US20200039797A9 - Quick release shackle - Google Patents

Quick release shackle Download PDF

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Publication number
US20200039797A9
US20200039797A9 US15/742,794 US201615742794A US2020039797A9 US 20200039797 A9 US20200039797 A9 US 20200039797A9 US 201615742794 A US201615742794 A US 201615742794A US 2020039797 A9 US2020039797 A9 US 2020039797A9
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US
United States
Prior art keywords
shackle
actuator
locking
pin
jaw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US15/742,794
Other versions
US10752470B2 (en
US20180201483A1 (en
Inventor
Frank Pickersgill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Durham Lifting Ltd
Original Assignee
Durham Lifting Ltd
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Filing date
Publication date
Application filed by Durham Lifting Ltd filed Critical Durham Lifting Ltd
Publication of US20180201483A1 publication Critical patent/US20180201483A1/en
Publication of US20200039797A9 publication Critical patent/US20200039797A9/en
Application granted granted Critical
Publication of US10752470B2 publication Critical patent/US10752470B2/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/56—Towing or pushing equipment
    • B63B21/58—Adaptations of hooks for towing; Towing-hook mountings
    • B63B21/60—Quick releases
    • 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/24—Single members engaging the loads from one side only
    • B66C1/26—Single members engaging the loads from one side only with means for releasing the loads
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B45/00—Hooks; Eyes
    • F16B45/04—Hooks with sliding closing member
    • 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
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
    • F16G15/06—Shackles designed for attachment by joint pins to chain elements, e.g. D-shackles so called harp links; the D-chain links are classified according to the corresponding kind of chain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes

Definitions

  • the present invention relates to shackles and in particular to shackles arranged for the release of a supported load.
  • Shackles are used in many situations but the present invention is concerned with a shackle that is used to support a load.
  • Shackles having pins that may be removed under load are known.
  • an actuator in the form of a hydraulic ram is provided to pull the shackle pin out of its housing in the shackle.
  • One problem with this type of arrangement is that the load is carried directly by the hydraulic ram.
  • a shackle comprising a shackle body and a shackle jaw, wherein the shackle jaw is connected to the shackle body by a pivot element about which the shackle jaw and shackle body may pivot relative to one another, the shackle further comprising an actuator element and an actuator and a locking element, the locking element arranged to engage the shackle body and the shackle jaw in a locking configuration and to disengage from the shackle jaw in a release configuration, wherein the locking element is slidable along its longitudinal axis between the locking and release configurations and wherein the actuator element is arranged to slide along its longitudinal axes and wherein the pivot element, the actuator element and the locking element are connected to one another by a lever that is pivotally attached at one end to the shackle body and wherein the connection between the lever and the locking element and the actuator element permits pivotal movement and limited linear movement between the lever and the locking and actuator elements.
  • the pivot element may be a pin.
  • the actuator is preferably an hydraulic ram comprising a piston and cylinder and the actuator element is preferably the piston of the hydraulic ram.
  • the locking element may be a pin.
  • the shackle jaw may include a bore for receiving the locking element, which may be a locking pin.
  • the bore may be a through bore.
  • the bore may align with one or more bores in the shackle body.
  • connection between the lever and the locking element and the actuator element includes a pin extending through a slot.
  • the lever includes two slots of differing length.
  • the actuator is configured so that with the actuator element fully extended the locking element is in the release configuration.
  • the locking element when the locking element is in the release position it is housed within a part of the shackle body.
  • the shackle may further include a a shackle loop.
  • the shackle loop may be releasably attachable to the shackle body.
  • the shackle loop may be attached to the shackle body by a pin.
  • FIG. 1 illustrates side, top and bottom plan and end views of the quick release shackle of the invention
  • FIG. 2 is a schematic representation of a lever arm of the shackle illustrated in FIG. 1 ;
  • FIG. 3 is a front view of the shackle illustrated in FIG. 1 with a shackle link attached thereto, the shackle in a closed configuration;
  • FIG. 4 is a front view of the shackle shown in FIG. 3 with the shackle in an open configuration.
  • a shackle 1 comprises a body 2 formed from two spaced apart plates 2 a joined together by a through collar 2 b .
  • the shackle body 2 is connected to a rope or chain through the collar 2 b.
  • a shackle jaw 3 is attached to the body 2 by a pin 4 .
  • the shackle jaw 3 may pivot on the pin 4 .
  • a first pin 6 extends between and throughout the plates 2 a.
  • a second pin 7 is releasably mounted in aligned apertures in the plates 2 a .
  • the shackle jaw 3 is provided with an aperture that aligns with the apertures in the plates 2 a to fasten the shackle in the configuration shown in FIG. 1 .
  • a third pin 9 extends through the plates 2 a .
  • the pin 9 is the piston of a hydraulic ram 8 which is attached to one side of the body 2 .
  • Each of the first, second and third pins 6 , 7 , 9 have bifurcated end portions 6 a , 7 a , 9 a .
  • Each bifurcated end portions are provided with holes 6 b , 7 b and 9 b respectively for receiving a pin.
  • a lever arm 10 sits between the bifurcated end portions 6 a , 7 a and 9 a and is connects together the pins 6 , 7 and 9 .
  • the lever arm 10 is illustrated in detail in FIG. 2 .
  • the lever arm includes three apertures, 10 a - 10 c , each of a different shape.
  • the first aperture 10 a is circular and is configured to receive a pin passing through the holes 6 b in the bifurcated end portions 6 a of the pin 6 .
  • the second aperture 10 b is in the form of a slot 10 b and is configured to receive a pin passing though the holes 9 b in the bifurcated end portions 9 a of the pin 9 .
  • the third aperture 10 c is again in the form of a slot. However, the slot 10 c is more elongate than the slot 10 b .
  • the slot 10 c is configured to receive a pin passing through the holes 7 b in the bifurcated end portions 7 a of the pin 7 .
  • the pin 9 of the hydraulic ram 8 reciprocates along a fixed path.
  • the lever 10 is arranged to rotate about the pin extending through the holes 6 b .
  • the function of the slots 10 b is to accommodate this change in distance.
  • the pin 7 As the pin 9 a extends as described above, the pin 7 , which is held captive on the lever 10 , is pulled out of the side plates 2 a .
  • the pin 7 travels in a straight line along its own longitudinal axis.
  • the slot 10 c is sufficiently elongate to accommodate this change in distance.
  • the hydraulic ram 8 and pin 9 are configured such that with the pin 9 fully extended, the surface of free end of the pin 7 lies in substantially the same plane as the inner face of the plate 2 a that is proximate the lever 10 . In this way, when the jaw 3 is released the pin 7 remains in a position where it may be drawn back through the shackle jaw 3 and the plate 2 a which mounts the ram 8 .
  • Additional attachment members for attaching together the plates 2 a in the form of through collars or bushes may be provided and these may receive the pin 6 and the pin 9 .
  • FIGS. 3 and 4 show the shackle 1 with a shackle loop 20 attached to the shackle body 2 .
  • Attachment of the shackle loop 20 to the shackle body 2 is by means of a pin 21 which passes through a hole 20 a in each of the ends 20 ′ of the loop, and the collar 2 b .
  • the pin 21 has an end portion 22 .
  • the end portion 22 may be engaged to remove the pin 21 from the shackle loop 20 and shackle body 2 or insert the pin 21 into the aligned holes 20 a of the shackle loop and through the shackle body 2 .
  • FIG. 4 illustrates the shackle in the open configuration with the pin 7 withdrawn from the plates 2 a , allowing the jaw 3 to rotate about the pin 4 .
  • the drawings do not show a hydraulic pump.
  • the hydraulic ram 8 requires a source of pressurised hydraulic fluid for its operation.
  • the hydraulic pump may be a hand pump for example.
  • a load supported by the shackle 1 in the shackle jaw 3 is in fact supported by the pins 4 and 7 only, not by the hydraulic ram 8 and its piston, the pin 9 .
  • This configuration allows a lighter weight actuator to be used. Also, removing the load from the actuator is likely to lead to lower rates of wear and tear.
  • the pins 4 and 7 are much simpler and less costly to replace than a worn hydraulic cylinder.

Abstract

A shackle comprises a shackle body and a shackle jaw, the shackle jaw connected to the shackle body by a pivot element about which the shackle jaw and shackle body may pivot relative to one another. The shackle further comprises an actuator element and an actuator and a locking element, the locking element arranged to engage the shackle body and the shackle jaw in a locking configuration and to disengage from the shackle jaw in a release configuration. The locking element is slidable along its longitudinal axis between the locking and release configurations and the actuator element is arranged to slide along its longitudinal axes. The pivot element, the actuator element and the locking element are connected to one another by a lever that is pivotally attached at one end to the shackle body and wherein the connection between the lever and the locking element and the actuator element permits pivotal movement and limited linear movement between the lever and the locking and actuator elements.

Description

    RELATED APPLICATIONS
  • This application is a national stage entry under 35 U.S.C. § 371 of PCT/GB2016/052035, entitled “Quick Release Shackle” and filed Jul. 6, 2016. The prior application is herein incorporated by reference in its entirety.
    • FIELD OF THE INVENTION
  • The present invention relates to shackles and in particular to shackles arranged for the release of a supported load.
    • BACKGROUND OF THE INVENTION
  • Shackles are used in many situations but the present invention is concerned with a shackle that is used to support a load.
  • In certain load carrying situations there can be a requirement to jettison a load quickly, for example where a load is supported from a crane that is itself mounted on a water borne vessel, sudden changes in wave conditions can result in a situation where the load must be jettisoned.
  • Shackles having pins that may be removed under load are known. Typically, an actuator in the form of a hydraulic ram is provided to pull the shackle pin out of its housing in the shackle. One problem with this type of arrangement is that the load is carried directly by the hydraulic ram.
  • It would be desirable to provide a quick release shackle which may be released when the shackle is under load.
    • SUMMARY OF THE INVENTION
  • According to the invention there is provided a shackle comprising a shackle body and a shackle jaw, wherein the shackle jaw is connected to the shackle body by a pivot element about which the shackle jaw and shackle body may pivot relative to one another, the shackle further comprising an actuator element and an actuator and a locking element, the locking element arranged to engage the shackle body and the shackle jaw in a locking configuration and to disengage from the shackle jaw in a release configuration, wherein the locking element is slidable along its longitudinal axis between the locking and release configurations and wherein the actuator element is arranged to slide along its longitudinal axes and wherein the pivot element, the actuator element and the locking element are connected to one another by a lever that is pivotally attached at one end to the shackle body and wherein the connection between the lever and the locking element and the actuator element permits pivotal movement and limited linear movement between the lever and the locking and actuator elements.
  • The pivot element may be a pin.
  • The actuator is preferably an hydraulic ram comprising a piston and cylinder and the actuator element is preferably the piston of the hydraulic ram.
  • The locking element may be a pin.
  • The shackle jaw may include a bore for receiving the locking element, which may be a locking pin. The bore may be a through bore. The bore may align with one or more bores in the shackle body.
  • Preferably, the connection between the lever and the locking element and the actuator element includes a pin extending through a slot. Preferably, the lever includes two slots of differing length.
  • It is preferred that the actuator is configured so that with the actuator element fully extended the locking element is in the release configuration. Advantageously, when the locking element is in the release position it is housed within a part of the shackle body.
  • The shackle may further include a a shackle loop. The shackle loop may be releasably attachable to the shackle body. The shackle loop may be attached to the shackle body by a pin.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • In the Drawings, which illustrate preferred embodiments of the quick release shackle invention:
  • FIG. 1 illustrates side, top and bottom plan and end views of the quick release shackle of the invention;
  • FIG. 2 is a schematic representation of a lever arm of the shackle illustrated in FIG. 1;
  • FIG. 3 is a front view of the shackle illustrated in FIG. 1 with a shackle link attached thereto, the shackle in a closed configuration; and
  • FIG. 4 is a front view of the shackle shown in FIG. 3 with the shackle in an open configuration.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • A shackle 1 comprises a body 2 formed from two spaced apart plates 2 a joined together by a through collar 2 b. The shackle body 2 is connected to a rope or chain through the collar 2 b.
  • A shackle jaw 3 is attached to the body 2 by a pin 4. The shackle jaw 3 may pivot on the pin 4.
