Abstract: Improved reinforced plastic tanks and novel mandrel processes for producing them are disclosed. One aspect of the invention is concerned with an external support rib and a method for producing it. According to the invention, the rib is fabricated on a hollow rib form secured to the exterior of a tank with resilient netting and thread. The structure comprises chopped fibers and a resin which does not require a source of external heat to cure. The tank with the rib form secured to it is rotated as the lay-up is applied. Netting and threads are supplied to the rib form and they wrap around the rib lay-up and hold it in place until it cures.Also disclosed is a method for producing a double wall tank incorporating the novel rib. According to this aspect of the invention, the ribs are cured until they are at least tacky. Then, thin flexible panels are wrapped around the outside of the ribs and held in place by a wrap.

Abstract: A method of making textile glass fibers in a rotary process is disclosed. A spinner bearing molten glass rotates on its axis of rotation. Glass is forced through orifices and the resulting fibers are moved along paths generally perpendicular to the axis of rotation. Prior to commingling or turn down of the fibers a quenching liquid is applied to the fibers.

Abstract: According to this invention, there is provided a reinforcement blanket having a plurality of layers of fiber-reinforcement materials sewn together. The sewing together of the various layers of the fiber-reinforcement materials provides a plurality of channels extending through the reinforcement blanket. The reinforcement blanket can be shaped into a preform or can be used directly as a reinforcement in a molding process. The channels in the reinforcement blanket aid in distributing a matrix resin during an impregnation process.

Abstract: The present invention provides a multi-purpose collection system for use in the simultaneous manufacture of loose fibrous mineral material and insulation blankets or mats from the forming machine. The loose fibrous mineral material is directly intercepted from the fiberizer units of the forming machine and requires no post-processing steps other than separation and packaging.

Abstract: Cobalt based alloys which include chromium, nickel, tungsten, tantalum, zirconium, carbon and boron are provided which are suitable for forming spinners to be used in forming glass fibers. The alloys contain critically important amounts of carbon which maximizes the stress rupture life of the spinner alloy and minimizes the creep rate thereby making the alloy outstandingly adapted for glass manufacture.

Abstract: A process for forming a continuous strand preformable mat is disclosed which consists of applying a binder matrix material which includes a thermosetting polyester binder material and a thermoplastic polyester binder to the continuous strand mat. The mat is heated such that the thermosetting binder material cures and hardens while the thermoplastic binder material softens and flows around strand intersections. The mat is thereafter cooled in order to solidify the thermoplastic polyester material of the binder matrix for additional handling for packaging and for subsequent handling by the customer. The preforms are made by heating the mat to over 200.degree. F., placing in a cold mold, and then closing the mold to form and solidify the mat shape.

Abstract: A double crucible fiberizing apparatus and process for producing a continuous glass filament having a core fluoride-containing glass concentrically surrounded by a clad fluoride-containing glass at increased throughput speeds while simultaneously achieving increased length and uniform filament diameter are disclosed.

Abstract: The invention is an improved compression member for use in the packaging of insulation material. The compression member includes a plurality of curvilinear finger members defining a plurality of voids extending in the machine direction of the insulation material. The finger members and defined voids enhance the compression operation by encouraging an even release of compressed air across the width of the insulation pack and by guiding the insulation material into the packaging apparatus in a desired orientation.

Abstract: A method for forming continuous glass fibers is provided comprising the steps of supplying a plurality of streams of molten glass from a bushing, drawing the streams into continuous filaments, passing a stream of air across the continuous filaments in a direction of between approximately 20.degree.-30.degree. below horizontal to cool the continuous filaments, thereafter, applying a sizing material to the cooled continuous filaments and collecting the continuous filaments on a spindle or collet.

Abstract: A method of fabricating a glass fiber forming feeder is provided comprising positioning a refractory metal core between oxygen impervious, precious metal layers to form a pre-laminate unit, said core having apertures extending therethrough; cold isostatically pressing said unit to move a portion of said layers into said apertures into intimate contact with substantially all of the core defining said apertures; and then hot isostatically pressing said unit to intimately bond said precious metal layers to said core including the portion core defining said apertures to form said laminate to prevent the oxidation of said core at elevated temperatures.

Abstract: Method and apparatus to apply a coating or coatings of a predetermined thickness over designated sections of a continously advanced elongate member by means of cooperating guide die and coating die segments. The die includes two abutting members through which, the article to be coated, passes the first member defining a guide passage and the second being in the form of a collar defining a coating groove for distributing the coating material and limiting its thickness. Since the two parts are separable cleaning is facilitated.

