US3596996A - Method and apparatus for using a back hoe bucket as a frozen ground ripper - Google Patents

Method and apparatus for using a back hoe bucket as a frozen ground ripper Download PDF

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US3596996A
US3596996A US825162A US3596996DA US3596996A US 3596996 A US3596996 A US 3596996A US 825162 A US825162 A US 825162A US 3596996D A US3596996D A US 3596996DA US 3596996 A US3596996 A US 3596996A
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bucket
scarifier
attachment
shank
apertures
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Jack D Carter
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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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/962—Mounting of implements directly on tools already attached to the machine

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  • a two-piece multiposition ripper attachment for a back hoe is disclosed. In a first position, the attachment is stored out of the way so as to not interfere with normal use of the back hoe. In a second position, the attachment and method is exposed so that the back hoe may be used as a ripper in one orientation and may be used to perform its normal functions in a second orientation.
  • an attachment for a back hoe bucket which attachment may be used to rip or tear through a crustaceous surface such as frozen ground or asphalt.
  • the present invention contemplates a two-piece ripper attachment for a back hoe bucket.
  • the back hoe When the attachment is in one position, the back hoe may be used to perform its normal scooping operations in one orientation and may be used as a ripper in a second orientation.
  • the attachment When the attachment is in another position it is stored out of the way so as to not interfere with any of the normal uses of the back hoe bucket.
  • the bucket When the attachment is in its ripping orientation the bucket serves as a guide so as to not allow the ripper to dig too deeply and thus become hung up or stuck.
  • FIG. I shows the ripper attachment in its retracted position on a back hoe bucket
  • FIG. 2 shows the ripper attachment in its operating position on a back hoe bucket
  • FIG. 3 is an end view taken along the line 3-3 of FIG. I.
  • FIG. 4 is a sectional view taken along the line 4-4 of FIG. 2.
  • FIG. 1 a bucket or scoop I is shown with the ripper attachment in place.
  • the front end 2 of the bucket is used to scoop material.
  • the rear end of the bucket has a rearwardly projecting portion 4 provided with one or more holes 5.
  • These holes are normally provided on the bucket to allow variations in the point of attachment of the two levers 3 and 6 for specialized digging operations.
  • the particular back hoe bucket illustrated in FIG. 1 might occasionally be used with the lever 6 attached by means of a pin through the hole 5 rather than through the hole 7.
  • this hole 5 is not used for lever attachment and is thus available to attach the novel ripper of the present invention.
  • the orientation ofthe bucket l is controlled during use by the relative orientation of the levers 3 and 6. These levers may be hydraulically operated.
  • the attachment is seen to consist of a bracket portion 8 provided with a plurality of apertures or holes at the points 5, 9 and 10.
  • the aperture at 5 allows the bracket to be attached by means of a pin through the corresponding holes in the rearwardly projecting portion of the bucket.
  • the attachment further consists of a scarifier portion 11 shown as a vertically extending shank and a bit or tooth 12 attached to the lower end of the shank.
  • this shank is of rectangular cross section and is provided with at least one hole so that the shank may be attached to the bracket portion by mean of a pin generally indicated at 9 in FIG. 1.
  • Either the bracket or the shank or both are provided with a plurality of holes so that the pin at 9 may be removed and the shank portion lowered to its operational position as is shown in FIG. 2.
  • the shank portion has one or any number of holes and the bracket portion has one or any number of holes to allow for this adjustment.
  • FIG. 3 shows a bucket I having a bracket portion 8 attached to the rearwardly projecting portion of the bucket by means of a pin I3 which pin is held securely in place by the retaining ring 14.
  • This pin is seen in FIG. 1 as extending through the hole at 5 which hole passes through both the bracket and the rearwardly projecting portion of the bucket.
  • the shank portion 11 of the scarifier is attached to the bracket portion 8 by means of a removable pin 15 which passes through aligned holes in the bracket and the shank portion. This pin is held in place by a retainer 16.
