WO2020046621A1 - Termination installation method for long cables - Google Patents
Termination installation method for long cables Download PDFInfo
- Publication number
- WO2020046621A1 WO2020046621A1 PCT/US2019/047125 US2019047125W WO2020046621A1 WO 2020046621 A1 WO2020046621 A1 WO 2020046621A1 US 2019047125 W US2019047125 W US 2019047125W WO 2020046621 A1 WO2020046621 A1 WO 2020046621A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cable
- termination
- short
- strands
- long
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
- F16G11/04—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps
- F16G11/042—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps using solidifying liquid material forming a wedge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
- F16G11/14—Devices or coupling-pieces designed for easy formation of adjustable loops, e.g. choker hooks; Hooks or eyes with integral parts designed to facilitate quick attachment to cables or ropes at any point, e.g. by forming loops
- F16G11/146—Eyes
Definitions
- This invention relates to the field of tensile strength members. More specifically, the invention comprises a method for creating a long tensile strength member with a high- performance termination or terminations that can be pre-tested using equipment that is limited to testing shorter tensile strength members.
- Tensile strength members must generally be connected to other components in order to be useful.
- a flexible cable provides a good example.
- the cable must generally include some type of end-fitting so that it can be transmit a load.
- a cable used in a hoist generally includes a lifting hook on its free end. This lifting hook may be rigged to a load.
- the assembly of an end-fitting and the portion of the cable to which it is attached is generally called a “termination.”
- a tough steel lifting hook is commonly attached to a wire rope to create a termination.
- pellet socket is often used to create the termination.
- The“spelter socket” involves an expanding cavity within the end-fitting. A length of the wire rope is slipped into this cavity and the individual wires are splayed apart. A liquid potting compound is then introduced into the expanding cavity with the wires in place. The liquid potting compound transitions to a solid over time and thereby locks the wire rope into the cavity.
- the potting compound used in a spelter socket is traditionally molten lead and - more recently - is more likely a high-strength epoxy.
- the term“potting compound” as used in this description means any substance which transitions from a liquid to a solid over time. Examples include molten lead, thermoplastics, UV-cure or thermoset resins (such as two-part polyesters or epoxies). Other examples include plasters, ceramics, and cements.
- the term “solid” is by no means limited to an ordered crystalline stmcture such as found in most metals. In the context of this invention, the term“solid” means a state in which the material does not flow significantly under the influence of gravity.
- Terminations on wire rope are quite common in hoists and cranes. These terminations are well understood and their performance and reliability have been established over many decades. In recent years the opportunity to replace wire ropes with modern, high-strength synthetic cables has arisen. Many different materials are used for the filaments in these synthetic cables. These include KEVLAR, VECTRAN, PBO, DYNEEMA, SPECTRA, TECHNORA, ZYLON, glass fiber, and carbon fiber (among many others). In general the individual filaments have a thickness that is less than that of human hair. They also tend to have low surface friction. They are quite different from steel wires.
- Terminations are used for synthetic filament cables, but they assume a different foim than those used for wire rope. Synthetic filament cables tend to be made by braiding multiple strands together. While the individual filaments are made using various modern processes, the construction of the cable itself tends to follow the patterns established for natural-fiber ropes many years ago. Perhaps not surprisingly, the methods used to create a termination tend to follow the old patterns for ropes as well.
- FIGS. 1-2 shows a traditional method for adding a termination to one end of a synthetic cable.
- Cable 10 is made from advanced high-strength synthetic filaments. It is known to join multi-stranded cables using weaving or splicing methods. In these methods, connections are made by interweaving strands of one section of cable with strands of another section of cable (sometimes the sections lie in the same cable and sometimes they do not).
- FIG. 1 shows an exemplary prior art operation.
- Cable 10 includes eight individual strands of synthetic filaments. Each strand may contain thousands or even millions of individual filaments, but the prior art weaving operations do not typically break the cable down beyond the strand level.
- the depiction of cable 10 is representative rather than entirely accurate.
