EP2160498B1 - Wear assembly for excavating equipment - Google Patents

Wear assembly for excavating equipment Download PDF

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Publication number
EP2160498B1
EP2160498B1 EP08747674.3A EP08747674A EP2160498B1 EP 2160498 B1 EP2160498 B1 EP 2160498B1 EP 08747674 A EP08747674 A EP 08747674A EP 2160498 B1 EP2160498 B1 EP 2160498B1
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EP
European Patent Office
Prior art keywords
dredge
tooth
dredge tooth
lock
socket
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.)
Active
Application number
EP08747674.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2160498A1 (en
EP2160498A4 (en
Inventor
Charles G. Ollinger, Iv
Chris D. Snyder
John S. Kreitzberg
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.)
Esco Corp
Original Assignee
Esco Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40002579&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2160498(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to SI200831434T priority Critical patent/SI2160498T1/sl
Priority to PL15151786T priority patent/PL2889434T3/pl
Priority to DK15151786.9T priority patent/DK2889434T3/en
Priority to PL14180148T priority patent/PL2910692T3/pl
Priority to PL08747674T priority patent/PL2160498T3/pl
Priority to EP14180150.6A priority patent/EP2865814B1/en
Priority to DK14180150.6T priority patent/DK2865814T3/en
Priority to EP14180148.0A priority patent/EP2910692B1/en
Priority to DK14180148.0T priority patent/DK2910692T3/da
Priority to PL14180150T priority patent/PL2865814T3/pl
Priority to EP15151786.9A priority patent/EP2889434B1/en
Application filed by Esco Corp filed Critical Esco Corp
Publication of EP2160498A1 publication Critical patent/EP2160498A1/en
Publication of EP2160498A4 publication Critical patent/EP2160498A4/en
Application granted granted Critical
Publication of EP2160498B1 publication Critical patent/EP2160498B1/en
Priority to HRP20150541TT priority patent/HRP20150541T1/hr
Priority to CY20151100456T priority patent/CY1116392T1/el
Priority to CY20191100158T priority patent/CY1121239T1/el
Priority to CY20191100355T priority patent/CY1122000T1/el
Priority to CY20191100991T priority patent/CY1122085T1/el
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E02F9/2841—Retaining means, e.g. pins resilient
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/961—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements with several digging elements or tools mounted on one machine
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2883—Wear elements for buckets or implements in general