  • FIG. 4 the rearwardly projecting portion of the bucket is seen to consist of two parallel pieces I7 and 18 and the pin 13 is seen to pass through a hole in 17, a hole in the bracket portion 8, and then a hole in 18 and to be held in position by the retaining ring 14.
  • the shank ll of the scarifier portion is seen to be attached to the bracket portion by the removable pin l5 which passes simultaneously through a first side of the bracket 19 through the shank 11 and subsequently through the other side of the bracket at 20.
  • This pin 15 is held in position by an easily removable retainer 16.
  • the shank is further held in position by a backing plate 21 on the bracket 8.
  • gussets or braces 22 may be welded to the sides 19 and 20 so as to more securely hold them to the body of the bracket 8.
  • the present device would typically be used as an attachment to the back hoe bucket of a tractorlike vehicle.
  • Such buckets typically have several holes which serve as points of attachment for the mechanical linkage which operates the bucket. There are normally more holes than necessary for operating the bucket.
  • the present attachment is fastened by a casehardened pin to one of these extra holes such as illustrated at 5 in FIG. 1.
  • the scarifier portion of the attachment is then slidably mounted within the bracket portion 8 by means of a second pin.
  • the bracket and scarifier are provided with several holes so that this second pin may be inserted so as to hold the entire attachment out of the way during extended periods of normal bucket use or may be held in a lower position for use of the attachment.
  • the advantages of this device should now also be clear.
  • the device is easy to install and no special tools or modifications of the bucket are necessary.
  • the device need not be removed in the summertime but can be left on the bucket in its up or stored position.
  • the device cannot hang up by going too deep.
  • the bucket serves as a guide or depth gauge, thus the bucket of FIG. 2 will disrupt or loosen frozen ground to a depth limited by the bottom of the bucket contacting the surface of the ground. If the bucket of FIG. 2 is rotated slightly clockwise, it will tear at a lesser depth.
  • the bucket As the bucket is rotated counterclockwise, it will dig at a deeper and deeper depth until it reaches a point where the tooth or bit 12 is an gled relative to the earth in such a way as to force the entire attachment back out of the ground. Thus, the attachment kicks itself out when digging too deeply.
  • the angle of inclination of the tooth 12 relative to the shank 11 may of course be varied from that shown in the drawing.
  • the tooth or bit on the end of the scarifier may be made to be replaceable on the end of the shank portion so that the entire shank and bit need not be replaced when the bit is worn out.
  • this tooth may be made pointed, that is, to have a triangular horizontal cross section rather than rectangular as shown in FIG. 3.
  • bracket portion provided with a plurality of apertures, a first of said apertures being adapted to removably attach said bracket portion to said rearwardly projecting portion;
  • a scarifier portion comprising a shank and a bit, said shank being elongated, said bit attached to said shank in the proximity of one end of said shank, said shank being provided with at least one aperture;
  • a pin adapted to pass simultaneously through another of said apertures in said bracket portion and an aperture in said shank portion to hold said scarifier portion in a first position with respect to said bracket portion, said pin being adapted to be removed and reinserted to align a second pair of apertures so as to hold said scarifier portion and said bracket portion in a second relative position.
  • bracket portion comprises a pair of separated parallel side portions and an attaching portion, said side portions adapted to confine said shank therebetween, said shank being of substantially rectangular cross section.
  • one of said shank and said pair of parallel side portions is provided with one aperture and the other is provided with two apertures so disposed that a first combination of said apertures may be pinably aligned to hold the scarifier portion in said first position and that a second combination of said apertures may be pinably aligned to hold the scarifier portion in said second position.
  • step of moving comprises making a plurality of substantially parallel ripping passes.
  • step of moving the scarifier to its second position comprises the steps of sliding the scarifier attachment upwardly with respect to the bucket, and affixing it to the bucket in said second position so as to effectively store the scarifier in said second position during periods of nonuse.