- the example shown has 8 separate strands. The strands would typically be interwoven with 2 pairs of strands in a left-hand helix and two pairs in a right-hand helix.
- the objective of the example shown in FIGS. 1 and 2 is to weave a length of the cable back on itself to form an“eye” on the cable's end.
- Considerable mechanical skill and dexterity is required to form an eye on the end of a cable and in other instances to join lengths of cable together.
- persons having these skills are commonly found in industries where large cables are used.
- the strength and reliability of cable splices made by such persons are well understood and accepted.
- these proven methods of comiection do not require pretesting and can even be done in the field, in a non-controlled environment, by trained personnel. This is even true for critical applications.
- FIG. 1 a length of strands proximate the cable's end is unwoven to create separated strands 14.
- the end of the cable is bent into a loop or bight, sometimes around a reinforcing element such as thimble 12.
- FIG. 2 shows the continuation of the operation.
- the weave of the strands within the cable is loosened so that separated strands can be threaded back into the cable in a prescribed pattern. Interwoven section 24 is thereby created.
- the loose ends of separated strands 14 are typically cut off (after a sufficiently long interwoven section 24 has been created) and taped or otherwise secured.
- the eye splice 16 on one end of cable 10.
- efficiency means the ratio of the breaking stress of the complete cable with the termination attached versus the breaking stress of the cable without a stressed area such as in the middle of the cable.
- a perfectly efficient cable would have an efficiency of 100%, including the termination.
- synthetic fiber cables achieving this or nearly this efficiency is commonly possible with many forms of prior art splices.
- the eye splice is strong, it is ill-suited to many applications. For example, while one could use an eye splice to attach a lifting hook to the end of a hoist line, the eye splice is unable to withstand battering forces very well. In addition, the diameter of the eye splice will be too large in many instances. It would be advantageous to instead connect a hook or other device directly to the synthetic cable, analogous to the way a spelter socket is connected to a wire rope. Fortunately, the technology to create such terminations exists.
- An end-fitting is commonly attached to a larger synthetic filament cable by use of a potting compound.
- Liquid potting compound (such as an epoxy or a polyester) is added to a cavity in the fitting after a length of filaments has been placed within the fitting. It is preferable to hold the components in a stable configuration while the potting compound cures—which may take 12 hours or more. Temperature and other variables are preferably controlled during this process, as are the properties of the potting compound itself.
- the potting compound may be added to the cavity in a variety of ways, including pre-wetting, infusing, etc.
- Exemplary applications include hoisting cables and mooring cables where a known and predictable strength is very important. This requirement creates challenges in the field of synthetic-filament cables since conventional tensile testing equipment used in the industry is (1) limited in strength and (2) limited in length.
- a typical large test frame can pull loads of about 1,000 tons. The length of such a test frame is only about 20 meters though. Longer test frames do exist (some over 100 meters) but they are very rare. When tensile members are made longer than the length of the readily available test frame, they are rarely able to be tested properly given the practical constraints that exist in industry. This creates limitations on what can be tested and impacts logistics on any large or remotely used tensile members requiring specialty terminations.
- splicing techniques may not be suitable for long lines and are often not ideal from a termination perspective.
- a termination analogous to those used for wire rope.
- Examples include termination with a hard end such as a hook, a threaded stud, a small eye, or a clevis on the end of a spelter or resin socket, etc.
- Such hard, versatile, and generally compact ends are well known and thus a desirable option in most industries where large and/or long cables are used.
- an offshore steel crane wire would typically have a very compact, potted socket made from steel and including a clevis or eye connection.
- FIG. 3 a sectional view— shows an example of an advanced termination.
- Anchor 18 includes an internal cavity 20.
- a length of strands from cable 10 is placed within this cavity.
- Preferably the strands are splayed apart in some form of expanding cavity (though other techniques may be used).
- a liquid potting compound is placed within the cavity (either before, during, or after the strands are added).