Definitions

  • the present invention pertains to a dredge tooth and to a wear assembly for securing said dredge tooth to dredge cutterhead.
  • a wear assembly having a base portion and a wear member for excavating equipment.
  • a working section and a mounting section generally aligned along a longitudinal axis are provided.
  • the mounting section includes a socket for receiving a base fixed to the excavating equipment.
  • the working section is located forward of the socket.
  • a leading side is adapted to be a forward surface during advance of the wear member through the ground during a digging operation.
  • a trailing side is adapted to be a rearward surface during advance of the wear member through the ground.
  • dredge cutterheads are used for excavating earthen material that is underwater, such as a riverbed.
  • a dredge cutterhead 1 includes several arms 2 that extend forward from a base ring 3 to a hub 4, see Fig. 21 .
  • the arms are spaced about the base ring and formed with a broad spiral about the central axis of the cutterhead.
  • Each arm 2 is provided with a series of spaced apart teeth 5 to dig into the ground.
  • the teeth are composed of adapters or bases 6 that are fixed to the arms, and points 7 that are releasably attached to the bases by locks 8.
  • the cutterhead In use, the cutterhead is rotated about its central axis to excavate the earthen material. A suction pipe is provided near the ring to remove the dredged material. To excavate the desired swath of ground, the cutterhead is moved side-to-side as well as forward. On account of swells and other movement of the water, the cutterhead also tends to move up and down, and periodically impact the bottom surface. Further difficulties are caused by the operator's inability to see the ground that is being excavated underneath the water; i.e., unlike most other excavating operations, the dredge cutterhead cannot be effectively guided along a path to best suit the terrain to be excavated. In view of the heavy loads and severe environment, the point and base interconnection needs to be stable and secure.
  • dredge points are typically provided with elongate, slender bits for easier penetration of the ground.
  • the mounting section is wider than the bit and is not shaped for reduced drag.
  • the points are usually changed at this time before the bits are fully worn away.
  • a dredge tooth for dredge cutterhead is formed with side relief in the working and mounting sections to minimize the drag associated with the digging operation and, in turn, minimize the power needed to drive the equipment. Reduced power consumption, in turn, leads to a more efficient operation and a longer usable life for the dredge tooth.
  • the dredge tooth has a transverse configuration where the width of the leading side is larger than the width of the corresponding trailing side so that the sidewalls of the dredge tooth follow in the shadow of the leading side to decrease drag.
  • This use of a smaller trailing side is provided not only through the working end but also at least partially into the mounting end.
  • the drag experienced by a worn dredge tooth of the invention is less than that of a conventional dredge tooth. Less drag translates into less power consumption and a longer use of the dredge tooth before it needs to be replaced. Accordingly, the working ends of the dredge tooth can be further worn away before replacement is needed.
  • the dredge tooth has a digging profile that is defined by the transverse configuration of that portion of the dredge tooth that penetrates the ground in one digging pass and in the direction of motion through the ground.
  • side relief in the dredge tooth is provided in the digging profile to lessen the drag experienced during a digging operation.
  • side relief is provided in every digging profile expected through the life of the dredge tooth including those which encompass the mounting section.
  • the dredge tooth in another aspect of the invention, includes a socket for receiving a nose of a base fixed to the cutterhead.
  • the socket is formed with a generally trapezoidal transverse shape that generally corresponds to the transverse trapezoidal exterior profile of the dredge tooth. This general matching of the socket to the exterior of the mounting section eases manufacture, maximizes the size of the nose, and enhances the strength to weight ratio.
  • one or more of the top, bottom or side surfaces of a trapezoidal shaped nose and the corresponding walls of the socket are each bowed to fit together. These surfaces and walls have a gradual curvature to ease installation, enhance stability of the dredge tooth, and resist rotation of the dredge tooth about the longitudinal axis during use.
  • the socket and nose each includes rear stabilizing surfaces that extend substantially parallel to the longitudinal axis of the dredge tooth and substantially around the perimeter of the socket and nose to resist rearward loads applied in all directions.
  • the socket and nose are formed with complementary front bearing faces that are substantially hemispherical to lessen stress in the components and to better control the rattle that occurs between the dredge tooth and the base.
  • the socket and nose are formed with front curved bearing faces at their front ends, and with generally trapezoidal transverse shapes rearward of the front ends to improve stability, ease manufacture, maximize the size of the nose, reduce drag, stress and wear, and enhance the strength to weight ratio.
  • the wear assembly includes a base, a dredge tooth that mounts to the base, and an axially oriented lock that in a compressive state holds the dredge tooth to the base in a manner that is secure, easy to use, readily manufactured, and can tighten the fit of the dredge tooth on the base.
  • the wear assembly includes an adjustable axial lock.
  • the dredge tooth includes an opening into which the lock is received, and a hole that is formed in a rear wall of the opening to accommodate passage of a lock to stabilize the lock and facilitate easy tightening of the lock.
  • the base interacts with the lock solely through the use of a projecting stop.
  • a projecting stop there is no need for a whole, recess or passage in the nose such as is typically provided to receive the lock.
  • the nose strength is thus enhanced.
  • the locking arrangement for securing the dredge tooth to the base can be adjusted to consistently apply a predetermined tightening force to the dredge tooth irrespective of the amount of wear that may exist in the base and/or dredge tooth.
  • the dredge tooth includes a marker that can be used to identify when the lock has been adequately tightened.
  • the dredge tooth is installed and secured to the base through an easy to use, novel process involving an axial lock.
  • the dredge tooth fits over a nose of a base fixed to the cutterhead.
  • the base includes a stop that projects outward from the nose.
  • An axial lock is received into an opening in the dredge tooth and extends between the stop and a bearing surface on the dredge tooth to releasably hold the dredge tooth to the nose.
  • the dredge tooth is first slid over a base fixed to the cutterhead.
  • An axially oriented lock is positioned with one bearing face against a stop on the base and another bearing face against a bearing wall on the dredge tooth such that the lock is in axial compression. The lock is adjusted to move the dredge tooth tightly onto the base.
  • a dredge tooth for cutterhead comprising a working section and a mounting section generally aligned along a longitudinal axis, the mounting section including a socket for receiving a base fixed to the cutterhead, and the working section being forward of the socket and including an elongate slender bit, a leading side adapted to be a forward surface during rotation of the cutterhead to advance the dredge tooth through the ground during a digging operation, and a trailing side adapted to be a rearward surface during advance of the dredge tooth through the ground, the leading and trailing sides extending axially across the working and mounting sections, and the leading side having a greater width than the trailing side in transverse cross sections perpendicular to the longitudinal axis along at least part of the working section and the mounting section to minimize the power needed to drive the cutterhead when mounting section engages the ground.
  • This dredge tooth can include an opening for receiving a lock to secure the dredge tooth to the base.
