Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: Fibers having a reduced amount of glare are disclosed. Products made therefrom the fibers are also disclosed. Methods of making the fibers and products are further disclosed.

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: Fibers having a reduced amount of glare are disclosed. Products made therefrom the fibers are also disclosed. Methods of making the fibers and products are further disclosed.

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: Fibers having a reduced amount of glare are disclosed. Products made therefrom the fibers are also disclosed. Methods of making the fibers and products are further disclosed.

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and alt foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A composite yarn formed of at least two different individual polymeric fibers may be spun by directing at least two streams of different polymer melts (e.g., polymer melts of different colors and/or characteristics) to a spin pack such that one of the streams has a greater volumetric throughput as compared to the volumetric throughput of the other stream. The polymer streams are each distributed within the spin pack among individual filtration chambers so that the filtration chambers receive substantially the same volumetric throughput allotment of the polymer melt streams. In such a manner, the polymer melt streams are distributed among the filtration chambers in substantially equal throughput allotments even though the total throughput of the melt streams of each of the different polymers may be unequal. The filtered polymer melt streams may then be directed through fiber-forming orifices of a spinneret plate to form the composite yarn.

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A spin pot for spinning synthetic polymer fibers has a polymer filter, a spinneret downstream of the polymer filter, and an electroformed perforated screen positioned between the polymer filter and the spinneret. The screen is most preferably electroformed nickel and includes an annular non-perforated region which bounds a perforated central region. The electroformed perforations prevent debris that may become dislodged from the filter unit from blocking the spinneret orifices thereby creating undesired "slow-holes".

Abstract: Individual differently colored or colorable feed filament ends are withdrawn from respective creel-mounted packages and passed through a separation guide. The separation guide serves to "normalize" the filament end-to-end positions and tensions. That is, the separation guide will cause the individual feed ends to be in specific predetermined positions relative to the other feed ends regardless of the position of the package on the creel. In addition, the separation guide will effectively cause a short length of each feed end to be parallel to, and separated by a substantially uniform distance from, corresponding lengths of the other feed ends. This parallel alignment of individual end lengths and the substantially uniform filament end-to-end positioning thereby imparts substantially uniform tensions on the feed ends while substantially maintaining their respective positions in the combined yarn product relative to one another.

Abstract: A composite yarn formed of at least two different individual polymeric fibers may be spun by directing at least two streams of different polymer melts (e.g., polymer melts of different colors and/or characteristics) to a spin pack such that one of the streams has a greater volumetric throughput as compared to the volumetric throughput of the other stream. The polymer streams are each distributed within the spin pack among individual filtration chambers so that the filtration chambers receive substantially the same volumetric throughput allotment of the polymer melt streams. In such a manner, the polymer melt streams are distributed among the filtration chambers in substantially equal throughput allotments even though the total throughput of the melt streams of each of the different polymers may be unequal. The filtered polymer melt streams may then be directed through fiber-forming orifices of a spinneret plate to form the composite yarn.

Abstract: A level comprises a frame including a working surface, a level vial containing bubble indicating means and having bubble registry means adapted to register a level position when the longitudinal axis of the vial is positioned in a horizontal plane, and selectively adjustable mounting means for adjustably mounting the level vial to the frame for variable, selective angular alignment of the longitudinal axis thereof with respect to the plane of the working surface whereby the preselected orientation of the bubble indicating means with the register means of the level vial indicates a pre-selected angular relationship of the longitudinal vial axis and the working surface when the working surface is in contact with a surface being measured.