Caterpillar Inc.

William H Zimmerman

Thomas C Meisel

Timothy A Vik

Donovan Stuart Clarke

Michael R Theobald

Randy G Farnam

Andrea R Vernagus

Kenneth J Hoefling

Spherical mountings are useful for pivotally connecting a push arm of a blade to a track roller frame of a machine. When the blade is removed the bearing assembly must be disassembled and to reconnect the blade to the spherical mounting the bearing assembly needed to shimmed to obtain the correct gap or clearance between the bearing and the spherical mounting. The subject mounting arrangement includes a mounting assembly having a first end portion removeably connected to the push arm of a blade and a second end portion positioned around a spherical assembly and being removeably connected to a bearing assembly of the spherical assembly. This arrangement of components provides for removing the push arm of the blade from the mounting on the track roller frame without removing the bearing assembly.

Spherical mounting arrangement

A ripper carriage assembly has a transverse cross beam fixedly mounted at a central portion of the cross beam to a ripper implement support structure. The distal ends of arms extending outwardly from the central portion of the transverse cross beam are adapted for pivotal connection to a pitch control mechanism. Stress relief notches are formed in the transverse cross beam at a position between the distal ends of the arms and the central rigidly mounted portion of the beam. Energy generated as a. result of the ripper tip twisting upon impact with rock or other solid objects in hardened ground is stored in the transverse cross beam, and subsequently returned to the ripper tip to bring the tip into a desired operational orientation.

Energy storage ripping device

A dozing machine comprises a tractor having a transverse dozing blade mounted at the forward end thereof. Steering changes can made by shifting the lateral centerline of the blade laterally relative to the longitudinal centerline of the tractor. To this end, a linear actuator is connected between the blade or a blade push arm and the tractor. The actuator is extended or retracted to shift the centerline of the blade. The centerline may also be shifted by extending the length of the blade to one side of the tractor centerline. Automated methods and apparatus are disclosed which utilize blade centerline shifting to maintain a desired direction of travel or to automatically achieve any desired path. Also, sideshifting of the blade may be useful for purposes other than steering the tractor.

Method and apparatus for steering a dozing machine

This invention provides a mounting arrangement for a ripper shank that is mounted in a channel defined in a ripper frame. A pair of piston members are mounted in the frame on opposite sides of the ripper shank. The piston members are urged into engagement with the ripper shank by a biasing mechanism that is positioned between the frame and the piston members. An actuating mechanism is mounted between the frame and the piston members to disengage the biasing mechanism to allow the adjustment of the ripper shank with respect to the frame in one of an infinite number of positions.

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Edelstein, IL, United States of America

William H Zimmerman