Clark Equipment Compnay

Verne C Watts

Wally L Kaczmarski

Charles E Deyo

Orlan J Loraas

David S Majkrzak

Scott B Jacobson

Henry J Weber

Lonnie D Hoechst

James E Asche

Corwin E Waswick

Rae Dell Braaten

Patrick M Cronin

Curtis W Vosberg

Dean A Eggena

Edward A Larson

James R Christensen

A mounting device for securing a grapple tooth bar to a loader bucket or fork includes at least one guide arm rotatably secured to the loader bucket or fork and having a distal end. A grapple tooth bar mounting bracket is attached to the distal end of the guide arm where the grapple tooth bar positions within the grapple tooth bar mounting bracket. The grapple tooth bar is removably secured to the grapple tooth bar mounting bracket with at least one securing mechanism such that mounting device can be mounted to loader buckets or forks of varying widths and can accept grapple tooth bars of various lengths.

Attachment device for a loader bucket or fork

A hydraulic circuit for a wood chipper attachment for a skid steer loader provides power to both a motor for driving a chipper wheel and a motor for driving a feed roller. A priority flow valve is provided to supply priority of flow to the chipper motor. As pressure increases on the chipper motor, the output from the skid steer loader pump reduces and the priority flow valve acts to reduce flow to the feed motor to reduce the infeed speed. The wood chipper is adapted to be mounted on a skid steer loader and utilize the hydraulic power source from the loader power source. A separate relief valve for the chipper wheel motor is set to relieve pressure if the chipper wheel motor stalls at a lower pressure than the relief valve for the hydraulic system on the skid steer loader so that the feed motor will have sufficient pressure for reversing the feed wheel.

Feed control hydraulic circuit for wood chipper attachment

A rotary mower is mounted onto a skid steer loader through a four bar linkage on each side of a mower housing. The linkage is arranged to pivot relative to a mounting bracket on the skid steer loader and relative to a mower housing, with differential lengths between upper and lower sets of links of the four bar linkage. The upper link on each side of the mower is slidably connected to the mower housing to permit the mower housing to pivot a limited amount about a traverse axis during normal operation. The links include stop members that engage when the mower is raised a selected amount to stop relative movement between the links and also to shut off power to the motor driving the mower. The forward end of the housing has depending chains mounted with a channel and providing a shield.

Four bar linkage mounting for mowers

An earth auger has a center shaft and a helical flighting extending along the axis of the shaft. The flighting and the center shaft have opposite ends that are identical in construction, so that the auger can be driven from either end by a power unit.

Invertible auger

A drive shaft permits driving two different driven shafts, such as those used on powered earth augers, from a single power source, whether the driven shaft has a circular cross section drive coupling, or a hexagonal cross section drive coupling. In one form an adapter can be slipped over a hexagonal shaft to receive a circular cross section drive coupling, and in another form, a shaft is provided with two axially displaced portions. An outer end portion has a hexagonal cross section, and a slightly larger circular cross section shaft portion is positioned adjacent the power unit.

Adapters for auger drive shaft

A power attachment is attachable to a power machine which has a power circuit. The power machine also includes an operator input device receiving an operator input and providing an output signal indicative of the operator input. The attachment includes a tool and an actuator, coupled to the tool, to drive the tool. The actuator is also connectable to the power circuit of the power machine. A controller is operably coupled to the actuator and is operably coupleable to the operator input device. The controller controls operation of the tool based on an operator input signal provided by the operator input device.

Intelligent attachment to a power tool

The present invention relates to an auger mount device for coupling an auger to a vehicle such as an excavator, skid steer loader, or the like, having a dipper stick and a bucket link. The auger mount device comprises a mounting plate having a dipper end, an auger end, and a pivot aperture adjacent to the dipper end. The pivot aperture is suitable for mounting the auger mount device to the boom. A fin is attached to the mounting plate. The fin defines a slot suitable for attachment to the bucket link. The auger is mountable to the auger end.

Auger mount

The present invention relates to a brake actuated shift control for mobile self propelled machines to reduce premature brake wear leading to brake failure caused when a brake is engaged and, during brake engagement, a transmission coupled to the machine transmits power to a coupled drive wheel engaging a surface. The transmission has a plurality of selectable ranges corresponding inversely to a plurality of transmission output torques. A shift actuation control is coupled to the transmission to cause the transmission to shift to a higher range when the brake is applied with the transmission in a low range, so as to reduce the transmission output torque.

Brake actuated shift control for mobile machines

Trencher power unit

A gas spring for supporting a cab enclosure pivotably mounted to the body of a skid-steer vehicle. A stop tube is mounted to a piston rod and is telescopically cooperable with a cylinder body. Two parallel slots extend in a transverse direction through the stop tube. A stop slide has a pair of legs which are adapted to slide within the slots of a stop tube. A release portion of the stop slide is sized to permit the cylinder body to pass between the legs, while a stop portion is sized to prevent the cylinder body from passing between the legs. A spring urges the stop slide toward a stop position at which the stop portion of the stop slide is aligned with the cylinder body when the piston rod is extended. The cab enclosure is thereby latched to a tilt-back position. To lower the cab enclosure, the stop slide must be manually moved to a release position at which the release portion is aligned with the cylinder body, thereby permitting the cylinder body to pass between the legs of the stop slide with the piston rod retracted therein. A release cable coupled between a forward end of the cab enclosure and the stop slide can be actuated to conveniently move the step slide to its release position.

Gas spring with latching stop mechanism for use on skid-steer loaders

An operator restraint member having two ends is pivotally mounted at each end to a skid-steer loader. The restraint member has an engaged position for securing the operator to the operator position during operation of the loader and a disengaged position to permit the operator to enter or leave the loader. A friction device is connected to one end of the restraint member to retain the restraint member in the rotative position selected by the operator until repositioned. An automatic lock-quick release latch is connected to the other end of the restraint member for selectively locking the seat bar in its engaged position. A locking assembly is engaged with the control apparatus when the restraint member is in its disengaged position and undergoes pivotal movement to become disengaged from the control apparatus when the restraint member is in its engaged position.

Growing community of inventors

Lisbon, ND, United States of America

Verne C Watts