Abstract: An attachment device for attachment to a pathway comprising a body having: a top surface for receiving foot traffic thereon; at least one point of flexure; and at least one arm extending from the point of flexure with the arm moveable about the point of flexure, the at least one arm configured to engage the pathway or a structural member of the pathway, wherein when engaged, the at least one arm secures the device to the pathway, wherein engagement of the at least one arm results in the device being compressively secured to the pathway in between two component members of the pathway.

Abstract: A system for detecting deformation of a fan for an aeroengine, the fan including a rotor including plural blades made of composite material including woven fibers. At least one of the fibers in each of the blades is an optical fiber including at least one portion defining a Bragg grating. The system further includes a transceiver connected to the optical fiber and configured to send an optical signal into the optical fiber and to receive an optical signal in response from the optical fiber, and a detector module connected to the transceiver to detect deformation of the fan when the received optical signal presents correlation with a predetermined signature of a damped impact on a blade at a determined speed of rotation. This deformation may be the result of a foreign object impacting against a blade of the fan or may follow from variation in an internal defect.

Abstract: A capacitive sensor for measuring the clearance between the apex of the vanes of a rotor and the inner surface of an abradable coating covering the inner surface of a turbomachine casing, the clearance measuring capacitive sensor including a first electrode the material of which is abradable so as to get worn upon contacting an apex of a vane, the material of the first electrode having a degree of wear substantially identical to the degree of wear of the material of the abradable coating.

Abstract: A device for measuring vibration amplitudes of the blade tips in a turbomachine is provided. The device includes a support mounted in an orifice of a casing of a turbomachine, in which are housed two optical guides for the emission and reception of a light signal exiting inside the casing across from the tips of the blades of a turbine wheel Each optical guide includes an optical fiber connected by a mechanical connector to a needle of which the core is made of a material able to transmit a light signal and which is resistant to temperatures less than or equal to 1100° C. and which exits at its distal end in the casing across from the blade tips.

Abstract: A method for measuring the deformation of a turbo-machine blade including: a step of positioning at least one accelerometer onto a local point of the turbo-machine blade; a first step of measuring the centrifugal force, by the accelerometer, at the local point of the turbo-machine blade along the given measurement direction at a first predetermined speed; a second step of measuring the centrifugal, at a second predetermined speed; a step of determining the angular displacement of the measurement direction of the accelerometer relative to the centrifugal direction as a function of the first acceleration measurement and the second acceleration measurement, said angular displacement corresponding to an angular deformation of the local point of the turbo-machine blade.

Abstract: A system for detecting deformation of a fan for an aeroengine, the fan including a rotor including plural blades made of composite material including woven fibers. At least one of the fibers in each of the blades is an optical fiber including at least one portion defining a Bragg grating. The system further includes a transceiver connected to the optical fiber and configured to send an optical signal into the optical fiber and to receive an optical signal in response from the optical fiber, and a detector module connected to the transceiver to detect deformation of the fan when the received optical signal presents correlation with a predetermined signature of a damped impact on a blade at a determined speed of rotation. This deformation may be the result of a foreign object impacting against a blade of the fan or may follow from variation in an internal defect.

Abstract: A capacitive sensor for measuring the clearance between the apex of the vanes of a rotor and the inner surface of an abradable coating covering the inner surface of a turbomachine casing, the clearance measuring capacitive sensor including a first electrode the material of which is abradable so as to get worn upon contacting an apex of a vane, the material of the first electrode having a degree of wear substantially identical to the degree of wear of the material of the abradable coating.

Abstract: A device and method to measure times of passage of blade tips in a turbine engine by a capacitive sensor mounted on a casing in register with a path followed by the tips of blades of a compressor wheel of the turbine engine. The sensor includes at least one elongate electrode fastened to an inside face of the casing and oriented obliquely relative to the path of the blade tips.

Abstract: A turbine engine stage including a rotor wheel including a plurality of blades surrounded on an outside by a casing including a layer of abradable material on its inside surface facing free ends of the blades. At least one plane sensor for measuring clearance at blade tips is carried by the inside surface of the casing and is covered by the layer of abradable material.

Abstract: An Ethernet protection system includes an Ethernet communication device operable to be connected to first and second Ethernet lines forming a parallel connection. The Ethernet communication device is able to select the first Ethernet line and transmit and receive data over the first Ethernet line, and upon detecting a failure in the first Ethernet line, automatically select the second Ethernet line and transmit and receive data over the second Ethernet line.

Abstract: An interface for transmitting and receiving service channel frames over an Ethernet includes an Ethernet physical layer and a physical service channel. The Ethernet physical layer is configured to transmit and receive Ethernet frames over an Ethernet physical medium. The physical service channel is configured to transmit and receive service channel frames over the Ethernet physical medium. In operation, the physical service channel transmits the service channel frames within inter-frame gaps defined by the Ethernet frames so as not to interfere with the transmission or receipt of the Ethernet frames.

Abstract: An Ethernet protection system includes an Ethernet communication device operable to be connected to first and second Ethernet lines forming a parallel connection. The Ethernet communication device is able to select the first Ethernet line and transmit and receive data over the first Ethernet line, and upon detecting a failure in the first Ethernet line, automatically select the second Ethernet line and transmit and receive data over the second Ethernet line.

Abstract: A system for transporting traffic is provided. The system transports traffic from a first network access path over a transport network path having multiple channels and transports traffic from a second network access path over the same transport network path. The system transports the traffic using transport network path channels wherein the bandwidth of the first network access path is higher than the capacity of any of the transport network path channels and wherein the bandwidth of the second network access path is higher than the capacity of any of the transport network path channels. The system allocates a first quantity of the transport network path channels for transporting traffic from the first network access path. The system allocates a second quantity of the transport network path channels for transporting traffic from the second network access path. And, the sum of the first quantity plus the second quantity is less than or equal to the total number of channels in the transport network path.

Abstract: A plastic bag carrier to be used by an individual for lifting and carrying filled plastic grocery bags from the individual's motor vehicle to a desired location inside the individual's home. The plastic bag carrier comprises a support frame having opposite first and second ends, and a handle opening formed therein between the first and second ends for accommodating insertion of a user's hand. The rigid support frame can be a single piece structure formed from molded plastic material. The support frame includes at least one upwardly and inwardly extending hook integrally molded thereto at each of the first and second ends, about which flexible plastic bags can be hung. In an alternative embodiment, the support frame is provided with two handle openings so as to allow the user to grasp the support frame with both hands.