- the liquid potting compound transitions to a solid over time to create potted region 22. Once solidified as shown, the strands within potted region 22 are locked in place and anchor 18 is secured to the end of the cable.
- Some feature for transmitting a load to the cable is typically included. In this example loading feature 21 assumes the form of a loop.
- FIG. 10 shows an assembly that is commonly referred to as a“spike and cone” termination.
- a length of strands is splayed apart in cavity 20 as for the potting example. However, rather than using potting compound, they are mechanically secured.
- Cone 62 is introduced into the center of the strands.
- Compression plug 64 is then screwed into the open end of anchor 18 via threaded engagement 66. The strands are then mechanically clamped in place.
- anchor 18 can be made quite tough.
- the anchor may be made of stainless steel so that it can endure an abusive environment. Such a termination is advantageous in many instances where a synthetic cable is used.
- Countless forms of synthetic fiber cable terminations can be conceived, including those made entirely of composites for example. Any such versatile termination that is not a splice, and especially those which are more compact in nature, have many potential limitations as covered previously. These limitations create the absolute need for production in a controlled setting (which is not in the field).
- the present invention comprises a method for creating a composite cable having at least one advanced termination on at least one end.
- An advanced termination is added to an end of a short synthetic tensile strength member.
- the strength of the tensile strength member and termination is then tested.
- the short cable is spliced onto a long tensile member of a comparable type using prior art splicing techniques.
- the union of the short tensile member and the long tensile member creates a “composite” cable having an advanced termination on at least one end. In most applications it is preferable to set the length of the short cable so that the interwoven splice will exist at a desired location.
- FIG. 1 is a perspective view, showing the creation of a prior art eye splice.
- FIG. 2 is a perspective view, showing the continuation of the operation of FIG. 1.
- FIG. 3 is a sectional elevation view, showing the addition of a high-performance termination to one end of a synthetic cable.
- FIG. 4 is a perspective view, showing a terminated short cable made according to the present inventive process.
- FIG. 5 is a perspective view, showing a composite cable made according to the present invention.
- FIG. 6 is an elevation view, showing an exemplary test rig used to test a short cable made according to the present invention.
- FIG. 7 is an elevation view, showing an inventive cable in use on an oil platform.
- FIG. 8 is an elevation view, showing an inventive cable being used to hoist a load out of the water.
- FIG. 9 is an elevation view, showing an inventive cable being used on a dragline crane.
- FIG. 10 is a sectional elevation view, showing another type of high-performance termination.
- the present invention applies to virtually any type of tensile strength member using synthetic filaments as the core load bearing elements. This would include common device terms such as ropes, cables, cords, etc. Cables are used as examples of elastic strength members in the embodiments described. While the present invention is not applicable to steel wire cables, it is highly applicable to synthetic fiber cables that are used principally for load-bearing purposes, and the like.
- the main concept of the invention is to create a“short” tensile strength member with one or more advanced terminations attached.
- the term“advanced termination” is defined to mean any component that can be attached directly to a synthetic cable without using interweaving techniques.
- the term includes anchors attached by potting a length of filaments into an internal cavity and spike-and-cone type anchors, among others.
- The“short” assembly is tested so that its useful working load is known for certain.
- The“short” assembly is then joined to a“long” tensile strength member using prior art interweaving techniques.
- FIG. 4 shows two components of a composite cable before they are joined together.
- Short cable 26 includes an advanced termination that has been attached to one end as described previously.
- Cable 10 in this example is a“long cable” with no attached hardware.
- both cables are made of braided strands. The drawing does not depict the braided construction completely accurately, since it is quite complex, but the lines show that some of the braid components are twisted in one direction and some are twisted in the opposite direction.
- FIG. 5 shows the two cable segments joined together by an interwoven splice. Short cable 26 and long cable 10 are joined together by interwoven section 24. The result is a much longer“composite” cable.
- a typical“short” cable might range from as short as 5 meters to as long as 100 meters. In some rare cases this may be even longer.
