Power plants – Pressure fluid source and motor – Having correlated or joint actuation of controller of input...
Reexamination Certificate
2007-12-25
2007-12-25
Leslie, Michael (Department: 3745)
Power plants
Pressure fluid source and motor
Having correlated or joint actuation of controller of input...
C060S328000, C060S487000
Reexamination Certificate
active
11297966
ABSTRACT:
A hydrostatic transmission on a tractor is operated by a microcontroller providing current commands to the hydrostatic transmission pump, and manual controls that provide signals to the microcontroller so the current commands cause the hydrostatic transmission to operate in either a first mode or a second mode. In the first or automatic mode the swash plate position may be continuously variable based on the position of a foot pedal. In the second or gear mode the swash plate may be moved to any of a plurality of discrete positions based on the position of a manually operable switch.
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Deere Manual for 7220, 7320, 7420, and 7520 Tractors: Revolutionary John Deere Infinitely Variable Transmission (IVT) for Better Operator Control and Increased Productivity, Oct. 4, 2002, [online], [retrieved on Oct. 30, 2002]. Retrieved from the Internet: <URL: http://products.deere.com/Deere/agsales/asm/s2/7020/7020st16.htm>.
Deere Manual for 450H/550H Crawler Dozers: FNR with Transmission Speed In Grip-If Equipped, 2001, [online], [retrieved on Oct. 30, 2002]. Retrieved from the Internet: <URL: http://manuals.deere.com/omview/OMT179658—19/html>.
Deere Manual for 450H/550H Crawler Dozers: Foot Pedals, 2001, [online], [retrieved on Oct. 30, 2002]. Retrieved from the Internet: <URL: http://manuals.deere.com/omview/OMT179658—19/html>.
Deere Manual for 304H Loader: Shifting the Machine, 2001, [online], [retrieved on Oct. 30, 2002]. Retrieved from the Internet: <URL: http://manuals.deere.com/omview/OMT184550—19/html>.
Deere Manual for 450H/550H Crawler Dozers: Forward-Neutral-Reverse Control Lever (FNR), 2001, [online], [retrieved on Oct. 30, 2002]. Retrieved from the Internet: <URL: http://manuals.deere.com/omview/OMT179658—19/html>.
Deere Manual for 304H Loader: Brake/Inching Pedal, 2001, [online], [retrieved on Oct. 30, 2002]. Retrieved from the Internet: <URL: http://manuals.deere.com/omview/OMT184550—19/html>.
Deere Specifications for 304H, 324H, and 344H Loaders (2002).
Deere Manual for 6000 Series Tractor, p. 45-18, Feb. 2002.
Burgart Joseph Gerard
Evans Mark David
Deere & Company
Leslie Michael
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