Granted Patent B2

US 12,636,768 · App. 19/062,249 · Granted May 26, 2026

Inventors: Paul F. Daily (Waukesha, WI); Kylie A. Janczy (Milwaukee, WI); Aaron C. Jonckheere (Milwaukee, WI); Sarah K. Plunkett (New Berlin, WI); Kentez L. Craig (Milwaukee, WI)

Assignee: Milwaukee Electric Tool Corporation

B25F5/005B25B21/02G01K3/10

Abstract

Claims (40)

1 . A power tool comprising:

a motor;

an impulse assembly configured to be driven by the motor;

a temperature sensor configured to output a signal related to a temperature of the power tool, the temperature of the power tool being correlated to a temperature of a fluid within the impulse assembly; and

a controller connected to the temperature sensor, the controller configured to:

determine the temperature of the power tool based on the signal from the temperature sensor,

control, in response to the temperature of the power tool being greater than a first temperature threshold, the power tool based on the temperature of the power tool,

compare, in response to the temperature of the power tool being less than the first temperature threshold and greater than or equal to a second temperature threshold, an amount of time for which the temperature of the power tool is less than the first temperature threshold and greater than or equal to the second temperature threshold to a time threshold, and

disable, in response to the amount of time reaching the time threshold, the power tool.

2 . The power tool of claim 1 , wherein, to control the power tool based on the temperature of the power tool, the controller is configured to one of shut down the power tool or reduce an output of the power tool.

3 . The power tool of claim 1 , wherein the temperature sensor is positioned away from a path of airflow circulation within the power tool.

4 . The power tool of claim 3 , wherein the temperature sensor is positioned on a light assembly printed circuit board (“PCB”).

5 . The power tool of claim 1 , wherein the temperature sensor is positioned on a Hall effect sensor printed circuit board (“PCB”).

6 . A power tool comprising:

a motor;

an impulse assembly configured to be driven by the motor;

a first temperature sensor configured to output a first signal related to a temperature of the power tool, the temperature of the power tool being correlated to a temperature of a fluid within the impulse assembly;

a second temperature sensor configured to output a second signal related to the temperature of the power tool, the temperature of the power tool being correlated to the temperature of the fluid within the impulse assembly; and

a controller connected to the first temperature sensor and the second temperature sensor, the controller configured to:

determine the temperature of the power tool based on the first signal from the first temperature sensor and the second signal from the second temperature sensor,

control, in response to the temperature of the power tool being greater than a first temperature threshold, the power tool based on the temperature of the power tool,

compare, in response to the temperature of the power tool being less than the temperature threshold and greater than or equal to a second temperature threshold, an amount of time for which the temperature of the power tool is less than the first temperature threshold and greater than or equal to the second temperature threshold to a time threshold, and

disable, in response to the amount of time reaching the time threshold, the power tool.

7 . The power tool of claim 6 , wherein, to control the power tool based on the temperature of the power tool, the controller is configured to shut down the power tool.

8 . The power tool of claim 6 , wherein the first temperature sensor and the second temperature sensor are positioned away from a path of airflow circulation within the power tool.

9 . The power tool of claim 8 , wherein the first temperature sensor is positioned on a light assembly printed circuit board (“PCB”).

10 . The power tool of claim 9 , wherein the second temperature sensor is positioned on a Hall effect sensor PCB.

11 . A method of controlling a power tool, the method comprising:

receiving, from a temperature sensor, a signal related to a temperature of the power tool, the temperature of the power tool being correlated to a temperature of a fluid within an impulse assembly;

determining the temperature of the power tool based on the signal from the temperature sensor;

controlling, in response to the temperature of the power tool being greater than a first temperature threshold, the power tool based on the temperature of the power tool;

comparing, in response to the temperature of the power tool being less than the temperature threshold and greater than or equal to a second temperature threshold, an amount of time for which the temperature of the power tool is less than the first temperature threshold and greater than or equal to the second temperature threshold to a time threshold; and

disabling, in response to the amount of time reaching the time threshold, the power tool.

12 . The method of claim 11 , wherein controlling the power tool based on the temperature of the power tool includes one or shutting down the power tool or reducing an output of the power tool.

13 . The method of claim 11 , wherein the temperature sensor is positioned away from a path of airflow circulation within the power tool.

14 . The method of claim 13 , wherein the temperature sensor is positioned on a light assembly printed circuit board (“PCB”).

15 . The method of claim 13 , wherein the temperature sensor is positioned on a Hall effect sensor printed circuit board (“PCB”).

16 . The method of claim 11 , wherein the temperature sensor is positioned within the impulse assembly.

17 . The method of claim 11 , further comprising:

receiving, from a second temperature sensor, a second signal related to the temperature of the power tool, the temperature of the power tool being correlated to the temperature of the fluid within an impulse assembly.

Assignments (1)

Continuity (3)

References Cited (54)