  • the mounting section can have a generally trapezoidal transverse configuration perpendicular to the longitudinal axis.
  • the working section can have a generally trapezoidal transverse configuration perpendicular to the longitudinal axis.
  • At least one wall of the socket is bowed inwardly to define a projection that fits into a trough formed on the base.
  • the socket has a generally trapezoidal transverse configuration.
  • each wall of the socket defining the trapezoidal shape can have a generally curved, convex shape across substantially the entire width of the wall.
  • the sidewalls generally can converge toward the trailing side in the digging profiles across substantially the entire length of the mounting section.
  • said dredge tooth comprising the socket including a front end defining a front bearing face that is concave and curved about two axes which are each perpendicular to the longitudinal axis, and a main portion rearward of the front end having a generally trapezoidal configuration transverse to the longitudinal axis.
  • said dredge tooth comprising the main portion including stabilizing surfaces axially extending substantially parallel to the longitudinal axis and transversely extending substantially around a perimeter of the socket.
  • said dredge tooth comprising an opening having a front wall and a rear wall, and the rear wall including a hole through which the lock extends from the opening at an inclination to the longitudinal axis for easy access by an operator for tightening of the lock.
  • a marker is provided adjacent the opening to provide a visual indicating to the operator when the lock has been sufficiently tightened.
  • the socket can include rear stabilizing surfaces axially extending substantially parallel to the longitudinal axis and positioned rearward of the hole.
  • a wear assembly for dredge cutterhead comprising: a base fixed to the dredge cutterhead; a dredge tooth as described above,and a lock to releasably secure the dredge tooth to the base.
  • the wear assembly having a lock which includes a linear, threaded shaft having a bearing end and a tool engaging end, a nut threaded onto the shaft, and a spring, the spring including a plurality of alternating annular elastomeric disks and annular spacers fit about the threaded shaft between the bearing end and the nut.
  • the present invention pertains to a wear assembly 10 for cutterhead, and is particularly well suited for dredging operations
  • the invention refers to a dredge tooth adapted for attachment to a dredge cutterhead.
  • Wear assembly 10 includes a base 12 secured to a dredge cutterhead, a dredge tooth 14, and a lock 16 to releasably hold the dredge tooth to base 12, see Figs. 1-10 .
  • Base 12 includes a forwardly projecting nose 18 onto which dredge tooth 14 is mounted, and a mounting end - not shown - that is fixed to an arm of a dredge cutterhead, see Figs. 1 , 9 and 11-14 .
  • the base may be cast as part of the arm, welded to the arm, or attached by mechanical means.
  • the base may be formed and mounted to the cutterhead such as disclosed in U.S. Patent No. 4,470,210 or U.S. Patent No. 6,729,052 / EP 1 469 713 A2 .
  • dredge tooth 14 is a point provided with a working section 21 in the form of an elongate slender bit and a mounting section 23 that defines a socket 20 to receive nose 18, see Figs. 1-10 .
  • Point 14 is rotated by the cutterhead such that it engages the ground in generally the same way with each digging pass.
  • point 14 includes a leading side 25 and a trailing side 27.
  • Leading side 25 is the side that first engages and leads the penetration of the ground with each rotation of the cutterhead.
  • trailing side 27 has a smaller width than leading side 25 - i.e., along a plane perpendicular to the longitudinal axis 28 of point 14 - through bit 21, see Fig. 5 , and at least partially through mounting section 23, see Fig. 4 .
  • trailing side 27 has a smaller width than leading side 25 throughout the length of point 14, see Figs. 4, 5 and 7 .
  • Bit 21 of point 14 preferably has a generally trapezoidal transverse configuration with a leading side 25 that is wider than trailing side 27, see Fig. 5 .
  • the term "transverse configuration" is used to refer to the two-dimensional configuration along a plane perpendicular to the longitudinal axis 28 of dredge tooth 14.
  • sidewalls 29, 31 follow in the shadow of leading side 25 during digging and thereby create little drag on the cutting operation.
  • sidewalls 29, 31 converge toward trailing side 27 at an angle ⁇ of about 16 degrees, see Fig. 5 ; however, other angular configurations are possible.
  • the leading side 25, trailing side 27 and sidewalls 29, 31 can be planar, curved or irregular. Moreover, shapes other than trapezoidal can be used that provide side relief.
  • dredge point 14 penetrates the ground to a certain depth with each digging pass - i.e., with each rotation of the cutterhead.
  • the bit alone penetrates the ground.
  • the ground level in one digging cycle extends generally along line 3-3, see Fig. 2 , at the center point of a digging pass. Since only the bit penetrates the ground and the bit is relatively thin, the drag placed on the digging operation is within manageable limits. Nevertheless, with many teeth being constantly driven through the ground at a rapid rate, power requirements are always high and reducing the drag even in the bit is beneficial to the operation, especially when digging through rock.
  • sidewalls 29, 31 not only converge toward trailing side 27, but are configured so that the sidewalls lie within the shadow of the leading side 25 in the digging profile.
  • the "digging profile” is used to mean the cross-sectional configuration of the portion of point 14 that penetrates the ground along a plane that is (i) parallel to the direction of travel 34 at the center point of a digging pass through the ground and (ii) laterally perpendicular to the longitudinal axis.
  • the digging profile is a better indication of the drag to be imposed on the point during use than a true transverse cross section.
  • the provision of side relief in the digging profile is dependent on the angle at which the sidewalls converge toward the trailing side and the axial slope or expansion of the point surfaces in a rearward direction.
  • the intention is to provide a width that generally narrows from the leading side to the trailing side when considered from the perspective of the digging profile.
  • Side relief in the digging profile preferably extends across the expected cutterhead digging angles, but benefit can still be obtained if such side relief exists in at least one digging angle.
  • the cross-sectional configuration illustrated in Figure 3 represents one digging profile 35 for a portion of point 14 being driven through the ground. As can be seen, bit 21 is still provided with side relief even in the digging profile as sidewalls 29, 31 converge toward trailing side 27 for reduced drag.
  • the mounting section 23 continues to include side relief at least at the front end 40 of the mounting section, see Fig. 4 , and preferably throughout the mounting section, see Figs. 4 and 7 .
  • mounting section 23 is larger than bit 21 to accommodate the receipt of nose 18 into socket 20 and to provide ample strength for the interconnection between point 14 and base 12.
  • Sidewalls 29, 31 are inclined so as to converge toward trailing side 27.
  • the inclination of sidewalls 29, 31 along line 4-4 is, in this one example, at an angle ⁇ of about 26 degrees, see Fig. 4 , but other inclinations can also be used.
  • the desired side relief in the digging profile depends on the relation between the transverse inclination of the sidewalls and the axial expansion of the point.
  • bit 21a has a trapezoidal transverse configuration with a leading side 25a that is wider than trailing side 27a.
  • bit 21a does not provide side relief in the digging profile.
  • the digging profile 35a i.e. along line 3A-3A, in Figure 2A does not have sidewalls 29a, 31a that converge toward trailing side 27a, see Figs. 2A and 3A .
  • sidewalls 29a, 31a in digging profile 35a expand outward at an increasingly greater slope as the sidewalls extend toward the trailing side. This outward flaring of sidewalls 29a, 31 a will generate an increased drag on the cutterhead.
  • the effective use of side relief in point 14 for the digging profile is a better reduction of drag than simply using sidewalls that convey in a transverse configuration.
