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US3077999A - Multi-purpose loader bucket - Google Patents

Multi-purpose loader bucket Download PDF

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Publication number
US3077999A
US3077999A US24954A US2495460A US3077999A US 3077999 A US3077999 A US 3077999A US 24954 A US24954 A US 24954A US 2495460 A US2495460 A US 2495460A US 3077999 A US3077999 A US 3077999A
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United States
Prior art keywords
cover
bucket
bowl
body member
pivoted
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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.)
Expired - Lifetime
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US24954A
Inventor
Svoboda James
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Caterpillar Inc
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Caterpillar Tractor Co
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Priority to US24954A priority Critical patent/US3077999A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4133—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device grabs carried out as loaders or mounted on a tractor

Definitions

  • FIG. 1 is a view in side elevation of a conventional loader with a bucket constructed in accordance with the present invention attached thereto;
  • FIG. 2 is an enlarged view of the bucket shown in FIG. 1 in loading position with its cover fully opened.
  • FIG. 3 is a view like FIG. 2 with parts in section with the cover removed and with the body of the bucket in raised position;
  • FIG. 4 is a similar view with the cover secured in place and the body and back of the bucket spread as for bull clamming operations;
  • FIG. 5 is an enlarged detail in section taken on the line V--V of FIG. 4;
  • FIG. 6 is a fragmentary perspective view with parts in section illustrating portions of the operating mechanism of the bucket
  • FIG. 7 is a perspective fragmentary detail showing the opposite side of the structure illustrated in FIG. 6;
  • FIG. 8 is a view illustrating the manner in which the bucket can be used in a modified bull clamming or loading operation where depth control is desirable;
  • FIG. 9 is a view illustrating the bucket in the operation of handling a log or pole.
  • FIG. 10 is a view illustrating the bucket as it may be used in cutting a bank.
  • the loader bucket of the present invention is illustrated in FIG. 1 in association with a conventional wheeltype loader and conventional bucket handling mechanism which comprises a pair of lift arms 10 and tilt linkage, generally indicated at 11, both pivotally connected to the bucket and operable by hydraulic jacks, not shown, to raise and lower the bucket through the medium of the lift arms and to tilt the bucket between loading, carrying and dump positions in a well known manner.
  • a conventional wheeltype loader and conventional bucket handling mechanism which comprises a pair of lift arms 10 and tilt linkage, generally indicated at 11, both pivotally connected to the bucket and operable by hydraulic jacks, not shown, to raise and lower the bucket through the medium of the lift arms and to tilt the bucket between loading, carrying and dump positions in a well known manner.
  • the bucket of the present invention is constructed of three major articulately connected parts which, as shown in FIGS. 1 and 2, are a bowl 12 with a back member 1 and a cover 16.
  • the back member is pivotally connected to the bowl as at 17 having forwardly extending wings at both ends through which pivot pins extend.
  • the cover 16 is pivoted to the bowl as at 18 for swinging movement between the closed position illustrated in FIG. 1 and the open position illustrated in full lines in FIG. 2.
  • a hydraulic jack 20' is pivotally connected at one end with respect to the back member 14 by a pin 21 as is shown in FIG. 6 and as will be hereinafter more fully described.
  • the rod of this jack is pivoted as by a pin 22- to the cover member so that retraction and eX- tension of the rod will open and close the cover.
  • a similar jack is employed at the opposite side of the bucket to balance the forces and stresses to which the parts are subjected but a description of one jack will .sutfice for an understanding of the present invention.
  • These jacks are included in a conventional hydraulic circuit with control means disposed within reach of the operator of the tractor upon which the bucket is mounted.
  • Ordinary loading operations with the bucket may be accomplished with the structure illustrated in FIGS. 1 and 2 and in the usual manner of loading, carrying and dumping material either with the cover in its open position as shown in FIG. 2, or .if desired, with the cover closed during the lifting and carrying operations to aid in retaining a load within the bucket.
  • the cover 16 may be removed for operations where it is not required and as shown in FIG. 3, the rods of the jacks 20 may then be connected as by pins 24 to the same pivot openings employed for connecting the cover with the bowl.
  • the bowl may be raised relative to the back 14 as shown in FIG. 3 and a cutting edge 25 is provided on the back 14 to enable the use of the back as an ordinary bulldozer. Material gathered by the bulldozing back 14 utilized in this position may be picked up and moved by manipulating the jacks 20 to lower the bowl to its closed position.
  • FIG. 4 illustrates an arrangement of the bucket where it is to be used for bull clamming operations with the cover 16 secured in place against the bowl 12 by locking means generally indicated at 27 and with the jack connected to the cover as at 22 so that actuation of the jack functions to open and close the back 14 and the bowl 12 relative to each other.
  • FIG. 8 illustrates the use of the bucket in a sort of modified bull clamming or scraping operation wherein the depth of cut is controlled by lowering the bowl into engagement with the surface of the earth and making a cont-rolled cut with the cutting edge on the back member with the spoil entering upwardly into the bowl and retainable therein by closing the bowl against the back.
  • FIG. 9 shows the same combination of parts illustrated in PEG. 8 employed in the handling of a log or pole which may be gripped between the back and the bowl.
  • the forwardly extending side wings of the back are curved rearwardly above the cutting edge to enable secure gripping of the log or pole being handled.
  • FIG. 10 illustrates a further use of the bucket in cutting or trimming 'a bank where the cover is raised while the cutting edge at the front of the bowl engages and moves upwardly against the wall of the back being formed.
  • Light finishing or trimming of the bank may also be accomplished by manipulation of the jack 20 to swing the cover downwardly with its leading edge in scraping contact with the surface of the bank whereby soil removed will be received in the bowl.
  • the locking or securing means generally indicated at 27 comprises an eye bolt 29 with its eye embracing a hook 30 welded to the side of the bowl and its opposite end which is threaded disposed between a pair of lugs 31 on the cover so that a nut onthe threaded end secures the cover against movement relative to the bowl.
  • An identical locking member is employed on the opposite side of the bucket.
  • the bucket is also provided with a second book 32 and the back 14 has spaced lugs 33 so that the same eye bolt may be employed for securing the bowl and the back against relative movement as for example in the arrangement illustrated in FIG. 2 where the locking device is again generally indicated at 27.
  • FIGS. 4 and 5 It is desirable to provide means for guiding the cover into proper registry when the bowl is moved towards its closed position and this is accomplished by means illustrated in FIGS. 4 and 5 in the form of guide members 35.
  • the members 35 are welded to the opposite edges of the cover in a position to embrace the edges of the bowl as the cover moves to its closed position.
  • FIGS. 6 and 7 The manner in which the jacks 20 are mounted is best shown in FIGS. 6 and 7 wherein the back member 14 is shown as formed with a separate end wall 37 spaced inwardly from its extreme end and connected therewith by a forwardly curved plate 38 forming a protective pocket for reception of the jacks and their pivot pins as shown in FIG. 6.
  • a bearing bracket 39 receives both or" the pins 17 and 18 to lend rigidity to the operating link-age.
  • Stop means to limit the upward swinging movement of the bowl with respect to the back may also be disposed within the recess which houses the jack as shown in FIG. 3 wherein a plate 4% supports a stop member 41 engage able by the bearing bracket 39 to prevent further raising of the bowl 12.
  • a loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, a cover similarly pivoted for opening and closing the front of the body member, said cover having a portion overlying the back member, and power means between the back member and said portion for selectively swinging the cover and back member relative to the body member.
  • a loader bucket of the kind described which com prises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, and a cover similarly pivoted for opening and closing the front of the body member, power means between the back member and cover to swing the cover relative to the body member, and latch means to secure the back member and body member against relative pivotal movement.
  • a loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed posi tions relative thereto, and a cover similarly pivoted for opening and closing the front of the body member, power means between the back member and cover to swing the cover relative to the body member, and means to secure the cover and body member against relative pivotal movement whereby said power means becomes efieotive to swing the bodymember relative to the back member.
  • a loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, and a cover similarly removably pivoted for opening and closing the front of the body member, power actuated extensible means pivoted at one end to the back member and at the other end to the cover, and arranged, upon removal of the cover, to be pivotally connected at said other end to the body member to swing the body member relative to the back memher.
  • a loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, and a cover similarly removably pivoted for opening and closing the front of the body member, power actuated extensible means pivoted at one end to the back member and at the other end to the cover, and arranged, upon removal of the cover, to be pivotally connected at said other end to the body member on the same axis of the pivotal connection between the cover and body member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)

Description

Feb. 19, 1963 J. SVOBODA 3,077,999
MULTI-PURPOSE LOADER BUCKET Filed April 2'7, 1960 e Sheets-Sheet 1 INVENTOR. L/A/VES SI/050404 A TTOR1VEYS Feb. 19, 1963 J. SVOBODA 3,077,999
MULTI-PURPOSE LOADER BUCKET Filed April 27, 1960 s Sheets-Sheet 2 INVEN TOR. WIVES 5405604 ATTOR1VEYS\ Feb. 19, 1963 .1. SVOBODA MULTI-PURPOSE LOADER BUCKET 6 Sheets-Sheet 3 Filed April 2'7, 1960 Feb. .19, 1963 J. svoBoDA MULTI- PURPOSE LQADER BUCKET 6 :She sis-She at 4 .Ffillzed April 27, 1960 YINVENTOR.
c/lxvzs 67050.04
ATTORNEYS Feb. 19, 1963 J. SVOBODA MULTI-PURPOSE LOADER BUCKET 6 Sheets-Sheet 5 Filed April 2'7, 1960 INVENTOR. c/orzs 67 0004 Arramvzys Feb. 19, 1963 J. SVOBODA 3,077,999
MULTI-PURPOSE LOADER BUCKET Filed April 27, 1960 6 Sheets-Sheet 6 IN VEN TOR. (Al/ 5 51 0500:
1 Z 22 M W ATTORNEYS United States Patent ()fitice 3,077,999 Patented Feb. 19, 1963 3,077,999 MULTl-PURFGSE LOADER BUCKET James Svohoda, North Aurora, 113., assignor to Caterp llar Tractor $0., Peoria, 111., a corporation of California Filed Apr. 27, 1960, Ser. No. 24,954 fiiaims. (Cl. 214--145) This invention relates to loader buckets and particularly to a bucket made of several articulately connected sections which make it possible to operate the bucket in many different positions for different types of operations .or jobs.
It is an object of the present invention to provide a bucket adapted to be connected to the lift arm and tilt linkage of a conventional loader and, through articulated parts powered for relative movement, to be adjusted to positions which enable its efiicient use for many different types of operations.
It is also an object ofthe present invention to provide a loader bucket which is readily adjustable to positions for use in ordinary loading operations as well as for many other operations such as bull clarnming, bulldozing, back dragging, transporting logs, pipes and other similar articles, loading trash or loose materials and cutting banks.
Further and more specific objects and advantages are made apparent in the following specification wherein the invention is described in detail by reference to the accompanying drawings.
In the drawings:
FIG. 1 is a view in side elevation of a conventional loader with a bucket constructed in accordance with the present invention attached thereto;
FIG. 2 is an enlarged view of the bucket shown in FIG. 1 in loading position with its cover fully opened.
FIG. 3 is a view like FIG. 2 with parts in section with the cover removed and with the body of the bucket in raised position;
FIG. 4 is a similar view with the cover secured in place and the body and back of the bucket spread as for bull clamming operations;
FIG. 5 is an enlarged detail in section taken on the line V--V of FIG. 4;
FIG. 6 is a fragmentary perspective view with parts in section illustrating portions of the operating mechanism of the bucket;
FIG. 7 is a perspective fragmentary detail showing the opposite side of the structure illustrated in FIG. 6;
FIG. 8 is a view illustrating the manner in which the bucket can be used in a modified bull clamming or loading operation where depth control is desirable;
FIG. 9 is a view illustrating the bucket in the operation of handling a log or pole; and
FIG. 10 is a view illustrating the bucket as it may be used in cutting a bank.
The loader bucket of the present invention is illustrated in FIG. 1 in association with a conventional wheeltype loader and conventional bucket handling mechanism which comprises a pair of lift arms 10 and tilt linkage, generally indicated at 11, both pivotally connected to the bucket and operable by hydraulic jacks, not shown, to raise and lower the bucket through the medium of the lift arms and to tilt the bucket between loading, carrying and dump positions in a well known manner.
The bucket of the present invention is constructed of three major articulately connected parts which, as shown in FIGS. 1 and 2, are a bowl 12 with a back member 1 and a cover 16. The back member is pivotally connected to the bowl as at 17 having forwardly extending wings at both ends through which pivot pins extend. The cover 16 is pivoted to the bowl as at 18 for swinging movement between the closed position illustrated in FIG. 1 and the open position illustrated in full lines in FIG. 2. A hydraulic jack 20' is pivotally connected at one end with respect to the back member 14 by a pin 21 as is shown in FIG. 6 and as will be hereinafter more fully described. The rod of this jack is pivoted as by a pin 22- to the cover member so that retraction and eX- tension of the rod will open and close the cover. A similar jack, not shown, is employed at the opposite side of the bucket to balance the forces and stresses to which the parts are subjected but a description of one jack will .sutfice for an understanding of the present invention. These jacks are included in a conventional hydraulic circuit with control means disposed within reach of the operator of the tractor upon which the bucket is mounted.
Ordinary loading operations with the bucket may be accomplished with the structure illustrated in FIGS. 1 and 2 and in the usual manner of loading, carrying and dumping material either with the cover in its open position as shown in FIG. 2, or .if desired, with the cover closed during the lifting and carrying operations to aid in retaining a load within the bucket.
The cover 16 may be removed for operations where it is not required and as shown in FIG. 3, the rods of the jacks 20 may then be connected as by pins 24 to the same pivot openings employed for connecting the cover with the bowl. With this arrangement, the bowl may be raised relative to the back 14 as shown in FIG. 3 and a cutting edge 25 is provided on the back 14 to enable the use of the back as an ordinary bulldozer. Material gathered by the bulldozing back 14 utilized in this position may be picked up and moved by manipulating the jacks 20 to lower the bowl to its closed position.
FIG. 4 illustrates an arrangement of the bucket where it is to be used for bull clamming operations with the cover 16 secured in place against the bowl 12 by locking means generally indicated at 27 and with the jack connected to the cover as at 22 so that actuation of the jack functions to open and close the back 14 and the bowl 12 relative to each other.
FIG. 8 illustrates the use of the bucket in a sort of modified bull clamming or scraping operation wherein the depth of cut is controlled by lowering the bowl into engagement with the surface of the earth and making a cont-rolled cut with the cutting edge on the back member with the spoil entering upwardly into the bowl and retainable therein by closing the bowl against the back.
FIG. 9 shows the same combination of parts illustrated in PEG. 8 employed in the handling of a log or pole which may be gripped between the back and the bowl. To facilitate this operation, the forwardly extending side wings of the back are curved rearwardly above the cutting edge to enable secure gripping of the log or pole being handled.
FIG. 10 illustrates a further use of the bucket in cutting or trimming 'a bank where the cover is raised while the cutting edge at the front of the bowl engages and moves upwardly against the wall of the back being formed. Light finishing or trimming of the bank may also be accomplished by manipulation of the jack 20 to swing the cover downwardly with its leading edge in scraping contact with the surface of the bank whereby soil removed will be received in the bowl.
Referring back to FIG. 4, the locking or securing means generally indicated at 27 comprises an eye bolt 29 with its eye embracing a hook 30 welded to the side of the bowl and its opposite end which is threaded disposed between a pair of lugs 31 on the cover so that a nut onthe threaded end secures the cover against movement relative to the bowl. An identical locking member is employed on the opposite side of the bucket. The bucket is also provided with a second book 32 and the back 14 has spaced lugs 33 so that the same eye bolt may be employed for securing the bowl and the back against relative movement as for example in the arrangement illustrated in FIG. 2 where the locking device is again generally indicated at 27.
It is desirable to provide means for guiding the cover into proper registry when the bowl is moved towards its closed position and this is accomplished by means illustrated in FIGS. 4 and 5 in the form of guide members 35. The members 35 are welded to the opposite edges of the cover in a position to embrace the edges of the bowl as the cover moves to its closed position.
The manner in which the jacks 20 are mounted is best shown in FIGS. 6 and 7 wherein the back member 14 is shown as formed with a separate end wall 37 spaced inwardly from its extreme end and connected therewith by a forwardly curved plate 38 forming a protective pocket for reception of the jacks and their pivot pins as shown in FIG. 6. A bearing bracket 39 receives both or" the pins 17 and 18 to lend rigidity to the operating link-age.
Stop means to limit the upward swinging movement of the bowl with respect to the back may also be disposed Within the recess which houses the jack as shown in FIG. 3 wherein a plate 4% supports a stop member 41 engage able by the bearing bracket 39 to prevent further raising of the bowl 12.
I claim:
1. A loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, a cover similarly pivoted for opening and closing the front of the body member, said cover having a portion overlying the back member, and power means between the back member and said portion for selectively swinging the cover and back member relative to the body member.
2. A loader bucket of the kind described which com prises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, and a cover similarly pivoted for opening and closing the front of the body member, power means between the back member and cover to swing the cover relative to the body member, and latch means to secure the back member and body member against relative pivotal movement.
3. A loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed posi tions relative thereto, and a cover similarly pivoted for opening and closing the front of the body member, power means between the back member and cover to swing the cover relative to the body member, and means to secure the cover and body member against relative pivotal movement whereby said power means becomes efieotive to swing the bodymember relative to the back member.
4. A loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, and a cover similarly removably pivoted for opening and closing the front of the body member, power actuated extensible means pivoted at one end to the back member and at the other end to the cover, and arranged, upon removal of the cover, to be pivotally connected at said other end to the body member to swing the body member relative to the back memher.
5. A loader bucket of the kind described which comprises a body member having a bottom with upstanding end walls, a back member pivoted to the end walls upwardly thereof to swing between open and closed positions relative thereto, and a cover similarly removably pivoted for opening and closing the front of the body member, power actuated extensible means pivoted at one end to the back member and at the other end to the cover, and arranged, upon removal of the cover, to be pivotally connected at said other end to the body member on the same axis of the pivotal connection between the cover and body member.
References Cited in the file of this patent UNITED STATES PATENTS 2,291,858 Allin Aug. 4, 1942 2,529,208 Andersen Nov. 7, 1950 2,812,595 Drott Nov. 12, 1957 2,816,676 Avery et al. Dec. 17, 1957 2,883,772 Dodge Apr. 28, 1959 2,950,550 French Aug. 30, 1960

Claims (1)

1. A LOADER BUCKET OF THE KIND DESCRIBED WHICH COMPRISES A BODY MEMBER HAVING A BOTTOM WITH UPSTANDING END WALLS, A BACK MEMBER PIVOTED TO THE END WALLS UPWARDLY THEREOF TO SWING BETWEEN OPEN AND CLOSED POSITIONS RELATIVE THERETO, A COVER SIMILARLY PIVOTED FOR OPENING AND CLOSING THE FRONT OF THE BODY MEMBER, SAID COVER HAVING A PORTION OVERLYING THE BACK MEMBER, AND POWER MEANS BETWEEN THE BACK MEMBER AND SAID PORTION FOR SELECTIVELY SWINING THE COVER AND BACK MEMBER RELATIVE TO THE BODY MEMBER.
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Cited By (38)

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US3148787A (en) * 1962-06-29 1964-09-15 Caterpillar Tractor Co Heavy duty multi-purpose loader bucket
US3206879A (en) * 1963-03-28 1965-09-21 Geo E Grover & Sons Ditching plow having movable sections
US3211065A (en) * 1961-12-26 1965-10-12 Caterpillar Tractor Co Hydraulic system for a universal bucket of a tractor mounted loader
US3250028A (en) * 1961-12-26 1966-05-10 Caterpillar Tractor Co Universal bucket for a tractor mounted loader
US3296720A (en) * 1962-09-04 1967-01-10 F X Meiller Fahrzeug Und Masch Grab shovel for tractive vehicles
US3336684A (en) * 1962-02-19 1967-08-22 Ulrich Mfg Co Load handling apparatus
US3344540A (en) * 1963-12-19 1967-10-03 Ulrich Mfg Co Universal load handling apparatus
