Method of manufacturing connecting devices

Details Method of manufacturing connecting devices Method of manufacturing connecting devices

2007-09-18

2007-09-18

Crane, Daniel C. (Department: 3725)

Metal deforming

By twisting axially moving work

C072S371000

Reexamination Certificate

active

10344387

ABSTRACT:
The invention relates to a method of manufacturing a connecting device having common axial core material and a plurality of helical fins, flanges or ridges that extend outwards from the core. The method uses an elongate preform member, and comprises forcing the preform member in the axial direction of its core through a helical deformation arrangement (22) in order to deform the preform member helically.

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