Light weight cordless stud welder
AssigneeNelson Stud Welding, Inc.
InventorsScott J. Schraff, Larry L. Church, Stephen D. Brooks, Jeffrey Krupp
Life of this patent
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Abstract
A portable stud welder apparatus is provided for welding a stud onto a work piece. The portable stud welder apparatus includes a housing and an energy storage device. A weld stud gun that is configured to hold a weld stud is electrically connected to the energy storage device for receiving energy from the energy storage device to pass a current through the stud and the work piece to form a weldment. At least one battery of the lithium ion type that is removeably coupled to the housing to establish an electrical connection with said energy storage device and provide energy to the energy storage device.
Claims13
A portable stud welder apparatus for welding a stud onto a work piece, said portable stud welder apparatus including:
- a housing;
- an energy storage device disposed in said housing;
- a weld stud gun electrically connected to said energy storage device for receiving energy from said energy storage device to pass a current through the stud and the work piece to form a weldment;
- at least one battery of the lithium ion type being removeably coupled to said housing to establish an electrical connection with said energy storage device to provide energy to said energy storage device;
- a battery charger independent of and separate from said housing for charging said at least one battery of the lithium ion type, wherein said housing does not include a power cord;
- said at least one battery of the lithium ion type including an internal battery management system;
- said housing defining a work piece ground terminal and a chassis ground terminal;
- a welding ground cable extending from said work piece ground terminal of said housing to a connector for being fixed and electrically connected to the work piece;
- and
- a safety ground cable separate from said welding ground cable and extending between said chassis ground terminal and said connector for providing a safety ground for the portable stud welder apparatus.
Dependencies are inferred from the claim text.