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AssigneeExtendedquip, LLC
InventorsChris Osswald, Walter A. Osswald, Marcus F. Dack, Kenneth Buelt, Thomas E. Price, Jr., Alan Severns, Jeffrey A. Wierschke, Joe A. Racz, David R. Bauer, Justin D. Gasal
Estimating the term…
An extendable frame work vehicle offering enhanced versatility, safety and effectiveness. The vehicle includes an adjustable frame with front and rear portions that extend or retract with respect to each other. The front portion is supported by a first pair of wheels and said rear portion is supported by a second pair of wheels. Each wheel is independently driven and steered. The vehicle also includes an engine mounted on the rear portion of the frame. Incorporated into the vehicle is an electro-hydraulic assembly which enables extension and retraction of the adjustable frame. The assembly includes a sensor-responsive microprocessor controller, at least one hydraulic pump, at least one hydraulic drive motor, and at least one valve network.
A work vehicle comprising:
A work vehicle comprising:
A work vehicle comprising:
A work vehicle comprising:
A work vehicle comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Understructures, i.e. chassis frame on which a vehicle body may be mounted: of adjustable length or width
Auxiliary drives: from the transmission power take-off
Stabilising vehicle bodies without controlling suspension arrangements: by means of movable masses
Adapted for multi-purpose use: tractors of variable track width or wheel base
About 1 year of term left · ends 14 Oct 2027 (estimated)
Not applicable
I. Field of the Invention
This invention relates generally to extendable frame vehicles, and more particularly to extendable frame work vehicles capable of enhanced performance of a variety of construction, landscaping, residential, agriculture and industrial tasks.
FIG. 1 is a perspective view of a work vehicle embodiment in accordance with the present invention shown in a compact or fully retracted configuration;
FIG. 2 is a side view of the work vehicle as in FIG. 1;
FIG. 3 is a side view of the work vehicle of FIG. 1 with a secondary extension deployed;
The present invention can be readily understood from the aforementioned figures, the following detailed description and certain embodiments of the present invention. It will be appreciated that the detailed embodiments are meant only as examples and are not intended to limit the scope of the concepts in any manner.
FIG. 1 sets forth the basic assembly of the work vehicle in its retracted configuration. In general, the overall appearance of the vehicle may resemble a typical skid steer design when in a retracted state. Although many of the vehicle's features are concealed in this contracted disposition, some of the work vehicle's basic structure can be appreciated from the perspective view of FIG. 1 and the side view of FIG. 2.
The work vehicle 10 generally, as will become apparent, includes a frame having a front portion 14 and a rear portion 16. Front portion 14 of the frame supports a lift arm assembly 21 (FIG. 2), an operator's cab 22, side housing members 23, and much of the physical structure of the front section of the vehicle. A set of wheels comprising wheels 18 and 20 (FIG. 6) support the front portion of the frame. As used throughout this specification, a “set of wheels” may also refer to any suitable number of wheels, e.g. one or more.