Scraper Supports Narrow Depending Tool Patents (Class 172/777)
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Patent number: 11767655Abstract: A cutting assembly for mounting cutting tips on a mouldboard of a motor grader has a cutter body including a forward mounting face for mounting along a rear face of the mouldboard simultaneously with a continuous blade body supported along the front face of the mouldboard. A row of sockets in the cutter body are arranged to support cutting tips respectively therein. The cutter body is configured to support the cutting tips on the mouldboard such that (i) the cutting tips are raised relative to the lower blade edge of the blade body in a normal working position of the mouldboard, and (ii) the cutting tips protrude below the lower blade edge of the blade body in a cutting position of the mouldboard in which the lower blade edge of the blade body is tilted about the tilt axis upwardly and forwardly in relation to the normal working position.Type: GrantFiled: August 18, 2020Date of Patent: September 26, 2023Inventor: Chad Killniak
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Patent number: 11492776Abstract: The excavator bucket with retractable teeth is a mechanical structure. The excavator bucket with retractable teeth forms the working element of an excavator. The excavator bucket with retractable teeth comprises an excavator bucket and a hydraulic structure. The hydraulic structure installs in the excavator bucket. The excavator bucket is a pan used to receive and transport soil removed from the ground. The hydraulic structure is a toothed structure used to break up the ground before excavating the soil into the excavator bucket. The hydraulic structure moves between a deployed position and a retracted position. In the deployed position, the hydraulic structure presents a plurality of individual tooth structures used to break up the ground. In the retracted position, the plurality of individual tooth structures are fully enclosed in the excavator bucket such that the excavation process proceeds without the benefit of the plurality of individual tooth structures.Type: GrantFiled: March 17, 2020Date of Patent: November 8, 2022Inventor: Ralph Antonelli
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Patent number: 11306459Abstract: An accessory mounting system for a work vehicle includes a first mount extending from a lateral side of a body of the work vehicle, in which the first mount is configured to couple to a first end of a rotatable component to rotatably couple the rotatable component to the body of the work vehicle. Further, the accessory mounting system for includes a cover assembly having a cover, in which the cover assembly is coupled to the lateral side of the body of the work vehicle, and at least a portion of the cover is positioned laterally outward from the first mount such that the first end of the rotatable component is disposed between the lateral side of the body of the work vehicle and the portion of the cover while the first end of the rotatable component is coupled to the first mount.Type: GrantFiled: December 9, 2019Date of Patent: April 19, 2022Inventors: Richard Carter Eckrote, Alexander Fey, Brady Lewis
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Patent number: 10494234Abstract: A crane controller for a crane includes: a sliding position sensor for sensing a sliding position of a crane sliding arm, and a memory for storing entries for limit values for an operating parameter of the crane characteristic of the instantaneous crane load. Entries for maximum permissible limit values are stored in the memory for at least two sliding positions of the crane sliding arm. The crane controller also has an overload monitoring means, and a limit value for at least one operating parameter of the crane can be specified by the overload monitoring means of the crane controller. The limit value is specified by the overload monitoring means based on the stored entries according to the sliding position of the crane sliding arm. A limit value between the stored entries with respect to magnitude can be specified for a further sliding position between the stored sliding positions of the crane sliding arm.Type: GrantFiled: December 15, 2017Date of Patent: December 3, 2019Assignee: PALFINGER AGInventors: Eckhard Wimmer, Paul Reiter
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Patent number: 10174479Abstract: An implement system for a machine includes a primary blade and a secondary blade coupled to the primary blade through a linkage mechanism such that the secondary blade is trailing the primary blade. The implement system includes an actuator which controls a movement of the secondary blade. The implement system includes at least one position sensor which generates signals indicative of a position of the primary blade and a position of the secondary blade. The implement system further includes a controller which is in communication with the primary blade, the secondary blade and the position sensor. The controller receives the signals indicative of the position of the primary blade and the position of the secondary blade. The controller operates the actuator to control the movement of the secondary blade based on the position of the primary blade and secondary blade.Type: GrantFiled: December 13, 2016Date of Patent: January 8, 2019Assignee: Caterpillar Inc.Inventor: Biagio Ciarla
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Patent number: 10106961Abstract: A retaining device, a retaining system between a female part and a male part, and a female part and male part to assure retention between a wear element or tooth and an adaptor element or tooth bar used in excavators and the like. The female part, which can be a wear element or tooth, or an adaptor element or tooth bar, has, auto-fixed thereto, a retaining device which participates in the coupling with a pin of the female part with a male part, and prevents the pin from coming out of its blocking position, maintaining the fixing between the two parts, i.e., male part and female part. The coupling between both parts is detachable, allows removing the pin from the coupling and replacing the female part or male part together with the retaining device. The retaining device is formed by one or more attached tightening elements.Type: GrantFiled: November 3, 2016Date of Patent: October 23, 2018Assignee: METALOGENIA PATENTES, S.L.Inventors: Javier Rol Corredor, Javier Jimenez Garcia, Francisco Perez Soria, Jorge Triginer Boixeda, Ester Alonso Frigola
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Patent number: 9848521Abstract: A rock sifting and removing tractor attachment device for unearthing very large rocks and sifting large rocks from soil includes a connection frame configured for coupling to a vehicle. Each of a pair of fixed arms projects forward from a bottom of the connection frame. A sifting panel includes a plurality of interconnected spaced beams. The sifting panel is pivotable relative to the connection frame between a retracted position and an extended position. The beams are positioned parallel to the connection frame in the retracted position and the beams are positioned coplanar with the fixed arms in the extended position.Type: GrantFiled: October 6, 2016Date of Patent: December 26, 2017Inventor: Dillon James Moore
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Patent number: 9648796Abstract: A skid steer prying attachment device facilitates removal of large rocks or the like embedded in the ground. The device includes a frame having a top side, a bottom side, and a pair of lateral sides coupled to and extending between the top side and the bottom side. The frame is substantially planar having a forward face and a rearward face. A connector is coupled to the frame wherein the frame is configured for being coupled to a skid steer such that the forward face faces outwardly from the skid steer. A tongue is coupled to and extends from the frame outwardly from the forward face of the frame. A wedge is coupled to and extends from a distal end of the tongue relative to the frame.Type: GrantFiled: August 9, 2013Date of Patent: May 16, 2017Inventor: Bemis J. Tschetter
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Patent number: 9506215Abstract: A combination excavating bucket adapted for connection to a power driven excavating vehicle, comprising: a) bucket comprising a transverse smooth cutting bar along its front bottom edge, b) a retractable tooth bar pivotally mounted to inner opposed lateral sides of the excavating bucket, wherein the tooth bar comprises a plurality of teeth extending outwardly from the tooth bar, and a pivot means for alternately moving the tooth bar between i) a fully-extended position, wherein the tooth bar fits over the smooth cutting bar thereby permitting the bucket to function as a tooth-edged bucket; and ii) a fully-retracted position, wherein the tooth bar is retracted away from the smooth cutting bar and the smooth cutting bar is exposed thereby permitting the bucket to function as a smooth-edged bucket, wherein the pivot means comprises first and second pivot arms pivotally mounted to the bucket.Type: GrantFiled: February 29, 2016Date of Patent: November 29, 2016Inventors: Trent Krell, Chad Goldade
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Patent number: 9015967Abstract: An adjustable blade rake includes a mounting plate configured to mount to a machine. A backup plate is coupled to the mounting plate and includes a plurality of slots. A moldboard is attached to the backup plate. A plurality of tines are slidably located in the plurality of slots adjacent the rear side of the moldboard. A crossbar couples the plurality of tines together and a lifting device is operatively coupled to the plurality of tines and is configured to slide the plurality of tines in the plurality of slots.Type: GrantFiled: December 21, 2011Date of Patent: April 28, 2015Assignee: Caterpillar Inc.Inventor: Michael P. May
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Publication number: 20150060098Abstract: An adjustable cutting edge for a moldboard having a material engaging surface and a bottom edge. The adjustable cutting edge has a series of cutter bodies. Each cutter body has a top edge, a bottom cutting edge opposite the top edge, a first side, a second side opposite the first side, a front surface having a concave curvature, a rear surface opposite the front surface and having a convex curvature, and a position control profile extending along at least a portion of the rear surface. A series of retainers are carried by the moldboard, each retainer permitting a respective cutter body to move along the concave curvature to advance or retract the bottom cutting edge relative to the bottom edge of the moldboard and engaging the position control profile of a respective cutter body to retain the respective cutter body in a selected position.Type: ApplicationFiled: August 29, 2014Publication date: March 5, 2015Inventor: Marvin Pohl
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Patent number: 8689897Abstract: A tractor blade assembly is disclosed having a first blade member and one or more replaceable, supplemental blade members. The first blade member has a supplemental blade mounting section extending laterally beyond the side edge of the first blade member and a supplemental blade member that removably attaches to the supplemental blade mounting section such that a side edge of the supplemental blade member abuts the side edge of the first blade member. The tractor blade assembly may include alignment structure to restrict vertical movement of the supplemental blade member relative to the first blade member and align the side edges.Type: GrantFiled: December 18, 2010Date of Patent: April 8, 2014Assignee: Caterpillar Inc.Inventor: Michael P. May
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Publication number: 20120152573Abstract: A tractor blade assembly is disclosed having a first blade member and one or more replaceable, supplemental blade members. The first blade member has a supplemental blade mounting section extending laterally beyond the side edge of the first blade member and a supplemental blade member that removably attaches to the supplemental blade mounting section such that a side edge of the supplemental blade member abuts the side edge of the first blade member. The tractor blade assembly may include alignment structure to restrict vertical movement of the supplemental blade member relative to the first blade member and align the side edges.Type: ApplicationFiled: December 18, 2010Publication date: June 21, 2012Applicant: Caterpillar Inc.Inventor: Michael P. May
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Patent number: 7367408Abstract: A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mounted cylinders may be attached to the lip and may move the lip to completely cover or uncover the opening. The scraping device may have a tongue mounted to the bowl having a triangular-shaped plate mechanism that may be used to raise and to lower a cutting edge attached to the bowl. Cylinders connected to the mechanism may be retracted or extended to raise or to lower the scraping device. A load within the scraping device may be lifted by force exerted from a barrel end of a cylinder, thus utilizing a maximum potential of the cylinder.Type: GrantFiled: October 27, 2006Date of Patent: May 6, 2008Assignee: Caterpillar Inc.Inventor: John P. Moyna
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Publication number: 20040050565Abstract: This invention is a novel and practical track-filling apparatus for smoothing rutted soil formed by the repeated passage of wheels. This invention comprises a frame, a means for attaching the frame to a tractor, and a soil moving blade assembly mounted to the frame. This blade assembly has laterally disposed and spaced apart left and right blades. A means for adjusting the included blade angle between these blades is also provided. This means includes a single blade adjusting hydraulic ram that is operatively connected to the blades via a novel yet simple and reliable linkage assembly. Additionally, means for lifting and tilting the apparatus optimizes operation of this invention over irregular and differing terrain.Type: ApplicationFiled: September 17, 2002Publication date: March 18, 2004Inventor: Layne Klompien
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Patent number: 5813474Abstract: The plow blade comprising support member, a blade edge being mounted to the support member and having one or more insert holes, and one or more blade inserts having a wear portion, the one or more blade inserts being mounted within the one or more insert holes of the blade edge such that the wear portion protrudes to some extent from the one or more insert holes.Type: GrantFiled: September 11, 1997Date of Patent: September 29, 1998Assignee: Kennametal Inc.Inventor: Terry A. Manway
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Patent number: 5809760Abstract: An attachment is usable in combination with any conventional moldboard and provides a rake accessory unit for said moldboard. The rake attachment consists of a steel mounting plate, upon which a plurality of cylindrical steel tines, equally spaced, cut to a uniform length, the majority of which are welded to the mounting plate, and the remainder that extends below the the lower edge of the mounting plate, provides a rake configuration. The rake attachment is mountable in front of the moldboard, and the depth of the tines when used for grading the roads or recovering gravel from the turf, can be adjusted by conventional skid shoes, or by the hydralic lift systems commonly used on tractors.Type: GrantFiled: May 26, 1995Date of Patent: September 22, 1998Inventor: William G. Rexroat
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Patent number: 5562365Abstract: Compaction of a soil surface is achieved by means of a machine (10) which has a movable, wheeled carriage (20) and an impact roller coupled resiliently to the carriage so as to move together with the carriage. The impact roller has one or more out-of-round compactor masses (12) designed to apply periodic impact blows to the soil surface (36). A soil working implement, in the form of an upright scraper blade (44) is carried by the carriage in a position trailing the impact roller. The function of the blade is to scrape soil into the localized indentations (40) that are formed in the soil surface by the periodic impact blows applied by the compactor mass or masses. This smooths out the soil surface for subsequent passes and reduces the shock loading on the tractive vehicle which pulls the carriage.Type: GrantFiled: April 17, 1995Date of Patent: October 8, 1996Assignee: Compaction Technology (Soil) LimitedInventor: Aubrey R. Berrange
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Patent number: 5213164Abstract: An improved soil leveling apparatus (10) includes a frame (12), connecting hitch means (14), and adjustable lost motion linkage (48) secured to the top connection point (52) of the hitch, and an optional scarifier assembly (16) which is supported on a connector (66) pivoted between the legs (36,40) of the hitch. The scraper member (18) of the frame (12) is of generally inverted J-shaped cross section, and tine subassemblies (90) can be substituted for the teeth (78) on the scarifier assembly (12).Type: GrantFiled: June 13, 1991Date of Patent: May 25, 1993Inventor: Orlan H. Mork
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Patent number: 4967850Abstract: Blade assemblies having a plurality of teeth extending therefrom are useful for working soil and/or for removing objects buried under the surface of the ground. However, having a plurality of teeth extending below the blade assembly can be detrimental since ground clearance is reduced or if the blade assembly inadvertently lowers during movement of the vehicle from one job site to another. In the subject arrangement, a blade assembly is provided having a plurality of teeth extending therefrom. The plurality of teeth are retractable in response to movement of a mechanism within the blade assembly. Upon raising the blade assembly to its carry position with subsequent retraction of the plurality of teeth, a mounting bar assembly which is associated with the plurality of teeth is moved into a recessed pocket of a latching flange. The latching flange is attached to a vehicle by a frame assembly.Type: GrantFiled: November 2, 1989Date of Patent: November 6, 1990Assignee: Caterpillar Inc.Inventors: Brent C. Bargfrede, Robert J. Purcell
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Patent number: 4945663Abstract: Planting mounds for afforestation purposes and the like are formed by an apparatus wherein a device having at least one mound-forming and compacting body is provided on a movable support arm or boom of a carrier vehicle adapted to be driven along the ground. The body has an elongate, longitudinally concave soil-pushing front surface of shape and dimensions suitable to define the upper surface of a planting mound, and preferably has digging teeth or the like at its lower forward edge. The body is supported for pivotal movement relative to the arm or boom and may be pivoted by a piston-cylinder assembly or the like. For mound formation, the body is placed in a digging position with the soil-pushing surface facing in a first direction substantially parallel to the ground.Type: GrantFiled: October 30, 1989Date of Patent: August 7, 1990Inventor: Aston Nilsson
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Patent number: 4910891Abstract: A device for attaching various earth-working tools to a bucket of excavating equipment, such as a front-end loader, backhoe, or excavator. A frame has two spaced parallel plates, each having a wedge-shaped notch on one side. A stabilizing bar, adjacent to the open end of the notches, connects the plates. The tool, such as an asphalt roller or cutter, is attached to the bottom of the frame between the plates. At the top of the frame, a clamping mechanism, having a pivoting arm, is mounted between the plates. To use the device, the excavator bucket is inserted into the wedge-shaped notch, with the device holding the bucket in place against the edges of the wedge-shaped notch, the stabilizing bar, and the pivoting arm of the clamping mechanism.Type: GrantFiled: June 20, 1988Date of Patent: March 27, 1990Assignee: Construction Technology, Inc.Inventors: James W. Martin, Thomas J. Martin
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Patent number: 4909330Abstract: An automotive earth moving vehicle for civil and military applications. The lade is movable with respect to the body by two independently operable sets of fluid driven actuator sets which are in intersecting spatial relationship. Each actuator set is arranged symmetrically with respect to a vertical median plane of the blade and its actuators are in parallel spatial orientation with respect to each other. One set of actuators is designed for lifting and lowering the blade while the other set is designed to bring about oscillation and tilt. The blade comprises two segments horizontally linked to each other and is thus adapted to alternate between a dozer mode and a plough mode. Wing members may be provided for attachment to the two flanks of the blade in the plough mode.The vehicle also comprises a sensor for use in the plough mode adapted to feed the blade movement control with data on the terrain.Type: GrantFiled: December 12, 1986Date of Patent: March 20, 1990Assignee: The State of Israel, Ministry of Defence, Israel Military IndustriesInventors: Igal Kasher, Haim Ginat
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Patent number: 4883129Abstract: Ground engaging bits used in abrasive road grading applications utilizing carbide inserts brazed to the leading face of the steel tip are beneficial on motor grader blades. Commercial road grading bit assemblies used consistent thickness, rectangular carbide inserts brazed to the leading edge of the steel tip. Due to wear and high residual stresses imparted upon the insert from the brazing operation, premature cracking and breaking of the carbide inserts occur. The subject bit arrangement utilizes a carbide insert with a flat rectangular cutting face of non-constant thickness brazed to a leading edge of a steel body. The carbide insert has a thickness that increases from the top of the carbide insert and reaches a maximum at the bottom of the steel body, where bit wear is the greatest. The increasing thickness of the carbide tip extends bit life over the current rectangular design and allows for a more efficient and economical use of the carbide.Type: GrantFiled: December 16, 1988Date of Patent: November 28, 1989Assignee: Caterpillar Inc.Inventors: Alan H. Lonn, Daniel W. Nelson
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Patent number: 4781518Abstract: A tree gripping device adapted to be mounted on the top of a bulldozer blade. The device has a base member mounted on top of the blade, the base member projecting past one side of the blade. A gripping arm is pivotally mounted on the projecting portion of the base member, the arm extending along the side of the blade. Actuating structures move the gripping arm toward the side of the blade to grip a tree between them.Type: GrantFiled: February 12, 1988Date of Patent: November 1, 1988Assignee: Equipements Denis Inc.Inventor: Jack W. Paavila
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Patent number: 4753299Abstract: A blade assembly for hard earth road graders has a support frame for attachment to the mouldboard of the road grader and a plurality of evenly spaced picks located in sockets spaced along the lower edge of the support frame. The picks have spigots to releasably locate in the support frame sockets and engage with the support frame to prevent relative rotation between the spigots of the picks and respective sockets. The picks each have a tungsten carbide tile attached to their front face with a straight transverse cutting edge along the lower edge. In use the working face of the picks is perpendicular to a road surface to achieve a shaving action.Type: GrantFiled: May 2, 1986Date of Patent: June 28, 1988Inventor: Thomas A. Meyers
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Patent number: 4671000Abstract: The invention is a new design for dipper teeth for bulldozer buckets, comprising a pair of teeth joined by a plate, each tooth having a flat, pointed front edge, longitudinal U-shaped slot at its rear end, and bolt means disposed through an opening in the top surface to hold the teeth in position on the bucket.Type: GrantFiled: November 18, 1985Date of Patent: June 9, 1987Inventor: Young T. Kim
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Patent number: 4616433Abstract: Among the variety of bucket arrangements that are commonly available, several are specifically designed for ripping applications in materials that are extremely hard to penetrate. While these types of buckets are normally satisfactory in ripping hard, strong, brittle materials, their designs do not lend themselves to excavating and dumping weaker more plastic materials and thus exhibit little or no versatility. The bucket arrangement of the subject invention includes a first and second ground penetrating means that are selectively positioned on the bucket with respect to each other. The selective positioning allows sole engagement of either of the first or second ground penetrating means with the ground or simultaneous engagement of both penetrating means with the ground. Such an arrangement provides superior operation in a ripping capacity and yet the selective positioning of the first and second penetrating means also permits excellent operation in weaker or plastic materials.Type: GrantFiled: February 12, 1985Date of Patent: October 14, 1986Assignee: Caterpillar Inc.Inventors: Harvey A. Knell, Lloyd B. Rumble
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Patent number: 4614476Abstract: An improved sugar cane grab loader has a hydraulically actuated grab and supporting boom, and a mechanical pushpiler. The pushpiler has floating teeth to prevent undue ground penetration during its scraping action. The teeth move in free but limited fashion in a rearwardly inclined direction. The boom lifts the grab from the soil by a controlled height during closing action of the grab around the cane bundled on the ground.Type: GrantFiled: October 3, 1983Date of Patent: September 30, 1986Assignee: Santal Euipamentos S.A. Comercio E IndustriaInventor: Luis A. C. Mello Ribeiro Pinto
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Patent number: 4601119Abstract: A corner tooth is useful, for example, on construction equipment buckets to protect the sidewalls from abrasive wear which normally results from continued contact with the ground. In order to protect the sidewall, others use elements secured directly to the sidewall or various forms of specialized teeth mounted on the corner. Many of these specialized teeth inhibit the tooth's ability to penetrate the ground. The present corner tooth provides the protection for the sidewall while still maintaining good strength and penetration. This is due to a single flat member being oriented vertically with respect to the normal working position of the tooth and a single reinforcement rib extending perpendicular to the flat member. Furthermore, since the tooth is symmetrical about the second plane and the rib is located along the second plane the tooth can be used on either corner. This eliminates the need to manufacture and stock an extra part of a different design.Type: GrantFiled: October 1, 1984Date of Patent: July 22, 1986Assignee: Caterpillar Tractor Co.Inventor: Gene R. Klett
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Patent number: 4516340Abstract: An attachment assembly for securing an excavation tooth in a row of closely spaced teeth on large earth excavating equipment. The assembly includes a nose piece, an excavation tooth and a securement pin. The nose piece has a base portion which is secured in a conventional manner to the shovel or dipper bucket of the excavation equipment, and a tapered extension for carrying the tooth. The tapered extension of the nose piece defines a recessed flat horizontal surface at the extended end thereof inwardly spaced from the lateral sides of the nose piece to define a horizontal stabilizing surface bordered by a vertical stabilizing wall. The tooth has a channel therein corresponding in configuration to the tapered extension of the nose piece so that the nose piece can fit thereover in a mating relationship.Type: GrantFiled: June 6, 1983Date of Patent: May 14, 1985Inventor: Richard L. Launder
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Patent number: 4512090Abstract: A backhoe is provided with a retractable scraper and scarifier. The backhoe excavator bucket includes a stationary first mounting plate and a second plate pivotally mounted thereon for rotational movement with respect thereto and which carries a scarifier assembly. The scarifier assembly is movable in a plane parallel to the second plate. The second plate is provided with a lower rearwardly curved cutting edge or scraper portion containing slots through which the scarifier teeth may be extended or retracted. Rotational movement of the second plate with respect to the first and movement of the scarifier assembly with respect to the second plate is accomplished by hydraulic or pneumatic cylinders controlled by the operator of the prime mover.Type: GrantFiled: November 25, 1983Date of Patent: April 23, 1985Inventor: Jeff Billings
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Patent number: 4467876Abstract: A ripper tooth means is disclosed in combination with a wheeled vehicle having a pair of forwardly extending arms, a frame secured to and extending between the arms, and a horizontal shaft removably mounted on the frame. The ripper tooth means is comprised of an elongated arm means having upper and lower ends and a longitudinal axis. A ripper tooth element is mounted on the lower end of the arm means. A sleeve element having a longitudinal axis extending at right angles to the longitudinal axis of the arm means is mounted on the upper end of the arm means. The sleeve element is slidably mounted on the horizontal shaft. A stop element is mounted on the sleeve element and is adapted to engage a portion of the frame upon limited rotational movement of the arm means with respect to the frame.Type: GrantFiled: October 19, 1981Date of Patent: August 28, 1984Inventor: Ronald L. Gaule
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Patent number: 4463812Abstract: Apparatus for mounting on earth moving machinery including a blade portion, a rake portion, a support portion and a mounting portion; the blade portion including a substantially straight elongated plate section and a curved section extending therefrom; the rake portion including a plurality of spaced tooth members associated with the blade portion, the tooth members being disposed generally transversely of the length of the blade portion, each of the tooth members including a shank section and a hook section, each of the shank sections being disposed between a pair of spaced cross members extending substantially perpendicular to the plate section, aligned openings through the pair of cross members and the shank section and a pin extending therethrough; the support portion including a bar member supporting the tooth members, a longitudinal section located adjacent to the bar member; the mounting portion including side connectors disposed adjacent the side edges of the bar member, arm members releasably engageaType: GrantFiled: February 15, 1983Date of Patent: August 7, 1984Inventor: Andrew O. Williamson
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Patent number: 4448260Abstract: A universal earth-loosening attachment useful with earth-moving vehicles. The attachment mounts to the back side of tractor and bulldozer blades. The attachment includes a spike which engages the earth for loosening the earth during backward motion of the vehicle and which automatically swings upwardly to drag inoperatively on the earth surface during forward motion of the vehicle. Adjustment means allow the spike to engage the earth at an optimum angle relative to the earth grade for efficient operation. The spike is self-storing in an upright position.Type: GrantFiled: April 7, 1982Date of Patent: May 15, 1984Assignee: Wayne A. HarmsenInventors: Wayne A. Harmsen, Arlyn V. Harmsen
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Patent number: 4407081Abstract: A bucket for use in conjunction with earth working and material handling implements having a plurality of tooth members associated therewith. The bucket includes a cutting-edge plate secured to the leading edge of a backwall plate. The cutting-edge plate has a plurality of downwardly extending transversely spaced tongue portions associated with a forward end thereof. The tooth members have transverse grooves formed in the upper surfaces thereof for receipt of the tongue portions. Each tooth member has a pair of oppositely disposed beveled portions to permit reversal thereof on the cutting-edge plate.Type: GrantFiled: December 7, 1981Date of Patent: October 4, 1983Assignee: J. I. Case CompanyInventor: Charles B. Hanson
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Patent number: 4364191Abstract: A rake for use with tractors has a blade connectable to a tractor and a plurality of teeth extending from the bottom of the blade. The teeth are pivotally connected to permit movement of the teeth away from objects encountered when the tractor moves. Fluid piston and cylinder combinations interconnect the teeth with the blade so movement of the teeth displaces pressurized fluid within the piston and cylinder combinations. The pressurized fluid reverses the pivotal movement when the teeth clear the objects.Type: GrantFiled: October 21, 1980Date of Patent: December 21, 1982Inventor: Lyle C. Cazes
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Patent number: 4208817Abstract: PCT No. PCT/US79/00090 Sec. 371 Date Feb. 15, 1979 Sec. 102(e) Date Feb. 15, 1979, PCT Filed Feb. 15, 1979, Ser. No. 30,244. A router bit assembly for an earth working apparatus (10, 12) including earth working means having a generally horizontally elongated blade (18) with a generally vertically extending side member (22) at at least one end of the blade, a relatively tall router bit (32) formed of plate metal extending along the side member and in proximity to the blade, a relatively short support (34) for the router bit interposed between the router bit and the side member and having a first lip (36) overlying and substantially abutting the upper extremity (38) of the router bit and a second lip (40) underlying the lower extremity (30) of the side member, and removable bolts (50) securing the router bit and the support to the side member.Type: GrantFiled: February 15, 1979Date of Patent: June 24, 1980Assignee: Caterpillar Tractor Co.Inventor: Russell D. Merkel
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Patent number: 4204349Abstract: A corner tooth construction for a loader bucket in which a corner tooth is welded to a vertically disposed corner reinforcing member and a cutting edge member as an integral part of the bucket structure. The corner tooth can be readily installed or replaced without affecting the constructional welds of the bucket and without impairing the integrity of the bucket.Type: GrantFiled: December 22, 1978Date of Patent: May 27, 1980Assignee: Clark Equipment CompanyInventor: Thomas J. Tallis
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Patent number: 4108250Abstract: An earthworking device such as a power scraper has a cutting edge assembly which may be mounted to give either a straight or a crenellated edge. The assembly consists of several identical long, narrow, rectangular members which have chamfered longitudinal marginal portions and are mounted alternately with the chamfers facing up and facing down, and the latter chamfers overlying the former. Threaded bolts impale holes near one end of the members which have their chamfers down so as to secure those members to the top surface of the scraper blade and frictionally clamp the other members to the blade.Type: GrantFiled: December 27, 1976Date of Patent: August 22, 1978Assignee: Caterpillar Tractor Co.Inventor: Russell D. Merkel
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Patent number: 4086967Abstract: An end bit for selective and adjustable mounting to an earthmoving vehicle structure, such as a bulldozer blade, having opposite corner portions. The bit includes transversely extending cutting edge portions and a mounting portion adapted to be selectively mounted to either of the opposite corners of the blade with one or the other of the cutting edges exposed in cutting position and with the nonexposed cutting edge disposed in a retracted position. The mounting portion is further adapted to permit the bit to be selectively repositioned on either blade corner portion in any one of a plurality of different extended positions to compensate for wear of the exposed cutting edge.Type: GrantFiled: June 16, 1976Date of Patent: May 2, 1978Assignee: Caterpillar Tractor Co.Inventors: Larry G. Eftefield, Paul J. Lukavich, Roger R. Mitchell
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Patent number: 4073077Abstract: Snowplow blades can be immediately varied in length at one or both ends by providing extensions of the same shape as the blade, which extensions carry studs which are received in sockets, preferably lengthwise of the back of the blade. The studs are pinned in the sockets for quick and easy fastening and removal.Type: GrantFiled: January 3, 1977Date of Patent: February 14, 1978Inventors: Albert E. Essel, deceased, by Virginia G. Essel, executrix
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Patent number: 4055223Abstract: A corner tooth assembly, for an earthmoving implement having an upright sidewall and a cutting edge disposed in laterally extending relation from the sidewall, includes a corner tooth adapter having a hollow rearward portion secured to a lower forward outside surface of the sidewall and a nose portion extending forwardly of the sidewall, and a replaceable wear tip mounted on the nose portion of the adapter protectingly beyond the implement so that loads on the tip during forward movement of the implement are transmitted through the adapter directly rearwardly to the sidewall without affecting the cutting edge.Type: GrantFiled: October 4, 1976Date of Patent: October 25, 1977Assignee: Caterpillar Tractor Co.Inventors: Thomas P. Casey, Howard A. Hansen, Gene R. Klett, James A. Olthoff
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Patent number: 4047312Abstract: A corner tooth assembly which is removably secured to the corner of an implement for engaging the earth in a longitudinally oriented forward direction, and which includes a laterally extending bottom plate, a side plate integrally secured to the bottom plate, and an elongated forwardly extending earth penetrating structure integrally secured to the bottom and side plates for overlappingly engaging the implement protectingly exteriorly of the corner thereof.Type: GrantFiled: September 8, 1976Date of Patent: September 13, 1977Assignee: Caterpillar Tractor Co.Inventor: Visvaldis A. Stepe