Abstract: A mechanically alloyed composition of matter or alloy containing 30-40% chromium, 5-25% cobalt, 0.5-10% iron, 0.2-0.6% aluminum, 0.3-1.2% titanium, up to 0.15% carbon, about 0.2-1% yttria, up to about 0.3% nitrogen, the % titanium being at least about 1.4 times the % nitrogen, minor amounts of optional elements, the balance being essentially nickel. The consolidated and hot worked alloy with coarse grains produced by heat treatment at about 1300.degree. C. is useful in service requiring hot strength along with extraordinary resistance to oxidation, sulfidation and hot corrosive media. Specific utilization of the alloy of the invention is contemplated in handling molten glass and in utensils adapted to be used in contact with molten glass, e.g. spinners.

Abstract: A tank having a composite wall including an inner wall and an outer wall, the inner wall comprising a material resistant to corrosion by gasoline or alcohol and the outer wall comprising a non-hydrolyzable resin.

Abstract: An aminated, hydroxylated, polyester polyol resin comprised of the product of a reaction of an acid anhydride selected from the group including maleic acid anhydride or a mixture of maleic acid anhydride and a polyfunctional acid anhydride, a low molecular weight polyether polyol having an average molecular weight of about 100 to about 600, selected from the group including diethylene glycol or a mixture of diethylene glycol and another low molecular weight polyether polyol, a lower alkylene oxide and having from 2 to 4 carbon atoms, and a mono- or di-functional amino compound selected from the group including diethanolamine or a mixture of diethanolamine and at least one mono- or di-functional amino compounds containing at least one isocyanate reactive group attached to the nitrogen of the mono- or di- functional amino compound.

Abstract: A method and apparatus for making a reinforced product of bituminous material comprises drawing a reinforcing mat through a tank of molten bituminous material to impregnate the mat, pulling the impregnated mat through metering rolls to establish the final thickness of the reinforced product, and controlling the relative position of the mat within the reinforced product by controlling the angle of incidence of the impregnated mat with respect to the metering rolls.

Abstract: A thermosetting resin composition comprising the product of an unsaturated polyester intermediate resin which is derived from the reaction of (a) an acid anhydride selected from the group including maleic acid anhydride or a mixture of maleic anhydride and a polyfunctional acid anhydride, a low molecular weight polyether polyol having a molecular weight of about 100 to about 600 selected from the group including diethylene glycol or a mixture of diethylene glycol and at least one other low molecular weight polyether polyol having a molecular weight of about 100 to about 600, and a lower alkylene oxide having from 2-4 carbon atoms; and, (b) a mono- or di-functional amino compound selected from the group including diethanolamine or a mixture of diethanolamine and at least one other mono- or di-functional amino compounds selected from the group including a primary or secondary amino alcohol or a primary or secondary diamine which contain isocyanate reactive groups attached to the nitrogen of the amino alcohol or

Abstract: A fitting for double wall underground storage tank where the tank has an inner wall and an outer wall is disclosed. A bore extends through the inner and outer walls of the tank. A substantially cylindrical connector having a passageway passing through the center of the connector is constructed to be positioned in the bore. A plurality of threads is positioned on the connector around the periphery of the passageway extending through the connector. A substantially cylindrical glass fiber reinforced plastic sleeve is positioned around the outer periphery of the connector. The sleeve matingly engages the outer periphery of the connector. The sleeve extends to encase the outer periphery of the connector that extends from the inner wall of the tank towards the outer wall of the tank. The connector and the sleeve are positioned in the bore with one end of the connector and sleeve extending from the outer wall of the tank.

Abstract: An assembly for multipaned windows and/or doors is fabricated from sashes having a fibrous wool core and a polymeric outer shell. The sash contains a plurality of orifices through the shell, but not the core, to provide a filtered path for air and moisture movement in and out of the cavities between panes to reduce the condensation of moisture on the panes.

Abstract: High-strength magnesium aluminosilicate glass fibers coated with the dried residue of a dilute aqueous sizing composition containing emulsified epoxy resin or emulsified epoxy resin solution, both 3-methacryloxypropyltrimethoxysilane and 3-aminopropyltriethoxysilane, and at least one lubricant, are compatible as reinforcing elements with unsaturated polyester, vinylester and epoxy resin matrixes.

Abstract: The present invention relates to an improved method and apparatus for controlling the air quality in the fiber forming zone of glass fiber manufacturing operation. The present invention provides a housing extending from the bushing to the applicator roller, the housing intended to prevent the recirculation of air containing contaminated particulate into the fiber forming zone. Clean air is supplied with the housing at desired flow rates to maintain temperature and air flow requirements.