Removable Tool Portion (e.g., Replaceable Cutting Or Wearing Element For Tool) Patents (Class 172/772)
  • Patent number: 5350022
    Abstract: An attachment assembly for securing ripper teeth to an earth excavation device which comprises a substantially "J"-shaped ripper shank defining a lower forwardly projecting tapered end portion for carrying the tooth, an upper end portion for attachment to the excavation device and a front end wall defining a forwardly projecting elongated securement rib. An elongated wear cap extends over the lower portion of the front end wall of the shank and defines a tapered front digging surface, a lower tapered end portion which merges into the forwardly projecting tapered end portions of the shank and with said portion extends into a cavity in the base of the ripper tooth. The rear surface of the wear cap defines an open channel therein adapted to receive the securement rib on the front end wall of the shank upon the wear cap being transversely slided thereover.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: September 27, 1994
    Assignee: H & L Tooth Company
    Inventors: Richard L. Launder, Charles Clendenning
  • Patent number: 5333696
    Abstract: Reversible protectors are normally utilized to protect the leading edge of a work member from high wear during use. It is also advantageous to have a reversible protector that can be secured to a work member even though the work member may be composed of several components which are welded together thus adversely affecting the tolerances between the various components. In this subject arrangement, a reversible protector is provided and adapted to be mounted on and secured to a work member. The reversible protector has recesses located in the lower end thereof which, when assembled, are in mating engagement with protuberances on the work member. This mating engagement secures the lower end of the reversible protector to the work member. A pair of aligned openings are provided near the other end thereof which aligns with a transverse hole in the work member for receiving a retaining mechanism therethrough.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: August 2, 1994
    Assignee: Caterpillar Inc.
    Inventor: Erwin D. Cornelius
  • Patent number: 5325799
    Abstract: A seed boot for depositing a seed within a furrow including spaced side members, a face plate extending between forward edges of the side members, and a rear spacer member extending between rearward edges of the side members, and a wear insert secured to each of the side members of the seed boot. The insert includes an elongated rectangular bar having a top and bottom surface, a leading and trailing face and longitudinal side faces extending between and around the peripheral edges of the top and bottom surfaces.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: July 5, 1994
    Assignee: Kennametal Inc.
    Inventor: Don C. Rowlett
  • Patent number: 5314029
    Abstract: A self-sharpening pyramidal shaped insert of a refractory hard metal for use as a leading penetrating element of a soil opener member of an agricultural tool. The insert includes a boss member of a generally frustoconical shape including a circular bottom and outwardly curved side surface extending upwardly from the circular bottom and terminating in a flange, and a penetrating tip having four nonparallel triangular sides, each triangular side having a common leg with a bordering triangular side and a third leg contiguous the flange. The triangular sides converge to a common vertex. The insert inhibits wear of the agricultural tool and contributes to proper soil flow as the agricultural tool cuts a slice in the soil.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: May 24, 1994
    Assignee: Kennametal Inc.
    Inventor: Don C. Rowlett
  • Patent number: 5310009
    Abstract: A cutting insert and a wear insert for use in an agricultural tool having a cutting edge for forming a furrow. The agricultural tool includes an essentially syncline shaped slicer having a leading member, a trailing member and a pair of sides tapered from the trailing member toward a sharp convex cutting edge extending longitudinally upwardly and forwardly from the trailing member toward the leading member. A leading deflector extends upwardly and forwardly from the cutting edge and is formed integral the slicer by a mounting web. The mounting web includes a pair of sides extending rearwardly from the leading deflector and expanding to a heel having first and second sides adjoining respective sides of the syncline shaped slicer and a rear portion. Each of the first and second sides having formed therein a notch and having affixed thereto a wear insert. A cutting insert is secured within a slot along the cutting edge.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: May 10, 1994
    Assignee: Kennametal, Inc.
