Method of forming a helical wave guide assembly by precision coi

Details Method of forming a helical wave guide assembly by precision coi Method of forming a helical wave guide assembly by precision coi

1987-02-24

1987-12-15

Combs, E. Michael

Metal working

Method of mechanical manufacture

Electrical device making

29517, H01P 1100, B23P 1100

Patent

active

047122943

ABSTRACT:
Helical slow-wave structure (10) carrying three ceramic support rods (12, 14, 16) is inserted with clearance into the bore (22) of malleable barrel (20). Dies (24, 26) close around the barrel to malleably coin the barrel and close it down around the support rods to engage the support rods by interference fit to accurately support the helix (10) and provide thermal conductivity therefrom.

REFERENCES:
patent: 2235255 (1941-03-01), Durant
patent: 2943228 (1960-06-01), Kleinman
patent: 3514843 (1970-06-01), Cernik
patent: 3540119 (1970-11-01), Manoly
patent: 3551999 (1971-01-01), Gutmann
patent: 4071834 (1978-01-01), Comte
patent: 4270069 (1981-05-01), Wiehler
patent: 4503602 (1985-03-01), Hillmann

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