US3451575A (en) * 1967-09-15 1969-06-24 Geza Petro Jr Conveyor bucket with hydraulically-operated grille-like lid
US3595416A (en) * 1969-06-03 1971-07-27 Floyd E Perrotti Fork attachment
US3700131A (en) * 1971-01-25 1972-10-24 Walter J Westendorf Grab fork attachment for a loader bucket
US3860131A (en) * 1972-06-14 1975-01-14 Int Harvester Co Bucket mounting hinge
US4051614A (en) * 1975-10-28 1977-10-04 Diggs Richard E High capacity loader blade
US4142642A (en) * 1977-11-14 1979-03-06 Caterpillar Tractor Co. Counterweight assembly for earth-working equipment
EP0039373A2 (en) * 1980-05-02 1981-11-11 Resonant Technology Company Compact resonance drive for earth-working equipment
US4790084A (en) * 1988-03-07 1988-12-13 J. I. Case Company Backhoe bucket transport system
US4804309A (en) * 1987-10-01 1989-02-14 Risch Joel V Gripping device for boom-mounted work tool
FR2657593A1 (en) * 1990-01-31 1991-08-02 Bonnel Charrues Tool for loading device, particularly for an agricultural tractor
US5114299A (en) * 1989-08-08 1992-05-19 Thomas Roche Attachment for a prime mover
US5165191A (en) * 1992-02-25 1992-11-24 William G. Davis Front end loader attachment convertible between loading bucket and side-shift-angle dozer configurations
US5813822A (en) * 1997-01-09 1998-09-29 Pacific Services & Manufacturing Bucket and thumb combination as a quick decoupling attachment
US5997237A (en) * 1998-09-30 1999-12-07 Westendorf Manufacturing Co., Inc. Clam shell bucket and method of operating
US6374520B1 (en) 2000-08-15 2002-04-23 Westendorf Manufacturing Co., Inc. Bucket for front end loader and method for transporting
US6582177B1 (en) 2000-08-15 2003-06-24 Westendorf Manufacturing Co., Inc. Front end loader, tractor, and method for attaching a front end loader
US20040042888A1 (en) * 2000-08-15 2004-03-04 Westendorf Neal W. Front end loader, tractor, and method for attaching a front end loader
US20050111953A1 (en) * 2003-11-21 2005-05-26 Westendorf Neal W. Loader assembly, combination motor vehicle and loader assembly, hydraulic cylinders and methods for operating a loader assembly
US20050111952A1 (en) * 2003-11-21 2005-05-26 Westendorf Neal W. Loader/attachment assembly, method for using a loader/attachment assembly, and combination motor vehicle and loader/attachment assembly
US20050175438A1 (en) * 2004-02-06 2005-08-11 Stender James C. Loader assembly, method for using a loader assembly, and combination motor vehicle and loader assembly
US20050184510A1 (en) * 2004-02-06 2005-08-25 Langenfeld Joseph W. Hydraulic line attachment device and method
US20060051193A1 (en) * 2004-09-03 2006-03-09 Westendorf Neal W Grapple assembly, a front end loader having a grapple assembly, and method for operating a grapple assembly
US20060051194A1 (en) * 2004-09-03 2006-03-09 Westendorf Neal W Pinching fingers attachment for utility vehicles
US20070059148A1 (en) * 2005-09-09 2007-03-15 Westendorf Manufacturing Co., Inc. Independent hydraulic pinching fingers attachment for utility vehicles
US7241101B2 (en) 2002-05-28 2007-07-10 Westendorf Manufacturing Company, Inc. Double action grab fork and method
US20090217555A1 (en) * 2007-02-28 2009-09-03 Leonard Mark A Multiple purpose attachment for a front loader
US8221049B1 (en) 2005-09-09 2012-07-17 Westendorf Manufacturing Co., Inc. Independent hydraulic pinching fingers with detachable secondary implement
US8322969B1 (en) 2009-09-10 2012-12-04 Westendorf Manufacturing, Co. Loader assembly and method providing for cantilevered storage of lift arms
US8631596B2 (en) 2011-01-20 2014-01-21 Ben Tulibaski Material-handling bucket with scraper blade
US20140137444A1 (en) * 2012-11-16 2014-05-22 Caterpillar Inc. Loader bucket with counterweight
US20160222622A1 (en) * 2015-01-30 2016-08-04 Caterpillar Inc. Tool coupler

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US2291858A (en) * 1940-08-19 1942-08-04 Isaacson Iron Works Wheeled scraper
US2529208A (en) * 1946-02-20 1950-11-07 Certified Equipment Corp Bulldozer attachment
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