    Inventor: Don C. Rowlett
  • Patent number: 5241765
    Abstract: A lock assembly for a surface subject to abrasive wear including a base element and a wear element coupled either by conforming T-shaped elements or dovetails and which includes a lock resiliently urged against an integral keeper in the base or wear element.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: September 7, 1993
    Assignee: ESCO Corporation
    Inventors: Larren F. Jones, Emory D. Hungerford, Frederick C. Goeth
  • Patent number: 5224554
    Abstract: A transplanter is disclosed which provides uniform planting without damaging plants. The transplanter includes a mechanism for receiving plants and depositing them in a furrow formed by a unique furrow opening shoe having a polymer outer layer which does not accumulate dirt thereon. A projecting ridge is provided for protecting the layer.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: July 6, 1993
    Inventor: Howard B. Poll
  • Patent number: 5185946
    Abstract: A plow assembly useful for moving material from surfaces such as roadways in various selectable discharge directions includes a moldboard assembly and pivotable frame. The moldboard assembly is capable of being oriented in a right side discharge or a left side discharge in response to pivoting movement of the pivotable frame. A tripping mechanism is included to prevent damage of the plow assembly from obstacles located on the plowing surface. A cutting edge of the plow assembly is secured to the moldboard assembly by a wedge mechanism thus allowing quick cutting edge replacement.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: February 16, 1993
    Inventor: Eugene A. Farrell
  • Patent number: 5078217
    Abstract: A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: January 7, 1992
    Inventor: Danny H. Harrell
  • Patent number: 5076368
    Abstract: A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: December 31, 1991
    Inventor: Danny H. Harrell
  • Patent number: 5063695
    Abstract: An assembly of wear element for installation on the wearable part of a structure engageable with abrasive material including a relatively elongated base element adapted to be secured to the wearable part and a relatively elongated wear element releasably, reversibly mounted on the base element, each of the elements having longitudinally spaced apart dovetail surfaces in one outstanding wall portion and at least one surface in a second opposed outstanding wall portion positioned between the spaced art dovetail surfaces. A method of designing the dovetail connection through a repeating pattern is also disclosed.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: November 12, 1991
    Assignee: ESCO Corporation
    Inventors: Terry L. Briscoe, Paul C. Sprunger
  • Patent number: 5024281
    Abstract: A reversible moldboard plow has a plow carrying beam swingably mounted at the rear crossbar of a frame which carries trunnion mounted cylinders connected to the beam for moving the beam, the front of the frame carrying hitch pins for connection to a tractor hitch, the hitch pins being vertically movable in alternate relation in order to tilt the frame and the beam with the moldboards supported thereon. The hitch pins may be moved by independent cylinders and pistons or, alternately, by the movement of a transverse hitch bar on which they are mounted.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: June 18, 1991
    Assignee: Long Manufacturing N.C., Inc.
    Inventor: Thomas D. Furlough
  • Patent number: 5020603
    Abstract: A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: June 4, 1991
    Inventor: Danny H. Harrell
  • Patent number: 5005304
    Abstract: An assembly of wear elements for installation on the wearable part of a structure engageable with abrasive material including a relatively elongated base element adapted to be secured to the wearable part and a relatively elongated wear element releasably, reversibly mounted on the base element, each of the elements having first and second pair of longitudinally spaced apart dovetail surfaces with one of the elements having third and fourth pairs of longitudinally spaced apart dovetail surfaces.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: April 9, 1991
    Assignee: ESCO Corporation
    Inventors: Terry L. Briscoe, Paul C. Sprunger
  • Patent number: 5000267
    Abstract: A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction. The hitch includes a hydraulic piston and cylinder assembly for shifting the plow frame and tool bar about a central longitudinal axis with respect to the tractor, thereby maintaining the plow in a horizontal position even though one rear wheel of the tractor is in the plowed furrow.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: March 19, 1991
    Inventor: Danny H. Harrell
  • Patent number: 4995176
    Abstract: An assembly of wear element for installation on the wearable part of a structure engageable with abrasive material including a relatively elongated base element adpated to be secured to the wearable part and a relatively elongated wear element releasably, reversibly mounted on the base element, each of the elements having longitudinally spaced apart dovetail surfaces in one outstanding wall portion and a single surface in an opposed outstanding wall portion.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: February 26, 1991
    Assignee: Esco Corporation
    Inventors: Terry L. Briscoe, Paul C. Sprunger
  • Patent number: 4932478
    Abstract: A tooth point for earth working, particularly ripping, which includes a relatively elongated body having rearwardly projecting tongue and recess means which cooperate with complementary tongue and recess means on a ripper shank protector.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: June 12, 1990
    Assignee: ESCO Corporation
    Inventor: Larren F. Jones
  • Patent number: 4799823
    Abstract: A replaceable wear parts assembly for attachment to the plow shank of a cable laying machine is disclosed that is particularly effective in the environment of vibratory plowing action. The replaceable wear parts are preferably in the form of a shank guard and a plow point which are adapted for attachment either directly to a plow shank, or indirectly to a nose/shank weldment that is welded to the plow shank. The shank guard and plow point are compressively forced against the plow shank or the nose/shank weldment by studs that pass longitudinally through the nose/shank weldment or plow shank in a direction substantially parallel to the direction of the impact forces generated by the vibratory plowing action.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: January 24, 1989
