公开(公告)号：US3677730A

公开(公告)日：1972-07-18

申请号：US3677730D

申请日：1968-12-18

Applicant: BENDIX CORP

Inventor： DERADOORIAN BAGDASAR ,  GOODRICH GEORGE W ,  THEODOROU DIMITRI G

IPC: C03B23/047 ,  C03B23/207 ,  H01J9/12 ,  C03C27/06

CPC classification number: C03B23/047 ,  C03B23/207 ,  H01J9/125 ,  H01J2201/32

Abstract: A method of forming an array from a bundle of individual channel multipliers, the individual channels being fabricated of a lower temperature softening glass tube to permit the walls of the individual channels to be spiralled and also expanded to fill the interstices within a higher softening temperature outer tube, Also, the invention could be practiced utilizing glass tubes of the same temperature softening characteristic. The expanding and spiralling operation is preformed simultaneously by drawing the bundle of individual channels through a furnace while rotating the feed or pull assemblies of the drawing apparatus to spiral the channel bundle and exhausting the area between the individual tubes and the equal or higher temperature softening glass tube to expand the individual channels.