  • bit 21 has worn down to an extent where the portion of mounting section 23 along line 6-6, see Figs. 2 and 6 , is driven through the ground.
  • Even the mounting section 23 provides side relief for reduced drag; i.e., sidewalls 29, 31 converge toward trailing side even in digging profile 45.
  • the presence of side relief in digging profile 45 imposes less drag and, hence, requires less power to be driven through the ground.
  • the reduced drag in turn, enables the cutterhead to continue to operate with points worn to the point where the mounting section penetrates the ground.
  • mounting section 23a does not have a trapezoidal transverse configuration with sidewalls 29a, 31a that converge toward trailing side 27a.
  • the tapering of sidewalls 29, 31 continues from front end 37 to rear end 47 of point 14.
  • sidewalls 29, 31 converge toward trailing side 27 even at the rear of mounting section 23.
  • side relief is provided even in a digging profile 55 along line 8-8, see Figs. 2 and 8 , i.e., sidewalls 29, 31 converge toward trailing side 27 even in this rearward digging profile 55.
  • front end 58 of nose 18 includes a forward-facing bearing face 60 that is convex and curved about two perpendicular axes, see Figs. 1 , 9 and 11-14 .
  • the front end 62 of socket 20 is formed with a complementary concave and curved bearing face 64 to set against bearing face 60, see Figs. 1 , 7 , 9 and 11 .
  • front bearing faces 60, 64 each conforms to a spherical segment to lessen stress in the components due to the application of non-axial loads such as disclosed in US Patent No. 6,729,052 .
  • front ends 58, 62 are each generally hemispherical to reduce the rattle between point 14 and base 12 and more effectively resist loads from all directions.
  • Front bearing surface 64 of socket 20 is preferably slightly broader than hemispherical at its ends and center to accommodate reliably mounting of points 14 on different bases, i.e., without binding or bottoming out, but which under common loads or following wear operate as a true hemispherical socket surface on the hemispherical ball surface of base 12.
  • a conventional tooth 10a see Fig. 2A
  • the point shifts 14a around on the nose as the tooth is forced through the ground.
  • the front ends of the socket and nose are angular with flat bearing surfaces and hard corners.
  • point 14a shifts around on the nose such that the front of the socket 20a rattles around and against the front end of the nose, and the rear end of the socket shifts around and rattles against the rear end of the nose.
  • This shifting and rattling causes the point and base to wear.
  • the use of generally hemispherical front bearing faces 60, 64 substantially reduces the rattle at the front end of the socket 20 and nose 18, see Figs. 1 and 9 . Rather, the use of smooth, continuous front bearing faces enables the point to roll about the nose to reduce wear.
  • a small band 65, substantially parallel to the longitudinal axis 28, preferably extends directly rearward of the generally hemispherical bearing surfaces to provide additional capacity for the nose to wear and still maintain the desired support.
  • substantially parallel is intended to include parallel surfaces as well as those that axially diverge rearwardly from axis 28 at a small angle, e.g., of about 1-7 degrees, for manufacturing or other purposes.
  • the small band 65 Is preferably axially inclined no more than 5 degrees to axis 28, and most preferably is axially inclined about 2-3 degrees.
  • Nose 18 includes a body 66 rearward of front end 58, see Figs. 11-14 ).
  • Body 66 is defined by an upper surface 68, a lower surface 69 and side surfaces 70, 71.
  • body surfaces 68-71 diverge rearwardly so that nose 18 expands outward from front end 58 to provide a more robust nose to withstand the rigors of digging. Nevertheless, it is possible for only the upper and lower surfaces 68, 69 to diverge from each other and for the side surfaces 70, 71 to axially extend substantially parallel to each other.
  • Socket 20 has a main portion 76 rearward of front end 62 to receive body 66.
  • Main portion 76 includes an upper wall 78, lower wall 79 and sidewalls 80, 81 that conform to body surfaces 68-71.
  • body 66 and main portion 76 each have a trapezoidal transverse configuration.
  • the use of a trapezoidal shape predominantly along the length of nose 18 and socket 20 provides four corners 67, 77, which act as spaced ridges to resist turning of dredge tooth 14 about axis 28.
  • At least one of the body surfaces 68-71 and socket walls 78-81 - and preferably all of them - have mutually bowed configurations, see Figs. 7 , 11 and 13 ; that is, body surfaces 68-71 are preferably concave and curved across substantially their entire widths to define a trough 84 on each of the four sides of body 66.
  • socket walls 78-81 are preferably convex and curved across substantially their entire widths to define projections 86 received into troughs 84.
  • the preferred bowing of nose surfaces 68-71 and socket walls 78-81 across substantially their entire widths accentuate corners 67, 77 to provide increased resistance to the rotation of point 14 about base 12 during operation.
  • the troughs and projections will also reduce rotational rattle of the point on the base. While the bowed surfaces 68-71 and walls 78-81 are preferred, other trough and projection configurations such as disclosed in U.S. Patent Application No. 11/706,592 could also be used. Other rotation resisting constructions could also be used.
  • troughs 84 and projections 86 and particularly those that are gradually curved and extending substantially across the entire widths of the surfaces 68-71 and walls 78-81 eases the assembly of point 14 onto nose 18; i.e., the troughs 84 and projections 86 cooperatively direct point 14 into the proper assembled position on nose 18 during assembly.
  • the engagement of projections 86 being received into the troughs 84 will tend to rotate the point into proper alignment as the point is fed rearward onto nose 18.
  • This cooperative effect of troughs 84 and projections 86 greatly eases and speeds installation and the setting of corners 67 into corners 77.
  • Nose surfaces 68-71 with troughs 84 are each preferably inclined axially to expand outward as they extend rearward to provide strength to nose 18 until reaching a rear stabilizing surface 85 of nose 18.
  • socket walls 78-81 with projections 86 also each expand to conform to surfaces 68-71.
  • Socket walls 78-81 also define rear stabilizing surfaces 95 to bear against stabilizing surfaces 85.
  • Rear stabilizing surfaces 85, 95 are substantially parallel to longitudinal axis 28. In one preferred embodiment, each stabilizing surface 85, 95 diverges axially rearward at an angle to axis 28 of about 7 degrees.
  • the rear stabilizing surfaces 85, 95 also preferably encircle - or at least substantially encircle - nose 18 and socket 20 to better resist non-axial loads.
  • stabilizing surfaces 85, 95 are preferably formed with short axial extensions, they could have longer or different constructions. Also, in certain circumstances, e.g., in light duty operations, benefits can be achieved without stabilizing surfaces 85, 95.
  • Front bearing faces 60, 64 and rear stabilizing surfaces 85, 95 are provided to stabilize the point on the nose and to lessen stress in the components.
  • the generally hemispherical bearing faces 60, 64 at the front ends 58, 62 of the nose 18 and socket 20 are able to stably resist axial and non-axial rearward forces in direct opposition to the loads irrespective of their applied directions.
  • This use of curved, continuous front bearing surfaces reduces rattling of the point on the nose and reduces the stress concentrations that otherwise exist when corners are present.
  • Rear stabilizing surfaces 85, 95 complement the front bearing faces 60, 64 by reducing the rattle at the rear of the point and providing stable resistance to the rear portions of the point, as described in U.S. Patent No.
  • Main portion 76 of socket 20 preferably has a generally trapezoidal transverse configuration to receive a matingly shaped nose 18, see Figs. 7 and 11 .
  • the generally trapezoidal transverse configuration of socket 20 generally follows the generally trapezoidal transverse configuration of the exterior 97 of point 14. This cooperative shaping of the socket 20 and exterior 97 maximizes the size of the nose 18 that can be accommodated within point 14, eases the manufacturing of point 14 in a casting process, and enhances the strength to weight ratio.
