A restraint net is provided for use in restraining a tight grouping of flowline elements where restraint lines are unusable. The restraint net includes a net body woven of one or more restraining ropes; and a net perimeter comprising one or more restraining ropes, surrounding the net body. The restraint net is configured to cover the tight grouping of flowline elements and being of sufficient tensile strength to restraint movement of the flowline elements in case of a failure or separation of the flowline elements in the tight grouping. A method is also provided of restraining a tight grouping of flowline elements where restraint lines are unusable. The method includes: providing the restraint net as described above; coupling a first point of the net perimeter to any one or more of an anchoring device, an adjacent restraint net or an adjacent restraint line; extending the net body over the tight grouping of flowline elements; and securing one or more further points of the net perimeter to one or more further anchoring devices, one or more further restraint nets, or one or more further adjacent restraint lines. Upon a failure or separation of the flowline elements, the restraining net restrains movement of the flowline elements.

A safety apparatus includes a safety fabric that in use is positioned in an access opening of a subsurface chamber. The safety fabric has a mesh with a plurality of mesh openings and a band formed around a perimeter of the mesh. At least one safety indicator is attached to the band by at least one strap. The safety indicator may be positioned outside of the access opening by extension of the strap when the safety fabric is positioned in the access opening. The subsurface chamber with the access opening may be an inlet chamber of a lift station.

An absorbent ecological fabric is provided, including: at least one first fiber element, each of the at least one first fiber element being absorbent and elongate, each of the at least one first fiber element being woven by a plurality of filaments. The absorbent ecological fabric can provide a large region for plants to attach and climb.

A safety apparatus includes a safety fabric that in use is positioned in an access opening of a subsurface chamber. The safety fabric has a mesh with a plurality of mesh openings and a band formed around a perimeter of the mesh. At least one safety indicator is attached to the band by at least one strap. The safety indicator may be positioned outside of the access opening by extension of the strap when the safety fabric is positioned in the access opening. The subsurface chamber with the access opening may be an inlet chamber of a lift station.

A web fabric includes a plurality of first threads and a plurality of second threads. Each of the first threads is made of at least one TPU (Thermoplastic polyurethane) filament. The first threads are arranged at intervals. The second threads are arranged at intervals and ties around respective one of the first threads so that the web fabric is formed with a plurality of through holes. Each of the second threads is knotted with the first threads to form a plurality of first knots. Each of the second threads is knotted itself between any two adjacent ones of the first threads to form at least one second knot. The first threads are separated apart by the at least one second knot to prevent the first threads from touching each other.

A web fabric includes a plurality of first threads and a plurality of second threads. Each of the first threads is made of at least one TPU (Thermoplastic polyurethane) filament. The first threads are arranged at intervals. The second threads are arranged at intervals and ties around respective one of the first threads so that the web fabric is formed with a plurality of through holes. Each of the second threads is knotted with the first threads to form a plurality of first knots. Each of the second threads is knotted itself between any two adjacent ones of the first threads to form at least one second knot. The first threads are separated apart by the at least one second knot to prevent the first threads from touching each other.

A netting material is knitted from at least two synthetic material yarns of which one is an opaque and the other is a transparent or translucent or different opaque yarn. A knitted netting material comprises a plurality of primary yarns knitted to form a mesh construction having an arrangement of primary apertures defined by yarn intersections and yarn connecting portions between yarn intersections, and a plurality of secondary yarns crossing over the primary apertures to form secondary apertures within the primary apertures.

A netting material is knitted from at least two synthetic material yarns of which one is an opaque and the other is a transparent or translucent or different opaque yarn. A knitted netting material comprises a plurality of primary yarns knitted to form a mesh construction having an arrangement of primary apertures defined by yarn intersections and yarn connecting portions between yarn intersections, and a plurality of secondary yarns crossing over the primary apertures to form secondary apertures within the primary apertures.

A containment apparatus and a method for installing the same is provided. The containment apparatus includes a plurality of panels, each of which extends along a height and comprises a panel perimeter including a plurality of perimeter portions, and a panel interior disposed within the panel perimeter. The plurality of perimeter portions includes an attachment border, a coil border, and a set of opposing side portions, which define a respective panel width therebetween. When the containment apparatus is in the installed position, the attachment border of a respective panel is operatively attached to the roof of a structure, such that the plurality of panels and at least one of the exterior walls of the structure cooperate to define a periphery of an unmanned aerial vehicle (UAV) containment area. The UAV containment area defines a controlled environment, directly adjacent to the structure, within which UAV may operate to inspect the structure.

A net includes at least two ropes (2, 4), at least one mesh, wherein at least one corner of a mesh is formed by a knot (15) formed by two of the ropes (2, 4). The knot includes a first and a second opening (6, 8) in the first rope (2) through which the second rope (4) passes, and a first opening (10) in the second rope (4) through which the first rope (2) passes. A part of the first rope (2) is being positioned in the first opening (10) in the second rope (4) being in between the first and second opening (6, 8) of the first rope (2).