| Patent Number |
Title Of Patent |
Date Issued |
| RE33454 |
Wear runner for excavating bucket |
November 27, 1990 |
| A wear runner for an excavating bucket which includes a plurality of base elements secured to the bucket in end-to-end relation, a runner element for each base element removably mounted thereunder by means of a rearwardly divergent dovetail. |
| RE33042 |
Excavating tooth assembly |
September 5, 1989 |
| An excavating tooth assembly including an adapter, a point equipped with rearwardly projecting tongues, and locking means including a vertical pin external of the adapter nose held in place by a shrouded spring loaded plug disposed perpendicularly to the line of mounting the point on the |
| RE32847 |
Wedge-type rope socket connection and method |
January 31, 1989 |
| A socket-wedge connection for wedge-type rope socket wherein a multi-part wedge is employed having one part collapsible, finding advantageous use, for example, in the lines employed with excavating equipment. |
| 7596895 |
Wear assembly |
October 6, 2009 |
| A wear assembly to protect the front edge of an excavating bucket, which is secure, stable, easy to use, readily manufactured, and provides increased safety, and which eliminates any need for holes to be formed in the lip. The wear assembly includes a wear member that has a pair of legs |
| 7578081 |
Wear assembly |
August 25, 2009 |
| A wear assembly for excavating equipment that includes a base, a wear part and an improved locking arrangement that provides improved stability, strength, durability, safety and ease of use. The locking arrangement includes a hammerless lock that is pivotally moved between hold and r |
| 7536811 |
Lock for securing wear parts to earth-working equipment |
May 26, 2009 |
| A lock for securing a wear part to earth-working equipment that is foldable between a retaining position to hold the wear part to the equipment and a release position that permits removal of the lock and release of the wear part from the equipment. The lock includes a retainer for re |
| 7526886 |
Wear assembly for an excavating bucket |
May 5, 2009 |
| A wear assembly for protecting the digging edge of a bucket which includes a wear member having a lock-receiving hole in one leg and an upstanding rib along the other leg. The rib extends axially along the leg to be received into a slot in a base fixed to the lip of the bucket. The rib |
| 7451558 |
Wear assembly for excavating digging edge |
November 18, 2008 |
| 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 |
| 7367144 |
Wear member for excavating equipment |
May 6, 2008 |
| A wear assembly provided with a tapered opening and a complementary tapered lock wherein the lock can be pried into and from the opening to thereby eliminate the need for hammering. The lock is formed with a body and a latch that is movable between a hold position where the latch is |
| 7299570 |
Wear assembly for an excavator |
November 27, 2007 |
| A wear assembly for attaching a wear member to a support structure that includes a wear member and a lock. The wear member includes a pair of legs to straddle the support structure, each with a hole that aligns with a hole in the support structure for receiving a lock to hold the wear |
| 7178274 |
Coupling arrangement |
February 20, 2007 |
| A coupling arrangement for securing two separable components in an excavating operation includes a wear component, a base component and a lock. The lock has a body having a configuration adapted to be received in a hole in the base component, and a rotatable locking member. The locki |
| 7174661 |
Releasable coupling assembly |
February 13, 2007 |
| 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. |
| 7171771 |
Releasable coupling assembly |
February 6, 2007 |
| A lock that includes a wedge and a spool are used to releasably secure separable components of an assembly together. 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 |
| 7165347 |
Assembly for securing a wear member to an excavator |
January 23, 2007 |
| 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 ma |
| 7144183 |
Lock with internal retainer |
December 5, 2006 |
| A locking assembly has two members which are moveable into coupling engagement with one another. The two members have lock engaging walls, and one of the members has an opening between the lock engaging walls for receiving a lock. The lock comprises a lock body and a retainer. The lock |
| 7116353 |
Digital video recording system |
October 3, 2006 |
| A digital video recording system (10) includes a video camera (12) directed at a scene of interest to continuously view the scene and generate video images (F) of the scene. An image processor (14) is configured to compare the video image (F) with a previously established reference i |
| 7100315 |
Point and adapter assembly |
September 5, 2006 |
| A wear assembly including an adapter, a wear member, and a lock to secure the wear member to the adapter, wherein the adapter and wear member include at least one rail and corresponding groove along the nose and socket connection that are oriented at the same general inclination as o |
