Invention Grant
US07780197B2 Apparatus and method for changing the track of the wheels of a tractor
失效
用于改变拖拉机车轮轨迹的装置和方法
- Patent Title: Apparatus and method for changing the track of the wheels of a tractor
- Patent Title (中): 用于改变拖拉机车轮轨迹的装置和方法
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Application No.: US12417515Application Date: 2009-04-02
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Publication No.: US07780197B2Publication Date: 2010-08-24
- Inventor: Robert E White
- Applicant: Robert E White
- Applicant Address: US AZ Gilbert
- Assignee: Debra Arlene Glad White Trust
- Current Assignee: Debra Arlene Glad White Trust
- Current Assignee Address: US AZ Gilbert
- Agency: The von Hellens Law Firm, Ltd.
- Main IPC: B62D21/00
- IPC: B62D21/00
Abstract:
A tractor includes a motor, transmission, drive shaft and rear differential for driving the rear axles mounted on a main tubular frame of a variable configuration. Forwardly extendable telescoping tubular frame members are actuated by respective rams to selectively vary the spacing between the frame and the front wheels. The front and rear lateral telescoping tubes supporting each of the wheels are selectively extendable and retractable to significantly vary the wheel width or track of the front and rear wheels.
Public/Granted literature
- US20090194984A1 APPARATUS AND METHOD FOR CHANGING THE TRACK OF THE WHEELS OF A TRACTOR Public/Granted day:2009-08-06
Information query
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