Pipe cutter
First Claim
1. A power tool configured to cut an object, comprising:
- a motor configured to drive an operation;
a cutting assembly for cutting the object, the cutting assembly including a blade and a body portion positioned opposite the blade, the blade and the body portion defining a cutting area for receiving the object;
a controller configured tomonitor a state of charge of a battery connected to the motor,compare the state of charge to a predetermined first threshold, the first threshold being greater than the state of charge needed by the motor to complete the operation, and the first threshold being greater than a second threshold, the second threshold related to the state of charge at which an over-discharged condition occurs in the battery,wherein the operation includes performing at least a portion of a cutting action and returning the cutting assembly to a starting position, andprevent the motor from driving the operation when the state of charge is less than or equal to the first threshold.
1 Assignment
0 Petitions
Accused Products
Abstract
A power tool, such as a pipe cutter, includes a rotatable cutting head assembly, an electric motor connectable to a rechargeable battery, and a controller. The controller is configured to monitor the state of charge on the battery, compare the state of charge to one or more thresholds, and prevent or limit operation of the power tool when the state of charge is less than or equal to one or more of the thresholds. In some embodiments, the threshold includes the state of charge required to cut a pipe, the state of charge required to return the cutting head assembly to a home position, and a state of charge indicative of an overdischarged condition of the battery. In some embodiments, the controller is configured to detect when the pipe cutter has completed cutting the pipe and returns the cutting head assembly to the home position.
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Citations
14 Claims
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1. A power tool configured to cut an object, comprising:
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a motor configured to drive an operation; a cutting assembly for cutting the object, the cutting assembly including a blade and a body portion positioned opposite the blade, the blade and the body portion defining a cutting area for receiving the object; a controller configured to monitor a state of charge of a battery connected to the motor, compare the state of charge to a predetermined first threshold, the first threshold being greater than the state of charge needed by the motor to complete the operation, and the first threshold being greater than a second threshold, the second threshold related to the state of charge at which an over-discharged condition occurs in the battery, wherein the operation includes performing at least a portion of a cutting action and returning the cutting assembly to a starting position, and prevent the motor from driving the operation when the state of charge is less than or equal to the first threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification