Induction hardening coil for a crankshaft
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 26, 2002
Issued Date -
N/A
app pub date -
Oct 30, 2000
filing date -
Oct 29, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An first induction hardening coil assembly according to one embodiment of the present invention comprises a coil having a top surface, an underside surface, and an inner coil curvature disposed between the top surface and the underside surface. The inner coil curvature extends approximately 180 degrees around a coil axis. The coil further includes a first end section adjacent a first end of the inner coil curvature which extends between the top surface and the underside surface. A second end section adjacent a second end of the inner coil curvature extends between the top surface and the underside surface. A support arm is connected to the coil and is constructed and arranged for providing an electrical connection between the coil and a source of electrical current. The support arm includes a current-in portion connected to the underside surface adjacent the first end section and a current-out portion connected to the top surface at a location which is between the first and second end sections. In a cooperating, second induction hardening coil assembly which is used with the first coil assembly for a split pin pair, the current-in portion of the support arm is connected to the top surface adjacent the first end section. The current-out portion of the support arm is connected to the underside surface adjacent the first end section.
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