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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)

Abstract

A two-piece multiposition ripper attachment for a back hoe is disclosed. In a first position, the attachment is stored out of the way so as to not interfere with normal use of the back hoe. In a second position, the attachment and method is exposed so that the back hoe may be used as a ripper in one orientation and may be used to perform its normal functions in a second orientation.

Description

1 United States Patent [56] References Cited UNITED STATES PATENTS 2.840.931 7/1958 Appel 37/117.5 2,969,966 H1961 Matheis 299/26 3,097,439 7/1963 Calkin 37/117.5 3,403,940 10/1968 Clark 299/26 3,430,703 3/1969 Richey 37/117.5
Primary Examiner-Ernest R. Purser A!t0mey.1effers and Rickert AhSTRACT: A two-piece multiposition ripper attachment for a back hoe is disclosed. In a first position, the attachment is stored out of the way so as to not interfere with normal use of the back hoe. In a second position, the attachment and method is exposed so that the back hoe may be used as a ripper in one orientation and may be used to perform its normal functions in a second orientation.
PATENTEI] AUG 3 IHII llVl/E/I/TOR.
JACK D. CARTER ATTORNEYS METHOD AND APPARATUS FOR USING A BACK HOE BUCKET AS A FROZEN GROUND RIPPER This invention relates to attachments for movable buckets and more specifically to a ripper attachment for a back hoe bucket. The prior procedures for breaking up frozen ground, asphalt or other similar surfaces has been to use a large cableoperated machine and merely drop the bucket so as to break through the hard surface. This is obviously hard on the machine. There are also special purpose machines designed for this ripping process. Small machines equipped with a back hoe bucket are generally incapable of coping with this problem.
Accordingly, it is one object of the present invention to provide an attachment for a back hoe bucket which attachment may be used to rip or tear through a crustaceous surface such as frozen ground or asphalt.
It is another object of the present invention to provide a ripping attachment which does not interfere with the normal use-of the back hoe bucket.
The present invention contemplates a two-piece ripper attachment for a back hoe bucket. When the attachment is in one position, the back hoe may be used to perform its normal scooping operations in one orientation and may be used as a ripper in a second orientation. When the attachment is in another position it is stored out of the way so as to not interfere with any of the normal uses of the back hoe bucket.
Accordingly, it is another object of the present invention to provide a retractable ripper attachment for a bucket.
When the attachment is in its ripping orientation the bucket serves as a guide so as to not allow the ripper to dig too deeply and thus become hung up or stuck.
It is a further object of the present invention to provide a ripper attachment which is economical to manufacture and easy to install.
These and other objects and advantages of the present invention will become more readily apparent from the subsequent disclosure read in conjunction with the accompanying drawing in which like parts are indicated by like numerals:
FIG. I shows the ripper attachment in its retracted position on a back hoe bucket;
FIG. 2 shows the ripper attachment in its operating position on a back hoe bucket;
FIG. 3 is an end view taken along the line 3-3 of FIG. I; and
FIG. 4 is a sectional view taken along the line 4-4 of FIG. 2.
Referring now to FIG. 1, a bucket or scoop I is shown with the ripper attachment in place. The front end 2 of the bucket is used to scoop material. The rear end of the bucket has a rearwardly projecting portion 4 provided with one or more holes 5. These holes are normally provided on the bucket to allow variations in the point of attachment of the two levers 3 and 6 for specialized digging operations. Thus, the particular back hoe bucket illustrated in FIG. 1 might occasionally be used with the lever 6 attached by means of a pin through the hole 5 rather than through the hole 7. As a general rule this hole 5 is not used for lever attachment and is thus available to attach the novel ripper of the present invention. Of course, the orientation ofthe bucket l is controlled during use by the relative orientation of the levers 3 and 6. These levers may be hydraulically operated.
As shown in FIG. I applicant's attachment is seen to consist ofa bracket portion 8 provided with a plurality of apertures or holes at the points 5, 9 and 10. The aperture at 5 allows the bracket to be attached by means of a pin through the corresponding holes in the rearwardly projecting portion of the bucket. The attachment further consists of a scarifier portion 11 shown as a vertically extending shank and a bit or tooth 12 attached to the lower end of the shank. In a preferred embodiment, this shank is of rectangular cross section and is provided with at least one hole so that the shank may be attached to the bracket portion by mean of a pin generally indicated at 9 in FIG. 1. Either the bracket or the shank or both are provided with a plurality of holes so that the pin at 9 may be removed and the shank portion lowered to its operational position as is shown in FIG. 2. In the particular embodiment illustrated in FIGS. 1 and 2, the shank portion has one or any number of holes and the bracket portion has one or any number of holes to allow for this adjustment.
The specific structure of a preferred embodiment of the present invention is most readily seen in reference to FIG. 3 which shows a bucket I having a bracket portion 8 attached to the rearwardly projecting portion of the bucket by means of a pin I3 which pin is held securely in place by the retaining ring 14. This pin is seen in FIG. 1 as extending through the hole at 5 which hole passes through both the bracket and the rearwardly projecting portion of the bucket. The shank portion 11 of the scarifier is attached to the bracket portion 8 by means of a removable pin 15 which passes through aligned holes in the bracket and the shank portion. This pin is held in place by a retainer 16.
Turning now to FIG. 4 the rearwardly projecting portion of the bucket is seen to consist of two parallel pieces I7 and 18 and the pin 13 is seen to pass through a hole in 17, a hole in the bracket portion 8, and then a hole in 18 and to be held in position by the retaining ring 14. The shank ll of the scarifier portion is seen to be attached to the bracket portion by the removable pin l5 which passes simultaneously through a first side of the bracket 19 through the shank 11 and subsequently through the other side of the bracket at 20. This pin 15 is held in position by an easily removable retainer 16. The shank is further held in position by a backing plate 21 on the bracket 8. For additional strength, gussets or braces 22 may be welded to the sides 19 and 20 so as to more securely hold them to the body of the bracket 8.
In light of the above structural disclosure, the installation and operation of the attachment may now be easily followed. The present device would typically be used as an attachment to the back hoe bucket of a tractorlike vehicle. Such buckets typically have several holes which serve as points of attachment for the mechanical linkage which operates the bucket. There are normally more holes than necessary for operating the bucket. The present attachment is fastened by a casehardened pin to one of these extra holes such as illustrated at 5 in FIG. 1. The scarifier portion of the attachment is then slidably mounted within the bracket portion 8 by means of a second pin. The bracket and scarifier are provided with several holes so that this second pin may be inserted so as to hold the entire attachment out of the way during extended periods of normal bucket use or may be held in a lower position for use of the attachment.
The advantages of this device should now also be clear. The device is easy to install and no special tools or modifications of the bucket are necessary. The device need not be removed in the summertime but can be left on the bucket in its up or stored position. The device cannot hang up by going too deep. By this, I mean, the bucket serves as a guide or depth gauge, thus the bucket of FIG. 2 will disrupt or loosen frozen ground to a depth limited by the bottom of the bucket contacting the surface of the ground. If the bucket of FIG. 2 is rotated slightly clockwise, it will tear at a lesser depth. As the bucket is rotated counterclockwise, it will dig at a deeper and deeper depth until it reaches a point where the tooth or bit 12 is an gled relative to the earth in such a way as to force the entire attachment back out of the ground. Thus, the attachment kicks itself out when digging too deeply. The angle of inclination of the tooth 12 relative to the shank 11 may of course be varied from that shown in the drawing.
Several other modifications will immediately suggest themselves to those skilled in this art, thus, the tooth or bit on the end of the scarifier may be made to be replaceable on the end of the shank portion so that the entire shank and bit need not be replaced when the bit is worn out. Similarly, this tooth may be made pointed, that is, to have a triangular horizontal cross section rather than rectangular as shown in FIG. 3. These and other modifications will readily suggest themselves to those of ordinary skill in the art and accordingly the invention is to be limited only by the scope of the following claims.
l claim:
1. An attachment for use in conjunction with a movable bucket or the like, the front end of said bucket being adapted to be used to scoop material, the rear end of said bucket having at least'one rearwardly projecting portion provided with at least one transverse aperture, said rear end of said bucket adapted to receive said attachment, said attachment comprismg:
a bracket portion provided with a plurality of apertures, a first of said apertures being adapted to removably attach said bracket portion to said rearwardly projecting portion;
a scarifier portion comprising a shank and a bit, said shank being elongated, said bit attached to said shank in the proximity of one end of said shank, said shank being provided with at least one aperture;
a pin adapted to pass simultaneously through another of said apertures in said bracket portion and an aperture in said shank portion to hold said scarifier portion in a first position with respect to said bracket portion, said pin being adapted to be removed and reinserted to align a second pair of apertures so as to hold said scarifier portion and said bracket portion in a second relative position.
2. The attachment of claim 1 wherein the bracket portion comprises a pair of separated parallel side portions and an attaching portion, said side portions adapted to confine said shank therebetween, said shank being of substantially rectangular cross section.
3. The attachment of claim 2 wherein said attaching portion is adapted to be attached to said rearwardly projecting portion of said bucket by a transversely disposed pin.
4. The attachment of claim 2 wherein one of said shank and said pair of parallel side portions is provided with one aperture and the other is provided with two apertures so disposed that a first combination of said apertures may be pinably aligned to hold the scarifier portion in said first position and that a second combination of said apertures may be pinably aligned to hold the scarifier portion in said second position.
5. The method of using a back hoe to break up and move a.
horizontally disposed crustaceous material comprising the steps of;
attaching to the back hoe bucket in a first position a scarifi er; revolving the bucket to a first orientation wherein the scarifier is exposed below the lower edge of the bucket; moving the bucket and attached scarifier horizontally so as to rip the material; revolving the bucket to a second orientation so that the scarifier is obscured behind the bucket; scooping up the thus loosened material into the bucket for removal and;
moving the scarifier attachment to a second position'for storage during periods of nonuse.
6. The method of claim 5 wherein the step of moving comprises making a plurality of substantially parallel ripping passes.
7. The method of claim 6 wherein said plurality is three.
8. The method of claim 5 wherein the step of moving the scarifier to its second position comprises the steps of sliding the scarifier attachment upwardly with respect to the bucket, and affixing it to the bucket in said second position so as to effectively store the scarifier in said second position during periods of nonuse.

Claims (8)

1. An attachment for use in conjunction with a movable bucket or the like, the front end of said bucket being adapted to be used to scoop material, the rear end of said bucket having at least one rearwardly projecting portion provided with at least one transverse aperture, said rear end of said bucket adapted to receive said attachment, said attachment comprising: a bracket portion provided with a plurality of apertures, a first of said apertures being adapted to removably attach said bracket portion to said rearwardly projecting portion; a scarifier portion comprising a shank and a bit, said shank being elongated, said bit attached to said shank in the proximity of one end of said shank, said shank being provided with at least one aperture; a pin adapted to pass simultaneously through another of said apertures in said bracket portion and an aperture in said shank portion to hold said scarifier portion in a first position with respect to said bracket portion, said pin being adapted to be removed and reinserted to align a second pair of apertures so as to hold said scarifier portion and said bracket portion in a second relative position.
2. The attachment of claim 1 wherein the bracket portion comprises a pair of separated parallel side portions and an attaching portion, said side portions adapted to confine said shank therebetween, said shank being of substantially rectangular cross section.