  • Opening 101 preferably has an axially elongated shape and includes a front wall 103, a rear wall 105, and sidewalls 107, 109.
  • a rim 111 is built up around opening 101 for protection of the lock and for additional strength.
  • Rim 111 is also enlarged along rear wall 105 to extend farther outward of exterior surface 97 and define a hole 113 for passage of lock 16. The hole stabilizes the position of lock 16 and permits easy access to it by the operator.
  • Nose 18 includes a stop 115 that projects outward from upper side 68 of nose 18 to engage lock 16.
  • Stop 115 preferably has a rear face 119 with a concave, curved recess 121 into which a front end 123 of lock 16 is received and retained during use, but other arrangements could be used to cooperate with the lock.
  • opening 101 is long enough and trailing wall 27 sufficiently inclined to provide clearance for stop 115 when dredge tooth 14 is installed onto nose 18. Nevertheless, a relief or other forms of clearance could be provided in socket 20 if needed for the passage of stop 115.
  • the projection of stop 115 is preferably limited by the provision of a depression 118 to accommodate a portion of lock 16.
  • Lock 16 is a linear lock oriented generally axially to hold dredge tooth 14 onto base 12, and to tighten the fit of dredge tooth 14 onto nose 18.
  • the use of a linear lock oriented axially increases the capacity of the lock to tighten the fit of the dredge tooth on the nose; i.e., it provides for a greater length of take up.
  • lock 16 includes a threaded shaft 130 having a front end 123 and a rear end with head 134, a nut 136 threaded to shaft 130, and a spring 138, see Figs. 1 , 9 and 15-20 .
  • Spring 138 is preferably formed of a series of elastomeric disks 140 composed of foam, rubber or other resilient material, separated by spacers 142 which are preferably in the form of washers. Multiple disks 140 are used to provide sufficient force, resiliency and take up. The washers isolate the elastomeric disks so that they operate as a series of individual spring members. Washers 142 are preferably composed of plastic but could be made of other materials. Moreover, the spring of the preferred construction is economical to make and assemble on shaft 130. Nevertheless, other kinds of springs could be used. A thrust washer 142a or other means is preferably provided at the end of the spring to provide ample support.
  • Shaft 130 extends centrally through spring 138 to engage nut 136. Front end 123 of shaft 130 fits into recess 121 so that the shaft 130 is set against stop 115 for support. Rear end 134 of lock 16 extends through hole 113 in dredge tooth 14 to enable a user to access the lock outside of opening 101.
  • the shaft is preferably set at an angle to axis 28 so that head 134 is more easily accessed.
  • Spring 138 sets between rear wall 105 and nut 136 so that it can apply a biasing force to the dredge tooth when the lock is tightened.
  • Hole 113 is preferably larger than head 134 to permit its passage during installation of lock 16 into assembly 10. Hole 113 could also be formed as an open slot to accommodate insertion of shaft 130 simply from above. Other tool engaging structures could be used in lieu of the illustrated head 134.
  • dredge tooth 14 is slid over nose 18 so that nose 18 is fit into socket 20, see Figs. 1 and 9 .
  • the lock can be temporarily held in hole 113 for shipping, storage and/or installation by a releasable retainer - e.g., a simple twist tie - fit around shaft 130 outside of opening 101 or it can be installed after the dredge tooth is fit onto the nose.
  • shaft 130 is inserted through hole 113 and its front end 123 set in recess 121 of stop 115.
  • Lock 16 is positioned to lie along the exterior of nose 18 so that no holes, slots or the like need to be formed in the nose to contain the lock for resisting the loads.
  • Head 134 is engaged and turned by a tool to tighten the lock to a compressive state to hold the dredge tooth; i.e., shaft 130 is turned relative to nut 136 so that front end 123 presses against stop 115. This movement, in turn, draws nut 136 rearward against spring 138, which is compressed between nut 136 and rear wall 105. This tightening of lock 16 pulls dredge tooth 14 tightly onto nose 18 - i.e., with front bearing faces 60, 64 engaged - for a snug fit and less wear during use. Continued turning of shaft 130 further compresses spring 138. The compressed spring 138 then urges dredge tooth 14 rearward as the nose and socket begin to wear.
  • Lock 16 is lightweight, hammerless, easy to manufacture, does not consume much space, and does not require any openings in the nose.
  • lock 16 also includes an indicator 146 fit onto shaft 130 in association with nut 136, see Figs. 15-20 .
  • Indicator 146 is preferably a plate formed of steel or other rigid material that has side edges 148, 149 that fit closely to sidewalls 107, 109 of opening 101, but not tightly into opening 101.
  • Indicator 146 includes an opening that fully or partially receives nut 136 to prevent rotation of the nut when shaft 130 is turned. The close receipt of side edges 148, 149 to sidewalls 107, 109 prevents indicator 146 from turning.
  • the indicator could have a threaded bore to function as the nut; if the indicator were omitted, other means would be required to hold nut 136 from turning.
  • Indicator 146 could also be discrete from nut 136.
  • Indicator 146 provides a visual indication of when shaft 130 has been suitably tightened to apply the desired pressure to the dredge tooth without placing undue stress on shaft 130 and/or spring 138.
  • indicator 146 cooperates with a marker 152 formed along opening 101, e.g., along rim 111 and/or sidewalls 107, 109.
  • Marker 152 is preferably on rim 111 along one or both sidewalls 107, 109, but could have other constructions.
  • Marker 146 is preferably a ridge or some structure that is more than mere indicia so that it can be used to retighten lock 16 when wear begins to develop as well as at the time of initial tightening.
  • indicator 146 moves rearward - from the position in Fig. 16 - with nut 136 within opening 101.
  • indicator 146 aligns with marker 152, see Fig. 15 , the operator knows that tightening can be stopped.
  • lock 16 applies a predetermined pressure on dredge tooth 14 irrespective of the wear on the nose and/or in the socket 20. Hence, both under-tightening and over-tightening of the lock can be easily avoided.
  • indicator 146 can be omitted and shaft 130 tightened to a predetermined amount of torque.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Forging (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Clamps And Clips (AREA)
  • Braking Arrangements (AREA)
  • Mechanical Operated Clutches (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Shovels (AREA)
EP08747674.3A 2007-05-10 2008-05-06 Wear assembly for excavating equipment Active EP2160498B1 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
EP14180148.0A EP2910692B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment
EP15151786.9A EP2889434B1 (en) 2007-05-10 2008-05-06 Wear member and wear assembly for excavating equipment
PL14180148T PL2910692T3 (pl) 2007-05-10 2008-05-06 Zespół podlegający zużyciu do sprzętu wydobywczego
PL08747674T PL2160498T3 (pl) 2007-05-10 2008-05-06 Zespół podlegający zużyciu dla sprzętu wydobywczego
EP14180150.6A EP2865814B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment
DK14180150.6T DK2865814T3 (en) 2007-05-10 2008-05-06 Excavator wear device
PL15151786T PL2889434T3 (pl) 2007-05-10 2008-05-06 Człon podlegający zużyciu i zespół podlegający zużyciu do sprzętu wydobywczego
DK14180148.0T DK2910692T3 (da) 2007-05-10 2008-05-06 Slitageanordning til at jordbehandlingsudstyr
PL14180150T PL2865814T3 (pl) 2007-05-10 2008-05-06 Zespół podlegający zużyciu dla sprzętu wydobywczego
DK15151786.9T DK2889434T3 (en) 2007-05-10 2008-05-06 Wear element and wear device for soil treatment equipment
SI200831434T SI2160498T1 (sl) 2007-05-10 2008-05-06 Obrabni sestav za opremo za izkopavanje
HRP20150541TT HRP20150541T1 (hr) 2007-05-10 2015-05-20 Sklop za kopanje na iskopnoj mehanizaciji
CY20151100456T CY1116392T1 (el) 2007-05-10 2015-05-22 Φθειρομενη διαταξη για εξοπλισμο εκσκαφης
CY20191100158T CY1121239T1 (el) 2007-05-10 2019-02-05 Συγκροτημα φθορας για εξοπλισμο εκσκαφης
CY20191100355T CY1122000T1 (el) 2007-05-10 2019-03-27 Στοιχειο φθορας και συγκροτημα φθορας για εξοπλισμο εκσκαφης
CY20191100991T CY1122085T1 (el) 2007-05-10 2019-09-20 Διαταξη τριβειου για εξοπλισμο εκσκαφων

