Abstract: A wear member for excavating equipment and which is particularly suited for a dredge cutterhead that includes a curved abutting surface that abuts a complementary curved bearing surface on the base. The curved bearing surfaces are able to maintain substantially full contact with each other under transverse loading. The base and adapter further having a plurality of complementary stops for resisting relative movement between them.

Abstract: A universal digging tooth attachment apparatus adapted to be secured to a forward edge of a bucket lip of an earth moving implement. The universal digging tooth attachment has a first element with an elongate section defining a first generally planar surface for abutting and engaging along the length thereof with one face of the bucket lip of the earth moving implement and a second element. The second element has an elongate section defining a second generally planar surface for abutting and engaging along the length thereof with the bucket lip of the earth moving implement directly opposite from the elongate section of the first element. One of the first and second elements has an earth engaging tooth projecting therefrom. A slip joint operably connects the first and second elements to each other to allow for adjustment of a distance between the first and second planar surfaces to accommodate attachment of the digging tooth to implements having bucket lips of differing thicknesses.

Abstract: The bottom lip of a ground engaging bucket structure useable in the earth moving industry has a front edge that is transverse to the parallel top and bottom sides of the lip and extends from the top side of the lip to the bottom side thereof. A flush-mounted adapter has a top leg that longitudinally extends transversely along the top side of the lip, with a nose portion of the adapter projecting forwardly beyond the lip. A weld is formed in a groove in an underside portion of a mounting section of the adapter and intersecures the mounting section to the front lip edge in a manner that the weld is stressed substantially entirely in a shear mode in response to an upwardly directed operational load on the adapter nose.

Abstract: A wear assembly for excavating equipment which includes a wear member and a base each with upper and lower stabilizing surfaces that are offset and at overlapping depths to reduce the overall depth of the assembly while maintaining high strength and a stable coupling. The nose and socket each includes a generally triangular-shaped front stabilizing end to provide a highly stable front connection between the nose and wear member for both vertical and side loading. The lock is movable between hold and release positions to accommodate replacing of the wear member when needed, and secured to the wear member for shipping and storage purposes.

Abstract: A wear assembly for securing a wear member to excavating equipment that includes a base having a nose and a wear member having a socket. The nose and socket are each provided with one or more complementary stabilizing surfaces in central portions thereof.

Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.

Abstract: The device is characterized in that the nose of the tooth-carrier has a general structure in which two end regions thereof, one corresponding to the area of junction of the said nose with the body of the tooth-carrier and the other to the free end of the tooth-carrier, assume in cross-section a dovetail structure, the dovetail at the first end region being inverted compared to the dovetail at the second end region, the cross-section of the end projection of the nose of the tooth-carrier being constant and the upper face of junction of the said projection with the base of the tooth-carrier assuming a curved structure with the convexity directed outwards, the lateral faces of the nose of the tooth-carrier assuming a structure of flat facets, one of them carrying in proximity to the junction with the body of the tooth-carrier a substantially vertical indentation for the coupling of the retaining cotter pin.

Abstract: An assembly for mounting an excavating tooth particularly suited for a dredge cutterhead includes a base, an adapter, and a lock. The base includes a convex, curved bearing surface that abuts a concave, curved bearing surface on the adapter. The curved bearing surfaces are able to maintain substantially full contact with each other under transverse loading.

Abstract: Telescoped excavating support and wear members are releasably retained in their telescoped relationship by a connector pin assembly removably received in aligned connector openings in the members. A body portion of the pin assembly blocks removal of the wear member from the support member, and a lock member portion of the assembly is rotatable relative to the body, toward and away from a locking orientation, to releasably lock the body within the connector openings. A resilient detent member carried by the lock member slidingly and deformably engages a polygonally shaped interior side surface section of a body passage that rotatably receives the lock member, the detent member yieldingly resisting rotational movement of the lock member away from its locking orientation.

