Vaporizing foil actuator configured as consumable tape
AssigneeOhio State Innovation Foundation
InventorsAnupam Vivek, Glenn Daehn
Life of this patent
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Abstract
An elongate tape (10) acts as a vaporizing actuator for impulse metalworking. It has an electrically-insulative base layer (20), an electrically-conductive layer (30), and an electrically-insulative top layer (40). In it, the base layer is characterized by the length of the tape and a first width W1, as measured between a pair of side edges. The conductive layer is characterized by the length of the tape and a second width W2, as measured between a pair of side edges; and the top layer is characterized by the length of the tape and a third width W3, as measured between a pair of side edges. The layers are joined to each other to form the elongate tape with the electrically-conductive layer interposed between the electrically-insulative base and top layers.
Claims15
An elongate tape, used as a consumable item in an impulse metal working process, the elongate tape comprising:
- an electrically-insulative base layer;
- an electrically-conductive metal layer, and
- an electrically-insulative top layer;
- wherein the layers are joined together to form the tape, with the metal layer interposed between the base layer and the top layer;
- wherein the metal layer has a width that is larger than a width of the top layer, thereby providing a pair of electrically-conductive metal side edges along the length of the tape;
- and
- wherein the metal layer has, between the side edges, a portion of the metal removed, in a regular sequential manner, along the length of the elongate tape, such that an electrical current passing transversely in a portion of the tape from one side edge to the other side edge encounters a zone of constricted area to focus the current.
Dependencies are inferred from the claim text.