Motor vehicles – Steered by walking attendant – Handle movement controls vehicle drive
Reexamination Certificate
2010-02-16
2011-12-20
Hurley, Kevin (Department: 3611)
Motor vehicles
Steered by walking attendant
Handle movement controls vehicle drive
Reexamination Certificate
active
08079433
ABSTRACT:
Retractable line guidance for a self-propelled machine, such as a self-propelled lawn mower, is provided by an operator moving a string or line to control the speed and direction of movement of the machine. A retractable and extendable line is mounted on the machine and is under tension in a retraction direction when the line is extended. A length of extension of the line is monitored, and a speed of movement of the machine is controlled in response to the length of extension of the line to maintain the length of extension of the line at a selected length. An angle of the line with respect to the machine is monitored, and a direction of movement of the machine is controlled in response to the angle of the line to maintain the angle of the line at a selected angle.
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Anderson Noel Wayne
Teague Ross Carlyle
Deere & Company
Hurley Kevin
Wolff Dawn C.
Yee & Associates P.C.
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