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US92878007P 2007-05-10 2007-05-10
US92882107P 2007-05-10 2007-05-10
US93048307P 2007-05-15 2007-05-15
PCT/US2008/062724 WO2008140993A1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment

Related Child Applications (6)

Application Number Title Priority Date Filing Date
EP14180150.6A Division EP2865814B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment
EP14180150.6A Division-Into EP2865814B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment
EP15151786.9A Division EP2889434B1 (en) 2007-05-10 2008-05-06 Wear member and wear assembly for excavating equipment
EP15151786.9A Division-Into EP2889434B1 (en) 2007-05-10 2008-05-06 Wear member and wear assembly for excavating equipment
EP14180148.0A Division EP2910692B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment
EP14180148.0A Division-Into EP2910692B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment

Publications (3)

Publication Number Publication Date
EP2160498A1 EP2160498A1 (en) 2010-03-10
EP2160498A4 EP2160498A4 (en) 2011-12-28
EP2160498B1 true EP2160498B1 (en) 2015-02-25

Family

ID=40002579

Family Applications (4)

Application Number Title Priority Date Filing Date
EP14180150.6A Active EP2865814B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment
EP08747674.3A Active EP2160498B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment
EP15151786.9A Active EP2889434B1 (en) 2007-05-10 2008-05-06 Wear member and wear assembly for excavating equipment
EP14180148.0A Active EP2910692B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14180150.6A Active EP2865814B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP15151786.9A Active EP2889434B1 (en) 2007-05-10 2008-05-06 Wear member and wear assembly for excavating equipment
EP14180148.0A Active EP2910692B1 (en) 2007-05-10 2008-05-06 Wear assembly for excavating equipment

