The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2012
Filed:
Apr. 20, 2009
Chris Osswald, Rothschild, WI (US);
Marcus F. Dack, Schofield, WI (US);
Thomas E. Price, Jr., Hartland, WI (US);
Alan Severns, Mukwonago, WI (US);
Dave Franchino, Madison, WI (US);
Kent Kallsen, Jefferson, WI (US);
Kenneth Buelt, Wausau, WI (US);
Chris Osswald, Rothschild, WI (US);
Marcus F. Dack, Schofield, WI (US);
Thomas E. Price, Jr., Hartland, WI (US);
Alan Severns, Mukwonago, WI (US);
Dave Franchino, Madison, WI (US);
Kent Kallsen, Jefferson, WI (US);
Kenneth Buelt, Wausau, WI (US);
Extendquip LLC, Schofield, WI (US);
Abstract
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.