WO2011038482A1 - Excavator tooth retention device - Google Patents

Excavator tooth retention device Download PDF

Info

Publication number
WO2011038482A1
WO2011038482A1 PCT/CA2010/001470 CA2010001470W WO2011038482A1 WO 2011038482 A1 WO2011038482 A1 WO 2011038482A1 CA 2010001470 W CA2010001470 W CA 2010001470W WO 2011038482 A1 WO2011038482 A1 WO 2011038482A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamp
wedge
retention device
block
tooth
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.)
Ceased
Application number
PCT/CA2010/001470
Other languages
French (fr)
Inventor
Garret D. Knight
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.)
Raptor Mining Products Inc
Original Assignee
Raptor Mining Products Inc
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
Priority to CN201080043455.1A priority Critical patent/CN102575460B/en
Priority to AU2010302883A priority patent/AU2010302883B2/en
Priority to CA2774602A priority patent/CA2774602C/en
Priority to EP10819761.7A priority patent/EP2483482B1/en
Priority to JP2012530056A priority patent/JP2013506065A/en
Priority to ES10819761T priority patent/ES2767253T3/en
Priority to BR112012006856A priority patent/BR112012006856A2/en
Priority to MX2012003580A priority patent/MX2012003580A/en
Application filed by Raptor Mining Products Inc filed Critical Raptor Mining Products Inc
Priority to EA201270470A priority patent/EA024047B1/en
Priority to KR1020127007959A priority patent/KR101750123B1/en
Publication of WO2011038482A1 publication Critical patent/WO2011038482A1/en
Priority to CL2012000672A priority patent/CL2012000672A1/en
Priority to ZA2012/02135A priority patent/ZA201202135B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • E02F9/2825—Mountings therefor using adapters

Definitions

  • the invention relates to excavator equipment with a bucket or shovel of the type having teeth, and in particular to a retaining device for retaining teeth on the shovel or bucket of such equipment, in which the retaining device can be fastened and released without the use of hammers.
  • Excavators usually have a bucket or shovel, and teeth are attached to the leading edge of the bucket, to assist in penetrating the material.
  • the teeth are subject to heavy wear. They are replaced at frequent service intervals..
  • Tooth retention devices are provided which attach to the leading edge of the bucket . These devices have mechanisms which secure the individual teeth . They permit the release and replacement of the teeth as required.
  • the tooth retention devices are also subject to heavy wear. They are releasably secured to the leading edge of the bucket . They must also be removed and replaced as required.
  • the invention is directed to such tooth retention devices , and to a system for attaching and releasing them without the use of hammers.
  • the invention seeks to provide a tooth retention device for attachment to an excavator bucket, which has a tooth mounting portion, a forked shaped body fitting over the edge of the bucket, a clamp passing through the body and the bucket, and a wedge holding the clamp in position, in which the wedge has a threaded rod and a wedge block on the rod.
  • the rod is rotatable to move the block between locked and released positions.
  • the wedge is generally tapered from a narrow end to a wider end and the clamp has a wedge engaging surface angled to receive the tapered wedge.
  • the lip of the bucket is formed with an opening through which the clamp can be passed, and the lip of the bucket has a wedge engaging surface for receiving the wedge.
  • the lip of the bucket is also formed with diverging pressure surfaces and the clamp is formed with diverging clamping surfaces, the respective surfaces being inter engageable when the wedge is inserted.
  • the clamp also has wedge receiving recesses, through which the wedge can be inserted between the clamp and the lip so that when the block on the wedge is tightened up, the lip and the clamp are forced apart, thereby forcing the clamp into engagement with the lip.
  • a resilient cap which can be applied to the top of the rod, and the rod has a head, receiving the cap, so as to protect the head of the threaded rod from damage.
  • the threaded rod has an annular collar
  • the wedge has a semi annular recess, with the collar fitting within the recess, while permitting the threaded rod to be rotated.
  • the wedge has a wedge block with a wedge rack portion.
  • the clamp has a clamp rack portion, the two rack portions being inter engagable securely.
  • the wedge block has a threaded bore, and through the threaded bore, the threaded rod is connected so that the block can be tightened up.
  • Figure 1 is a general isometric view of an excavator bucket
  • Figure 2 is an isometric exploded view of a tooth retention device
  • Figure 3 is a section showing the wedge block in a first position
  • Figure 4 is a section showing a further embodiment of the wedge block in a second position
  • Figure 5 is an isometric of the wedge and wedge block and cap
  • Figure 6 is a partly cut away view top plan of the plastic cap
  • FIG. 1 it will be seen that the invention is illustrated there in relation to an excavator bucket (10 ) .
  • the bucket is mounted on any of a variety of pieces of excavator equipment (not shown) which require no description.
  • the bucket has a leading lower lip or edge (12 ) provided with a plurality of
  • Each tooth is retained on an individual tooth retention device (16 ).
  • the tooth retention devices are secured to the lip ( 2)at spaced intervals.
  • Each tooth can be attached to and removed from its tooth retention device by means known in the art and requiring no description.
  • the tooth retention device (16 ) is also releasable and replaceable, as and when required.
  • the attachment system used for this purpouse involved the use of simple metal wedge pieces, which were hammered into a space in the tooth retention device . Removal involved hammering the wedges pieces, in the opposite direction, to release them.
  • the invention is directed to a tooth retention device having an improved attachment for securing the tooth retention devices to the bucket, and enabling its release for replacement in a quicker more efficient manner.
  • a first embodiment of the tooth retention device is shown in more detail in Figs 2 and 3;
  • the tooth retention device (16) of this embodiment comprises a main body (18 ) having a forwardly extending tooth mounting portion (20 ) formed integrally. This support fits into the tooth (T)in known manner, and the tooth is secured in known manner..
  • the lip or edge (12 ) is formed with clamp openings (26 ) and angled diverging pressure surfaces (30).
  • the arms (22 ) and (24 ) are formed with respective clamp receiving openings (28 ) .
  • C - shaped clamps (32 ) are shaped and adapted to fit through clamp openings (28 ), in arms (22), (24), and through clamp openings (26 )in the edge (12).
  • the upper and lower edges (34 ) of the C clamp are formed at angles as to make a tapered wedging fit against angled surfaces (30) of lip (12 )
  • the C clamp (32 ) is formed with a rectangular recess (36) .
  • Each retention device is provided with a releasable wedge member (38 ) .
  • Wedge member (38) consists of an integral wedge body (40 ) tapering from a wide upper end to a narrower lower end , and having a generally U-shaped channel (42), with a semi-annular ridge (44 ) at its upper end.
  • channel (42 ) there is a threaded rod (46 ), with an annular groove (48) for receiving the ridge (44 ) .
  • block (50 ) extends out from channel (42 ) .
  • Rotation of rod (46) will drive the block (50) up or down channel (42)
  • the engagement of the groove(48) in the ridge (44) retains the rod (46) in a predetermined location, while allowing it to rotate for purposes described below.
  • a C clamp (32) is then slid through the clamp slots (28) and clamp opening (26), with its upper and lower angled surfaces (34) fitting over the angled surfaces (30).
  • a wedge member ( 38) is then slid down into the clamp slots (28) and clamp opening
  • the block (50) will then contact the C clamp (32) within rectangular space (36 ) .
  • FIG. 4 A further embodiment of the invention is illustrated in Figures 4, 5 & 6.
  • the wedge member is illustrated as (60).
  • the wedge member (60) has a wedge body (62) tapering from a wide upper end to a narrower lower end.
  • the wedge body (62) has a generally u-shaped channel (64) .
  • the channel (64) there is a semi-annular ridge (66) forming a collar.
  • the rod ( 68) has a head portion (30 ) with an annular groove (72 ) formed around it, to receive the ridge (66) .
  • a block nut (74 ) is threadedly received on the threaded rod (68 ) .
  • the block nut (74 ) has a ridged rack portion (76) extending therefrom normal to the axis of the nut (74)
  • the C clamp (32 ) in this embodiment is somewhat modified. It has a clamp rack portion (78 ) formed thereon, located in a generally rectangular shaped block (80 ) extending upwardly and downwardly, and receiving rack (76) of the block nut (74 ).
  • the threaded rod is first of all rotated so as to drive the block nut down to the lower most point on the rod.
  • the wedge member is then inserted, in the same way as before in the previous embodiment, seating against the lip
  • a cap (80) typically formed of resilient synthetic plastic material or the like, will be press fitted onto the top of the nut (74), thereby preventing it from rotating. At the same time it will prevent the entry of foreign matter, which might damage the key surfaces on the nut head, and make it difficult to remove.
  • a cap is also used in the embodiment of Figs 2 and 3.
  • the cap (80) has internal ridges formed to inter-engage with grooves on the head of the rod. This will resist any tendency for the thread not to be loosened during use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)
  • Clamps And Clips (AREA)

