D03D37/00

Systems and methods for creating three-dimensional woven textile products
10392731 · 2019-08-27 · ·

Described herein are techniques for creating a three-dimensional woven textile products. A method includes rotating strands of warp yarns, where each strand of warp yarn is in a direction away from a surface, in a circular motion while moving a strand of weft yarn forwards and backwards in a direction parallel to the surface so as to cause the strand of weft yarn to alternately weave in and out of the strands of warp yarn. The method includes moving the strand of weft yarn in a direction away from the surface so as to cause the strand of weft yarn to alternately weave in and out of the strands of warp yarn at a different height to create a three-dimensional woven textile product. The method includes supplying at least one of the strand of warp yarn or the strand of weft yarn with a yarn generator.

CIRCULAR WEAVING MASCHINE AND METHOD FOR PRODUCING A HOLLOW PROFILE-LIKE FABRIC
20190153637 · 2019-05-23 ·

The invention relates to a circular weaving machine for weaving a weaving core (1), comprising at least one shuttle (5) which has a weft yarn bobbin (7) and can be moved along a circular continuous track around the weaving core (1), and warp coil devices (10), each of which having a warp yarn bobbin (11). According to the invention, the warp coil devices (10) are designed to be movable, the travel path of the warp coil devices (10) with the warp yarn bobbin (11) extending through a weaving plane (6) enclosed by the circular continuous track (2, 23).

CIRCULAR WEAVING MASCHINE AND METHOD FOR PRODUCING A HOLLOW PROFILE-LIKE FABRIC
20190153637 · 2019-05-23 ·

The invention relates to a circular weaving machine for weaving a weaving core (1), comprising at least one shuttle (5) which has a weft yarn bobbin (7) and can be moved along a circular continuous track around the weaving core (1), and warp coil devices (10), each of which having a warp yarn bobbin (11). According to the invention, the warp coil devices (10) are designed to be movable, the travel path of the warp coil devices (10) with the warp yarn bobbin (11) extending through a weaving plane (6) enclosed by the circular continuous track (2, 23).

Woven preforms, fiber reinforced composites, and methods of making thereof

Preforms for use in fiber-reinforced composites, fiber-reinforced composites, and methods for making thereof are disclosed. One method includes interweaving a plurality of warp yarns with a single weft yarn so as to form a tubular woven structure with a central axis. The preform can be woven using an endless or tubular weaving technique, and can be woven so as to have two or more diameters along a length thereof. The preform can include one or more layers of a fabric formed on or attached to one or both surfaces of the tubular woven structure. The end structure can be a part of a window frame, a wheel rim, or a combustor in a jet engine.

STRONG, FLEXIBLE, AND THROMBUS-FREE WOVEN NANOTEXTILE BASED VASCULAR GRAFTS, AND METHOD OF PRODUCTION THEREOF

The present invention relates to woven tubular nanotextiles, fabrication thereof using a weaving apparatus, and use thereof in vascular graft applications. The woven nanotextile conduit is 0.1 to 50 mm in diameter and includes a multitude of hierarchically arranged nanofibers. They are made from low strength bundled nanoyarns containing thousands of nanofibers with improved mechanical strength. The weaving apparatus interweaves the warp and weft yarns in longitudinal and transverse directions, resulting in a flexible and strong woven product. The physical and biological properties of the woven nanotextile were significantly enhanced when compared to non-woven nanofibrous form and conventional medical textiles. The nanotextile displayed superhydrophilic behavior in an otherwise hydrophobic material and when implanted as a vascular graft was robust, suturable, kink-proof and non-thrombogenic, with complete endothelialization of the graft luminal area.

System and method for manufacturing net shape preform from textile strips

A preform manufacturing apparatus comprising a supply of fiber strip, a moveable positive fiber strip delivery mechanism coupled between a desired lay down location and the supply of fiber strip to positively deliver and orient the supply of fiber strip to the desired lay down location, and an electronic unwinder coupled to the supply of fiber strip is described herein. The electronic unwinder is configured to interact with the moveable positive fiber strip delivery mechanism.

System and method for manufacturing net shape preform from textile strips

A preform manufacturing apparatus comprising a supply of fiber strip, a moveable positive fiber strip delivery mechanism coupled between a desired lay down location and the supply of fiber strip to positively deliver and orient the supply of fiber strip to the desired lay down location, and an electronic unwinder coupled to the supply of fiber strip is described herein. The electronic unwinder is configured to interact with the moveable positive fiber strip delivery mechanism.

ROTATING LOOM AND LOOM HOLDER FOR KNITTING
20180209078 · 2018-07-26 ·

A swiveling hand loom includes a support base, a plurality of supports connected to the base and extending vertically to support a loom having a plurality of pegs thereon in elevated fashion. The base includes a swiveling mechanism permitting the loom to swivel relative to the support base which allows the knitter to work on his or her lap and not have to move the loom position.

SYSTEMS AND METHODS FOR AIR ENTANGLEMENT

A loom system for making a fibrous preform may comprise a base, a bedplate coupled to the base, wherein the bedplate is configured to rotate about an axis of rotation, and an air entangling module coupled to the base. The air entangling module may comprise an air entangling head coupled to an outer support and an inner support, wherein the air entangling head is configured to apply a jet of air toward the bedplate at an entangling zone. The air entangling head may have freedom of motion along the outer support and the inner support, and may be configured to rest on top of a fibrous layer.

Circular loom of mannequin
09856585 · 2018-01-02 · ·

A rotatable loom with a mannequin such that the loom can be used to produce a hand-made single piece of cloth or cloth product in a three dimension with a thread of choice. The loom has two or more frames with graded rings such that the rings help in achieving a cylindrical or cubic shape cloth.