Clark Equipment Compnay

Jason J Asche

Wally L Kaczmarski

Thomas M Sagaser

Henry J Weber

Craig A Berard

Jeret L Hoesel

Rodney Koch

Joseph A St Aubin

Lance S Tuhy

Aaron G Hill

William H Curl

Jeremy W Ekren

Joshua F Maus

Robert D Waletzko

Todd Vanderlinde

A hydraulic circuit for an actuator that has a piston and piston rod that will move a load in a first direction, and which can be externally loaded in an opposite direction, includes a flow compensated valve between the actuator and a control valve. When the piston in the actuator is moved in the second opposite direction under the external load and the rate of flow of fluid out of the actuator through the flow compensated valve exceeds a selected rate, an orifice is introduced in the flow path to restrict flow from the actuator.

Flow compensated restrictive orifice for overrunning load protection

A track driven vehicle comprises a structural member underneath the vehicle. The structural member includes a plurality of structural member apertures for receiving fasteners inserted therethrough. The vehicle also includes a first track carrier and a first mounting strut attached to the first track carrier. The first mounting strut, which attaches the first track carrier to the structural member, includes a plurality of mounting strut apertures which, when aligned with the structural member apertures, receive the fasteners inserted therethrough. One of the first mounting strut and the structural member includes a fixedly attached dowel pin, and the other of the first mounting strut and the structural member includes a pin receiving aperture. When attaching the first track carrier to the structural member using the first mounting strut, the dowel pin extends into the pin receiving aperture to prevent cross-shearing between the structural member and the first mounting strut. This reduces camber between the structural member and the track carrier and allows fewer fasteners to be used to attach the first track carrier to the structural member.

Method of retaining structural transmission members

Disclosed are work machine vehicles having an operator protective structure with a seat mounted in the operator protective structure. In disclosed embodiments, first and second adjustable armrest assemblies are mounted to a structure of the seat such that the first and second armrest assemblies can be adjusted in fore and aft directions relative to a seatback of the seat. Vehicle controls are integrated with the first and second adjustable armrest assemblies such that adjustment of the first and second adjustable armrest assemblies adjusts positions of the vehicle controls relative to an operator sitting on the seat. After adjustment, the vehicle controls and the operator sitting on the seat are maintained at constant relative positions with respect to each other even as the work machine vehicle moves over rough terrain and the seat moves up and down. A nested seatbar is pivotably mounted to a structure of the work machine vehicle such that the nested seatbar can be moved to a down position in which portions of the nested seatbar are located between the first and second adjustable armrests.

Work machine vehicle having seat mounted controls with nested seatbar

An excavator has an operator's cab with an engine compartment at the rear which has a laterally facing opening for receiving cooling air that is drawn by an engine fan through a radiator. A duct is provided for transmitting cooling air from an inlet opening in the duct remote from the engine compartment opening. The engine compartment opening faces a wall of the duct so that the sound waves from the engine compartment must be deflected at an angle before reaching the inlet air opening. The duct causes the inlet air to turn substantially 90&deg; as it flows from the air inlet opening in order to pass through the radiator at the engine compartment opening.

Cooling air ducting for excavator

A quick attach accessory tool mounting frame is adapted to be mounted onto a quick attachment bracket and held in place. The adapter frame has spaced side plates that slide over a bracket and with a linear movement can be held in place on the bracket. The frame has an adapter plate that can be used with brackets to mount on a wide variety of auxiliary tools used with a backhoe or excavator.

Frame for mounting on a boom mounted quick change bracket

A bracket and frame assembly permits attaching and removing a bucket or other tool to and from an arm of an excavator, backhoe, or the like. The bracket and frame assembly comprises two portions, a bracket and a detachable frame. The bracket mounts onto the arm of the implement. The bracket carries a latch member. The bracket can be moved onto a frame on a bucket or other tool, and is latched in place without dismounting from the backhoe, excavator or the like. The latch member can be released, either manually or under power, and then by manipulating the arm, the tool and frame can be removed from the bracket and a new tool mounted. The engaging portions of the frame and bracket are such that as wear occurs, the parts will compensate and remain secured without play or slop.

Growing community of inventors

Bismarck, ND, United States of America

Jason J Asche