- A“long” cable might range from 50 meters up to several km in length. When the terms “short” and“long” are used in this description, the reader should understand that the“long” cable is typically 4 or more times longer than the short cable. The determination of the length of each component is often dictated by the availability of testing equipment for evaluating the performance of the short cable, and the actual application, as will be explained subsequently.
- An interwoven splice is applicable to any synthetic tensile strength member made of multiple strands, so long as the strands are arranged in some ordered fashion.
- Cable strands are generally braided, twisted, or laid in a helical fashion. Generally, however braids such as a twelve strand are most common due their ease of splice-ability.
- a permanent joint can be created between two cables (or two parts of a single cable) by partly untwisting the strands and then interweaving them.
- Interwoven splices can be used to form a loop or eye on an end of a cable. They may also be used for joining the ends of two cables together (either directly or by forming an eye on one cable end that is interlocked with an eye on the other cable end).
- a section of completely unwoven strands are created on the end of one cable and a section of loosened (yet not unwoven) strands are created on the end of a second cable.
- the completely unwoven strands on the first cable are then woven into the voids between the loosened strands on the second cable in a prescribed and repetitive fashion.
- a specified number of weaves are created. Any excess material from the unwoven strands of the first cable is then removed and the free ends are secured by any suitable method, such as taping or whipping.
- Terminations such as shown in FIGS. 3 and 10 are preferably created under controlled conditions. This will typically be a factory production facility, though a smaller scale facility could be set up to handle it as well.
- cable and anchor alignment is preferably maintained over the cure time of the potting compound. This may take a day or even longer.
- the strand aligmnent within the cable also dictates the creation of a constrained length of cable extending out of the anchor.
- Potting compound mix ratios are important, as are other factors such as the ambient temperature. Preferably many conditions are controlled in order to create a strong and repeatable result. Even with the best process controls, however, these less conventional, compact forms of terminations are inherently less proven and much more susceptible to breaking efficiency loss and general breaking scatter due to processing inconsistencies or errors. Thus a critical element of quality control for such terminations is the proof testing process, and this is especially needed on critical applications such as lifting, securing, towing, mooring, etc.
- FIG. 6 schematically depicts one of many possible testing rigs for a short cable 26 with an attached anchor 18.
- Cables made of synthetic filaments tend to have low surface friction and are not easy to grip. It is often important to apply very high tensile loads in the test. In many cases this will be a significant fraction of the calculated breaking strength of the cable. Thus, it is often not possible to apply this amount of tension through a fixture that simply grips the cable's exterior. Likewise, it is not desirable to knot a portion of the cable around a loading fixture since the knot will drastically reduce the cable's strength.
- FIG. 6 shows one end of short cable 26 being wrapped around dram 28. It is possible to wrap several turns of the cable around a drum of suitable diameter and thereby secure the cable's free end without over- stressing it.
- Test loading device 30 is attached to anchor 18 using a hook or similar feature. Tension may then be applied through test loading device 30 while drum 28 is held in position. In another version, test loading device 30 could be held in a fixed position while torque is applied to the drum.
- Other testing fixtures are obviously possible and the example provided is by no means limiting.
- a dummy or sacrificial end such as a spliced eye or potted termination could be applied to the opposing end.
- a conventional fixed point cable could be used in place of the drum, and this dummy or sacrificial end could then be removed if desired.
- the result of the test is that the cable can be certified as having been loaded to a specified amount with no problem resulting. Any defect in the manufacturing of the components or the assembly process may thereby be reliably detected.
- interwoven section 24 When properly executed, interwoven section 24 will have a break strength equal to or greater than the break strength of the cable itself. As explained previously, the break strength of the advanced termination (created by attaching anchor 18), depending on the design and method of manufacture, will commonly be somewhat less than the break strength of the cable (though possibly quite close).
- the“weak link” is the termination point.
- the termination has been tested (such as by the rig of FIG. 6) and certified to exceed a specified break strength.
- the assembly as a whole in FIG. 5 (a“composite cable”) may be certified as having a break strength in excess of the tested amount.
