US3925701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam collector electrode for an electron beam tube
Assignee: Siemens AG
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Filing: 1974-11-04
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Granted: 1975-12-09
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Expires: 1994-11-04
Abstract
Abstract This invention relates to an electron beam collector electrode for an electron beam tube, in particular a transit-time tube, having a hollow body closed off by a collector base member in the electron beam direction. The electron beam collector electrode is designed to receive an electron beam and is especially a multistage collector. A star-shaped grid electrode extending substantially transverse to the electron beam direction and electrically insulated in respect to the base member of the collector is arranged in front of the base-member to suppress the secondary electrons.
Inventors
- 👤 Roland Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:45
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/027; H01J23/0275
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
119 words
In an electron beam collector for a transit-time tube to receive an electron beam incident on said electron beam collector having a hollow body closed off in a direction of the incident electron beam by a base member to form a cavity, and a grid located in said cavity in front of said base member and electrically insulated in relation thereto, extending transversely to the direction of the incident electron beam, the improvement of a star grid having a center and a plurality of radially extending members of definite width emanating from said center and terminating in a cavital space, wherein said center is located approximately on the axis of the incident electron beam at entry into said collector.
Claim 2
Dependent Claim
119 words
In an electron beam collector for a transit-time tube to receive an electron beam incident on said electron beam collector having a hollow body closed off in a direction of the incident electron beam by a base member to form a cavity, and a grid located in said cavity in front of said base member and electrically insulated in relation thereto, extending transversely to the direction of the incident electron beam, the improvement of a star grid having a center and a plurality of radially extending members of definite width emanating from said center and terminating in a cavital space, wherein said center is located approximately on the axis of the incident electron beam at entry into said collector.
Claim 3
Dependent Claim
37 words
An electron beam collector as defined in claim 1, wherein at least one of said radially extending members is selectively rotated about an axis of its longitudinal extension and permanently set to conform to a desired pitch.
Claim 4
Dependent Claim
22 words
An electron beam collector as defined in claim 1, wherein at least one of the radially extending members have symmetrically branched members.
Claim 5
Dependent Claim
38 words
An electron beam collector as defined in claim 3, wherein at least one of the widths of the branched members as measured transversely to the direction of the incident electron beam increases as a function of increasing radius.
Claim 6
Dependent Claim
37 words
An electron beam collector as defined in claim 4, wherein at least one of said radially extending members is selectively rotated about an axis of its longitudinal extension and permanently set to conform to a desired pitch.
Claim 7
Dependent Claim
54 words
An electron beam collector as defined in claim 1, wherein at least one of the widths of the radially extending members as measured transversely to the direction of the incident electron beam increases at least over a portion of the extending member as a function of increasing radius measured from the star grid center.
Claim 8
Dependent Claim
22 words
An electron beam collector as defined in claim 6, wherein at least one of the radially extending members have symmetrically branched members.
Claim 9
Dependent Claim
38 words
An electron beam collector as defined in claim 7, wherein at least one of the widths of the branched members as measured transversely to the direction of the incident electron beam increases as a function of increasing radius.
Claim 10
Dependent Claim
37 words
An electron beam collector as defined in claim 8, wherein at least one of said radially extending members is selectively rotated about an axis of its longitudinal extension and permanently set to conform to a desired pitch.
Claim 11
Dependent Claim
120 words
In an electron beam collector for an electron beam tube to receive an electron beam incident on said electron beam collector having a hollow body closed off in a direction of the incident electron beam by a base member to form a cavity, and a grid located in said cavity in front of said base member and electrically insulated in relation thereto, extending transversely to the direction of the incident electron beam, the improvement of a star grid having a center and a plurality of radially extending members of definite width emanating from said center and terminating in a cavital space, wherein said center is located approximately on the axis of the incident electron beam at entry into said collector.
Claim 12
Dependent Claim
120 words
In an electron beam collector for an electron beam tube to receive an electron beam incident on said electron beam collector having a hollow body closed off in a direction of the incident electron beam by a base member to form a cavity, and a grid located in said cavity in front of said base member and electrically insulated in relation thereto, extending transversely to the direction of the incident electron beam, the improvement of a star grid having a center and a plurality of radially extending members of definite width emanating from said center and terminating in a cavital space, wherein said center is located approximately on the axis of the incident electron beam at entry into said collector.
Claim 13
Dependent Claim
37 words
An electron beam collector as defined in claim 10, wherein at least one of said radially extending members is selectively rotated about an axis of its longitudinal extension and permanently set to conform to a desired pitch.
Claim 14
Dependent Claim
22 words
An electron beam collector as defined in claim 10, wherein at least one of the radially extending members have symmetrically branched members.
Claim 15
Dependent Claim
38 words
An electron beam collector as defined in claim 12, wherein at least one of the widths of the branched members as measured transversely to the direction of the incident electron beam increases as a function of increasing radius.
Claim 16
Dependent Claim
37 words
An electron beam collector as defined in claim 13, wherein at least one of said radially extending members is selectively rotated about an axis of its longitudinal extension and permanently set to conform to a desired pitch.
Claim 17
Dependent Claim
54 words
An electron beam collector as defined in claim 10, wherein at least one of the widths of the radially extending members as measured transversely to the direction of the incident electron beam increases at least over a portion of the extending member as a function of increasing radius measured from the star grid center.
Claim 18
Dependent Claim
21 words
An electron beam as defined in claim 15, wherein at least one of the radially extending members have symmetrically branched members.
Claim 19
Dependent Claim
38 words
An electron beam collector as defined in claim 16, wherein at least one of the widths of the branched members as measured transversely to the direction of the incident electron beam increases as a function of increasing radius.
Claim 20
Dependent Claim
37 words
An electron beam collector as defined in claim 17, wherein at least one of said radially extending members is selectively rotated about an axis of its longitudinal extension and permanently set to conform to a desired pitch.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |