A multilayer tube, particularly for chemical and food-related fluids, which includes, in succession from the inside outward a first layer constituted by a tubular sheath that is at least externally corrugated and which defines the duct for the fluid. The tube further includes at least one second layer, which has an inner layer, chosen from between a rubberized fabric and an elastomeric material with textile reinforcement, which is arranged on the first layer, and an outer coveringwhich is arranged on the inner layer.

The present invention provides an identifiable armored cable sheath. In accordance with an aspect of the present invention, there is provided an identifiable armored cable sheath comprising: an armored cable sheath having an outer surface, and a visual indicia applied on the outer surface of the cable sheath in a patterned arrangement, wherein the visual indicia possesses visibility features in low light. Another aspect of the present invention provides a method of making an identifiable armored cable sheath comprising: providing an armored cable sheath, and applying a visually distinctive tape to the outer surface of the sheath in a patterned arrangement.

The present invention provides an identifiable armored cable sheath. In accordance with an aspect of the present invention, there is provided an identifiable armored cable sheath comprising: an armored cable sheath having an outer surface, and a visual indicia applied on the outer surface of the cable sheath in a patterned arrangement, wherein the visual indicia possesses visibility features in low light. Another aspect of the present invention provides a method of making an identifiable armored cable sheath comprising: providing an armored cable sheath, and applying a visually distinctive tape to the outer surface of the sheath in a patterned arrangement.

The present invention provides an identifiable armored cable sheath. In accordance with an aspect of the present invention, there is provided an identifiable armored cable sheath comprising: an armored cable sheath having an outer surface, and a visual indicia applied on the outer surface of the cable sheath in a patterned arrangement, wherein the visual indicia possesses visibility features in low light. Another aspect of the present invention provides a method of making an identifiable armored cable sheath comprising: providing an armored cable sheath, and applying a visually distinctive tape to the outer surface of the sheath in a patterned arrangement.

An operator is enabled to easily identify the normal attachment direction of a ground clip and set the ground clip in a correct direction. Provided is a hose attachment structure in which a ground clip is attached over a grounded electroconductive pipe and a flexible hose inserted onto an outer face of the electroconductive pipe, wherein the ground clip includes a coil part that is attached to the outer face of the electroconductive pipe and an outer peripheral surface of the flexible hose and a pair of pinch parts that protrudes from both end parts in an axial direction of the coil part and faces each other, and one pinch part among the pair of pinch parts has an asymmetrically-shaped indicator part having directivity in the axial direction of the coil part.

Apparatus for detecting an electrical insult to a gas tubing system and dissipating the energy from such insult. The system includes tubing and an injury mitigator. The tubing includes a conduit, an insulating layer, a conductive layer, and a jacket. The conduit is connected to earth ground. The conductive layer is electrically insulated from the conduit by the insulating layer. The mitigator includes an insult event detection circuit and an energy dissipation circuit, both electrically connected between the conductive layer of the tubing and ground. Insult indication is provided by a fusible link. Energy dissipation is provided by the fuse, a transient voltage suppression (TVS) device, and/or a spark gap. The TVS device has a setpoint voltage less than the breakdown voltage of the spark gap, ensuring that the TVS device actuates before the spark gap conducts.

The present invention relates to a hose line (1) for transporting abrasive media with an electrically conductive reinforcing element (5) running in or on the hose wall (2) and extending in the hose direction (6), wherein an insert (7) made of electrically conducting material is at least partially embedded in the hose wall (2) and extends in the hose direction (6) at a distance from the reinforcing element (5).

A tubing apparatus includes corrugated tubing including convolutions of peaks and valleys in the body of the tubing; an electrically conductive or semi-conductive, polymer jacket disposed along an exterior length of the corrugated tubing; wherein the jacket provides protection to the inner corrugated tubing from damage resulting from electrical arcing at levels ranging from at least 9 coulombs at a waveform of 10 microseconds?1000 microseconds.

Apparatus for detecting an electrical insult to a gas tubing system and dissipating the energy from such insult. The system includes tubing and an injury mitigator. The tubing includes a conduit, an insulating layer, a conductive layer, and a jacket. The conduit is connected to earth ground. The conductive layer is electrically insulated from the conduit by the insulating layer. The mitigator includes an insult event detection circuit and an energy dissipation circuit, both electrically connected between the conductive layer of the tubing and ground. Insult indication is provided by a fusible link. Energy dissipation is provided by the fuse, a transient voltage suppression (TVS) device, and/or a spark gap. The TVS device has a setpoint voltage less than the breakdown voltage of the spark gap, ensuring that the TVS device actuates before the spark gap conducts. In one embodiment, at least one terminating connector

One aspect of the invention provides an elastomeric bushing including: a plurality of rigid members defining one or more internal annular ribs and one or more elastic members. The rigid members include: a first internal annular rib adapted and configured to engage a corrugation valley of corrugated tubing; and one or more trailing lips adapted and configured to extend through a central opening of a nut and engage said nut, thereby preventing axial movement of the bushing when a corrugated tubing is advancing through the bushing. The one or more elastic members are adapted and configured to: hold the plurality of rigid members in a substantially annular configuration; allow the plurality of rigid members to expand to allow a corrugation peak to pass under the first internal rib; and hold the plurality of rigid members against the corrugated tubing so that the first internal rib lies within a corrugation valley.