  • A first pin 6 extends between and throughout the plates 2 a.
  • A second pin 7 is releasably mounted in aligned apertures in the plates 2 a. The shackle jaw 3 is provided with an aperture that aligns with the apertures in the plates 2 a to fasten the shackle in the configuration shown in FIG. 1.
  • A third pin 9 extends through the plates 2 a. The pin 9 is the piston of a hydraulic ram 8 which is attached to one side of the body 2.
  • Each of the first, second and third pins 6, 7, 9 have bifurcated end portions 6 a, 7 a, 9 a. Each bifurcated end portions are provided with holes 6 b, 7 b and 9 b respectively for receiving a pin.
  • A lever arm 10 sits between the bifurcated end portions 6 a, 7 a and 9 a and is connects together the pins 6, 7 and 9. The lever arm 10 is illustrated in detail in FIG. 2.
  • The lever arm includes three apertures, 10 a-10 c, each of a different shape. The first aperture 10 a is circular and is configured to receive a pin passing through the holes 6 b in the bifurcated end portions 6 a of the pin 6.
  • The second aperture 10 b is in the form of a slot 10 b and is configured to receive a pin passing though the holes 9 b in the bifurcated end portions 9 a of the pin 9.
  • The third aperture 10 c is again in the form of a slot. However, the slot 10 c is more elongate than the slot 10 b. The slot 10 c is configured to receive a pin passing through the holes 7 b in the bifurcated end portions 7 a of the pin 7.
  • The pin 9 of the hydraulic ram 8 reciprocates along a fixed path. The lever 10 is arranged to rotate about the pin extending through the holes 6 b. As the pin 9 is extended, moving the lever 10 away from the shackle body 2, the distance between the holes 9 b and the holes 6 b increases. The function of the slots 10 b is to accommodate this change in distance.
  • As the pin 9 a extends as described above, the pin 7, which is held captive on the lever 10, is pulled out of the side plates 2 a. The pin 7 travels in a straight line along its own longitudinal axis. Hence, the distance between the pin extending through the holes 6 b of pin 6 and the holes 7 b of pin 7 also increases as the pin 7 is moved further out of its seat in the plates 2 a. The slot 10 c is sufficiently elongate to accommodate this change in distance.
  • It will be appreciated from FIGS. 1 and 2 and the foregoing description that when the pin 9 is extended by sufficient a distance to allow the pin 7 to clear the inner face of the plate 2 a proximate the lever 10 the shackle jaw 3 will pivot about the pin 4, thereby releasing any load supported by the shackle 1.
  • The hydraulic ram 8 and pin 9 are configured such that with the pin 9 fully extended, the surface of free end of the pin 7 lies in substantially the same plane as the inner face of the plate 2 a that is proximate the lever 10. In this way, when the jaw 3 is released the pin 7 remains in a position where it may be drawn back through the shackle jaw 3 and the plate 2 a which mounts the ram 8.
  • Additional attachment members for attaching together the plates 2 a in the form of through collars or bushes may be provided and these may receive the pin 6 and the pin 9.
  • FIGS. 3 and 4 show the shackle 1 with a shackle loop 20 attached to the shackle body 2. Attachment of the shackle loop 20 to the shackle body 2 is by means of a pin 21 which passes through a hole 20 a in each of the ends 20′ of the loop, and the collar 2 b. The pin 21 has an end portion 22. The end portion 22 may be engaged to remove the pin 21 from the shackle loop 20 and shackle body 2 or insert the pin 21 into the aligned holes 20 a of the shackle loop and through the shackle body 2.
  • FIG. 4 illustrates the shackle in the open configuration with the pin 7 withdrawn from the plates 2 a, allowing the jaw 3 to rotate about the pin 4.
  • The drawings do not show a hydraulic pump. The hydraulic ram 8 requires a source of pressurised hydraulic fluid for its operation. The hydraulic pump may be a hand pump for example.
  • It will also be appreciated that a load supported by the shackle 1 in the shackle jaw 3 is in fact supported by the pins 4 and 7 only, not by the hydraulic ram 8 and its piston, the pin 9. This configuration allows a lighter weight actuator to be used. Also, removing the load from the actuator is likely to lead to lower rates of wear and tear. The pins 4 and 7 are much simpler and less costly to replace than a worn hydraulic cylinder.

