Metal working – Method of mechanical manufacture – Spring making
Reexamination Certificate
2006-06-06
2006-06-06
Omgba, Essama (Department: 3726)
Metal working
Method of mechanical manufacture
Spring making
C029S03300H, C148S595000
Reexamination Certificate
active
07055244
ABSTRACT:
The present invention relates to a method of forming a coil of spring wire by winding a wire into a coil spring formed of a plurality of rings of the wire wherein each of the rings has a substantially constant strain rate. The forming speed of the wire being wound is controlled so that each of the rings has a substantially constant strain rate and minimum work hardening occurs.
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Bhagwat Anand Waman
Wray Steven Shannon
Cohn Howard M.
Omgba Essama
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