Patent · US Active

Support coil comprising a mechanical locking means and method for the production thereof

US7744977B2 · kind B2 · utility

2Cited by
2References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 3, 2007
Grant dateJun 29, 2010
Priority date
Expiry dateOct 4, 2027

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/24479
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.