Power-take-off safety system
OwnerEugene E. Stabenowinventor
Life of this patent
Estimating the term…
Abstract
A safety system for automatically shutting off the power-take-off of a tractor in an emergency to thereby stop the machine being driven by the power-take-off. The system includes at least one machine sensor for detecting the presence of a foreign body adjacent a portion of the machine, and a shut-off, responsive to the sensor, for shutting off the power-take-off when the sensor detects the presence of a foreign body adjacent the machine. Sensors can also be provided to monitor the power-take-off shaft The sensors are preferably a photocell. The system optionally include an alarm that sounds when the sensor detects the presence of a foreign body adjacent the machine.
Claims16
In combination with a tractor having a power-take-off and a machine being driven by the power-take-off, a safety system for automatically shutting off the power-take-off in an emergency to thereby stop the machine, the safety system comprising:
- at least one machine sensor for detecting the presence of a foreign body adjacent a portion of the machine;
- shut-off means, responsive to the sensor, for shutting off the power-take-off when the sensor detects the presence of a foreign body adjacent the machine.
In combination with a tractor having a power-take-off that can be turned on and shut off by a control on the tractor, and a machine being driven by the power-take-off, a safety system for shutting off the power-take-off in an emergency to thereby stop the machine, the safety system comprising:
- at least one machine sensor for detecting the presence of a foreign body adjacent a portion of the machine;
- shut-off means, responsive to the machine sensor, for operating the control on the tractor to shut off the power-take-off when the sensor detects the presence of a foreign body adjacent the machine.
In combination with a tractor having a power-take-off that can be turned on and shut off by a control on the tractor which is operable between an on position in which the power-takeoff is on and an off position in which the power-take-off is off, and a machine being driven by the power-take-off, a safety system for shutting off the power-take-off in an emergency to thereby stop the machine, the safety system comprising:
- at least one machine sensor mounted on the machine for detecting the presence of a foreign body adjacent a portion of the machine;
- shut-off means, responsive to the machine sensor, for operating the control on the tractor to the off position to shut off the power-take-off when the machine sensor detects the presence of a foreign body adjacent the machine.
Dependencies are inferred from the claim text.