Support coil comprising a mechanical locking means and...

Details Support coil comprising a mechanical locking means and... Support coil comprising a mechanical locking means and...

2007-05-03

2010-06-29

O'Hern, Brent T (Department: 1794)

Stock material or miscellaneous articles

Sheets or webs edge spliced or joined

C428S037000, C428S053000, C428S156000

Reexamination Certificate

active

07744977

ABSTRACT:
A support coil for radially supporting an elastically expanded tube material includes an extruded profile body consisting of a plurality of windings wound about a longitudinal axis of the support coil. Each of the windings has opposing end faces. A ratchet arrangement joins the end faces of the adjacent windings with respect to the longitudinal axis of the support coil. A tongue and groove arrangement joins the end faces of the adjacent windings with respect to a radial direction of the support coil. The tongue and groove arrangement is spatially separated from the ratchet arrangement.

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patent: WO 98/21802 (1998-05-01), None

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