US3717787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact depressed electron beam collector
Assignee: Unisys Corp
•
Filing: 1971-08-19
•
Granted: 1973-02-20
•
Expires: 1991-08-19
Abstract
Abstract A rugged and compact electron beam collector structure for velocity modulation or other high power electron beam vacuum tubes is characterized by means for providing high electrical voltage insulation along a low thermal impedance heat flow path. The device employs a central beam collector as a core flexibly supported within a hollow cylindrical insulator in turn flexibly supported within a vacuum envelope.
Inventors
- 👤 T Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:22
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/027
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
190 words
A linear electron beam device comprising: electron beam forming means, high frequency circuit means in energy exchanging relation with said electron beam, hollow electron beam collector means spaced from said high frequency circuit means and having an axially extending interior surface means for collecting said electrons and an axially extending outer surface means, vacuum envelope means supporting said electron beam forming means and said high frequency circuit means, flexible support means for supporting said electron beam collector means in electrically insulated, thermally conducting relation within said vacuum envelope means comprising: thin walled hollow metal tube means sealed to said axially extending outer surface Means and having an array of radially extruded dimples raised above said axially extending outer surface means, thick walled electrical insulating, thermally conducting tube means having axially extending inner and outer concentric surface means, said thick walled tube means axially extending inner surface means being sealed to said dimples, and an array of annular flexible metal support means sealed to said axially extending outer surface means of said thick walled tube means, said array being additionally sealed within said vacuum envelope means in heat exchanging relation therewith.
Claim 2
Dependent Claim
190 words
A linear electron beam device comprising: electron beam forming means, high frequency circuit means in energy exchanging relation with said electron beam, hollow electron beam collector means spaced from said high frequency circuit means and having an axially extending interior surface means for collecting said electrons and an axially extending outer surface means, vacuum envelope means supporting said electron beam forming means and said high frequency circuit means, flexible support means for supporting said electron beam collector means in electrically insulated, thermally conducting relation within said vacuum envelope means comprising: thin walled hollow metal tube means sealed to said axially extending outer surface Means and having an array of radially extruded dimples raised above said axially extending outer surface means, thick walled electrical insulating, thermally conducting tube means having axially extending inner and outer concentric surface means, said thick walled tube means axially extending inner surface means being sealed to said dimples, and an array of annular flexible metal support means sealed to said axially extending outer surface means of said thick walled tube means, said array being additionally sealed within said vacuum envelope means in heat exchanging relation therewith.
Claim 3
Dependent Claim
190 words
A linear electron beam device comprising: electron beam forming means, high frequency circuit means in energy exchanging relation with said electron beam, hollow electron beam collector means spaced from said high frequency circuit means and having an axially extending interior surface means for collecting said electrons and an axially extending outer surface means, vacuum envelope means supporting said electron beam forming means and said high frequency circuit means, flexible support means for supporting said electron beam collector means in electrically insulated, thermally conducting relation within said vacuum envelope means comprising: thin walled hollow metal tube means sealed to said axially extending outer surface Means and having an array of radially extruded dimples raised above said axially extending outer surface means, thick walled electrical insulating, thermally conducting tube means having axially extending inner and outer concentric surface means, said thick walled tube means axially extending inner surface means being sealed to said dimples, and an array of annular flexible metal support means sealed to said axially extending outer surface means of said thick walled tube means, said array being additionally sealed within said vacuum envelope means in heat exchanging relation therewith.
Claim 4
Dependent Claim
190 words
A linear electron beam device comprising: electron beam forming means, high frequency circuit means in energy exchanging relation with said electron beam, hollow electron beam collector means spaced from said high frequency circuit means and having an axially extending interior surface means for collecting said electrons and an axially extending outer surface means, vacuum envelope means supporting said electron beam forming means and said high frequency circuit means, flexible support means for supporting said electron beam collector means in electrically insulated, thermally conducting relation within said vacuum envelope means comprising: thin walled hollow metal tube means sealed to said axially extending outer surface Means and having an array of radially extruded dimples raised above said axially extending outer surface means, thick walled electrical insulating, thermally conducting tube means having axially extending inner and outer concentric surface means, said thick walled tube means axially extending inner surface means being sealed to said dimples, and an array of annular flexible metal support means sealed to said axially extending outer surface means of said thick walled tube means, said array being additionally sealed within said vacuum envelope means in heat exchanging relation therewith.
Claim 5
Dependent Claim
54 words
Apparatus as described in claim 1 wherein said electron beam collector means is coupled to electrical conductor means passing in insulated relation through said vacuum envelope means and adapted to be operated at a potential negative with respect to said high frequency circuit means and positive with respect to said electron beam forming means.
Claim 6
Dependent Claim
72 words
Apparatus as described in claim 1 wherein said annular flexible support means each comprise: outer ring-shaped wall means having a first surface adapted for sealing to said vacuum envelope means, inner-ring-shaped wall means substantially parallel to said outer ring-shaped wall means and having a second surface adapted for sealing to said thick walled tube means, and annular reentrant flexible means forming a continuous link between said outer and inner ring-shaped wall means.
Claim 7
Dependent Claim
28 words
Apparatus as described in claim 3 wherein said annular reentrant flexible means are provided with apertures for permitting gas flow therethrough during manufacture of said electron beam device.
Claim 8
Dependent Claim
24 words
Apparatus as described in claim 4 wherein said collector means, said thin walled metal tube means, and said array are made of oxygen-free copper.
Claim 9
Dependent Claim
17 words
Apparatus as described in claim 5 wherein said thick walled tube means is made of beryllium oxide.
Claim 10
Dependent Claim
40 words
Apparatus as described in claim 4 wherein said dimples of said thin walled hollow metal tube means are arranged in a substantially regular array in mutually spaced relation for permitting gas flow therethrough during manufacture of said electron beam device.
Claim 11
Dependent Claim
46 words
Apparatus as described in claim 1 wherein said hollow electron beam collector means includes electron beam collector entrance aperture defining means sealed in abutting relation with said thin walled hollow metal tube means to said axially extending inner surface means of said thick walled tube means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |