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| Number | Title | Issue Date |
| 7891121 | Earthworking implement A blade assembly for an earthworking implement has a set of teeth that are independently slideable within guides. The teeth slide to conform to an undulating surface and permit scraping of the surface. ... | 02/22/2011 |
| 7278228 | Hinged tooth The invention relates to a hinged tooth for a cutting wheel comprising a pivot bearing for pivotally supporting on a pivot pin located on a cutting wheel hub, a cutting tooth support extending from the pivot bearing and a steering arm extending from the pivot bearin... | 10/09/2007 |
| 7207633 | Scaling assembly A scaling apparatus comprises a hammer component and a pick component which includes a tooth. The apparatus also includes a mechanism for moving the pick component with respect to the hammer component to thereby impart a scaling force to and through the tooth. In a ... | 04/24/2007 |
| 7117952 | Automated attachment vibration system One embodiment of the present invention pertains to a system, including a mechanical arm, an attachment member, an actuator, a power system, an electronic control, and an operator interface. The attachment member is tiltably mounted on the mechanical arm about a piv... | 10/10/2006 |
| 7107711 | Tool mounting device The current invention describes a tool mounting device that permits a rotating attachment of a tool to an excavator arm in such a way that the tool can be used for work in relatively small work spaces, independent of the alignment of the excavator arm and the excava... | 09/19/2006 |
| 6925940 | Tamping tine for a tamping unit A tamping tine for tamping ballast underneath a railroad track has a tine shank and a tine pad attached to the shank. For increasing its abrasion resistance, the tine pad is formed with a pad casing of wear-resistant material. The pad casing is formed with an openin... | 08/09/2005 |
| 6681867 | Oscillating ground engaging tool A ground engaging tool that oscillates in a motion, relative to the ground, that is substantially vertically upward, and then downward and forward in a direction in which the apparatus is moved.... | 01/27/2004 |
| 6574891 | Excavation bucket incorporating an impact actuator assembly An excavation bucket incorporating an impact actuator assembly is described herein. The excavation bucket includes a bucket body, a movable head, a movable floor portion mounted to the movable head and an impact actuator provided between and mounted to th... | 06/10/2003 |
| 6517164 | Hammer-ripper excavating system A hammer-ripper system for use with the mounting on the boom arm, of an excavator/backhoe, of a conventional hydraulically-operated hammer fitted with a "shortened" chisel. A "ripping-type" device like a chisel tooth mounts to a lever with its pivot point... | 02/11/2003 |
| 6460276 | Excavation bucket incorporating an impact actuator assembly An excavation bucket incorporating an impact actuator assembly including a bucket body, a movable floor portion and an impact actuator provided between and mounted to the bucket body and the movable floor portion is described herein. The movable floor por... | 10/08/2002 |
| 5946832 | Vibration bucket arrangement The invention relates to a vibration bucket arrangement comprising a bucket part (1) that comprises a bottom (2), a rear part (3) and lateral end parts (4 to 5). The arrangement further comprises an attachment part (6, 8, 9, 9a to 9d, 99) with which the b... | 09/07/1999 |
| 5813152 | Snowblower chisel attachment A snowblower chisel attachment includes an oscillatable elongate blade member oscillatably disposed at a bottom front of a snowblower housing; a pair of support arms pivotally suspended from the sidewalls of the housing and being secured to the oscillatab... | 09/29/1998 |
| 5353532 | Tooth of active-action excavator bucket A characteristic feature of the present invention is that a damping unit is rovided between the casing, impact tool and elements of a pneumatic hammer. The damping unit may have a different design.... | 10/11/1994 |
| 5210964 | Spot mounder method and apparatus Method and apparatus for forming spot mounds used in assisting the germination and growth of tree seedlings in reforestation. A crawler moves forwardly while a digging blade connected to a frame is lowered into the soil in order to overturn the soil and f... | 05/18/1993 |
| 4959915 | Impact bucket apparatus Impact buckets are useful, for example, in fracturing rock and other hard material which is to be excavated. Known systems using vibrating mechanisms which are mechanically coupled to a cutting edge assembly do not produce forces high enough to efficientl... | 10/02/1990 |
| 4892358 | Bucket system with percussive penetration member A bucket system which includes a bucket having a bottom with a digging edge. An impact-type penetration member projects beyond the digging edge to penetrate the surface of a body being excavated. The free edge of the penetration member is continuous and i... | 01/09/1990 |
| 4892359 | Bucket system with percussive penetration member A bucket system which includes a bucket having a bottom with a digging edge. An impact-type penetration member projects beyond the digging edge to penetrate the surface of a body being excavated. The free edge of the penetration member is continuous and i... | 01/09/1990 |
| 4704812 | Scraper pan with cutting blade A blade assembly for the cutting edge of a scraper pan type earth mover includes a fixed blade having forward and downwardly projecting cutting teeth and a moveable blade also having cutting teeth, the moveable blade overlying the fixed blade, and power m... | 11/10/1987 |
| 4698925 | Soil reclaiming implement Apparatus for processing of soil by vibratory sifting to remove rocks and other objects embedded in the soil provides a scoop for use with a backhoe or crawler tractor having a positionable boom. The scoop includes an elongated main frame to which are sec... | 10/13/1987 |
| 4663868 | Scoop wheel having oscillating impact cutters A rotary wheel excavator having scoops with impact cutters only at the two front corners of the cutting edge of each scoop. Structure is provided for vibrating each impact cutter during a predetermined portion of the rotation of the wheel. The left and ri... | 05/12/1987 |
| 4625438 | Excavating bucket having power driven, individually controlled digging teeth An excavating bucket, for example a bucket of the type used on a backhoe, has a leading or digging edge along which is provided a row of individually pneumatically driven digging teeth. Power for the teeth is supplied through impact hammers which reciproc... | 12/02/1986 |
| 4573743 | Bucketwheel excavator with oscillating nozzles Instead of teeth or similar cutting or loosening means, oscillating nozzles are arranged on the outer backs and the outer side walls of the buckets of the bucketwheel of a bucketwheel excavator, the nozzles being capable of being supplied with liquid, in ... | 03/04/1986 |
| 4467539 | Resonance aided front end loader A front end loader has a loading bucket secured to a tractor and a transversely elongate cutter blade closely spaced forward of a lower front edge of the bucket. Improved apparatus for reciprocating the blade in forward and aft directions relative to the ... | 08/28/1984 |
| 4454666 | Resonance aided front end loader A front end loader has a loading bucket secured to a tractor and a transversely elongate cutter blade closely spaced forward of a lower front edge of the bucket. Improved apparatus for reciprocating the blade in forward and aft directions relative to the ... | 06/19/1984 |
| 4359102 | Resonance aided earth-working equipment A bulldozer having a transversely elongate cutter blade closely spaced from the bottom edge of the mold board is disclosed. The cutter blade is mounted for reciprocal motion in forward and aft directions relative to the mold board. Unidirectional force im... | 11/16/1982 |
| 4132017 | Blade for earth moving equipment A blade for an earth moving machine mounted in the machine as to have at least one strip extending forward of the leading edge to engage and cut the soil by an oscillatory movement about an axis close to and parallel to the leading edge. A spading action ... | 01/02/1979 |
