H - Electricity – 01 – P
Patent
H - Electricity
01
P
333/100, 26/128
H01P 3/12 (2006.01) H01P 3/13 (2006.01) H01P 11/00 (2006.01)
Patent
CA 1042525
ABSTRACT OF THE DISCLOSURE A process for the manufacture of a circular helix waveguide comprising a helically wound insulated metallic wire covered with a barrier layer and forming a wound and wrapped structure itself covered by a metallic screen, wherein a metal band is shaped into a tube, the contiguous edges of the said band are welded by a high frequency current in such a way that after welding the internal diameter of the shaped tube is a few millimeters greater than the exter- nal diameter of the wound and wrapped structure, the said tube is placed around the said structure, then the said tube is shaped into a cylinder with a circular base on the said structure to constitute the said metallic screen.
243232
Allanic Jacques
Fuchs Guerchon G.
Etat Francais Represente Par Le Secretaire Des Postes Et Telecom
Societe Anonyme de Telecommunications
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