Country Status (23)

Country Link
EP (4) EP2865814B1 (ru)
JP (4) JP5620263B2 (ru)
KR (5) KR101651385B1 (ru)
CN (3) CN101688385B (ru)
AP (1) AP2751A (ru)
AU (1) AU2008251647C1 (ru)
BR (4) BR122015006401B1 (ru)
CA (2) CA2686620C (ru)
CO (1) CO6241176A2 (ru)
CY (4) CY1116392T1 (ru)
DK (4) DK2889434T3 (ru)
EA (1) EA015217B1 (ru)
ES (4) ES2711820T3 (ru)
HK (1) HK1138893A1 (ru)
HR (4) HRP20150541T1 (ru)
LT (3) LT2889434T (ru)
MX (1) MX2009012181A (ru)
MY (3) MY171629A (ru)
NZ (2) NZ581007A (ru)
PL (4) PL2865814T3 (ru)
PT (4) PT2865814T (ru)
SI (4) SI2865814T1 (ru)
WO (1) WO2008140993A1 (ru)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8806785B2 (en) * 2009-05-29 2014-08-19 Metalogenia, S.L. Wearing element with enhanced wear resistance
CN102686810B (zh) 2009-10-30 2015-07-08 爱斯科公司 用于挖掘设备的磨耗组件
NL2004771C2 (en) * 2010-05-26 2011-11-29 Ihc Holland Ie Bv Tooth system.
JP5504205B2 (ja) * 2011-05-09 2014-05-28 株式会社小松製作所 建設機械のバケットツース組立体、およびこれを備えたバケット
JP5210415B2 (ja) * 2011-05-09 2013-06-12 株式会社小松製作所 建設機械のバケットツース
JOP20200019A1 (ar) * 2011-07-14 2017-06-16 Esco Group Llc مجموعة بطانه
US8943717B2 (en) 2011-10-08 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9057177B2 (en) 2011-10-08 2015-06-16 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943716B2 (en) 2011-10-10 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
CN102535545B (zh) * 2012-01-12 2014-06-25 广西大学 一种可控机构式高承载能力重型装载机
CN102535547B (zh) * 2012-01-12 2014-06-25 广西大学 一种高承载能力可控机构式装载机
CN102535537B (zh) * 2012-01-12 2014-05-07 广西大学 一维转动动臂二维转动铲斗空间可控机构式装载机
US9963853B2 (en) 2012-06-01 2018-05-08 Esco Corporation Lip for excavating bucket
US10589278B2 (en) * 2013-03-18 2020-03-17 Esco Group Llc Wear cap for an earth working roll
US10508418B2 (en) 2016-05-13 2019-12-17 Hensley Industries, Inc. Stabilizing features in a wear member assembly
US10407880B2 (en) * 2016-06-24 2019-09-10 Caterpillar Inc. Wear member retention system for an implement
CN108505580B (zh) * 2018-03-27 2023-12-26 浙江澳德耐磨零部件有限公司 一种挖掘机和疏浚机械用齿头结构
US11634892B2 (en) 2019-11-27 2023-04-25 Hensley Industries, Inc. Excavating tooth assembly with releasable lock pin assembly
US20240018753A1 (en) * 2020-12-11 2024-01-18 Avtru Pty Ltd Coupling assembly
PE20240792A1 (es) * 2021-06-04 2024-04-17 Talon Eng Sdn Bhd Fijacion de un protector de reborde

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1999317A2 (en) * 2006-03-30 2008-12-10 Esco Corporation Wear assembly

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US673589A (en) * 1901-01-05 1901-05-07 Anton Veit Scuttle-door.
US857863A (en) * 1906-09-05 1907-06-25 Charles H Booth Tool-head-attaching key or wedge.
US3225467A (en) * 1963-07-15 1965-12-28 Petersen Gerald A Tooth for digging equipment used in compacted soil
US3371437A (en) * 1965-04-28 1968-03-05 Mid Continent Steel Casting Co Locking device for digger tooth
JPS5332081Y2 (ru) * 1973-06-21 1978-08-09
US6735890B2 (en) * 2001-07-06 2004-05-18 Esco Corporation Wear assembly
JPS568662U (ru) * 1979-06-27 1981-01-24
US4470210A (en) 1983-05-25 1984-09-11 Esco Corporation Mounting for excavating implement and method
SE450504B (sv) * 1983-07-26 1987-06-29 Bofors Wear Parts Ab Slitdelssystem for verktyg till jordbearbetningsmaskiner
SE8405819L (sv) * 1984-11-20 1986-05-21 Bofors Wear Parts Ab Slitdelssystem
JPS61261598A (ja) * 1985-05-14 1986-11-19 リチヤ−ド　ロイド　ロ−ンダ− 掘削歯用取付組立体
US4727663A (en) * 1985-10-24 1988-03-01 Esco Corporation Excavating tooth having a lock including a basket spring
US4949481A (en) * 1989-08-04 1990-08-21 Deere & Company Digging tooth assembly
JPH04306329A (ja) * 1991-03-31 1992-10-29 Hitachi Constr Mach Co Ltd バケット用爪具
US5526593A (en) * 1994-07-15 1996-06-18 Mobile Pulley & Machine Works, Inc. Replaceable adapter for excavating cutterhead
US5653048A (en) * 1995-11-06 1997-08-05 Esco Corporation Wear assembly for a digging edge of an excavator
US5709043A (en) 1995-12-11 1998-01-20 Esco Corporation Excavating tooth
US6047487A (en) * 1998-07-17 2000-04-11 H&L Tooth Co. Multipiece excavating tooth assembly
ES2158805B1 (es) * 1999-10-01 2002-04-01 Metalogenia Sa Perfeccionamientos en los acoplamientos para dientes de maquinas para movimiento de tierras.
AUPR576701A0 (en) * 2001-06-18 2001-07-12 Keech Castings Australia Pty Limited Locking assembly and method
ES2336897T3 (es) * 2001-07-06 2010-04-19 Esco Corporation Acoplamiento para pieza desgastable de excavadora.
US6729052B2 (en) 2001-11-09 2004-05-04 Esco Corporation Assembly for securing an excavating tooth
AUPS134802A0 (en) * 2002-03-26 2002-05-09 Shark Abrasion Systems Pty Ltd Attachment system
SE522438C2 (sv) * 2002-12-23 2004-02-10 Combi Wear Parts Ab Slitdelssystem för lösbar montering av slitdelar till en markberedningsmaskins verktyg
ITUD20040021A1 (it) * 2004-02-10 2004-05-10 Italricambi Srl Dente per benne di escavatori o simili

