Switch assembly for power tools
AssigneeTechtronic Cordless GP
InventorJoseph Manuel Suarez
Life of this patent
Estimating the term…
Abstract
A switch assembly for use in a power tool may include a load circuit having a movable contact through which an electrical current flows to operate the power tool. A switch assembly may include a biasing element configured to bias the movable contact toward an open position in the load circuit. A switch assembly may include a fuse element which, in an intact state, is configured to maintain the movable contact in a closed position in the load circuit against a bias of the biasing element, and which, in a broken state, is configured to permit the movable contact to move to the open position under the bias of the biasing element.
Claims21
A switch assembly for use in a power tool, the switch assembly comprising:
- a load circuit including a movable contact through which an electrical current flows to operate the power tool;
- a biasing element configured to bias the movable contact toward an open position in the load circuit;
- and
- a fuse element which, in an intact state, is configured to maintain the movable contact in a closed position in the load circuit against a bias of the biasing element, and which, in a broken state, is configured to permit the movable contact to move to the open position under the bias of the biasing element.
A switch assembly for use in a power tool, the switch assembly comprising:
- a load circuit including a movable contact through which an electrical current flows to operate the power tool;
- and
- a fuse element which, in an intact state, maintains the movable contact in a closed position in the load circuit, and which, in a broken state, permits the movable contact to move to an open position.
A power tool comprising:
- an electronic control unit configured to control operation of the power tool;
- and
- a switch assembly including
- a load circuit including a movable contact through which an electrical current flows to operate the power tool;
- and
- a fuse element which, in an intact state, maintains the movable contact in a closed position in the load circuit, and which, in a broken state, permits the movable contact to move to an open position,
- wherein when the electronic control unit detects a fault with the power tool, the fuse element is configured to break in response to an electrical current being passed through the fuse element.
-25. (canceled)
Dependencies are inferred from the claim text.