Importance

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Abstract

A switch lock-out device to prevent unintended operation of a power tool through inadvertent actuation of a trigger operably associated with a motor as disclosed. The trigger is pivotally mounted in handle grip for energizing the power tool when depressed. An outer free end of the trigger extends within the handle grip. The switch lock-out device includes an integral multiple-armed element that is pivotally mounted within the handle grip. The pivotally mounted multiple-armed element includes a first arm that engages the outer free end of the trigger to prevent actuation, a second arm that includes a manual engageable button that extends outside of the handle grip and a third arm that engages an internal wall of the handle grip in biased and resilient engagement. When the manually engageable button is depressed, a first arm of the multiple-armed element is pivoted out of engagement with the free end of the trigger for actuation of the trigger to operate the power tool. Subsequent release of the manually engageable button enables the third arm biased against an internal wall of a handle grip to return the second arm and its manually engageable button to its normal position for subsequent re-engagement with the free end of the trigger when released.

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First Claim