed in opposed relationship for accommodating passage of the layers of the laminate therebetween, and a lower heat exchanger thermally coupled to the lower plate assembly.

Abstract: A hybrid structural material combines high thermal conductivity and pre-determined mechanical properties compatible with adjacent or attached materials. It has three elements: (1) a non-structural, high thermal conductivity core material which defines the thermal conductivity of the hybrid structural material; (2) a pair of face sheets, which form opposing surfaces of the hybrid structural material and help to define its mechanical properties, disposed on opposite sides of the core material to create a face sheet-core material-face sheet sandwich construction; and (3) a frame substantially surrounding the core material and bonded to the face sheets for helping to define (along with the face sheets) the mechanical properties of the hybrid structural material.The interfaces between the face sheets and the core material allow physical contact, but prevent structural interaction, between the face sheets and the core material.

Abstract: A fiber reinforced composite structure having a fiber reinforcing member and a hardened matrix material. The fiber reinforcing member, or fabric, has portions which protrude substantially out of the plane of the fabric to facilitate the snugged nesting of laminated fabrics in the construction of a fiber reinforced composite structure.

Abstract: Fast curing resin coating compositions for coating metal surfaces and a one-step method are described. The coatings comprise a high molecular weight epoxy resin, although a portion thereof may be low molecular weight, an effective amount of a cross-linking agent for the epoxy resin, a polysiloxane resin system, an effective amount of a curing agent for the polysiloxane fluid system, a fluorocarbon polymer, and the balance being suitable solvents. The coatings are applied in one-step and dry in less than one minute and may be formed into various shapes and forms useful for stovetop cookware.

Abstract: Fast curing resin coating compositions for coating metal surfaces and a one-step method are described. The coatings comprise a high molecular weight epoxy resin, although a portion thereof may be low molecular weight, an effective amount of a cross-linking agent for the epoxy resin, a polysiloxane resin system, an effective amount of a curing agent for the polysiloxane fluid system, a fluorocarbon polymer, and the balance being suitable solvents. The coatings are applied in one-step and dry in less than one minute and may be formed into various shapes and forms useful for stovetop cookware.

Abstract: Steel product in coil form such as sheet steel is uncoiled, then preheated, continuously transported through a lead bath containing chromium, then cooled, and finally recoiled. When the coiled steel does not have titanium, titanium is included in the bath in order to improve the corrosion resistance of the final product.

Abstract: Fast-curing resin compositions for coating metal surfaces are described. They comprise a low molecular weight methylated melamine-formaldehyde resin, an epoxy resin, such as a bisphenol-epichlorohydrin resin, a silicone fluid and an organopolysiloxane release resin, with a zing-iron organometallic curing agent and a solvent. In addition to curing rapidly (one minute or less), the resin compositions are flexible and metal sheets coated therewith can be pressed or bent into various shapes and forms without the resin coating cracking or chipping.

Abstract: Fast-curing resin compositions for coating metal surfaces are described. They comprise a high molecular weight epoxy resin, an etherified resol phenolic resin, a silicone fluid and an organopolysiloxane release resin, with an zinc-iron organometallic curing agent and a solvent. In addition to curing rapidly (one minute or less), the resin compositions are flexible and metal sheets coated therewith can be pressed or bent into various shapes and forms without the resin coating cracking or chipping.

Abstract: Two ferrous-based components are bonded together to form a bonded structure and simultaneously a layer is diffused into the surfaces of the components. The process involves first placing the components in juxtaposition, and contacting the juxtaposed components with a molten lead bath having at least one diffusing element therein. One component may be a corrugated sheet and the other may be an uncorrugated or less corrugated sheet, the sheets being in the form of helixes interposed in each other to create a substantial number of fold lines being in contact with the surface of the uncorrugated sheet. Alternately, a sheet with projections may be used in place of the corrugated sheet.

Abstract: Predetermined diffusing elements such as chromium and/or aluminum are diffused into the surface of a ferrous-based part while preventing, or at least minimizing, bonding of portions of such part to each other or to a fixture with which the part is processed, by constructing the fixture of a barrier material or placing a barrier layer between the member and the part. The barrier has a composition to substantially preclude diffusion therein of the predetermined element and that is capable of withstanding a molten-lead alloy bath. Then the part is contacted by a molten alloy bath consisting essentially of lead and the diffusing elements. Thereafter, the part is separated from the member. The process finds particular use when the part is coiled sheet steel, in which case adjacent flights of coil are spaced by separator means which is made of a barrier material or carries a barrier layer.

Abstract: Fast-curing resin compositions for coating metal surfaces are described. They comprise a high molecular weight epoxy resin, a low molecular weight epoxy resin, an etherified resol phenolic resin, a silicone fluid and an organopolysiloxane release resin, with an organometallic curing agent and a solvent. In addition to curing rapidly (one minute or less), the resin compositions are flexible and metal sheets coated therewith can be pressed or bent into various shapes and forms without the resin coating cracking or chipping.

Abstract: A ferrous based substrate is diffusion coated by contacting the substrate with a molten alloy bath consisting essentially of lead and chromium, wherein the quantity of chromium is less than 0.85% of the weight of the lead.

Abstract: A ferrous based substrate is diffusion coated by contacting the substrate with a molten alloy bath consisting essentially of lead and chromium, wherein the quantity of chromium is less than 0.85% of the weight of the lead.