A pre-failure indicator system for determining a degradation or failure condition includes a rope having an elongated structural strand and a pre-failure indicator strand. The pre-failure indicator strand has a tensile strength less than a tensile strength of the structural strand. The pre-failure indicator strand constructed of a conductive wire. The pre-failure indicator strand is configured to fail when the rope is subject to tension that exceeds the tensile strength of the structural strand. An indicator generates a detectable signal when the pre-failure indicator strand fails. A transceiver detects the detectable signal. The transceiver is configured to transmit a warning upon receipt of the detectable signal.
Roundslings with radio frequency identification pre-failure warning indicators comprise radio frequency identification tags, radio frequency identification tag sensors, and radio frequency signal receivers that inform a user of a pre-failure condition with the roundsling. The radio frequency tags may be affixed to one or more of an indicator yarn, a strand of the roundsling core, a dedicated strand of a pre-failure indicator assembly, or a ring of the pre-failure indicator assembly. The radio frequency tags may be active or passive, and active radio frequency tags may comprise a shield that block a signal transmitted from the tag.
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
Produits et services
(1) Non-metal slings, namely, cargo slings, lifting slings, industrial round slings comprised of separated load bearing cores inside tube covers formed in an endless loop used to lift heavy loads, non-metal industrial slings for loading and towing, bridle slings, flip-over slings.
(1) Device used to protect slings used in rigging, namely, an edge protector pad made of synthetic fibers that reduces damage and wear to a sling; edge protector pads made of synthetic fibers for use with industrial slings.
(1) Industrial metal slings for lifting, loading, towing and transporting heavy loads; wire rope slings; metal cable sling for carrying loads constructed from a single length of cable; lifting system comprising a plurality of wire rope slings wrapped together; slings used in rigging.
An apparatus for manufacturing industrial slings which is especially adapted for making roundslings. The apparatus can make slings having one load-lifting core or multiple load-lifting cores.
A sling for industrial lifting made of a load-bearing core (1) and a cover (2). The cover (2) protects the plurality of yarns (3) that make-up the core (1). Each core yarn (3) is made of a number of core threads (4) twisted together. The core yarns (3) are twisted together where the twist is in the. same direction as the individual core strands and a different direction than the twist of the cover (2). The present invention describes the method of twisting the core yarns (3) together by inserting core yarns (3) substantially parallel into a cover (2) that has a twist opposite of each core strand. As the core strands are inserted into the cover (2), the twists of the individual core yarns (3) interact with the twist of the cover (2), resulting in the core yarns (3) twisting together.
Industrial slings, especially those made from non-metal materials, may be damaged by the edge or corner of the object being lifted. The present invention is a protection apparatus that protects slings from both abrasion damage and cutting damage during a lift.
An edge protector, including a flexible body portion, spacers, and mating straps, that protects slings from both abrasion damage and cutting damage caused by a heavy object being lifted.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Signalling apparatus, namely, a pre-failure warning indicator for use in non-metal industrial slings.
(2) Pre-failure warning indicator using a warning streamer for testing the soundness of industrial non-metal slings; predictable pre-failure warning indicator using a warning streamer for use with an industrial sling; pre-failure warning indicator being incorporated into an industrial non-metal sling and being designed to fail before the load-bearing core of the sling fails in order to warn users that the sling may be unusable at its rated capacity by providing a visual indication via an elongated warning strand; pre-failure warning indicator using a warning streamer that allows a user to conduct a non-destructive pass/fail inspection of an industrial sling, namely, for use with non-metal or synthetic slings; pre-failure warning indicator utilizing a warning streamer that can be manufactured into an industrial sling for providing physical and visual feedback to a user when said industrial sling has been damaged by, for example, an overload condition, abrasive wear, exposure to chemicals/acid, an environmental condition, namely, excessive heat, cold, pollutants, ultraviolet sunlight.
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
Produits et services
(1) High performance synthetic fiber used as flexible, high strength core lifting strands for use in the manufacture of heavy duty industrial slings subjected to heavy loads.
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
Produits et services
Synthetic fiber, especially for use in the manufacture of flexible, high-strength core of industrial slings designed for lifting, loading, moving and towing heavy loads; hybrid yarn, especially of use in the manufacture of the core of non-metal slings used in rigging.
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
22 - Cordes; filets; tentes, auvents, voiles et sacs; matières de rembourrage
Produits et services
(1) Metal and non-metal industrial slings for heavy loading and towing; sling coupling links, wire rope fittings, chain saddle rings, turnbuckles, anti-abrasion wear pads and rigging testing equipment for proof of load lifting capacity and break testing.
