Additive manufacturing of three-dimensional articles
US-2017348791-A1 · Dec 7, 2017 · US
Electron gun and radiation generating apparatus
US10074503B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10074503-B2 |
| Application number | US-201415037971-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 16, 2014 |
| Priority date | Nov 19, 2013 |
| Publication date | Sep 11, 2018 |
| Grant date | Sep 11, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The invention relates to an electron gun for generating a flat electron beam, comprising a cathode with an emission surface which is curved about a central axis and which is designed to emit electrons. The electron gun further comprises an accelerating device for accelerating the electrons in a radial direction towards a target region on the central axis. Furthermore, the emission surface has a width in the azimuth direction and a height oriented perpendicularly to the width, said width being at least ten times greater than the height.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electron gun for generating a flat electron beam, the electron gun comprising: a cathode comprising an emission surface that is curved about a central axis and is configured to emit electrons; and an accelerator operable to accelerate the electrons in a radial direction toward a target region on the central axis, wherein the emission surface has a width in an azimuthal direction, and the emission surface has a height oriented perpendicularly to…
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10074503B2 cover?
- The invention relates to an electron gun for generating a flat electron beam, comprising a cathode with an emission surface which is curved about a central axis and which is designed to emit electrons. The electron gun further comprises an accelerating device for accelerating the electrons in a radial direction towards a target region on the central axis. Furthermore, the emission surface has a…
- Who is the assignee on this patent?
- Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification H01J3/027. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 11 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).