Abstract: A digging tooth adapted to extend forward from a leading edge of a bucket or the like. The digging tooth has a forward end, with an edge extending thereacross, and a rear end. The digging tooth further includes wing structure preferably formed integral with the digging tooth and extending from a surface on the tooth so as to provide the bucket with enhanced ground penetration capability while concomitantly shielding ground engaging components disposed rearwardly of a rear end of the digging tooth against wear and, thus, potentially extending the useful wear life of such components.

Abstract: A wear assembly that includes a wear member and a boss to define an opening for receiving a lock forward of the front edge face of the lip which can mount the wear member in a stable and balanced manner without a through-hole in the lip. The wear member includes an aperture and a rib to define bearing faces on opposite sides of a central plane of the lip. The boss includes rails to hold the wear member in place, and a brace at the rear end, which supports the rails on the boss, abuts the rear of the wear member to reduce the loading on the lip, and deflects earthen material away from the wear member under reverse loading.

Abstract: More particularly, this invention provides an excavating lip assembly including a lip. The lip has a surface, and the lip assembly further includes a wear member placed over the lip surface, the wear member having an inner surface, and the inner surface having a bolt securing indentation therein. The lip assembly further includes a holding element in the lip surface, the holding element having an opening there through. The lip assembly also includes a connecting bolt having an end received and held in the indentation, the connecting bolt also being received in the holding element opening. The lip assembly also includes a nut removably received on an end of the bolt to retain the bolt in the holding element opening. More particularly, the connecting bolt is a U-bolt, and wherein the indentation is formed by a half circle element extending from the shroud inner upper surface. The half circle element is cast in the wear element upper surface, and the holding element is a rectangular bar welded to the lip.

Abstract: A bucket tooth capable of preventing a bolt from being loosened during operation is provided. In order to allow the bucket tooth to generate a resilient return force after attachment, a warp is caused by resilient deformation so that a face on the bucket lip side becomes a concave face. As another means, a spot facing portion is formed around a bolt hole into which a fastening bolt is inserted, on the side facing the bucket lip.

Abstract: A mounting system for a digging tooth of an excavator bucket has an adaptor nose with upper and lower bearing surfaces tapering convergently towards a free end thereof. A digging tooth having a convergently tapering socket locates on said adaptor nose with a screw-threaded connector extending, in a direction parallel to a longitudinal axis of said tooth, between a connector abutment on the adaptor nose and a tooth coupling on the tooth.

Abstract: The device is characterized in that the nose of the tooth-carrier has a general structure in which two end regions thereof, one corresponding to the area of junction of the said nose with the body of the tooth-carrier and the other to the free end of the tooth-carrier, assume in cross-section a dovetail structure, the dovetail at the first end region being inverted compared to the dovetail at the second end region, the cross-section of the end projection of the nose of the tooth-carrier being constant and the upper face of junction of the said projection with the base of the tooth-carrier assuming a curved structure with the convexity directed outwards, the lateral faces of the nose of the tooth-carrier assuming a structure of flat facets, one of them carrying in proximity to the junction with the body of the tooth-carrier a substantially vertical indentation for the coupling of the retaining cotter pin.

Abstract: An assembly for mounting an excavating tooth particularly suited for a dredge cutterhead includes a base, an adapter, and a lock. The base includes a convex, curved bearing surface that abuts a concave, curved bearing surface on the adapter. The curved bearing surfaces are able to maintain substantially full contact with each other under transverse loading. The undersurface of the base is formed with a groove to improve the strength and durability of the weld.

Abstract: A lock that includes a wedge that is used to releasably secure separable components of an assembly together. The wedge can be used with a spool. The wedge and spool are threadedly coupled together to drive the wedge into and out of an opening in the assembly without hammering or prying. The direct coupling of the wedge and spool eliminates the need for bolts, washers, nuts and other hardware so as to minimize the number of parts. As a result, the lock is inexpensive to make, easy to use, and unlikely to become inoperative because of lost or broken parts or due to fines or other difficulties encountered in harsh digging environments. Further, the wedge can be driven into the assembly to provide the degree of tightness necessary for the intended operation and/or to re-tighten the assembly after incurring wear during use. A latch assembly is preferably provided to securely hold the wedge in place and avoid an undesired loss of parts during use.

Abstract: A wear assembly for attaching wear members to a lip of an excavator includes a wear member, a boss and a lock. The lip includes an inner face, an outer face, a digging edge and a series of through-holes spaced rearward of the digging edge. The bosses are each fixed to a face of the lip at a position rearward of the through-holes. The wear members each include slots to receive the boss adjacent their rear ends, and openings for receiving the locks at a position forward of the bosses. The openings are aligned with the through-holes in the lip. The lock includes a wedge and spool arrangement.

Abstract: A rotatable connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of the pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to captively and releasably retain a replaceable excavating tooth point on the nose. The configuration of the opposite pin ends permits the overall pin assembly to remain in the adapter nose during removal of the point and replacement thereof, with the pin being rotatable between a first orientation in which its ends permit removal of a point from the nose, or installation of a point on the nose, and a second orientation in which the opposite pin ends block removal of the point from the adapter nose.

Abstract: A locking arrangement (1) for releasably locking a wear tooth (2) to a tooth adaptor (3); the wear tooth (2) being defined by a top wall, a bottom wall and a pair of opposed sidewalls, each sidewall having an elongate slot (5) therethrough; the tooth adaptor (3) being of generally complementary shape to receive said wear tooth (2), and having an elongate cavity (6) on each opposed side thereof adapted to substantially align with a respective slot (5) of said wear tooth (2) when said wear tooth is installed on said tooth adaptor; said slot having a first inner surface, the locking arrangement including a retaining means (4) to be installed in each aligned cavity and slot to releasably lock said tooth (2) to said adaptor (3), the retaining means (4) including a pair of engaging retaining pieces (7, 8) adapted to fit in end-abutting relationship when in said locked position, whereby, an arcuate force is applied to at least one of said pieces (7, 8) to release said pieces from said locked position.

Abstract: The present invention is directed to a corner adapter for attaching a ground engaging tooth to an implement bucket. The corner adapter includes a nose portion, a bottom strap and a top strap. The nose portion and the bottom strap are aligned along substantially common longitudinal axes, the top strap is aligned along a longitudinal axis that defines an offset angle. A cutout portion and gusset are provided in the top strap to permit the corner adapter to engage the side wall.

Abstract: A wear member for use with an adapter of an earthworking implement is provided. The wear member comprises a body having a pocket adapted to receive the adapter. The pocket has a mouth, a frontal portion, a top wall, a bottom wall, and a pair of side walls, and each top wall and bottom wall are conjoined to a respective side wall by a curvilinear corner each having a radius increasing in size from said frontal portion to the mouth.

Abstract: An excavator tooth system comprises a mounting nose having a projecting spigot and a wear member (12) having at one end a socket (18), the socket (18) being defined by spaced side walls and upper and lower walls converging from a rearwardly facing socket opening to a forward end of the socket. Each of the upper and lower walls comprises a forward bearing face (8a) and a rear bearing face (7a) separated by a forwardly convergent intermediate face. The front and rear bearing faces (8a,7a) are substantially parallel to a longitudinal axis (50) of the wear member and engage corresponding bearing faces (8,7) in said spigot.

Abstract: The device is characterized by the coupling protuberance of the tooth in a zone which is adjacent to the base of the tooth and is comprised of side faces which are both inclined from said base towards the axis of the piece and from the lower edge inwardly, and also presenting an upper face inclined from top to bottom and a lower planar face, continued into a second zone which presents additionally planar faces extending from the lower edges of the protuberance and showing an inward inclination; the coupling protuberance is terminated by a posture section of which the side faces extend from an upper planar face which is parallel to the piece axis, and inclined inwardly and joining a unique lower face which is also planar and parallel to the piece axis and terminated at the planar extremity of the protuberance which is perpendicular to the piece axis.

Abstract: A rotatable connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of the pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to captively and releasably retain a replaceable excavating tooth point on the nose. The configuration of the opposite pin ends permits the overall pin assembly to remain in the adapter nose during removal of the point and replacement thereof, with the pin being rotatable between a first orientation in which its ends permit removal of a point from the nose, or installation of a point on the nose, and a second orientation in which the opposite pin ends block removal of the point from the adapter nose.

Abstract: A rotatable connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of the pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to captively and releasably retain a replaceable excavating tooth point on the nose. The configuration of the opposite pin ends permits the overall pin assembly to remain in the adapter nose during removal of the point and replacement thereof, with the pin being rotatable between a first orientation in which its ends permit removal of a point from the nose, or installation of a point on the nose, and a second orientation in which the opposite pin ends block removal of the point from the adapter nose.

Abstract: An assembly for mounting an excavating tooth particularly suited for a dredge cutterhead includes a base, an adapter, and a lock. The base includes a convex, curved bearing surface that abuts a concave, curved bearing surface on the adapter. The curved bearing surfaces are able to maintain substantially full contact with each other under transverse loading.

Abstract: Fabricated excavator teeth comprising projections cut from hard, highly abrasion steel plate or bar stock, for example having a Brinell Hardness exceeding 225, and as high as 400 or higher, welded to cores through which the teeth may be connected with excavator apparatus, including any kind of digging implement, such as buckets and ripping arms, and any kind of excavating machine, such as power shovels, backhoes and dredges.

Abstract: A tooth block 2 to be attached to a bucket 1 for a shovel machine, wherein the tooth block 2 is removably attached to the bucket 1 through an adapter member 3 provided at the lip of the bucket, being projected therefrom, and the tooth block 2 is provided with a masking portion 4 for masking the gap produced between the lip of the bucket 1 and the base of the tooth block 2 when the tooth block 2 is attached to the lip of the bucket 1, the masking portion 4 being provided outside the base of the tooth block 2 such that the masking portion 4 is overlapped with the outer surface of the lip of the bucket 1, and is connected and fixed to the bucket 1 through a fixing portion 5.

Abstract: The present invention is directed to a corner adapter for attaching a ground engaging tooth to an implement bucket. The corner adapter includes a nose portion, a bottom strap and a top strap. The nose portion and the bottom strap are aligned along substantially common longitudinal axes, the top strap is aligned along a longitudinal axis that defines an offset angle. A cutout portion and gusset are provided in the top strap to permit the corner adapter to engage the side wall.

Abstract: This engagement system for digger teeth, in particular a tooth from which there extend in the axial direction two rectilinear lugs which, being noticeably parallel to one another, emerge cantilevered from the mouth of a central housing and complement respective rectilinear, open recesses which are provided, also in the axial direction, on an adapter member, consisting in that the straight section of each of the rectilinear lugs of the tooth member, which is concave in one part and substantially complements the convex profile of the back of the rectilinear recesses of the adapter, has two end sections which meet in a convergent fashion on an intermediate section differentiated from the afore-mentioned sections and impinge thereon at a angle of between approximately 10° and 40°.

Abstract: An excavating bucket assembly for excavation apparatus that does not use pins to connect teeth to adaptors on the excavation bucket. Each adaptor includes a receiving portion defined therein that is at least partially defined by an abutment wall. Each tooth includes an interference portion. The connection system includes a biasing portion adjacent the abutment wall and a locking portion adjacent the biasing portion. The locking portion includes a locking section and an interference section that engages the interference portion of its respective tooth. The locking section and the interference section are capable of movement relative to one another to thereby couple the tooth to the adaptor. The locking section included at least one biasing plunger that engaged a corresponding biasing pin within the biasing portion when the connection system is in use.

Abstract: A bucket tooth capable of preventing a bolt from being loosened during operation is provided. In order to allow the bucket tooth to generate a resilient return force after attachment, a warp is caused by resilient deformation so that a face on the bucket lip side becomes a concave face. In addition, a spot facing portion is formed around a bolt hole into which a fastening bolt is inserted, on the side facing the bucket lip.

Abstract: A compactor tooth has a replaceable wear tip mounted to a mounting block carried on the cylindrical exterior surface of a landfill-compactor wheel of a compactor machine. The mounting block has an external surface formed to engage a complementary internal cavity of the wear tip and includes a pair of circumferentially-spaced sides oriented not more than 5 degrees from perpendicular to the cylindrical exterior surface of the wheel. The replaceable tip has a body with an exterior ground-engaging surface, a mounting end and a mounting-base receiving cavity opening through the mounting end. The cavity is configured to receive the mounting block thereinto and has a pair of circumferentially-spaced side surfaces configured to be in close abutting relationship to a respective one of the circumferentially-spaced sides of the mounting block.

Abstract: The device is characterized in that the nose of the tooth-carrier has a general structure in which two end regions thereof, one corresponding to the area of junction of the said nose with the body of the tooth-carrier and the other to the free end of the tooth-carrier, assume in cross-section a dovetail structure, the dovetail at the first end region being inverted compared to the dovetail at the second end region, the cross-section of the end projection of the nose of the tooth-carrier being constant and the upper face of junction of the said projection with the base of the tooth-carrier assuming a curved structure with the convexity directed outwards, the lateral faces of the nose of the tooth-carrier assuming a structure of flat facets, one of them carrying in proximity to the junction with the body of the tooth-carrier a substantially vertical indentation for the coupling of the retaining cotter pin.

Abstract: An assembly for mounting an excavating tooth particularly suited for a dredge cutterhead includes a base, an adapter, and a lock. The base includes a convex, curved bearing surface that abuts a concave, curved bearing surface on the adapter. The curved bearing surfaces are able to maintain substantially full contact with each other under transverse loading.

Abstract: A mounting system for a digging tooth of an excavator bucket has an adaptor nose with upper and lower bearing surfaces tapering convergently towards a free end thereof. A digging tooth having a convergently tapering socket locates on said adaptor nose with a screw-threaded connector extending, in a direction parallel to a longitudinal axis of said tooth, between a connector abutment on the adaptor nose and a tooth coupling on the tooth.

Abstract: A wear assembly includes an adapter with a nose, a wear member with a socket to receive the nose, and a lock to secure the wear member to the adapter.

Abstract: An excavating adapter/tooth point assembly has an interfit configuration in which the front end surface of the adapter base has a curved front surface portion that slidingly and complementarily engages a facing curved rear end surface portion of the tooth point. The adapter nose received in the tooth point pocket is somewhat smaller in cross-section that the pocket to permit a limited vertical rocking movement of the point relative to the adapter nose, about a connector structure captively retaining the point on the adapter nose, while transferring rearwardly directed excavating loads on the point to the curved sliding adapter/point interface area. Top and bottom sides Of a rear end portion of the point have curved ear projections which extend rearwardly and outwardly along the adapter base and function as built-in wear guards that protect underlying surface portions of the adapter base.

Abstract: A tip of a tooth assembly for a ground engaging implement or bucket is constructed with a necked down portion to provide the tip with a reduced cross-section sufficient to cause the tip to fail at the necked down portion when the tip is subjected to a sufficiently large vertical load in order to prevent the breakage of an adapter on which the tip is mounted. The tip also has side ears with side surfaces that are disposed at a slight angle relative to their mating side surfaces of the adapter ear pockets so as to diverge away from the side surface of their respective ear pocket. This construction prevents the distal ends of the ears from contacting the side surfaces when the tip experiences high side or lateral loads in order to alleviate lateral loads from being exerted on the distal ends of the ears through lateral contact with the adapter.

Abstract: A tooth assembly for an excavating machine includes an adapter having first and second surfaces and first and second sides. The first surface of the adapter is generally tapered and converges toward a first end of the adapter. A tooth point is coupled with the adapter at the first end of the adapter, and the tooth point has a contact edge opposite the first end of the adapter. The tooth point also includes first and second sides, the first side having a slot adapted to receive a non-rotation ridge of a retainer pin to prevent rotation of the retainer pin with respect to the tooth point. A second end of the adapter is adapted to be removably coupled with a tooth horn. The tooth assembly further includes a central portion extending generally from the first side of the adapter to the second side, the central portion defining a central bore.

Abstract: The invention relates to a ground-engaging tool which is connected or connectable to a lip on an excavation bucket. The ground-engaging tool includes a tool body which is formed from a material having a hardness of approximately 40 Rockwell C hardness and which defines a contact surface at one end for receiving impacts in use. Extending through a substantial portion of the tool body from the contact surface is a hardened core formed from a material having a hardness which is at least 20% greater than the hardness of the material of the tool body for transferring impacts through the tool body.

Abstract: Improvements in material-to-material connections are provided. For example, metal-to-metal connections are improved, such as the interface connection between a dental handpiece bur tube (10) and a component such as a bearing (12). At least one marking, such as a laser marking (20) is provided such that an amount of excavate material (21) is excavated from the marking (20). When a component such as a bearing (12) is positioned upon the bur tube (10), a portion of the excavate material (21) is physically impinged between the two components (10, 12) filling any spaces or gaps therebetween.

Abstract: A tool body is cold formed by inserting a blank into a die which defines a portion of the outer surface of the tool body after which a punch applies an impact to the blank causing the outer surface of the blank to conform to the contour of the die. The completed tool has an elongate hub with a cylindrical forward portion having a diameter sized to rotatably fit within the bore of a tool holder and a rearward portion with a diameter a little less than the that of the forward portion. The smaller diameter rearward portion facilitates the insertion and alignment of the tool in the tool holder.

Abstract: The present disclosure relates to a cutting tooth for a trencher chain. The tooth includes a base portion aligned along a first plane. The base portion includes structure for allowing the cutting tooth to be connected to the trencher chain. The tooth also includes a distal portion that is generally obliquely aligned with respect to the first plane. A curved transition is located between the distal portion and the base portion. The curved transition curves away from the first plane and at least partially forms a cupped portion that extends from a leading end to a trailing end of the cutting tooth. The tooth also includes a hardened tip positioned at a region of the leading end that is located farthest from the first plane. The leading edge includes more than one effective configuration.

Abstract: A tooth cap for construction machinery having a chisel-shaped body formed with a socket and a wedge-shaped portion extending from the socket and having a pair of mutually converging working flanks, at least one of the working flanks being formed with a plurality of ribs.

Abstract: A tooth assembly for an excavating machine includes an adapter having first and second surfaces and first and second sides. The first surface of the adapter is generally tapered and converges toward a first end of the adapter. A tooth point is coupled with the adapter at the first end of the adapter, and the tooth point has a contact edge opposite the first end of the adapter. The tooth point also includes first and second sides, the first side having a slot adapted to receive a non-rotation ridge of a retainer pin to prevent rotation of the retainer pin with respect to the tooth point. A second end of the adapter is adapted to be removably coupled with a tooth horn. The tooth assembly further includes a central portion extending generally from the first side of the adapter to the second side, the central portion defining a central bore.

Abstract: A system for rapid and easy replacement of sacrificial machine parts, utilizing an adapter having a slot and a retainer pin fitted with at least one spring-loaded ball bearing suitable for engaging the slot when the retainer pin is inserted into the adapter.

Abstract: A multipiece excavating tooth assembly including an adapter, a digging or excavating tooth, and retaining pin structure for interconnecting the adapter and tooth in operable combination relative to each other. The tooth and adapter have a uniquely configured interface or conjuncture therebetween. Moreover, the conjuncture between the digging tooth and adapter is configured to advantageously orientate the retaining pin structure to avoid those problems inherent with conventional vertical and horizontal pin systems.

Abstract: Coupling for the teeth of excavators and the like.