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1999317A2 (en) * 2006-03-30 2008-12-10 Esco Corporation Wear assembly

Also Published As

Publication number Publication date
CO6241176A2 (es) 2011-01-20
PT2160498E (pt) 2015-06-08
EP2910692A2 (en) 2015-08-26
ES2537085T3 (es) 2015-06-02
NZ597854A (en) 2013-05-31
BR122015006401B1 (pt) 2018-10-16
PT2889434T (pt) 2019-05-03
JP5620263B2 (ja) 2014-11-05
EP2160498A1 (en) 2010-03-10
HK1138893A1 (en) 2010-09-03
ES2748327T3 (es) 2020-03-16
EP2889434B1 (en) 2019-03-06
CA2686620C (en) 2016-02-16
CN101688385A (zh) 2010-03-31
KR101528984B1 (ko) 2015-06-15
HRP20191616T1 (hr) 2019-12-13
WO2008140993A1 (en) 2008-11-20
LT2889434T (lt) 2019-04-25
NZ581007A (en) 2012-02-24
AP2009005034A0 (en) 2009-12-31
CA2880205C (en) 2016-09-27
BR122015006394A2 (pt) 2018-04-03
MY154678A (en) 2015-07-15
JP6378803B2 (ja) 2018-08-22
JP2017166320A (ja) 2017-09-21
HRP20190616T1 (hr) 2019-05-31
CY1122000T1 (el) 2020-10-14
KR20100023857A (ko) 2010-03-04
KR101589007B1 (ko) 2016-01-26
JP2015135052A (ja) 2015-07-27
PT2910692T (pt) 2019-10-18
JP2010526953A (ja) 2010-08-05
KR20150020673A (ko) 2015-02-26
BR122015006403A2 (pt) 2018-04-03
PL2865814T3 (pl) 2019-05-31
KR20130079578A (ko) 2013-07-10
BR122015006403B1 (pt) 2018-10-23
CA2880205A1 (en) 2008-11-20
MY184361A (en) 2021-04-01
PL2910692T3 (pl) 2020-01-31
EP2910692A3 (en) 2015-11-04
BR122015006394B1 (pt) 2018-10-16
EP2865814B1 (en) 2019-01-02
SI2865814T1 (sl) 2019-03-29
DK2160498T3 (en) 2015-05-11
KR101651385B1 (ko) 2016-08-25
CY1122085T1 (el) 2020-11-25
EP2160498A4 (en) 2011-12-28
PL2160498T3 (pl) 2015-07-31
CY1121239T1 (el) 2020-05-29
CY1116392T1 (el) 2017-02-08
EP2889434A1 (en) 2015-07-01
DK2910692T3 (da) 2019-10-07
SI2160498T1 (sl) 2015-07-31
LT2910692T (lt) 2019-10-25
BRPI0811427B1 (pt) 2018-10-16
KR20150020674A (ko) 2015-02-26
SI2910692T1 (sl) 2019-11-29
LT2865814T (lt) 2019-02-25
CA2686620A1 (en) 2008-11-20
AU2008251647A1 (en) 2008-11-20
CN102720244B (zh) 2015-05-06
CN101688385B (zh) 2013-08-14
EP2865814A3 (en) 2015-10-28
DK2889434T3 (en) 2019-04-23
BR122015006401A2 (pt) 2018-04-03
BRPI0811427A2 (pt) 2017-05-02
KR20150044974A (ko) 2015-04-27
CN102720244A (zh) 2012-10-10
JP5813068B2 (ja) 2015-11-17
KR101595577B1 (ko) 2016-02-18
MX2009012181A (es) 2009-12-09
PL2889434T3 (pl) 2019-07-31
MY171629A (en) 2019-10-22
EA015217B1 (ru) 2011-06-30
CN103147480A (zh) 2013-06-12
AP2751A (en) 2013-09-30
EP2910692B1 (en) 2019-08-07
EA200901511A1 (ru) 2010-06-30
JP2014001625A (ja) 2014-01-09
EP2865814A2 (en) 2015-04-29
AU2008251647B2 (en) 2012-12-06
ES2719133T3 (es) 2019-07-08
HRP20190291T1 (hr) 2019-04-05
KR101618022B1 (ko) 2016-05-03
ES2711820T3 (es) 2019-05-07
DK2865814T3 (en) 2019-03-11
HRP20150541T1 (hr) 2015-07-03
SI2889434T1 (sl) 2019-06-28
PT2865814T (pt) 2019-02-25
AU2008251647C1 (en) 2016-12-22

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