US3670825A - Power angling bulldozer - Google Patents
Power angling bulldozer Download PDFInfo
- Publication number
- US3670825A US3670825A US865023A US3670825DA US3670825A US 3670825 A US3670825 A US 3670825A US 865023 A US865023 A US 865023A US 3670825D A US3670825D A US 3670825DA US 3670825 A US3670825 A US 3670825A
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- United States
- Prior art keywords
- implement
- blade
- support
- links
- frame
- 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.)
- Expired - Lifetime
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Classifications
-
- 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
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7622—Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers
- E02F3/7627—Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers with the scraper blade adjustable relative to the frame about a vertical axis
Definitions
- a power angling bulldozer comprises a blade operatively connected to the forward end of a C-frame by spaced links arranged to diverge toward each other forwardly of the frame.
- a pair of double-acting hydraulic cylinders are pivotally connected between the frame and blade to selectively impart angling movements to the blade for earth-moving purposes.
- the links are constructed and arranged so that the blade will completely cover and protect the frame during all such movements.
- a third double-acting hydraulic cylinder may be operatively associated with the blade to selectively impart tilting movements thereto.
- An object of this invention is to provide an efiicient and economical linkage means, exhibiting a high degree of structural integrity and simplicity, for pivotally connecting an angling implement to a support therefor.
- Such linkage means is particularly adapted to overcome the above, briefly described problems by connecting the blade and C-frame of a bulldozer together to permit them to remain intact during transportation and yet permit the blade to fully protect the C-frame during all phases of operation thereof.
- such linkage comprises a pair of links positioned to converge toward the implement.
- FIG. I is a partial, top elevational view of a bulldozer embodying the linkage means of this invention therein for pivotally connecting the blade assembly to a forward end of a C-frame thereof;
- FIG. 2 is a view taken in the direction of arrows II-Il in FIG. 1;
- FIG. 3 is a cross-sectional view taken in the direction rows llI-Ill in FIG. 1;
- FIG. 4 is a view similar to FIG. 1, but schematically illustrating various angling dispositions of the blade relative to the attached C-frame.
- the bulldozerillustrated in FIG. 1 is symetrically disposed on a central longitudinal axis X (FIG. 4) thereof.
- the bulldozer comprises a support ofC-frame having a blade assembly ll pivotally connected to a forward end portion thereof by linkage means, shown in the form of spaced links 12 and 13.
- the C-frame is adapted to have the free ends of its parallel side arms pivotally attached by universal connections to a tractor (not shown) in a conventional manner for earthmoving purposes.
- ar- Standard double-acting hydraulic cylinders 14 and 15 are preferably pivotally connected in diverging relationship between the C-frame and blade assembly and have the linkage means disposed therebetween.
- the cylinders are adapted to be incorporated into a conventional control circuit (not shown) to be alternately extended and retracted for angling the blade.
- Various blade angling positions are schematically illustrated in FIG. 4.
- a blade 16 of the blade assembly has a stub shaft 17 secured to the backside thereof (FIG. 3) to be disposed on the central longitudinal axis of the bulldozer.
- the stub shaft is journaled for rotation in a U-shaped member 18 having upper and lower parallel flanges l9 and 20, respectively.
- a double-acting hydraulic cylinder 21 (FIGS. 1 and 2) has its head end pivotally mounted to an upstanding bracket secured to blade 16 by a pin 22.
- the cylinders rod end is pivotally mounted on an upstanding lug 23, secured to flange 19, by a pin 24.
- the outer ends of member 18 are preferably arcuate and are overlapped by positioning plates 25 and 26 secured to blade 16. Such an overlapping relationship provides a bearing support to aid in counteracting undue loads which may be imposed on the blade and stub shaft 17 during vehicle operation.
- cylinder 21 will function to tilt blade 16 relative to bracket 18 and about stub shaft 17.
- the cylinder may be suitably incorporated into the above-mentioned hydraulic control circuit which may further include cylinders 14 and 15. It should be further understood that other types of earth-moving implements, such as a loader bucket, may be utilized in lieu of blade assembly 11.
- the degree of angling movements imparted to the blade assembly by cylinders or actuating means-14 and I5 is controlled by links 12 and 13, pivotally connected between the frame and blade assembly by pivot pins 27-28 and 29-30, respectively (FIG. 1).
- pins 28 and 30 extend through forward end portions of the links and are each pivotally connected between spaced flanges l9 and 20 of member 18.
- the rear end portions of the links are preferably bifurcated to increase the structural integrity of the integrated assembly and to continuously maintain member 18 in an erect position relative to the C-frame.
- the maximum included angle a through which the blade or other suitable earth-working implement may be angled would be dictated by the particular earth-working application.
- an angle a approximating 50 (the blade angle equalling 25) was adequate for efficiently performing the earth-moving operations in question.
- Links 12 and 13 preferably diverge toward blade 16 and normally form a trapezoid along with imaginary lines between pivot pins 27-29 and 28-30, when the blade is maintained in its normal erect position perpendicular to longitudinal axis X of the bulldozer.
- the included angle b between the links, angle c depicting the angle through which each link is moved, the distances between pivot pins 27 and 29 and 28 and 30, the lengths of the links and related design parameters would be considered together for any particular design application.
- the design parameters are such so as to continuously maintain the blade close to the C- frame and to assure that the maximum angled length of the blade does not exceed the width of the C-frame.
- the latter desiderata assures that the C-frame, having a width closely approximating 8 feet, for example, will be fully protected during all of the blades angled positions.
- pivot pins 27 and 29 are suitable spaced from each other to enable the links to perform their desired functions, but are not positioned too far apart to interfere with the angling movements of cylinders 14 and 15.
- the cylinders are kept as close togetheras possible to enable them to fit into the prescribed space, but yet far enough apart to prevent excessive forces from damaging the cylinders, lines and related structures.
- each link 12 and 13 was further found desirable to maintain each link 12 and 13 at a length approximating one-half the distance between the pivot pins 27 and 29.
- Such an arrangement was found to provide maximum flexibility in obtaining the desired blade angle and lateral movement for the design under consideration.
- the preferred length of each link approximates twelve inches, whereas the included angle b between the links approximates 60.
- a larger angle will tend to reduce the degree of lateral movement afforded to the blade during angling whereas a smaller angle will tend to reduce angling angle a.
- the links have an instantaneous point of intersection P (FIG. 4) which comprises an imaginary pivot point for angling the blade.
- P point of intersection
- an angling apparatus comprising an implement attached to a support normally disposed at least generally horizontally and adapted to be attached to a vehicle and means pivotally interconnecting said implement and said support for angling said implement relative to said support
- the invention comprising linkage means, consisting of a pair of links normally disposed at least generally in the same horizontal plane and positioned to converge toward said implement from said support, pivotally connecting said implement to a forward end of said support for permitting said implement to pivot solely about an infinitely variable pivot axis disposed forwardly of said linkage means and means for maintaining said implement in a selected pivoted position.
- the means for maintaining said implement in a selected pivoted position comprises at least one actuating means operatively connected between said blade assembly and a forward portion of said C-frame for selectively angling said blade assembly relative to said C- frame.
- said actuating means comprises at least one hydraulic cylinder pivotally connected between said C-frame and said blade assembly.
- said blade assembly comprises a member pivotally connected to said linkage means and said cylinder and a blade pivotally and tiltably mounted to said member and further comprising means operatively connected between said blade and member for selectively tilting said blade relative to said member.
- An angling apparatus comprising a support disposed at least generally horizontally on a central longitudinal axis thereof and adapted to be pivotally attached to a vehicle, an implement positioned forwardly of said support and normally disposed at least generally horizontally and transversely relative to said axis, actuating means pivotally interconnecting said implement and said support for selectively angling said implement relative to said support and for maintaining said implement in a selected angled position, and a pair of links at least generally disposed in the same horizontal plane and pivotally connecting said implement to said support and positioned to converge toward said implement from said support for pemiitting said implement to pivot solely about an infinitely variable pivot axis disposed forwardly of said links.
- said blade assembly comprises a member pivotally connected to said links and a blade pivotally and tiltably mounted to said member for tilting movements about said axis and further comprising means operatively connected between said blade and member for selectively tilting said blade relative to said 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)
- Agricultural Machines (AREA)
- Operation Control Of Excavators (AREA)
- Body Structure For Vehicles (AREA)
Abstract
A power angling bulldozer comprises a blade operatively connected to the forward end of a C-frame by spaced links arranged to diverge toward each other forwardly of the frame. A pair of double-acting hydraulic cylinders are pivotally connected between the frame and blade to selectively impart angling movements to the blade for earth-moving purposes. The links are constructed and arranged so that the blade will completely cover and protect the frame during all such movements. A third doubleacting hydraulic cylinder may be operatively associated with the blade to selectively impart tilting movements thereto.
Description
United States Patent Asal et al.
[451 June 20, 1972 [54] POWER ANGLING BULLDOZER [72] Inventors: Jerrold R. Asal, Joliet; Donald A. Plepho,
Aurora, both of III. 1
[73] Assignee: Caterpillar Tractor Co., Peoria, 111.
[22] Filed: Oct. 9, 1969 [211 App]. No.: 865,023
[52] US. Cl. ..172/805, 172/663, 172/742, 37/42 [51] Int. Cl. ..E02f 3/76, A01b 65/00, AOlb 35/22 [58] Field of Search 172/805, 806, 807, 276, 801 172/803, 804, 802, 741, 742, 667, 763, 663; 37/41, 40; 280/456, 460, 467
[56] References Cited UNITED STATES PATENTS 2,001,803 5/1935 Stephens 172/809 2,100,445 1 1/1937 Bleu ..172/807 2,374,016 4/1945 l-lenneuse. ..172/807 2,734,292 2/1956 Graves ..172/804 2,816,772 12/1957 La Pointe ..37/41 X 2,950,550 8/1960 French 172/804 FOREIGN PATENTS OR APPLICATIONS 818,632 8/1959 Great Britain 1 72/2 76 Primary Examiner-Robert E. Pulfrey Assistant Examiner-Stephen C. Pellegrino AttorneyFryer, Tjensvold, Felix, Phillips & Lempio [57] ABSTRACT A power angling bulldozer comprises a blade operatively connected to the forward end of a C-frame by spaced links arranged to diverge toward each other forwardly of the frame. A pair of double-acting hydraulic cylinders are pivotally connected between the frame and blade to selectively impart angling movements to the blade for earth-moving purposes. The links are constructed and arranged so that the blade will completely cover and protect the frame during all such movements. A third double-acting hydraulic cylinder may be operatively associated with the blade to selectively impart tilting movements thereto.
13 Claims, 4 Drawing Figures PATENTEnJum I972 I 8, 670. 825
INVENTORS JERROLD R. ASAL. DONALD A. PIEPHO BY g I f .4! .M ,L
g 05 ATTORNEYS P'A'T'ENTEnJuxzo m2 3, 570, 82 5 SHEET 2 OF 3 INVENTORS JERROLD R. ASAL DONALD A. PIEPHO vP'A'TENTEIJJUM2o 1972 3, s70 825 SHEET 3 OF 3 FNVENTORS JERROLD R. ASAL DONALD A. PIEPHO I BY WW ATTORNEYS POWER ANGLING BULLDOZER It is desirable to completely cover and protect the forward end of the C-frame of a bulldozer during all phases of an earthmoving operation. Conventional blades normally comprise a length substantially greater than the width of the C- frame and attached tractor to provide such protection. However, due to various regulations regarding the transport of the tractor-type bulldozer, the tractor and blade must be shipped separately and then operatively connected together once they reach their destination. For example, certain regulations specify a maximum width of 8 feet for certain equipment which is transported by flatbed truck, thus precluding the intact shipment of many conventional bulldozers in the absence of a special permit and/or routing.
An object of this invention is to provide an efiicient and economical linkage means, exhibiting a high degree of structural integrity and simplicity, for pivotally connecting an angling implement to a support therefor. Such linkage means is particularly adapted to overcome the above, briefly described problems by connecting the blade and C-frame of a bulldozer together to permit them to remain intact during transportation and yet permit the blade to fully protect the C-frame during all phases of operation thereof. In the hereinafter described preferred embodiment of this invention, such linkage comprises a pair of links positioned to converge toward the implement.
Other objects of this invention will become apparent from the following description and accompanying drawings wherein:
FIG. I is a partial, top elevational view of a bulldozer embodying the linkage means of this invention therein for pivotally connecting the blade assembly to a forward end of a C-frame thereof;
FIG. 2 is a view taken in the direction of arrows II-Il in FIG. 1;
FIG. 3 is a cross-sectional view taken in the direction rows llI-Ill in FIG. 1; and
FIG. 4 is a view similar to FIG. 1, but schematically illustrating various angling dispositions of the blade relative to the attached C-frame.
The bulldozerillustrated in FIG. 1 is symetrically disposed on a central longitudinal axis X (FIG. 4) thereof. The bulldozer comprises a support ofC-frame having a blade assembly ll pivotally connected to a forward end portion thereof by linkage means, shown in the form of spaced links 12 and 13. The C-frame is adapted to have the free ends of its parallel side arms pivotally attached by universal connections to a tractor (not shown) in a conventional manner for earthmoving purposes.
of ar- Standard double-acting hydraulic cylinders 14 and 15 are preferably pivotally connected in diverging relationship between the C-frame and blade assembly and have the linkage means disposed therebetween. The cylinders are adapted to be incorporated into a conventional control circuit (not shown) to be alternately extended and retracted for angling the blade. Various blade angling positions are schematically illustrated in FIG. 4.
A blade 16 of the blade assembly has a stub shaft 17 secured to the backside thereof (FIG. 3) to be disposed on the central longitudinal axis of the bulldozer. The stub shaft is journaled for rotation in a U-shaped member 18 having upper and lower parallel flanges l9 and 20, respectively. A double-acting hydraulic cylinder 21 (FIGS. 1 and 2) has its head end pivotally mounted to an upstanding bracket secured to blade 16 by a pin 22.
The cylinders rod end is pivotally mounted on an upstanding lug 23, secured to flange 19, by a pin 24. The outer ends of member 18 are preferably arcuate and are overlapped by positioning plates 25 and 26 secured to blade 16. Such an overlapping relationship provides a bearing support to aid in counteracting undue loads which may be imposed on the blade and stub shaft 17 during vehicle operation.
It can be seen that selective extension and retraction of cylinder 21 will function to tilt blade 16 relative to bracket 18 and about stub shaft 17. The cylinder may be suitably incorporated into the above-mentioned hydraulic control circuit which may further include cylinders 14 and 15. It should be further understood that other types of earth-moving implements, such as a loader bucket, may be utilized in lieu of blade assembly 11.
The degree of angling movements imparted to the blade assembly by cylinders or actuating means-14 and I5 is controlled by links 12 and 13, pivotally connected between the frame and blade assembly by pivot pins 27-28 and 29-30, respectively (FIG. 1). As shown in FIG. 2, pins 28 and 30 extend through forward end portions of the links and are each pivotally connected between spaced flanges l9 and 20 of member 18. The rear end portions of the links are preferably bifurcated to increase the structural integrity of the integrated assembly and to continuously maintain member 18 in an erect position relative to the C-frame.
Referring to FIG. 4, the maximum included angle a through which the blade or other suitable earth-working implement may be angled would be dictated by the particular earth-working application. In one commercial bulldozer embodiment of this invention it was found that an angle a approximating 50 (the blade angle equalling 25) was adequate for efficiently performing the earth-moving operations in question. Links 12 and 13 preferably diverge toward blade 16 and normally form a trapezoid along with imaginary lines between pivot pins 27-29 and 28-30, when the blade is maintained in its normal erect position perpendicular to longitudinal axis X of the bulldozer.
The included angle b between the links, angle c depicting the angle through which each link is moved, the distances between pivot pins 27 and 29 and 28 and 30, the lengths of the links and related design parameters would be considered together for any particular design application. In the bulldozer application under consideration, the design parameters are such so as to continuously maintain the blade close to the C- frame and to assure that the maximum angled length of the blade does not exceed the width of the C-frame. The latter desiderata assures that the C-frame, having a width closely approximating 8 feet, for example, will be fully protected during all of the blades angled positions. ln-addition, pivot pins 27 and 29 are suitable spaced from each other to enable the links to perform their desired functions, but are not positioned too far apart to interfere with the angling movements of cylinders 14 and 15. The cylinders are kept as close togetheras possible to enable them to fit into the prescribed space, but yet far enough apart to prevent excessive forces from damaging the cylinders, lines and related structures.
In the illustrated embodiment it was further found desirable to maintain each link 12 and 13 at a length approximating one-half the distance between the pivot pins 27 and 29. Such an arrangement was found to provide maximum flexibility in obtaining the desired blade angle and lateral movement for the design under consideration. In such design, the preferred length of each link approximates twelve inches, whereas the included angle b between the links approximates 60. A larger angle will tend to reduce the degree of lateral movement afforded to the blade during angling whereas a smaller angle will tend to reduce angling angle a.
It should be noted that the links have an instantaneous point of intersection P (FIG. 4) which comprises an imaginary pivot point for angling the blade. When the blade is angled to its dotted line position the point moves to P. Thus it can be seen that the point moves rearwardly toward the C-frame as well as laterally outwardly when the blade is angled.
We claim:
1. In an angling apparatus comprising an implement attached to a support normally disposed at least generally horizontally and adapted to be attached to a vehicle and means pivotally interconnecting said implement and said support for angling said implement relative to said support, the invention comprising linkage means, consisting of a pair of links normally disposed at least generally in the same horizontal plane and positioned to converge toward said implement from said support, pivotally connecting said implement to a forward end of said support for permitting said implement to pivot solely about an infinitely variable pivot axis disposed forwardly of said linkage means and means for maintaining said implement in a selected pivoted position.
2. The invention of claim 1 wherein said support and implement are the C-frame and blade assembly of a bulldozer, respectively.
3. The invention of claim 2 wherein the means for maintaining said implement in a selected pivoted position comprises at least one actuating means operatively connected between said blade assembly and a forward portion of said C-frame for selectively angling said blade assembly relative to said C- frame.
4. The invention of claim 3 wherein said actuating means comprises at least one hydraulic cylinder pivotally connected between said C-frame and said blade assembly.
5. The invention of claim 4 wherein two of said cylinders are pivotally connected between said C-frame and said blade assembly, said linkage means positioned between said cylinders.
6. The invention of claim 3 wherein said blade assembly comprises a member pivotally connected to said linkage means and said cylinder and a blade pivotally and tiltably mounted to said member and further comprising means operatively connected between said blade and member for selectively tilting said blade relative to said member.
7. The invention of claim 1 wherein the included angle between said links approximates 60 calibrated at the pivot point.
8. The invention of claim 7 wherein said links are positioned approximating 50.
9. An angling apparatus comprising a support disposed at least generally horizontally on a central longitudinal axis thereof and adapted to be pivotally attached to a vehicle, an implement positioned forwardly of said support and normally disposed at least generally horizontally and transversely relative to said axis, actuating means pivotally interconnecting said implement and said support for selectively angling said implement relative to said support and for maintaining said implement in a selected angled position, and a pair of links at least generally disposed in the same horizontal plane and pivotally connecting said implement to said support and positioned to converge toward said implement from said support for pemiitting said implement to pivot solely about an infinitely variable pivot axis disposed forwardly of said links.
10. The invention of claim 9 wherein said support and implement are the C-frame and blade assembly of a bulldozer, respectively.
11. The invention of claim 10 wherein said blade assembly comprises a member pivotally connected to said links and a blade pivotally and tiltably mounted to said member for tilting movements about said axis and further comprising means operatively connected between said blade and member for selectively tilting said blade relative to said member.
12. The invention of claim 9 wherein the included angle between said links approximates 60 calibrated at the pivot point.
13. The invention of claim 12 wherein said links are positioned for permitting angling of said blade through an in cluded angle approximating 50.
Claims (13)
1. In an angling apparatus comprising an implement attached to a support normally disposed at least generally horizontally and adapted to be attached to a vehicle and means pivotally interconnecting said implement and said support for angling said implement relative to said support, the invention comprising linkage means, consisting of a pair of links normally disposed at least generally in the same horizontal plane and positioned to converge toward said implement from said support, pivotally connecting said implement to a forward end of said support for permitting said implement to pivot solely about an infinitely variable pivot axis disposed forwardly of said linkage means and means for maintaining said implement in a selected pivoted position.
