Esco Corp.

Bucyrus Blades, Inc.

Frederick C Hahn

Larren F Jones

Robert K Emrich

William R Barber, Jr

David A Hampel

William A Fewless

Andrew H Ulven

Kirk E Yoresen

Michael J Secrist

James W Huiras

Bucket tooth

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.

Method of making tooth point

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 pin having an elastomeric core within a steel jacket.

Excavating tooth point and method of replacement

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 forwardly extending rib guides the pin lock downwardly and out of locking engagement with aligned slots in the tooth adapter nose and point rearwardly extending ear, removing the worn point and installing a new point along with a new pin lock including a top flange and forwardly extending rib.

Method of replacing a worn excavating tooth point

A locking device for an excavating tooth, where the tooth has vertically aligned openings for the receipt of the locking device, which includes a relatively elongated pin having a reduced diameter central cylindrical portion and a basket spring mounted and substantially surrounding the cylindrical portion to provide a ball and socket-like connection between the lock and the tooth.

Excavating tooth having a lock including a basket spring

An excavating tooth point having a socket adapted to receive the nose of an adapter, the point being equipped with vertically alinged pin openings and with each pin opening having a recess extending around the pin opening in the socket interior, the recess being defined by a horizontal wall extending from the rear of the point forwardly and merging with a vertical wall so as to provide clearance for a basket spring flange and further including a sloping surface to accommodate the tang of a wear cap.

Excavating tooth point for use with basket spring retainer

A locking device for a Whisler style adapter, which has upper and lower legs flanking an excavator lip having aligned openings and which are adapted to receive a wedge and C-clamp lock, the lock including a C-clamp and cooperating wedge which are spaced apart, and interposed therebetween is a spring loaded keeper member so as to permit movement of the adapter relative to the lip under an applied load.

Locking device for whisler type adapter

A mechanically attached conveyor flight including a generally rectangular elongated metal body having a notch in the top, front and rear walls for the receipt of a chain link, cavity and recess means flanking the link receiving notch for the mounting of a locking plate, threaded lock and keeper for two stage disassembly and flight removal without the need of welding while providing a rugged, reliable installation.

Flight for link chain conveyor

An excavating tooth especially suited for trenching and the like wherein relatively smaller teeth are employed, the tooth incorporating a dual lock utilizing helical thread means and snap-in, detent-like means operative upon the conclusion of rotatable engagement of the tooth parts.

Excavating tooth system

A two-piece cutting edge construction wherein a plurality of adapters are mounted on the mold board each having releasably locked thereto a cutting edge; the sidewalls of the adapters and cutting edges being recessed for the receipt of longitudinally (forwardly/rearwardly) stabilizing pins; the lock for releasably coupling the cutting edge to the adapter including two legs resiliently inner connected by a compression spring with the lock being insertable and removable by forces extending transversely of the forward/rearward mounting and unmounting direction of the cutting edge.

Two piece cutting edge construction

A mounting and method for an excavating implement embodying a shank positioned within a recess, the shank and recess being equipped with confronting spherical zonal walls and the shank and recess at the apices thereof being equipped with spherical segmental walls, the shank and recess between the two sets of spherical walls providing a gap into which thermosplastic material is introducible to provide a superior and stress transmitting fit.

Mounting for excavating implement and method

An excavating tooth including an adapter, a wear cap for the adapter and a point in which the point and adapter have primary cooperating stabilizing surfaces and in which the point and wear cap are equipped with inter-engaging flanges to provide secondary stabilizing surfaces.

Excavating tooth

An excavating tooth wherein the coupling between the point and the adapter is achieved through generally helical thread means with an external lock to prevent removal by reverse rotation relative to the direction of the helical thread means.

A C-clamp and wedge for releasably locking a slip-over adapter to the lip of a shovel dipper or like piece of excavating equipment wherein the serratons on the wedge are interlocked with serrations on a resilient lock member received within the clamp and uniquely stabilized by confining sidewalls on the clamp.

Locking device for excavating equipment

A releasable lock for an excavating tooth employing a pin and plug wherein each of these elements is equipped with a plurality of angularly related planar surfaces arranged to provide alternating crests and valleys.

Growing community of inventors

Aloha, OR, United States of America

Frederick C Hahn