Claims (17)

1. A shackle comprising a shackle body and a shackle jaw, wherein the shackle jaw is connected to the shackle body by a pivot element about which the shackle jaw and shackle body may pivot relative to one another, the shackle further comprising an actuator element and an actuator and a locking element, the locking element arranged to engage the shackle body and the shackle jaw in a locking configuration and to disengage from the shackle jaw in a release configuration, wherein the locking element is slidable along its longitudinal axis between the locking and release configurations and wherein the actuator element is arranged to slide along its longitudinal axes and wherein the pivot element, the actuator element and the locking element are connected to one another by a lever that is pivotally attached at one end to the shackle body and wherein the connection between the lever and the locking element and the actuator element permits pivotal movement and limited linear movement between the lever and the locking and actuator elements.
2. A shackle according to claim 1, wherein the pivot element is a pin.
3. A shackle according to claim 1 or 2, wherein the actuator is an hydraulic ram comprising a piston and cylinder.
4. A shackle according to claim 3, wherein the actuator element is the piston of the hydraulic ram.
5. A shackle according to claim 1, wherein the locking element is a pin.
6. A shackle according to claim 1, wherein the shackle jaw includes a bore for receiving the locking element.
7. A shackle according to claim 1, wherein the locking element is a locking pin.
8. A shackle according to claim 6, wherein the bore is a through bore.
9. A shackle according to claim 6, wherein the bore is aligned with at least one bore in the shackle body.
10. A shackle according to claim 1, wherein the connection between the lever and the locking element and the actuator element includes a pin extending through a slot.
11. A shackle according to claim 10, wherein the lever includes two slots of differing length.
12. A shackle according to claim 1, wherein the actuator is configured so that with the actuator element fully extended the locking element is in the release configuration.
13. A shackle according to claim 12, wherein when the locking element is in the release position it is housed within a part of the shackle body.
14. A shackle according to claim 1, further including a shackle loop.
15. A shackle according to claim 14, wherein the shackle loop is releasably attachable to the shackle body.
16. A shackle according to claim 14, wherein the shackle loop is attached to the shackle body by a pin.
17. (canceled)
US15/742,794 2015-07-06 2016-07-06 Quick release shackle Active 2036-09-17 US10752470B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1511923.3 2015-07-06
GB1511923.3A GB2541364A (en) 2015-07-06 2015-07-06 Quick release shackle
PCT/GB2016/052035 WO2017006116A1 (en) 2015-07-06 2016-07-06 Quick release shackle

Publications (3)

Publication Number Publication Date
US20180201483A1 US20180201483A1 (en) 2018-07-19
US20200039797A9 true US20200039797A9 (en) 2020-02-06
US10752470B2 US10752470B2 (en) 2020-08-25

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Application Number Title Priority Date Filing Date
US15/742,794 Active 2036-09-17 US10752470B2 (en) 2015-07-06 2016-07-06 Quick release shackle

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US (1) US10752470B2 (en)
EP (1) EP3320226B1 (en)
CA (1) CA2991668C (en)
DK (1) DK3320226T3 (en)
GB (1) GB2541364A (en)
WO (1) WO2017006116A1 (en)

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US11945694B1 (en) * 2020-07-23 2024-04-02 The Crosby Group LLC Master link test fixture assembly

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USD953845S1 (en) * 2019-02-11 2022-06-07 Kyle R. Schmidt Shackle
USD964152S1 (en) * 2019-11-04 2022-09-20 Zhejiang Runva Mechanical & Electrical Co., Ltd Bow shackle
USD993007S1 (en) * 2020-03-06 2023-07-25 Samuel Jackson Charles Brown Bow shackle assembly
RU200857U1 (en) * 2020-04-24 2020-11-13 Дмитрий Мубинович Узбяков Anchor cut

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GB1463078A (en) * 1973-04-19 1977-02-02 Nash Frazer Ltd Load-lifting or cargo-carrying hooks
US4389907A (en) * 1976-06-11 1983-06-28 Irving Epstein Releasable hook
US4174132A (en) * 1977-12-20 1979-11-13 American Hoist & Derrick Company Multiple position hook assembly
FR2643352B1 (en) * 1989-02-17 1991-06-07 Bennes Marrel TWO-PART GRIPPER HOOK FOR ARM HAULING APPARATUS, PARTICULARLY FOR LOADING / UNLOADING JIB
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US5178427A (en) * 1992-01-23 1993-01-12 Jorritsma Johannes N Self-releasing lift hook
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11945694B1 (en) * 2020-07-23 2024-04-02 The Crosby Group LLC Master link test fixture assembly

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Publication number Publication date
GB201511923D0 (en) 2015-08-19
GB2541364A (en) 2017-02-22
CA2991668C (en) 2023-10-10
WO2017006116A1 (en) 2017-01-12
EP3320226B1 (en) 2019-06-26
DK3320226T3 (en) 2019-10-07
US10752470B2 (en) 2020-08-25
CA2991668A1 (en) 2017-01-12
US20180201483A1 (en) 2018-07-19
EP3320226A1 (en) 2018-05-16

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