3. The attachment of claim 2 wherein said attaching portion is adapted to be attached to said rearwardly projecting portion of said bucket by a transversely disposed pin.
4. The attachment of claim 2 wherein one of said shank and said pair of parallel side portions is provided with one aperture and the other is provided with two apertures so disposed that a first combination of said apertures may be pinably aligned to hold the scarifier portion in said first position and that a second combination of said apertures may be pinably aligned to hold the scarifier portion in said second position.
5. The method of using a back hoe to break up and move a horizontally disposed crustaceous material comprising the steps of; attaching to the back hoe bucket in a first position a scarifier; revolving the bucket to a first orientation wherein the scarifier is exposed below the lower edge of the bucket; moving the bucket and attached scarifier horizontally so as to rip the material; revolving the bucket to a second orientation so that the scarifier is obscured behind the bucket; scooping up the thus loosened materIal into the bucket for removal and; moving the scarifier attachment to a second position for storage during periods of nonuse.
6. The method of claim 5 wherein the step of moving comprises making a plurality of substantially parallel ripping passes.
7. The method of claim 6 wherein said plurality is three.
8. The method of claim 5 wherein the step of moving the scarifier to its second position comprises the steps of sliding the scarifier attachment upwardly with respect to the bucket, and affixing it to the bucket in said second position so as to effectively store the scarifier in said second position during periods of nonuse.
US825162A 1969-05-16 1969-05-16 Method and apparatus for using a back hoe bucket as a frozen ground ripper Expired - Lifetime US3596996A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514070A1 (en) * 1974-04-17 1975-11-06 Caterpillar Tractor Co BACKHOE BUCKET
US3997068A (en) * 1975-06-19 1976-12-14 Ingersoll-Rand Company, Limited Assembly for attachment to excavators
US4038766A (en) * 1975-12-23 1977-08-02 Felstet Rickerd M Excavator bucket ripper tool
US4087010A (en) * 1977-01-31 1978-05-02 Stormon Harry J Apparatus for mounting a hand-held paving breaker on backhoe attachments
US4204348A (en) * 1978-10-10 1980-05-27 Lydie Phillip E C Ripper attachment for earth-working equipment
US4329794A (en) * 1980-03-24 1982-05-18 Dresser Industries, Inc. Ripping attachment for dragline
JPS58103249U (en) * 1981-12-29 1983-07-13 古川　正一 Installation deep ripper
US4495717A (en) * 1982-12-30 1985-01-29 Michael Lockwood Combination spacer and lifting device for backhoe machinery
US4561199A (en) * 1982-12-30 1985-12-31 Lockwood Michael W Combination spacer and lifting device for machinery incorporating a bucket
US5115583A (en) * 1991-07-01 1992-05-26 Vail Donald E Auxiliary ripper tooth for backhoe
US5197212A (en) * 1991-07-01 1993-03-30 Vail Donald E Auxiliary ripper tooth attachment for use in conjunction with a backhoe
US5394629A (en) * 1993-06-21 1995-03-07 Gh Hensley Industries, Inc. Side-locking flex pin connector for excavation apparatus
US6035948A (en) * 1999-01-15 2000-03-14 Griffin; Walter J. Apparatus for mounting a hand-held pavement breaker on a backhoe bucket
US6308440B1 (en) 2001-05-30 2001-10-30 Marvin A. Mueller Excavation attachment for powered loader
US6311417B1 (en) * 2000-01-11 2001-11-06 Rockland, Inc. Excavator bucket assembly
US6434863B1 (en) * 2001-12-03 2002-08-20 Robert Meurer Excavator bucket with retractable scarifier
