A porous body belt includes a body to be connected including a porous body, a connecting material A that is disposed on the body to be connected by spanning a gap between end portions of the body to be connected and contains a fiber A and a resin material A, and the resin material A penetrates at least a part of a void portion of the porous body of the body to be connected, and bonds the end portions of the body to be connected to each other.

A device, a method and a movable welding apparatus for thermal joining of respective two material sheets over a connecting piece arranged areally on a bottom side, wherein the material sheets are arranged with a respective side surface facing one another abutting against each other at least partially with a respective bottom side lying areally on a top side of the connecting piece are provided. In particular, the two material sheets and the connecting piece can be joined together in one pass.

A method for repairing rivet tape includes steps of cutting portions of the rivet tape on each side of a break to define at least three aligned coplanar rivet tape edges, abutting the at least three aligned coplanar rivet tape edges to define a seam, and joining the at least three aligned coplanar rivet tape edges to one another. The seam may define a Z shape. One or more rivets may be removed to expose rivet apertures on each side of the break before the steps of cutting, abutting, and joining. The step of joining is accomplished by at least one adhesive strip disposed on a surface of the rivet tape and dimensioned to overlie the at least one or more exposed rivet apertures. Adhesive strips may be disposed on each opposed surface of the rivet tape length. In other aspects, workstations comprise devices for practicing the described methods.

A pre-buried casing tube uses glass fiber reinforced resin as the raw material to enhance the operation strength of the pre-buried casing tube, extend the service life of the pre-buried casing tube, and reduce maintenance cost of the railway transport system. The pre-buried casing tube includes at least one casing tube body, each casing tube body including at least one retaining element, the retaining elements provided in intervals along one side of the casing tube, each casing tube body disposed adjacently so as to form a passage for a screw, each retaining element provided in the passage for the screw.

A synthetic turf seam integration template system and method is provided that includes a template having a planar base with a perpendicularly joined positioner. The planar base is configured with a longitudinal cutting edge with a predetermined curvature and an opposing longitudinal non-cutting edge. The positioner, which aids in moving the template, is attached to the non-cutting edge. Variations of the predetermined curvature patterns are disclosed. An optional connector allows connection of two templates to create a longer template for usage on longer seams. Also disclosed are methods of using the seam integration tool in creating an undetectable seam in synthetic turf.

A respiratory apparatus may employ ultrasonic welds. The ultrasonic welding may be used to join a variety of headgear, mask and accessory components. This process may enhance comfort, fit and/or performance of the joined components and/or overall mask assembly. A component may be a single layer component such as a textile or fabric, or a composite or multiple layer component such as fabric and foam composites, or outer fabric layers and inner spacer fabrics. Further, a component may be a strap, some other headgear component, a mask component, an accessory component or the like.

A protective tube attaching method, the protective tube protecting an electric wire of a wire harness, includes inserting the electric wire through a small diameter protective tube and a large diameter protective tube which covers and is shorter than the small diameter protective tube so as to be movable relatively thereto; positioning one end portion of the large diameter protective tube at one reference portion of the wire harness; moving the small diameter protective tube relatively to the large diameter protective tube positioned at the one reference portion, to thereby position the other end portion of the small diameter protective tube at the other reference portion of the wire harness; and fixing the other end portion of the large diameter protective tube in a state that the other end portion of the large diameter protective tube overlaps with an outer circumferential surface of the small diameter protective tube.

A method for strengthening a polyethylene tubular member. The polyethylene tubular member has an outer surface, a circumference, a wall thickness, and an area to be strengthened and the outer surface of the polyethylene tubular member contains polyethylene. The method contains the step of wrapping a fabric layer around the circumference of the tubular member at least two full rotations and covering the area to be strengthened. The fabric layer contains a plurality of interwoven tape elements with a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. The method also contains the step of applying heat and optionally pressure to the fabric layer bonding the tape elements of the fabric layer together and bonding the tape elements and the tubular member together.

An elongate hollow structure and method of constructing the hollow structure is described, whereby the hollow structure includes a radially inner portion and a radially outer portion adapted to be merged together to form a tubular wall structure. The method includes providing the radially inner portion, providing the radially outer portion about the radially inner portion, wherein a space exists between the radially inner and outer portions, the space containing a gas therein, and expanding the inner portion. The gas within the space between the inner and outer portions is arranged to be expelled as the inner portion is expanded.

Provided herein are ecologically friendly waterproof fabrics that include a base fabric having a body-facing surface and an outward-facing surface, and a hydrophobic, waterproof barrier disposed on the outward-facing surface of the base fabric. The base fabric may be a wicking fabric or may be treated with a compound that enhances wicking, and the hydrophobic, waterproof barrier may include a plastic polymer, polyurethane, polyethylene, and/or polytetrafluoroethylene. The waterproof fabrics also may include an abrasion-resistant coating and/or a PFC-free durable water repellant (DWR) agent disposed on an outward-facing surface of the hydrophobic, waterproof barrier, and one or both of the abrasion-resistant coating and/or PFC-free DWR agent may be discontinuous. Also provided are methods of making a waterproof fabric.