2. The invention of claim 1 wherein said support and implement are the C-frame and blade assembly of a bulldozer, respectively.
3. The invention of claim 2 wherein the means for maintaining said implement in a selected pivoted position comprises at least one actuating means operatively connected between said blade assembly and a forward portion of said C-frame for selectively angling said blade assembly relative to said C-frame.
4. The invention of claim 3 wherein said actuating means comprises at least one hydraulic cylinder pivotally connected between said C-frame and said blade assembly.
5. The invention of claim 4 wherein two of said cylinders are pivotally connected between said C-frame and said blade assembly, said linkage means positioned between said cylinders.
6. The invention of claim 3 wherein said blade assembly comprises a member pivotally connected to said linkage means and said cylinder and a blade pivotally and tiltably mounted to said member and further comprising means operatively connected between said blade and member for selectively tilting said blade relative to said member.
7. The invention of claim 1 wherein the included angle between said links approximates 60* calibrated at the pivot point.
8. The invention of claim 7 wherein said links are positioned for permitting angling of said blade through an included angle approximating 50*.
9. An angling apparatus comprising a support disposed at least generally horizontally on a central longitudinal axis thereof and adapted to be pivotally attached to a vehicle, an implement positioned forwardly of said support and normally disposed at least generally horizontally and transversely relative to said axis, actuating means pivotally interconnecting said implement and said support for selectively angling said implement relative to said support and for maintaining said implement in a selected angled position, and a pair of links at least generally diSposed in the same horizontal plane and pivotally connecting said implement to said support and positioned to converge toward said implement from said support for permitting said implement to pivot solely about an infinitely variable pivot axis disposed forwardly of said links.
10. The invention of claim 9 wherein said support and implement are the C-frame and blade assembly of a bulldozer, respectively.
11. The invention of claim 10 wherein said blade assembly comprises a member pivotally connected to said links and a blade pivotally and tiltably mounted to said member for tilting movements about said axis and further comprising means operatively connected between said blade and member for selectively tilting said blade relative to said member.
12. The invention of claim 9 wherein the included angle between said links approximates 60* calibrated at the pivot point.
13. The invention of claim 12 wherein said links are positioned for permitting angling of said blade through an included angle approximating 50*.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US86502369A | 1969-10-09 | 1969-10-09 |
Publications (1)
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US3670825A true US3670825A (en) | 1972-06-20 |
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Application Number | Title | Priority Date | Filing Date |
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US865023A Expired - Lifetime US3670825A (en) | 1969-10-09 | 1969-10-09 | Power angling bulldozer |
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US (1) | US3670825A (en) |
JP (1) | JPS4919761B1 (en) |
DE (1) | DE2045555A1 (en) |
FR (1) | FR2065152A5 (en) |
GB (1) | GB1318919A (en) |
ZA (1) | ZA705989B (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3898753A (en) * | 1973-08-03 | 1975-08-12 | Roy W Kinnunen | Snow plow apparatus |