Abstract

A tooth retention device (16) for attachment to an excavator bucket (10), which has a tooth mounting portion (20), a fork shaped body (22, 24) fitting over the edge (12) of the bucket (10), a clamp (32) passing through the body (22, 24) and the bucket (10), and a wedge (38) holding the clamp (32) in position, in which the wedge has a threaded rod (46) and (72) and a threaded block (50) on the rod (68). The rod (68) is rotatable to move the block (50) between locked and released positions.

Description

EXCAVATOR TOOTH RETENTION DEVICE
FIELD OF THE INVENTION
The invention relates to excavator equipment with a bucket or shovel of the type having teeth, and in particular to a retaining device for retaining teeth on the shovel or bucket of such equipment, in which the retaining device can be fastened and released without the use of hammers.
BACKGROUND OF THE INVENTION
Excavators usually have a bucket or shovel, and teeth are attached to the leading edge of the bucket, to assist in penetrating the material. The teeth are subject to heavy wear. They are replaced at frequent service intervals..
Tooth retention devices are provided which attach to the leading edge of the bucket . These devices have mechanisms which secure the individual teeth . They permit the release and replacement of the teeth as required.
The tooth retention devices are also subject to heavy wear. They are releasably secured to the leading edge of the bucket . They must also be removed and replaced as required.
The invention is directed to such tooth retention devices , and to a system for attaching and releasing them without the use of hammers.
BRIEF SUMMARY OF THE INVENTION.
The invention seeks to provide a tooth retention device for attachment to an excavator bucket,, which has a tooth mounting portion, a forked shaped body fitting over the edge of the bucket, a clamp passing through the body and the bucket, and a wedge holding the clamp in position, in which the wedge has a threaded rod and a wedge block on the rod. The rod is rotatable to move the block between locked and released positions.
Preferably the wedge is generally tapered from a narrow end to a wider end and the clamp has a wedge engaging surface angled to receive the tapered wedge.
Preferably, the lip of the bucket is formed with an opening through which the clamp can be passed, and the lip of the bucket has a wedge engaging surface for receiving the wedge. Preferably the lip of the bucket is also formed with diverging pressure surfaces and the clamp is formed with diverging clamping surfaces, the respective surfaces being inter engageable when the wedge is inserted.
Preferably the clamp also has wedge receiving recesses, through which the wedge can be inserted between the clamp and the lip so that when the block on the wedge is tightened up, the lip and the clamp are forced apart, thereby forcing the clamp into engagement with the lip.
Preferably there is a resilient cap which can be applied to the top of the rod, and the rod has a head, receiving the cap, so as to protect the head of the threaded rod from damage.
Preferably, the threaded rod has an annular collar, and the wedge has a semi annular recess, with the collar fitting within the recess, while permitting the threaded rod to be rotated.
In a preferred embodiment of the Invention, the wedge has a wedge block with a wedge rack portion. The clamp has a clamp rack portion, the two rack portions being inter engagable securely. The wedge block has a threaded bore, and through the threaded bore, the threaded rod is connected so that the block can be tightened up.
The various features of novelty which characterize the invention are pointed out with more particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
IN THE DRAWINGS
Figure 1 is a general isometric view of an excavator bucket;
Figure 2 is an isometric exploded view of a tooth retention device ;
Figure 3 is a section showing the wedge block in a first position;
Figure 4 is a section showing a further embodiment of the wedge block in a second position;
Figure 5 is an isometric of the wedge and wedge block and cap; and,
Figure 6 is a partly cut away view top plan of the plastic cap; DESCRIPTION OF A SPECIFIC EMBODIMENT
Referring to fig 1 it will be seen that the invention is illustrated there in relation to an excavator bucket (10 ) . The bucket is mounted on any of a variety of pieces of excavator equipment (not shown) which require no description.
The bucket has a leading lower lip or edge (12 ) provided with a plurality of
tooth members (14).
Each tooth is retained on an individual tooth retention device (16 ).
The tooth retention devices are secured to the lip ( 2)at spaced intervals.
Each tooth can be attached to and removed from its tooth retention device by means known in the art and requiring no description.
The tooth retention device (16 ) is also releasable and replaceable, as and when required. In the past the attachment system used for this purpouse, involved the use of simple metal wedge pieces, which were hammered into a space in the tooth retention device . Removal involved hammering the wedges pieces, in the opposite direction, to release them.
This was tiresome, and difficult.
The invention is directed to a tooth retention device having an improved attachment for securing the tooth retention devices to the bucket, and enabling its release for replacement in a quicker more efficient manner.