US6546650B1 (en) * 2001-12-03 2003-04-15 Robert Meurer Excavator bucket with retractable scarifier
US6671984B2 (en) * 2002-03-06 2004-01-06 David S. Larson Ripper attachment for an excavation device
US6729051B1 (en) * 2002-01-09 2004-05-04 Apac Inc. Front end loader retractable attachment
US6764139B1 (en) * 2001-01-01 2004-07-20 Robert F. Wortman System for and method of demolition
US20090199440A1 (en) * 2008-02-08 2009-08-13 Galbreath Guy Randall Soil fracturing tool
US10024029B1 (en) * 2017-06-28 2018-07-17 Jaime Ruiz Demolition system
US20210324646A1 (en) * 2018-12-26 2021-10-21 Crystal Lagoons Technologies, Inc. Urban transformation and construction method for creating a public access tropical style swimming lagoon with beaches within vacant or abandoned sites
US11512455B2 (en) * 2020-03-10 2022-11-29 Walter Prather, JR. Bucket claw system

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US2840931A (en) * 1957-01-04 1958-07-01 Andrew L Appel Scarifier attachment for tractor mounted shovel loaders
US2969966A (en) * 1957-07-23 1961-01-31 Aloys J Matheis Bucket mounted frost breaker
US3097439A (en) * 1962-01-12 1963-07-16 Calkin Fenton Scarifier attachment
US3403940A (en) * 1966-12-09 1968-10-01 Harry C. Clark Saw attachment for excavator bucket
US3430703A (en) * 1967-03-20 1969-03-04 Massey Ferguson Inc Scarifying and scraping implement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840931A (en) * 1957-01-04 1958-07-01 Andrew L Appel Scarifier attachment for tractor mounted shovel loaders
US2969966A (en) * 1957-07-23 1961-01-31 Aloys J Matheis Bucket mounted frost breaker
US3097439A (en) * 1962-01-12 1963-07-16 Calkin Fenton Scarifier attachment
US3403940A (en) * 1966-12-09 1968-10-01 Harry C. Clark Saw attachment for excavator bucket
US3430703A (en) * 1967-03-20 1969-03-04 Massey Ferguson Inc Scarifying and scraping implement

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514070A1 (en) * 1974-04-17 1975-11-06 Caterpillar Tractor Co BACKHOE BUCKET
US4041624A (en) * 1974-04-17 1977-08-16 Caterpillar Tractor Co. Integral rippers for hydraulic excavator bucket
US3997068A (en) * 1975-06-19 1976-12-14 Ingersoll-Rand Company, Limited Assembly for attachment to excavators
US4038766A (en) * 1975-12-23 1977-08-02 Felstet Rickerd M Excavator bucket ripper tool
US4087010A (en) * 1977-01-31 1978-05-02 Stormon Harry J Apparatus for mounting a hand-held paving breaker on backhoe attachments
US4204348A (en) * 1978-10-10 1980-05-27 Lydie Phillip E C Ripper attachment for earth-working equipment
US4329794A (en) * 1980-03-24 1982-05-18 Dresser Industries, Inc. Ripping attachment for dragline
JPS58103249U (en) * 1981-12-29 1983-07-13 古川　正一 Installation deep ripper
US4495717A (en) * 1982-12-30 1985-01-29 Michael Lockwood Combination spacer and lifting device for backhoe machinery
US4561199A (en) * 1982-12-30 1985-12-31 Lockwood Michael W Combination spacer and lifting device for machinery incorporating a bucket
US5115583A (en) * 1991-07-01 1992-05-26 Vail Donald E Auxiliary ripper tooth for backhoe
US5197212A (en) * 1991-07-01 1993-03-30 Vail Donald E Auxiliary ripper tooth attachment for use in conjunction with a backhoe
US5394629A (en) * 1993-06-21 1995-03-07 Gh Hensley Industries, Inc. Side-locking flex pin connector for excavation apparatus
US6035948A (en) * 1999-01-15 2000-03-14 Griffin; Walter J. Apparatus for mounting a hand-held pavement breaker on a backhoe bucket
US6311417B1 (en) * 2000-01-11 2001-11-06 Rockland, Inc. Excavator bucket assembly
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