Caterpillar Inc.

Case Corporation

Jonathan L Buelow

David P Smith

Daniel T Mather

Eric R Lauterbach

Darwin L Steffensen

Michael M Beck

Jerry L Brinkley

A sprag is disclosed. The sprag is configured to operate in a first mode allowing substantially mutual rotation of inner and outer races about an axis and a second mode allowing relative rotation between the inner and outer races. The sprag includes at least one actuator configured to selectively extend and retract and an outer surface configured to selectively lock the inner and outer races together as a function of the at least one actuator selectively extending.

Fluidly actuated sprag

A fluid motor including an inner race and an outer race is disclosed. The inner and outer races are configured to rotate about a substantially common axis. The motor also includes at least one fluid actuator configured to produce substantially linear motion as a function of selectively receiving pressurized fluid. The fluid motor also includes at least one sprag configured to rotate the inner and outer races about the axis as a function of the substantially linear motion.

Fluid motor

There is provided in accord with the present invention a work vehicle having a fluid actuated and mechanically linked attachment, which attachment is operatively connected to a valve having a control valve spool reciprocally mounted in the control valve body and having a control valve lock mounted thereon. The control valve lock comprises a rod engaged at one end with the valve spool and having a groove at the other end, with the rod maintaining a centering spring assembly in contact with the valve spool. An actuator, such as a solenoid, is mounted and orientated normal to the rod. The actuator, such as a solenoid, has a pin aligned to selectively engage the groove in the rod. The solenoid is in operative communication with a control switch to selectively operate the solenoid.

Interlock mechanism for controlling attachment to a work vehicle

Growing community of inventors

Woodridge, IL, United States of America

Jonathan L Buelow