| 7080470 |
Wear assembly for excavator digging edge |
July 25, 2006 |
| 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 |
| 6993861 |
Coupling for excavating wear part |
February 7, 2006 |
| A wear assembly provided with a tapered opening and a complementary tapered lock wherein the lock can be pried into and from the opening to thereby eliminate the need for hammering. The lock is formed with a body and a latch that is movable between a hold position where the latch is |
| 6986216 |
Wear assembly for the digging edge of an excavator |
January 17, 2006 |
| 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 l |
| 6735890 |
Wear assembly |
May 18, 2004 |
| 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.The nose and socket include complementary rails and grooves that vertically diverge as they extend from the front of the nose. The lock ca |
| 6729052 |
Assembly for securing an excavating tooth |
May 4, 2004 |
| 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 ma |
| 6705031 |
Dragline apparatus and bucket |
March 16, 2004 |
| A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end. |
| 6578294 |
Dredge cutterhead |
June 17, 2003 |
| A dredge cutterhead has a plurality of helical arms interconnecting a hub and a ring. Each of the arms has a front leading edge for attachment of cutting teeth. In one aspect, each of the arms has a trough portion, and the arm is shaped such that dredged material is directed toward the r |
| 6550163 |
Dragline apparatus and bucket |
April 22, 2003 |
| A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end. |
| 6446366 |
Dragline apparatus and bucket |
September 10, 2002 |
| A dragline apparatus has an independently controlled front hoist line and rear hoist line. The front hoist line is connected to the forward end of the bucket, and the rear hoist line is connected to the rearward end. |
| 6030143 |
Locking pin for excavating equipment |
February 29, 2000 |
| An improved locking pin for locking together two pieces of equipment through aligned locking apertures. The pin comprises a steel casing, a steel insert and an elastomer member. The two steel parts assemble together in a particular sequence and are adjusted so that when completely as |
| 5992061 |
Dragline bucket dump compensator |
November 30, 1999 |
| A hoisting assembly for use with a dragline bucket that includes a compensator for generally stabilizing the attitude of the bucket. The compensator is operably coupled to the lift, hoist and dump lines. The connector for the lift line(s) defines a fulcrum about which the compensator |
| 5970636 |
Dump block |
October 26, 1999 |
| An integral dump block for use in a dragline bucket that comprises a sheave to movably support a dump line, a central pin rotatably supporting the sheave, and a housing to couple the pin to lift lines. Bearings are disposed within the sheave and each side of the housing for receiving the |
| 5937550 |
Extensible lock |
August 17, 1999 |
| An extensible lock for securing a wear member to a support structure of an excavator. The lock includes a base and a body which are extensible and retractable to hold and release the wear member, respectively. The body includes an inclined bearing face which engages a complimentary beari |
| 5730430 |
Spring unit for use in a pivot pin assembly |
March 24, 1998 |
| A spring unit for installation in a pivot pin assembly. The spring unit including a pair of disc springs each with an axially centered aperture and each with, when in an uncompressed condition, a concave side and a convex side. A retaining element, such as an adhesive, retains the disc |
| 5709043 |
Excavating tooth |
January 20, 1998 |
| An excavating tooth for attachment to the digging edge of excavating equipment includes a wear member provided with bearing faces in a socket which extend substantially parallel to the longitudinal axis of the tooth. The bearing faces are formed to widen significantly as they extend |
| 5666748 |
Wear cap and components useable therewith |
September 16, 1997 |
| A wear cap for protecting the wearable surface of a structural member includes an outer wear surface and an inner mounting surface. The inner mounting surface is provided with a plurality of tabs and a lock which cooperate to securely attach the wear cap to the wearable surface. The |
| 5653048 |
Wear assembly for a digging edge of an excavator |
August 5, 1997 |
| A wear assembly for attaching to a digging edge of an excavator includes a boss, a wear member and a lock. The boss is fixed to the excavator and defines a T-shaped coupling structure. The adapter includes a rearwardly extending mounting leg and a forwardly extending working end. The leg |
| 5469648 |
Excavating tooth |
November 28, 1995 |
| An excavating tooth for use on a wide variety of excavating equipment is comprised of a point, an adapter and a sandwich lock pin. The pin includes a rigid casing and a plurality of independently depressible protrusions. One of the protrusions resiliently engages a face defined on the no |
| 5382110 |
Quick coupling device |
January 17, 1995 |
| A quick coupling device adapted for mounting a tool to a boom of a carrier includes a coupling structure defining at least one notch and a cam assembly. The cam assembly includes a channel having an open end and a seating wall. The cam assembly is rotatable between an open position and a |
| 5325615 |
Attachments for excavating buckets |
July 5, 1994 |
| An attachment, adapted to mount to the front edge of an excavating bucket, includes a working structure and a base. The front edge of the bucket defines an inner surface, an outer surface, and a beveled surface oriented at an inclination to the inner and outer surfaces. The base of the |
| 5305872 |
Chain |
April 26, 1994 |
| A chain for use primarily in conveyor systems includes a plurality of male and female links pivotally coupled together. The female link includes a generally I-shaped body segment and a pair of bifurcated arms at each end. The arms are asymmetrically formed so that one arm defines a stop |
| 5269382 |
Impact device |
December 14, 1993 |
| An impact device for breaking up and separating hard material comprises an actuating system for providing a faster cycle rate as well as an increased impact force. More specifically, the device includes a pair of pistons movably arranged in a cylinder to cooperate in compressing the gase |
| 5241765 |
Lock assembly for wearable structure |
September 7, 1993 |
| 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. |
| 5188680 |
Method of making tooth point |
February 23, 1993 |
| A method of making a tooth point and product wherein a tubular blank of alloy steel is heated, shaped at one end to provide a box section and shaped at the other end to provide a blade made up of two layers of steel forged together. |
| 5183316 |
Mounting bracket for a working device |
February 2, 1993 |
| A mounting bracket for mounting a working device to a boom of a carrier includes a base, flanges for attaching the bracket to the boom, and ears for attaching the working device to the bracket. The ears each define a hole for pivotally coupling the working device thereto for free pivotal |
| 5152088 |
Excavating tooth point and method of replacement |
October 6, 1992 |
| A novel tooth point, locking pin and method of replacing a worn point wherein the point is held in place by a pin having a resilient laterally outwardly extending projection received in a recess provided in the inner surface of an L-shaped rearwardly extending tongue on the point, the pi |
| 5096247 |
Hydraulic snubber for grapple equipped hydraulic fluid supply system |
March 17, 1992 |
| A hydraulic supply system for a snubber including spaced check valves in the snubber housing supply passage and a relief passage connected to the supply passage between the check valves. |
| 5088214 |
Excavator wear edge |
February 18, 1992 |
| A replaceable wear edge for the forward edge of an excavator such as the lip or wing and which includes a generally U-shaped wear member equipped with a generally T-shaped slot engageable with a conforming T-shaped boss on a confronting surface on the excavator, the wear member upper sur |
| 5084990 |
Dragline bucket and method of operating the same |
February 4, 1992 |
| A dragline bucket and method of operating a dragline bucket wherein a reverse V configuration of teeth is employed to eliminate slewing, i.e., sideways movement when encountering an off-center obstacle. |
| 5074062 |
Method of replacing a worn excavating tooth point |
December 24, 1991 |
| A method of replacing a worn point of an excavating tooth wherein the point is held in place by a pin lock including a shearable top flange and torque-resisting, forwardly extending rib, the method including exerting a downward force on the pin lock to shear the top flange while the forw |
| 5069871 |
Method of using an austenitic steel alloy as a wear part subject to gouging abrasion type metal |
December 3, 1991 |
| A method of producing a crusher wear part and the like subject to gouging abrasion type metal loss wherein the part is made of a modified austenitic (Hadfields) manganese steel having an Aluminum/Carbon ratio of 1.0 to 1.7, the casting being heat treated by heating to 2000.degree.-2050.d |
| 5068986 |
Excavating tooth point particularly suited for large dragline buckets |
December 3, 1991 |
| An excavating tooth point having a pin receiving opening, a cavity in the point in communication with the opening and a resilient lock for the pin in the cavity. |
| 5065824 |
Hydraulically powered repetitive impact hammer |
November 19, 1991 |
| An impact hammer according to this invention has a frame to house its actuating mechanism and to support a working impact tool which is to receive a sharp impact blow from the impact hammer and deliver it to a structure or formation that is to be pierced or fragmented. The impact too |
