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US 8,800,338 B2Granted
Manufacture of coil springs
AssigneeSpringform Technology Limited
InventorIan James Whitworth
Life of this patent
Estimating the term…
Abstract
An apparatus is disclosed for the manufacture of a coil spring from a wire. The apparatus comprises first and second tools for contacting the wire prior to, and/or during, deformation of the wire into a coil spring. The apparatus includes means for applying an electrical potential difference between the first and second tools such that an electric current is caused to flow through at least part of the wire during use.
Claims25
Apparatus for the manufacture of a coil spring from a wire, the apparatus comprising:
- first and second tools each configured to contact the wire simultaneously at different locations on the wire prior to deformation of the wire into a coil spring by a coil assembly, at least one of the first and second tools configured to move the wire and at least one of the first and second tools configured to deform the wire, wherein the apparatus includes means for applying an electrical potential difference between the first and second tools, such that an electric current is caused to flow through at least part of the wire, during use.
Dependencies are inferred from the claim text.