A first embodiment of the tooth retention device is shown in more detail in Figs 2 and 3; The tooth retention device (16) of this embodiment comprises a main body (18 ) having a forwardly extending tooth mounting portion (20 ) formed integrally. This support fits into the tooth (T)in known manner, and the tooth is secured in known manner..
Extending rearwardly from body (18 ) there are upper and lower arms (22 ) and (24 ) , forming a fork . The arms embrace the lip (12 ) of the bucket (10 ) .
The lip or edge (12 ) is formed with clamp openings (26 ) and angled diverging pressure surfaces (30).
The arms (22 ) and (24 ) are formed with respective clamp receiving openings (28 ) . C - shaped clamps (32 ) are shaped and adapted to fit through clamp openings (28 ), in arms (22), (24), and through clamp openings (26 )in the edge (12). The upper and lower edges (34 ) of the C clamp are formed at angles as to make a tapered wedging fit against angled surfaces (30) of lip (12 )
In order to hold the C clamp (32) in position, the C clamp (32 ) is formed with a rectangular recess (36) .
Each retention device is provided with a releasable wedge member (38 ) .
Wedge member (38) consists of an integral wedge body (40 ) tapering from a wide upper end to a narrower lower end , and having a generally U-shaped channel (42), with a semi-annular ridge (44 ) at its upper end.
Within channel (42 ) there is a threaded rod (46 ), with an annular groove (48) for receiving the ridge (44 ) .
A wedge block (50 ) with an internal thread fits on rod (46 ) . A portion of
block (50 ) extends out from channel (42 ) . Rotation of rod (46) will drive the block (50) up or down channel (42) The engagement of the groove(48) in the ridge (44) retains the rod (46) in a predetermined location, while allowing it to rotate for purposes described below.
In operation the arms (22) and (24) are slid around the lip or edge (12) of the bucket, with the clamp opening (26) registering with the clamp slots (28).
A C clamp (32) is then slid through the clamp slots (28) and clamp opening (26), with its upper and lower angled surfaces (34) fitting over the angled surfaces (30).
A wedge member ( 38) is then slid down into the clamp slots (28) and clamp opening
(26) .
At this stage the wedge block nut (50) is threaded down to it lowest position on rod (46) A suitable tool (alien key or the like) engages head (52) and is then used to rotate rod
(46) .
This will cause the block (50 ) to move upwardly within channel (42).
The block (50) will then contact the C clamp (32) within rectangular space (36 ) .
Tightening of rod (46) will cause block (50 ) to clamp between the C clamp (32 ), and the lip (12 ) and hold the C clamp (32) firmly in position.
Removal of the retention device (10) proceeds in the opposite manner by reversing rod
(46) and thus releasing the block (50) from the C clamp (32) .
A further embodiment of the invention is illustrated in Figures 4, 5 & 6.
In these illustrations, the basic components, namely the tooth retention device (16), and the C clamp (32) , are retained. However in this embodiment the wedge member is illustrated as (60). The wedge member (60) has a wedge body (62) tapering from a wide upper end to a narrower lower end. The wedge body (62) has a generally u-shaped channel (64) .
At the upper end of the channel (64), there is a semi-annular ridge (66) forming a collar. Within the channel (66 ) , there is a threaded rod (68 ) . The rod ( 68) has a head portion (30 ) with an annular groove (72 ) formed around it, to receive the ridge (66) . A block nut (74 ) is threadedly received on the threaded rod (68 ) . The block nut (74 ) has a ridged rack portion (76) extending therefrom normal to the axis of the nut (74) The C clamp (32 ) in this embodiment is somewhat modified. It has a clamp rack portion (78 ) formed thereon, located in a generally rectangular shaped block (80 ) extending upwardly and downwardly, and receiving rack (76) of the block nut (74 ).
In operation, in this embodiment, the threaded rod is first of all rotated so as to drive the block nut down to the lower most point on the rod. The wedge member is then inserted, in the same way as before in the previous embodiment, seating against the lip
of the shovel. The threaded rack portion (76) on the block nut (74) , will engage the lower most ridges of the clamp rack portion (78 ) on the C clamp (32 ) . The rod (68) is then rotated, by a suitable tool such as an alien key (not shown). This will cause the block nut (74) to progress up the threaded rod (68). However since the block nut (74 ) rack portion (76)is engaging the rack portion (78) of the C-clamp (32), the block nut (74) cannot move upwardly. Consequently, such rotation of the rod will drive the entire wedge member (60) downwardly, thereby forcing it against the surface of the lip (12) , and at the same time urging the C clamp (32 ) rearwardly against the lip of the shovel itself. In this way the retention device is held securely in position.
For the sake of security, a cap (80) typically formed of resilient synthetic plastic material or the like, will be press fitted onto the top of the nut (74), thereby preventing it from rotating. At the same time it will prevent the entry of foreign matter, which might damage the key surfaces on the nut head, and make it difficult to remove. Such a cap is also used in the embodiment of Figs 2 and 3.
The cap (80) has internal ridges formed to inter-engage with grooves on the head of the rod. This will resist any tendency for the thread not to be loosened during use.
The foregoing is a description of a preferred embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appended claims.

Claims

1 A tooth retention device (16) for attachment to an excavator bucket (10) and characterised by:
a tooth mounting portion (20);
a fork- shaped body (18, 22, 24) forming part of said tooth mounting portion (20) fitting over an edge (12) of the bucket (10);
a clamp (32) passing through the body (22, 24) and the bucket (10) , and
a wedge (38) holding the clamp in position.
2. A tooth retention (16) device as claimed in Claim 1 and further characterised by a threaded rod (46) and a threaded wedge block (50) on the rod (46), wherein the rod (46) is rotatable to move the block along the rod (46) between locked and released positions.
3. A tooth retention device (16) as claimed in Claim 2 and further characterised by wedge receiving openings (28) in said fork shaped body (22, 24) , and a clamp receiving opening (26) in said edge (12) of said bucket (10).
4. A tooth retention device (16) as claimed in Claim 3 and further characterised by said wedge (38) having a generally tapering shape from a narrower end to a wider end.
5. A tooth retention device (16) as claimed in Claim 4 and further characterised by said clamp (32) having a wedge block receiving recess (36), and wherein said block (50) is moveable along said recess (36) between locked and released positions.
6. A tooth retention device as claimed in Claim 4 further characterised by said wedge (38) having a channel (42) receiving said threaded rod (46), and a semi annular ridge (44) formed in said channel, and an annular groove (48) in said rod (46), receiving said ridge (44).
7. A tooth retention device (16) as claimed in Claim 3 and further characterised by said block (50) being formed with a plurality of block rack teeth (76), and wherein said wedge clamp is formed with a plurality of clamp rack teeth (78), said block rack teeth (76) and said clamp rack teeth (78) being inter-engageable with one another upon operation of a threaded rod (68).
8. A tooth retention device (16) as claimed in Claim 7 and further characterised by said threaded rod (68) being formed with a head (70) at one end, and including a resilient cap (80) adapted to make a friction fit over said head (70), thereby retaining the same against inadvertent rotation.
9. A tooth retention device (16) as claimed in Claim 8 and including a generally semi- annular recess (66) formed in said clamp, and a semi-circular ring (72) formed on said threaded rod (68), and received in said semi-annular recess.
10. A tooth retention device (16) as claimed in Claim 1 and further characterised by said fork shaped body (22, 24) being formed with upper and lower diverging clamping surfaces (30), and wherein said clamp (32) is formed with upper and lower clamping surfaces (34), diverging from one another, and adapted to interfit with said clamping surfaces (30) of said fork shaped body (22, 24).
1 1 . A tooth retention device (16) as claimed in Claim 10 and further characterised by an excavator bucket (10), a edge portion (12) on said bucket, fitting into said fork shaped body (22, 24), and a clamp recess (26) formed through said edge portion, said wedge (38) being adapted to engage said edge (12), on one side of said wedge and said wedge being adapted to engage said clamp (32) on the opposite side of said wedge, thereby urging said clamp away from said edge portion.
PCT/CA2010/001470 2009-09-29 2010-09-20 Excavator tooth retention device Ceased WO2011038482A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
BR112012006856A BR112012006856A2 (en) 2009-09-29 2010-09-20 excavator tooth retainer
CA2774602A CA2774602C (en) 2009-09-29 2010-09-20 Excavator tooth retention device
EP10819761.7A EP2483482B1 (en) 2009-09-29 2010-09-20 Excavator tooth retention device
JP2012530056A JP2013506065A (en) 2009-09-29 2010-09-20 Excavator tooth holding device
ES10819761T ES2767253T3 (en) 2009-09-29 2010-09-20 Excavator Tooth Retention Device
MX2012003580A MX2012003580A (en) 2009-09-29 2010-09-20 Excavator tooth retention device.
EA201270470A EA024047B1 (en) 2009-09-29 2010-09-20 Excavator bucket teeth retention device
CN201080043455.1A CN102575460B (en) 2009-09-29 2010-09-20 excavator tooth retention device
AU2010302883A AU2010302883B2 (en) 2009-09-29 2010-09-20 Excavator tooth retention device
KR1020127007959A KR101750123B1 (en) 2009-09-29 2010-09-20 Excavator tooth retention device
CL2012000672A CL2012000672A1 (en) 2009-09-29 2012-03-16 Toothed retaining device to connect to an excavator shovel, it has: a toothed mounting portion, a fork-shaped body that forms part of said mounting toothed portion that fits over an edge of the shovel, a clamp and a wedge that Hold the clamp in position.
ZA2012/02135A ZA201202135B (en) 2009-09-29 2012-03-23 Excavator tooth retention device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27248709P 2009-09-29 2009-09-29
US61/272487 2009-09-29

Publications (1)

Publication Number Publication Date
WO2011038482A1 true WO2011038482A1 (en) 2011-04-07

Family

ID=43778707

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2010/001470 Ceased WO2011038482A1 (en) 2009-09-29 2010-09-20 Excavator tooth retention device

Country Status (14)

Country Link
US (2) US8458931B2 (en)
EP (1) EP2483482B1 (en)
JP (1) JP2013506065A (en)
KR (1) KR101750123B1 (en)
CN (1) CN102575460B (en)
AU (2) AU2010302883B2 (en)
BR (1) BR112012006856A2 (en)
CA (1) CA2774602C (en)
CL (1) CL2012000672A1 (en)
EA (1) EA024047B1 (en)
ES (1) ES2767253T3 (en)
MX (1) MX2012003580A (en)
WO (1) WO2011038482A1 (en)
ZA (1) ZA201202135B (en)

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JP2015510978A (en) * 2012-03-21 2015-04-13 ヘンズレー インダストリーズ インコーポレイテッド Screw-adjustable connector device for telescopic wear and support members
RU2700136C2 (en) * 2015-04-17 2019-09-12 Кейтерпиллар Инк. Clamp for working tool fixation system

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US8978277B2 (en) * 2012-06-06 2015-03-17 Raptor Mining Products Inc. Dual thread hammerless wedge and spool
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USD696698S1 (en) * 2012-12-11 2013-12-31 H&L Tooth Company Wedge key
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US9200433B2 (en) * 2013-10-03 2015-12-01 Caterpillar Inc. Tool retention system
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US9518380B2 (en) * 2014-01-15 2016-12-13 Caterpillar Inc. Tool retention system
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EP2483482A1 (en) 2012-08-08
CA2774602A1 (en) 2011-04-07

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