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US3971965A Expired / Lapsed US ⏱️ 0.0 years remaining

Internally-focused traveling wave tube

Assignee: United States Department of the Army
•
Filing: 1975-03-31
•
Granted: 1976-07-27
•
Expires: 1995-03-31
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Abstract

Abstract An electron tube for use as a traveling-wave tube or the like comprises anlongated housing having a central evacuated passageway therethrough and a plurality of annular magnets and circuit means supported within said housing at predetermined spaced locations along the length of said passageway within said housing. Preferably, the housing comprises a pair of generally semi-cylindrical mating ceramic substrate halves, each half including semi-annular grooves along the interior thereof which mate with respective semi-annular grooves of the other half to define annular grooves in which said magnets may be positioned or formed and annular portions of said circuit means may be deposited. Preferably, the respective ceramic substrate halves also have guide paths established therein for the reception of conductive material deposited therein to form the interconnecting portions of said circuit means.

Inventors

  • 👤 Halsted W. Baker
  • 👤 Arthur H. Gottfried

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 17:49
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/02; H01J23/08; H01J23/087; H01J23/0873

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 60 words
In a traveling-wave type electron tube the improvement comprising: an elongated housing having a central evacuated passageway therethrough; a plurality of annular magnets, concentric with said central evacuated passageway, supported within said housing at predetermined spaced locations along the length of said passageway; and circuit means supported within said housing having annular portions concentric with and coincident with said magnets.
Claim 2
Dependent Claim 60 words
In a traveling-wave type electron tube the improvement comprising: an elongated housing having a central evacuated passageway therethrough; a plurality of annular magnets, concentric with said central evacuated passageway, supported within said housing at predetermined spaced locations along the length of said passageway; and circuit means supported within said housing having annular portions concentric with and coincident with said magnets.
Claim 3
Dependent Claim 28 words
The tube of claim 1 wherein said housing includes grooves on the interior thereof for receiving and supporting said magnets and said annular portions of said circuit means.
Claim 4
Dependent Claim 32 words
The tube of claim 2 wherein said housing includes a circuit guide path established along the interior thereof; and another portion of said circuit means being deposited in said circuit guide path.
Claim 5
Dependent Claim 55 words
The tube of claim 3 wherein said housing comprises a pair of generaly semi-cylindrical mating ceramic substrate halves, each half including semi-annular grooves along the interior thereof which mate with respective semi-annular grooves of the other half to define said grooves which receive and support said magnets and said annular portions of said circuit means.
Claim 6
Dependent Claim 15 words
The tube of claim 1 wherein said magnets are provided with a protective coating thereon.
Claim 7
Dependent Claim 12 words
The tube of claim 5 wherein said protective coating is electrically conductive.
Claim 8
Dependent Claim 32 words
The tube of claim 1 wherein each of said annular magnets is in the same plane with and positioned outside of a corresponding one of said annular portions of said circuit means.
Claim 9
Dependent Claim 32 words
The tube of claim 1 wherein each of said annular magnets is in the same plane with and positioned inside of a corresponding one of said annular portions of said circuit means.

References Cited (Backward Citations)

US3324339A Cited
US3508108A Cited
US3610998A Cited
US3705327A Cited
US3787747A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-07-27 1980-01-26 1980-07-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-07-27 1984-01-26 1984-07-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-07-27 1988-01-26 1988-07-27 $7700.00 Window Closed / Lapsed

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