Cold head stamped fastener inserts including selectively removable tangs
AssigneeNewfrey LLC
InventorsWilliam Giannakakos, John F. Carvalho, Roger Zitnay, J. Peter Ferreira
Life of this patent
Estimating the term…
Abstract
The present invention provides for fastener inserts and methods of manufacturing the same. The fastener inserts include selectively removable tangs which can be broken away more cleanly than with other commercially available fastener inserts. Further, the methods of manufacture offer a significant improvement in the production process.
Claims28
An improved fastener insert production method comprising the steps of:
- a) providing a wire;
- b) cold head stamping the wire to form at least one detent in said wire;
- c) coiling the wire to form a helically coiled body;
- and
- d) bending an end of said wire in proximity to said detent to provide a selectively removable tang.
A fastener insert comprising:
- a wire body having a plurality of convolutions;
- at least one detent cold formed into said wire body;
- and
- a selectively removable tang extending from said body in proximity to said at least one detent.
A method of marking fastener inserts comprises the steps of:
- a) providing a wire;
- b) cold head stamping the wire to form a marking on said wire;
- and
- c) coiling the wire to form a helically coiled body.
A fastener insert comprising:
- a wire body having a plurality of convolutions;
- and
- a marking cold head stamped into said wire body to provide an identifier on said insert.
An apparatus for cold head stamping wire to be formed into fastener inserts comprising:
- a fixture;
- a selectively extendable and retractable stamping die supported by said fixture for stamping a detent into said wire;
- and
- an actuator for intermittently extending and retracting said stamping die.
Dependencies are inferred from the claim text.