US4119157A (en) * | 1976-01-12 | 1978-10-10 | J. I. Case Company | Control for cable plows and the like |
WO1980001584A1 (en) * | 1979-01-29 | 1980-08-07 | Caterpillar Tractor Co | Angle and tilt implement assembly |
US4248311A (en) * | 1979-04-02 | 1981-02-03 | J. I. Case Company | Side shift blade arrangement |
US4281721A (en) * | 1978-12-12 | 1981-08-04 | Beales Steel Products Ltd. | Bulldozer blade mounting assembly |
US4304305A (en) * | 1979-06-22 | 1981-12-08 | Waldon, Inc. | Frame for mounting tilt and angled dozer blade to tractors |
US4306625A (en) * | 1979-05-10 | 1981-12-22 | Davis Darrel B | Blade and frame assembly for power machines |
US4337837A (en) * | 1978-10-12 | 1982-07-06 | J. I. Case Company | Mounting mechanism for angle dozer blade |
WO1982003882A1 (en) * | 1981-04-27 | 1982-11-11 | Asal Jerrold R | Implement assembly with pivot connection |
US4364439A (en) * | 1981-04-27 | 1982-12-21 | Caterpillar Tractor Co. | Implement assembly with pivot connection |
USRE31642E (en) * | 1979-01-29 | 1984-08-07 | Caterpillar Tractor Co. | Angle and tilt implement assembly |
WO1991002124A1 (en) * | 1989-05-02 | 1991-02-21 | Crossflow Pty Ltd | Tiltable earthworking tool |
AU609604B2 (en) * | 1988-05-11 | 1991-05-02 | K.T.R. Engineering Pty. Limited | Improvements in earth-working equipment |
US6109363A (en) * | 1999-05-28 | 2000-08-29 | Caterpillar S.A.R.L. | Blade assembly with angular movement capability |
EP1245740A1 (en) * | 2001-03-29 | 2002-10-02 | MACMOTER S.p.A. | Working vehicle with a work implement |
US20110067892A1 (en) * | 2008-08-04 | 2011-03-24 | Kubota Corporation | Dozer Apparatus |
US8418777B1 (en) * | 2011-12-09 | 2013-04-16 | GK Machine, Inc. | Agricultural folding scraper blade |
US20150033589A1 (en) * | 2012-03-16 | 2015-02-05 | Multihog R & D Limited | Apparatus for removing unwanted material from the ground |
US20150308060A1 (en) * | 2014-04-28 | 2015-10-29 | Robert L. Beaird, Iii | Snowplow apparatus for a motor vehicle |
US20210131059A1 (en) * | 2019-11-06 | 2021-05-06 | Tylan Thiessen | Floating earth levelling blade assembly with shoes |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4249323A (en) * | 1978-06-19 | 1981-02-10 | De Lorean Manufacturing Company | Variable wing plow blade and mounting structure therefor |
IT1193344B (en) * | 1978-12-12 | 1988-06-15 | Beales Steel Prod | ASSEMBLY ASSEMBLY OF LEVELING TOOL |
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US2100445A (en) * | 1935-04-02 | 1937-11-30 | Bleu Charles Le | Trail builder |
US2374016A (en) * | 1940-10-16 | 1945-04-17 | Richard F Henneuse | Scraper |
US2734292A (en) * | 1956-02-14 | Dozer-blade mounting | ||
US2816772A (en) * | 1955-06-07 | 1957-12-17 | Lapointe Alfred | Child's wagon with obstacle clearing guard |
GB818632A (en) * | 1954-12-30 | 1959-08-19 | Nat Res Dev | Improvements relating to mole plough connecting linkages |
US2950550A (en) * | 1959-05-26 | 1960-08-30 | Deere & Co | Bulldozer |
-
1969
- 1969-10-09 US US865023A patent/US3670825A/en not_active Expired - Lifetime
-
1970
- 1970-09-01 ZA ZA705989A patent/ZA705989B/en unknown
- 1970-09-02 GB GB4191970A patent/GB1318919A/en not_active Expired
- 1970-09-15 DE DE19702045555 patent/DE2045555A1/en active Pending
- 1970-09-28 JP JP45084150A patent/JPS4919761B1/ja active Pending
- 1970-10-07 FR FR7036273A patent/FR2065152A5/fr not_active Expired
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US2734292A (en) * | 1956-02-14 | Dozer-blade mounting | ||
US2001803A (en) * | 1933-04-12 | 1935-05-21 | Commercial Shearing | Earth handling device |
US2100445A (en) * | 1935-04-02 | 1937-11-30 | Bleu Charles Le | Trail builder |
US2374016A (en) * | 1940-10-16 | 1945-04-17 | Richard F Henneuse | Scraper |
GB818632A (en) * | 1954-12-30 | 1959-08-19 | Nat Res Dev | Improvements relating to mole plough connecting linkages |
US2816772A (en) * | 1955-06-07 | 1957-12-17 | Lapointe Alfred | Child's wagon with obstacle clearing guard |
US2950550A (en) * | 1959-05-26 | 1960-08-30 | Deere & Co | Bulldozer |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3898753A (en) * | 1973-08-03 | 1975-08-12 | Roy W Kinnunen | Snow plow apparatus |
US4119157A (en) * | 1976-01-12 | 1978-10-10 | J. I. Case Company | Control for cable plows and the like |
US4337837A (en) * | 1978-10-12 | 1982-07-06 | J. I. Case Company | Mounting mechanism for angle dozer blade |
US4281721A (en) * | 1978-12-12 | 1981-08-04 | Beales Steel Products Ltd. | Bulldozer blade mounting assembly |
USRE31642E (en) * | 1979-01-29 | 1984-08-07 | Caterpillar Tractor Co. | Angle and tilt implement assembly |
WO1980001584A1 (en) * | 1979-01-29 | 1980-08-07 | Caterpillar Tractor Co | Angle and tilt implement assembly |
US4221267A (en) * | 1979-01-29 | 1980-09-09 | Caterpillar Tractor Co. | Angle and tilt implement assembly |
US4248311A (en) * | 1979-04-02 | 1981-02-03 | J. I. Case Company | Side shift blade arrangement |
US4306625A (en) * | 1979-05-10 | 1981-12-22 | Davis Darrel B | Blade and frame assembly for power machines |
US4304305A (en) * | 1979-06-22 | 1981-12-08 | Waldon, Inc. | Frame for mounting tilt and angled dozer blade to tractors |
DE3152828A1 (en) * | 1981-04-27 | 1983-06-16 | Caterpillar Tractor Co., 61629 Peoria, Ill. | TOOL ARRANGEMENT WITH SWIVEL JOINT |
WO1982003882A1 (en) * | 1981-04-27 | 1982-11-11 | Asal Jerrold R | Implement assembly with pivot connection |
US4364439A (en) * | 1981-04-27 | 1982-12-21 | Caterpillar Tractor Co. | Implement assembly with pivot connection |
AU609604B2 (en) * | 1988-05-11 | 1991-05-02 | K.T.R. Engineering Pty. Limited | Improvements in earth-working equipment |
WO1991002124A1 (en) * | 1989-05-02 | 1991-02-21 | Crossflow Pty Ltd | Tiltable earthworking tool |
US6109363A (en) * | 1999-05-28 | 2000-08-29 | Caterpillar S.A.R.L. | Blade assembly with angular movement capability |
EP1245740A1 (en) * | 2001-03-29 | 2002-10-02 | MACMOTER S.p.A. | Working vehicle with a work implement |
US8678103B2 (en) * | 2008-08-04 | 2014-03-25 | Kubota Corporation | Dozer apparatus |
US20110067892A1 (en) * | 2008-08-04 | 2011-03-24 | Kubota Corporation | Dozer Apparatus |
US8418777B1 (en) * | 2011-12-09 | 2013-04-16 | GK Machine, Inc. | Agricultural folding scraper blade |
US20150033589A1 (en) * | 2012-03-16 | 2015-02-05 | Multihog R & D Limited | Apparatus for removing unwanted material from the ground |
US9896811B2 (en) * | 2012-03-16 | 2018-02-20 | Multihog R & D Limited | Apparatus for removing unwanted material from the ground |
US20150308060A1 (en) * | 2014-04-28 | 2015-10-29 | Robert L. Beaird, Iii | Snowplow apparatus for a motor vehicle |
US9765492B2 (en) * | 2014-04-28 | 2017-09-19 | Robert L. Beaird, Iii | Snowplow apparatus for a motor vehicle |
US20210131059A1 (en) * | 2019-11-06 | 2021-05-06 | Tylan Thiessen | Floating earth levelling blade assembly with shoes |
US11913191B2 (en) * | 2019-11-06 | 2024-02-27 | 2376016 Alberta Inc. | Floating earth levelling blade assembly with shoes |
Also Published As
Publication number | Publication date |
---|---|
GB1318919A (en) | 1973-05-31 |
FR2065152A5 (en) | 1971-07-23 |
JPS4919761B1 (en) | 1974-05-20 |
DE2045555A1 (en) | 1971-04-15 |
ZA705989B (en) | 1971-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905 Effective date: 19860515 Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905 Effective date: 19860515 |