Abstract: A spinner is adapted to be fixed at one end of a rotatable shaft in a fiberizer, the spinner including a radial wall extending radially out from the shaft and having an upper surface, a dam separating the upper surface into an inner portion and an outer portion, a lower surface, at least one first flow hole connecting the upper surface to the lower surface, and at least one second flow hole connecting the inner portion and the outer portion of said upper surface, and an outer peripheral wall connected to the radial wall and having a plurality of orifices therethrough.

Abstract: An insulation product includes an elongated comformable body of fibrous insulation having front and rear major surfaces and two elongated side surfaces. A facing is adhered to the front major surface of the conformable body, the facing having sufficient tensile strength to withstand a pressure, without tearing, of about 1.0 pound per square foot from the fibrous insulation in a wall cavity defined by wall studs, when the facing is adhered to the wall studs. The facing is bonded to the conformable body with sufficient strength to provide product integrity to the insulation product when it is cut lengthwise. The insulation product can be expanded when unconstrained to a high loft thickness so that when the batt is placed in an insulation cavity having a thickness less than or equal to the high loft thickness, the insulation product can be expanded to fill the insulation cavity. The fibrous insulation material has a resistance to compression less than about 1.

Abstract: A spinner is adapted to be fixed at one end of a rotatable shaft in a fiberizer, the spinner including a radial wall extending radially out from the shaft and having an upper surface, a dam separating the upper surface into an inner portion and an outer portion, a lower surface, at least one first flow hole connecting the upper surface to the lower surface, and at least one second flow hole connecting the inner portion and the outer portion of said upper surface, and an outer peripheral wall connected to the radial wall and having a plurality of orifices therethrough.

Abstract: A rotary fiberizer includes a spinner for centrifuging fibers from molten material along a path generally coplanar with the spinner, and a pair of opposed annular blowers positioned on opposite sides of the path of the centrifuged fibers, with the blowers having an interior face which is oriented toward the path of the centrifuged fibers, and the blowers having an exterior face which is oriented away from the path of the centrifuged fibers. An induced air conduit associated with each of the blowers is adapted to supply air to the path of centrifuged fibers, and the exterior faces of the blowers contain blower openings to discharge attenuation gasses into the induced air conduits to attenuate the centrifuged fibers.

Abstract: A method and apparatus for distributing fibrous material includes establishing a flow of fibrous material, positioning at least two flow distributors in a position to direct a gaseous flow into contact with the flow of fibrous material, such as a flow of glass fibers, each flow distributor having an outer surface having one or more openings for the emission of gas, an inner surface having one or more orifices for the emission of gas, and a pressurized source of gas in contact with the inner surface, the inner surface being moveable with respect to the outer surface to intermittently align some of the openings with some of the orifices, thereby enabling gas from the pressurized source of gas to be emitted through the inner and outer surfaces and into contact with the flow of fibrous material to distribute the fibrous material, and moving one of the surfaces relative to the other of the surfaces to control the emission of gas from the flow distributor.

Abstract: A fiber manufacturing apparatus including a spinner, fixed to one end of a rotatable shaft and equipment for supplying at least one molten thermoplastic material to the spinner is provided. The spinner includes a radial wall and an outer peripheral wall. The radial wall extends radially out from the shaft and has an outer periphery. The peripheral wall is disposed around the outer periphery of the radial wall and has a plurality of orifices for centrifuging fibers from at least one molten thermoplastic material. The spinner is operatively adapted to be radially balanced during the centrifuging operation. By being so balanced, the spinner is less likely to exhibit temperature induced deformation that introduces undesirable process variables during the fiber manufacturing process.