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US 2003/0213639 A1Published application
Transmission control systems
AssigneeDeere & Company
InventorDouglas Dean Korthals
Life of this patent
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AssigneeDeere & Company
InventorDouglas Dean Korthals
Estimating the term…
A transmission control system, such as for a self-propelled, walk-behind lawn mower, is provided for controlling first and second hydrostatic transmissions in which each one of the transmissions has a hydraulic dump actuator and a brake actuator. The transmission control system includes a control lever and a linkage. The linkage is engaged with the control lever, the hydraulic dump actuators, and the brake actuators of the first and second hydrostatic transmissions. The control lever and the linkage have a drive position which place both of the hydraulic dump actuators in a drive mode, a neutral position which place both of the hydraulic dump actuators in a neutral mode, and a brake position which place both of the brake actuators in a brake mode. The transmission control system can have a shift slot pattern which defines the drive, neutral, and brake positions of the control lever.
A transmission control system for controlling first and second hydrostatic transmissions, each one of the transmissions having a hydraulic dump actuator and a brake actuator, the transmission control system comprising:
A mowing machine comprising:
A mowing machine comprising:
A method of controlling first and second hydrostatic transmissions of a lawn mowing machine, comprising the step of concurrently placing both the first and second hydrostatic transmissions in a selected mode of drive mode, neutral mode, and brake mode in response to a user actuation of a single actuator.
Dependencies are inferred from the claim text.