Back to results
US 6,561,913 B2Granted
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.
Claims17
An improved fastener insert production method comprising the steps of:
- a) providing a wire;
- b) cold head stamping the wire to form a first detent in said wire;
- c) coiling the wire to form a helically coiled body;
- d) bending an end of said wire in proximity to said detent to provide a selectively removable tang;
- and
- e) cold head stamping the wire to form a second detent in said wire after the step of coiling the wire to form a helically coiled body.
3 more elements
A method of marking fastener inserts comprises the steps of:
- a) providing a wire;
- b) cold head stamping the wire to form a first detent and a first marking on said wire;
- c) coiling the wire to form a helically coiled body;
- and
- d) cold head stamping the wire after the step of coiling the wire to form a helically coiled body to form a second marking and a second detent.
2 more elements
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;
- an actuator for intermittently extending and retracting said stamping die;
- a mandrel configured to form the wire into a helical body;
- and
- a cutting apparatus configured to cut the wire after said helical body is formed, wherein said selectively extendable and retractable stamping die is configured to stamp a detent in the wire after the helical body is formed.
3 more elements
Dependencies are inferred from the claim text.