- long cable 10 is often extraordinarily long. It is not unusual for such a cable to be 15,000 meters or more in length. Such a cable is often rolled onto a large and heavy drum. It is not a simple matter to move such a large cable and bring it into a controlled facility for the addition of an anchor.
- a test such as shown in FIG. 6 must be carried out by a device on one end of the cable that engages the anchor and a device on the other end that engages the free end of the cable.
- the length of the cable being tested determines the length of the apparatus required to test it.
- the test of FIG. 6 shows the free end of the cable being wrapped around a drum and secured. Five or ten turns may be needed to adequately secure the cable to the drum. Applying the drum-wrap at the mid-point of the cable would likely produce slippage between the cable strands and a degradation of the cable's performance.
- the cable is preferably tested by holding it at its ends and applying tension.
- the distance between the drum and the test loading device 30 will determine the length of the cable that can be tested.
- a large facility might have a test fixture that is 50 meters in length, but a longer fixture is rare. It is also not generally feasible to have a“mobile” end point such as a moving vehicle. Static testing of such cables often requires huge tensile forces—such as 250,000 pounds. No vehicle remains stationary during the application of such a force. Even static structures must be carefully designed to withstand such forces. Since one of the significant features of the present invention is the actual testing of the advanced termination, it is important for short cable 26 to have only a moderate length. Preferably it is less than 100 meters in length and may in fact be much shorter. The length selected for short cable 26 will of course determine the location of the interwoven section.
- interwoven section 24 is thicker than the other portions of the composite cable. This added thickness can cause problems when running the interwoven section over pulleys or other devices. Thus, the location of the interwoven section is preferably considered when creating a composite cable.
- the pulleys and other feeding devices can be designed to accommodate the added thickness of interwoven section 24. However, it is generally undesirable to have interwoven section 24 pass around a pulley or other bend while it is heavily loaded.
- FIG. 7 shows one representative application for a composite cable made according to the present invention.
- Crane 34 is mounted on offshore oil platform 32, well above sea surface 38.
- Composite cable 36 extends down into the water where it is connected to pay load 42 resting on sea floor 40.
- sea floor 40 might lie at a depth of 3,000 meters below sea surface 38. It is apparent from this diagram that the interwoven section of composite cable 36 lies well underwater at this point and in fact will be quite close to sea floor 40.
- FIG. 8 shows a closer view of crane 34.
- Crane 34 includes tensioncarrying drum 48 which is used to pay off and reel in composite cable 36.
- the tension-carrying drum is also used to store the cable.
- Boom 35 mounts tip sheave 50, over which the cable passes.
- Max hook height 44 represents the maximum height to which the crane can lift the payload.
- the load imposed on the cable by payload 42 varies substantially depending upon whether the payload is immersed in the sea or lifted clear into the air.
- the weight of an object immersed in water is reduced by the weight of the volume of water displaced by the object.
- This concept is generally referred to as Archimedes' Principle. For a typical solid structure, its weight in water is less than 1 ⁇ 2 its weight in air. Crane designers working in offshore applications carefully consider Archimedes' Principle. The water's surface is not stationary in offshore applications but rather moves with each passing swell. Thus, there is often not a clearly defined surface level. Instead, the engineers refer to a“splash zone” having a lower boundary and an upper boundary. They consider that the payload could be lifted free of the water anywhere within this“splash zone.”
- Lower splash boundary 46 is shown in FIG. 8. At any time that payload 42 is lifted above this height it might in fact be free of the water and the composite cable would then be subjected to the full weight of the payload in air.
- the interwoven section never pass through top sheave 50.
- the short cable length would be determined as the length necessary to provide adequate lifting height for the payload while keeping the interwoven section below top sheave 50.
- FIG. 9 shows a different application with different selection criteria.
- Mining dragline crane 52 has a large boom 54 with an attached top sheave 50.
- Lifting cable 56 passes through top sheave 50 and down to bucket 60.
- Dragging cable 58 pulls bucket 60 toward the crane's cab during the digging cycle.
- interwoven section 24 is located far enough above anchor 18 to prevent its failing into the very hostile environment existing around the bucket and its associated rigging. However, interwoven section 24 is also located low enough so that it is never pulled over top sheave 50 during the normal operation of the dragline crane. Alternatively, the interwoven section might be located so that it always remains between top sheave 50 and the drum located in the body of the dragline crane. The reader will thereby perceive the advantages offered by a composite cable constructed of a short cable with an attached advanced termination that is connected to a long cable. Additional optional features and combinations include:
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19856318.1A EP3841244A4 (en) | 2018-08-21 | 2019-08-20 | Termination installation method for long cables |
CA3110172A CA3110172A1 (en) | 2018-08-21 | 2019-08-20 | Termination installation method for long cables |
AU2019330648A AU2019330648A1 (en) | 2018-08-21 | 2019-08-20 | Termination installation method for long cables |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US16/106,364 US10656033B2 (en) | 2015-02-02 | 2018-08-21 | Termination installation for long cables |
US16/106,364 | 2018-08-21 |
Publications (1)
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WO2020046621A1 true WO2020046621A1 (en) | 2020-03-05 |
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ID=69643038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2019/047125 WO2020046621A1 (en) | 2018-08-21 | 2019-08-20 | Termination installation method for long cables |
Country Status (4)
Country | Link |
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EP (1) | EP3841244A4 (en) |
AU (1) | AU2019330648A1 (en) |
CA (1) | CA3110172A1 (en) |
WO (1) | WO2020046621A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050204555A1 (en) * | 2004-03-22 | 2005-09-22 | Campbell Richard V | Moldable cable termination system |
US20120034025A1 (en) * | 2010-08-07 | 2012-02-09 | Gulf Copper | Cable Connection Systems and Methods |
US20140352867A1 (en) * | 2013-05-30 | 2014-12-04 | Delphi Technologies, Inc. | Integrated wire cable twisting, wrapping, and testing apparatus and method of operating same |
US20160223445A1 (en) | 2015-02-02 | 2016-08-04 | Richard V. Campbell | Versatile Termination Method for Long Cables |
WO2017072806A1 (en) * | 2015-10-27 | 2017-05-04 | Gamba Davide | Sliding cable safety device for conduits or similar equipments subject to pressure and corresponding installation comprising such safety device |
-
2019
- 2019-08-20 EP EP19856318.1A patent/EP3841244A4/en active Pending
- 2019-08-20 AU AU2019330648A patent/AU2019330648A1/en not_active Abandoned
- 2019-08-20 WO PCT/US2019/047125 patent/WO2020046621A1/en unknown
- 2019-08-20 CA CA3110172A patent/CA3110172A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050204555A1 (en) * | 2004-03-22 | 2005-09-22 | Campbell Richard V | Moldable cable termination system |
US20120034025A1 (en) * | 2010-08-07 | 2012-02-09 | Gulf Copper | Cable Connection Systems and Methods |
US20140352867A1 (en) * | 2013-05-30 | 2014-12-04 | Delphi Technologies, Inc. | Integrated wire cable twisting, wrapping, and testing apparatus and method of operating same |
US20160223445A1 (en) | 2015-02-02 | 2016-08-04 | Richard V. Campbell | Versatile Termination Method for Long Cables |
US9791337B2 (en) | 2015-02-02 | 2017-10-17 | Bright Technologies, Llc | Versatile termination method for long cables |
WO2017072806A1 (en) * | 2015-10-27 | 2017-05-04 | Gamba Davide | Sliding cable safety device for conduits or similar equipments subject to pressure and corresponding installation comprising such safety device |
Non-Patent Citations (1)
Title |
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See also references of EP3841244A4 |
Also Published As
Publication number | Publication date |
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AU2019330648A1 (en) | 2021-04-15 |
CA3110172A1 (en) | 2020-03-05 |
EP3841244A4 (en) | 2022-06-15 |
EP3841244A1 (en) | 2021-06-30 |
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