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Patent number: 4019268Abstract: This invention is directed to an apparatus for compacting snow for skiing and snowmobiling. It includes an elongated snow compacting member with means which permit its ends to move upwardly and downwardly so that when one end contacts an elevated snow surface that end automatically moves upwardly to substantially equalize the p.s.i. exerted by the snow compacting member against the snow which is being compacted. It also includes snow compacting wings which extend outwardly from and are pivotally secured to the central snow compacting section of the snow compactor and power means for rotating the wings upwardly. The outer ends of the wings are secured to the inner ends by shear bolts or pins so that when an outer end contacts a rigid object it falls away and is not damaged. Means is provided for adjusting the angle of attack of the bottom wall of the snow compacting element to the surface of the snow to vary the pressure exerted upon it.Type: GrantFiled: November 1, 1976Date of Patent: April 26, 1977Assignee: Valley Engineering, Inc.Inventor: Donald Herbert Waterman
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Patent number: 4007550Abstract: A replaceable corner tooth assembly is disclosed, for an earthmoving implement having a sidewall member and a base plate member disposed in laterally extending relation therefrom at a forward corner thereof, including an elongated body with a rearwardly extending, fully corner encasing angle member and a rearwardly extending cooperating inner leg which load-transferringly and interlockingly embrace the sidewall member and the base plate member at the forwardly disposed intersection thereof for maximizing effective corner protection of the implement.Type: GrantFiled: May 19, 1975Date of Patent: February 15, 1977Assignee: Caterpillar Tractor Co.Inventor: Visvaldis A. Stepe
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Patent number: 4006544Abstract: Two embodiments of a replaceable cutting edge assembly for earthmoving buckets, each assembly including a plurality of cutting edge sections arranged along a leading edge of the earthmoving bucket floor with digging teeth overlapping the junctures between the cutting edge sections, the cutting edge sections being configured for attachment to the bucket floor, for example, by means of bolts, while trapping and holding the digging teeth in place in order to facilitate replacement of individual portions of the assembly while also adapting the bucket for use with a single elongated cutting edge without the digging teeth. In one embodiment, the cutting edge sections and teeth are designed to provide a flush bottom surface suitable for finish work even with the teeth in place. In the second embodiment, additional means are employed to secure both the digging teeth and cutting edge sections in place along the leading edge of the bucket floor.Type: GrantFiled: May 12, 1975Date of Patent: February 8, 1977Assignee: Caterpillar Tractor Co.Inventor: Visvaldis A. Stepe
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Patent number: 3995384Abstract: A replaceable edge bit structure for a blade- or bucket type earthworking implement includes a bit having a pair of underbeveled catch regions in one of its faces. One of the regions has a configuration complementing that of the working edge of the implement's moldboard; the other region has a configuration complementing portions of mounting parts for the bit which are secured to the moldboard. The bit is removably held in conjoint engagement with the moldboard and mounting parts by a single pin disposed in front of and parallel to the moldboard, engaging the bit and mounting parts.Type: GrantFiled: November 25, 1974Date of Patent: December 7, 1976Assignee: John F. DuncanInventor: Jay J. Wood
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Patent number: 3994084Abstract: In earthmoving equipment, such as a scraper, an adjustable feedthrough protective bit is mounted on each side wall of the bowl in position to protect the leading edges of the bowl in the vicinity of a cutter blade extending between said side walls. Guide straps or abutments are provided on the walls to hold each bit in fixed position on the bowl and a novel arrangement of apertures and openings are provided in each bit and in the wall of the bowl to facilitate effectively securing the bit to the bowl. The bit configurations may be such as to permit end-for-end reversal of orientation of the bit and to provide for use of the bit on either side of the equipment.Type: GrantFiled: April 9, 1975Date of Patent: November 30, 1976Assignee: Caterpillar Tractor Co.Inventors: Roger M. Smith, Eugene M. Wilson
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Patent number: RE31045Abstract: Snowplow blades can be immediately varied in length at one or both ends by providing extensions of the same shape as the blade, which extensions carry studs which are received in sockets, preferably lengthwise of the back of the blade. The studs are pinned in the sockets for quick and easy fastening and removal.Type: GrantFiled: February 22, 1980Date of Patent: October 5, 1982Inventors: Albert E. Essell, deceased, by Virginia G. Essell, executrix, Robert A. T. Essell, Christopher W. Essell