Metal working – Method of mechanical manufacture – Electrical device making
Patent
1983-10-05
1986-07-08
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Electrical device making
29464, 29DIG4, 315 35, H01P 1100
Patent
active
045984654
ABSTRACT:
A millimeter coupled cavity travelling wave tube has its slow wave structures formed by a hobbing process. In a preferred construction, each slow wave structure is made of two individual halves each extending for the length of the structure. Each half contains one half of each cavity and one half of each beam hole and all of the portions of cavity and portions of beam hole in each half are formed in one hobbing operating. Coupling holes between cavities are formed where required by a process (e.g. spark erosion) separate from hobbing and if ferrules or drift tubes are required to extend out of the cavity separating walls in the finished tube, the beam coupling holes are made oversized and individual ferrules are brazed into position. The two halves of the slow wave structure are united by furnace brazing.
REFERENCES:
patent: 3678575 (1972-07-01), Akeyama et al.
patent: 4129803 (1978-12-01), Friz
"Waveguide Components," by D. J. Doughty, Journal Brit. I.R.E., (Feb. 1961) pp. 169, 176, 177, 179.
"How Cold Hobbing Shapes Intricate Parts" by Alex Phillips, The Iron Age (Apr. 3, 1958) pp. 91-93.
Cooper Brian F.
Cottey David H.
English Electric Valve Company
Goldberg Howard N.
Wallace R. S.
LandOfFree
Method for fabricating coupled cavity travelling wave tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for fabricating coupled cavity travelling wave tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for fabricating coupled cavity travelling wave tubes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1444696