    Inventor: Thomas D. Williams
  • Patent number: 4762184
    Abstract: An improved digging point assembly comprises a holder, a blade member and a digging tip member connected in series. The blade member is constructed such that, when partially worn, it can be used as a tip member on a fresh blade member. The tip can be allowed to wera out completely and the blade can also be allowed to wear until damage to the holder is imminent. The worn blade member is then used as a tip on a fresh blade member, and the cycle repeated.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: August 9, 1988
    Inventor: Allan J. Yeomans
  • Patent number: 4726129
    Abstract: The invention relates to a snow tiller for mounting on the rear of a track maintenance vehicle. The snow tiller comprises a tiller shaft and a tiller frame of at least triangular cross-section extending over the width of the snow tiller and having end plates for supporting the tiller shaft bolted to its lateral ends.In order to facilitate the maintenance of the snow tiller, the lateral ends of the tiller frame are provided with bars secured thereto in a V-shaped configuration. Secured to each end plate at its side facing towards the tiller frame is a pair of undercut bars in a V-shaped configuration for overlapping engagement with the bars on the tiller frame in the mounted state of the end plates. The undercut bars cooperate with a fixing bolt engaging the tiller frame to form an interlock clamp mounting arrangement.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: February 23, 1988
    Assignee: Karl Kassbohrer Fahrzeugwerke GmbH
    Inventor: Walter Haug
  • Patent number: 4716667
    Abstract: An improved excavating tooth and wear cap assembly is provided in which the front pin that interconnects the replaceable point to the adapter nose is protected from undesirable deformation by interlocking stabilizing lugs and grooves formed respectively on the wear cap and adapter base portions of the assembly. The cooperation between these lugs and grooves prevents earth forces from driving the wear cap portion of the assembly forwardly along the adapter base into the point and thereby causing the point to deform the connecting pin. Field installation of a lower wear cap portion of the assembly is facilitated by the provision of cooperating support lugs on the wear cap and shoulders on the adapter which, together with a pivotal interconnection between the adapter and wear cap, permits the lower wear cap to be hung from the adapter in a temporary support position until the point can be installed and interconnected to the wear cap to complete the assembly.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: January 5, 1988
    Assignee: GH Hensley Industries, Inc.
    Inventor: Wesley E. Martin
  • Patent number: 4606275
    Abstract: Tamping tools for mounting in a ballast tamping apparatus such as the rail-mounted Canron, Plasser and Jackson ballast tamping machines designed for tamping ballast around railroad cross ties, which tamping tools each include a shaft adapted for mounting on a reciprocating mechanism in a respective ballast tamping machine, a shaped shank extending from the shaft, a weld ring or nut seated on the shank and welded to the shaft and a tool foot having a receptacle internally configured to receive the shaped shank, with the tool foot welded to the weld ring or nut for easy replacement. A blade is provided at the extending end of the tool foot in offset relationship for contacting and tamping the ballast and in a first embodiment the blade is formed integrally with the foot, while in a second embodiment the blade is bolted to the tool foot.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: August 19, 1986
    Inventor: Michael R. Grant
  • Patent number: 4363364
    Abstract: A plow chisel having an integrated chisel point and including an elongated, arcuate shank portion formed as a curved, flat metal plate having a top surface, bottom surface and two opposed side edges. At one end, the shank portion is pointed due to convergence of the side edges. A chisel cap of pointed configuration includes a base relieved to receive the pointed end of the shank portion in a recess of complementary shape. The cap is of hard metal construction and is secured to the shank portion by welding.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: December 14, 1982
    Assignee: Adams Hard-Facing Company, Inc.
    Inventor: Halsey J. Wetmore
  • Patent number: 4155665
    Abstract: A ripper tip is detachably mounted on a wedge-shaped nose of a shank by an elongated retention apparatus. The retention apparatus comprises a resilient, expandible retainer defining a cavity therein, a lock pin partially disposed within the cavity and an elastomeric slug disposed in the cavity between the retainer and lock pin urging the retainer into bearing contact with the shank and the lock pin into bearing contact with the tip. The retainer is of U-shape section having bottom and side walls which are expanded by the slug to fill an opening formed by a wall through the shank, and also includes flanges at the upper ends of the side walls which do not expand within the opening, yet contact such shank wall.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: May 22, 1979
    Assignee: Caterpillar Tractor Co.
    Inventor: Willard O. Kaarlela
  • Patent number: 4142586
    Abstract: This tines assembly is for attachment to a drive shaft and includes a front shaft portion, a rear shaft portion connected between the front shaft portion and the drive shaft, and front and rear tines mounted in removable relation to the rear shaft portion. The front tines, front shaft and rear shaft are connected and located by a pin, and the rear tines, rear shaft and drive shaft are connected and located by a pin.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: March 6, 1979
    Assignee: Detroit Tool & Engineering Co.
    Inventor: Earl L. Miner
  • Patent number: 4062408
    Abstract: A rotary tiller tine assembly in which a main shift has an end key and a shaft extension has at one end an end socket coupled to the main shaft key and at its other end a socket which receives a plug key with which outboard tines are interlockingly engaged.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: December 13, 1977
    Assignee: Gilson Brothers Company
    Inventors: Edward W. Enters, Tommy A. Middlesworth